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International Journal of Mechanical Engineering and Technology (IJMET)Volume 8, Issue 7, JulyAvailable online at ISSN Print: 0976 © IAEME
A SUBASSEMBLY IDENTI
ABSTRACTS
detecstability relations between pair of surface in finachieve economized assembly process.Key words:generationCite this ArticleAssembly Sequence Generationand http://www.i
1. INTRODUCTIONRecent trends in total number of parts to minimize assembly efforts, which greatly influence the geometrieschallenging and complicated task. A feasibility and stability for its practical possibilitygeometric feasibility testing through graphical methods and improved matrix representation methods [Aided Design (CAD) based environment in order to miBahubalendruni and Biswal made efforts to test geometric feasibility of assembling pabounding box methods through CAD interfacing [
Stability is one essential criteria to be followed while generating assembly sequence, several researchers have not considered this criteria and few researchers assumed this criteria to minimizparts considering hard and soft connectiorepresentation does not hold completeBahubalendruni presented influence of considering and ignoring assembly stability criteria on optimal assembly sequence planning in terms of quality of resulted assembly sequence and
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International Journal of Mechanical Engineering and Technology (IJMET)Volume 8, Issue 7, JulyAvailable online at http://www.iaeme.com/IJMEISSN Print: 0976-6340 and ISSN Online: 0976
© IAEME Publication
A SUBASSEMBLY IDENTIFOR OPTIMAL
Department of Mechanical Engineering, GMRIT, Rajam, India
ABSTRACT Stable sub assembly detection
detecting such subassemblies stability relations between pair of surface features in finding possible parallel subassemblies during assembly sequence generation to achieve economized assembly process.Key words: generation. Cite this ArticleAssembly Sequence Generationand Technologyhttp://www.iaeme.com/IJME
INTRODUCTIONRecent trends in Dtotal number of parts to minimize assembly efforts, which greatly influence the geometries. Finding a valid assembly sequence for the parts challenging and complicated task. A feasibility and stability for its practical possibilitygeometric feasibility testing through graphical methods and improved matrix representation methods [6-9]. Several researchers tried to extract interference free matrices from Computer Aided Design (CAD) based environment in order to miBahubalendruni and Biswal made efforts to test geometric feasibility of assembling pabounding box methods through CAD interfacing [
Stability is one essential criteria to be followed while generating assembly sequence, several researchers have not considered this criteria and few researchers assumed this criteria to minimize the computational time [parts considering hard and soft connectiorepresentation does not hold complete
balendruni presented influence of considering and ignoring assembly stability criteria on optimal assembly sequence planning in terms of quality of resulted assembly sequence and
http://www.iaeme.com/IJMET/index.
International Journal of Mechanical Engineering and Technology (IJMET)Volume 8, Issue 7, July 2017, pp.
http://www.iaeme.com/IJME6340 and ISSN Online: 0976
Publication
A SUBASSEMBLY IDENTIFOR OPTIMAL
Department of Mechanical Engineering, GMRIT, Rajam, India
table sub assembly detection ting such subassemblies
stability relations between pair of features and involvement
ding possible parallel subassemblies during assembly sequence generation to achieve economized assembly process.
Subassembly detection, Assembly stabilit
Cite this Article: D Venkata RaoAssembly Sequence Generation
Technology, 8(7), 2017, pp.aeme.com/IJME
INTRODUCTION Design For A
total number of parts to minimize assembly efforts, which greatly influence the Finding a valid assembly sequence for the parts
challenging and complicated task. A feasibility and stability for its practical possibilitygeometric feasibility testing through graphical methods and improved matrix representation
]. Several researchers tried to extract interference free matrices from Computer Aided Design (CAD) based environment in order to miBahubalendruni and Biswal made efforts to test geometric feasibility of assembling pabounding box methods through CAD interfacing [
Stability is one essential criteria to be followed while generating assembly sequence, several researchers have not considered this criteria and few researchers assumed this criteria
e the computational time [parts considering hard and soft connectiorepresentation does not hold complete
balendruni presented influence of considering and ignoring assembly stability criteria on optimal assembly sequence planning in terms of quality of resulted assembly sequence and
IJMET/index.asp
International Journal of Mechanical Engineering and Technology (IJMET)2017, pp. 449–454, Article ID: IJM
http://www.iaeme.com/IJME6340 and ISSN Online: 0976
Scopus Indexed
A SUBASSEMBLY IDENTIFOR OPTIMAL ASSEMBLY SEQUENCE
GENERATIOND Venkata Rao
Department of Mechanical Engineering, GMRIT, Rajam, India
table sub assembly detection reduces the assembly efforts and time, in this paper ting such subassemblies using part concatenation method considering
stability relations between pair of components is discussedinvolvement of physical connectors. The proposed method helps
ding possible parallel subassemblies during assembly sequence generation to achieve economized assembly process.
Subassembly detection, Assembly stabilit
D Venkata Rao. A Subassembly Identification Method for Optimal Assembly Sequence Generation. International Journal of Mechanical Engineering
, 8(7), 2017, pp. 449–aeme.com/IJMET/issues.asp?JType=IJMET&VType=8&IType=7
Assembly (DFA)total number of parts to minimize assembly efforts, which greatly influence the
Finding a valid assembly sequence for the parts challenging and complicated task. A valid sequence must exhibit two critical qualities namely feasibility and stability for its practical possibilitygeometric feasibility testing through graphical methods and improved matrix representation
]. Several researchers tried to extract interference free matrices from Computer Aided Design (CAD) based environment in order to miBahubalendruni and Biswal made efforts to test geometric feasibility of assembling pabounding box methods through CAD interfacing [
Stability is one essential criteria to be followed while generating assembly sequence, several researchers have not considered this criteria and few researchers assumed this criteria
e the computational time [11-13parts considering hard and soft connectiorepresentation does not hold complete
balendruni presented influence of considering and ignoring assembly stability criteria on optimal assembly sequence planning in terms of quality of resulted assembly sequence and
asp 449
International Journal of Mechanical Engineering and Technology (IJMET)Article ID: IJM
http://www.iaeme.com/IJMET/issues.asp?JType=IJME6340 and ISSN Online: 0976-6359
Indexed
A SUBASSEMBLY IDENTIFICATIONASSEMBLY SEQUENCE
GENERATIOND Venkata Rao
Department of Mechanical Engineering, GMRIT, Rajam, India
reduces the assembly efforts and time, in this paper using part concatenation method considering
components is discussedof physical connectors. The proposed method helps
ding possible parallel subassemblies during assembly sequence generation to achieve economized assembly process.
Subassembly detection, Assembly stabilit
A Subassembly Identification Method for Optimal International Journal of Mechanical Engineering
–454. asp?JType=IJMET&VType=8&IType=7
ssembly (DFA) encourages the engineers total number of parts to minimize assembly efforts, which greatly influence the
Finding a valid assembly sequence for the parts valid sequence must exhibit two critical qualities namely
feasibility and stability for its practical possibility [1geometric feasibility testing through graphical methods and improved matrix representation
]. Several researchers tried to extract interference free matrices from Computer Aided Design (CAD) based environment in order to miBahubalendruni and Biswal made efforts to test geometric feasibility of assembling pabounding box methods through CAD interfacing [15
Stability is one essential criteria to be followed while generating assembly sequence, several researchers have not considered this criteria and few researchers assumed this criteria
13]. Smith proposed stability representation between parts considering hard and soft connections between pair of parts [11representation does not hold complete information due to narrow categorization.
balendruni presented influence of considering and ignoring assembly stability criteria on optimal assembly sequence planning in terms of quality of resulted assembly sequence and
International Journal of Mechanical Engineering and Technology (IJMET)Article ID: IJMET_08_07_051
asp?JType=IJME
FICATIONASSEMBLY SEQUENCE
GENERATION D Venkata Rao
Department of Mechanical Engineering, GMRIT, Rajam, India
reduces the assembly efforts and time, in this paper using part concatenation method considering
components is discussed. The stability due to of physical connectors. The proposed method helps
ding possible parallel subassemblies during assembly sequence generation to
Subassembly detection, Assembly stabilit
A Subassembly Identification Method for Optimal International Journal of Mechanical Engineering
asp?JType=IJMET&VType=8&IType=7
encourages the engineers total number of parts to minimize assembly efforts, which greatly influence the
Finding a valid assembly sequence for the parts valid sequence must exhibit two critical qualities namely
[1-5]. Lots of research has been done on geometric feasibility testing through graphical methods and improved matrix representation
]. Several researchers tried to extract interference free matrices from Computer Aided Design (CAD) based environment in order to minimize the time and efforts [10Bahubalendruni and Biswal made efforts to test geometric feasibility of assembling pa
5-22]. Stability is one essential criteria to be followed while generating assembly sequence,
several researchers have not considered this criteria and few researchers assumed this criteria Smith proposed stability representation between
ns between pair of parts [11information due to narrow categorization.
balendruni presented influence of considering and ignoring assembly stability criteria on optimal assembly sequence planning in terms of quality of resulted assembly sequence and
International Journal of Mechanical Engineering and Technology (IJMET) 07_051
asp?JType=IJMET&VType=8&IType=7
FICATION METHOD ASSEMBLY SEQUENCE
Department of Mechanical Engineering, GMRIT, Rajam, India
reduces the assembly efforts and time, in this paper using part concatenation method considering
. The stability due to of physical connectors. The proposed method helps
ding possible parallel subassemblies during assembly sequence generation to
Subassembly detection, Assembly stability, Assembly sequence
A Subassembly Identification Method for Optimal International Journal of Mechanical Engineering
asp?JType=IJMET&VType=8&IType=7
encourages the engineers towards reducing the total number of parts to minimize assembly efforts, which greatly influence the
Finding a valid assembly sequence for the parts with altered topology is a valid sequence must exhibit two critical qualities namely
Lots of research has been done on geometric feasibility testing through graphical methods and improved matrix representation
]. Several researchers tried to extract interference free matrices from Computer nimize the time and efforts [10
Bahubalendruni and Biswal made efforts to test geometric feasibility of assembling pa
Stability is one essential criteria to be followed while generating assembly sequence, several researchers have not considered this criteria and few researchers assumed this criteria
Smith proposed stability representation between ns between pair of parts [11-12
information due to narrow categorization. balendruni presented influence of considering and ignoring assembly stability criteria on
optimal assembly sequence planning in terms of quality of resulted assembly sequence and
T&VType=8&IType=7
METHOD ASSEMBLY SEQUENCE
Department of Mechanical Engineering, GMRIT, Rajam, India
reduces the assembly efforts and time, in this paper using part concatenation method considering different
. The stability due to mating of physical connectors. The proposed method helps
ding possible parallel subassemblies during assembly sequence generation to
y, Assembly sequence
A Subassembly Identification Method for Optimal International Journal of Mechanical Engineering
asp?JType=IJMET&VType=8&IType=7
towards reducing the total number of parts to minimize assembly efforts, which greatly influence the
altered topology is a valid sequence must exhibit two critical qualities namely
Lots of research has been done on geometric feasibility testing through graphical methods and improved matrix representation
]. Several researchers tried to extract interference free matrices from Computer nimize the time and efforts [10
Bahubalendruni and Biswal made efforts to test geometric feasibility of assembling pa
Stability is one essential criteria to be followed while generating assembly sequence, several researchers have not considered this criteria and few researchers assumed this criteria
Smith proposed stability representation between 12]. However these
information due to narrow categorization. balendruni presented influence of considering and ignoring assembly stability criteria on
optimal assembly sequence planning in terms of quality of resulted assembly sequence and
T&VType=8&IType=7
METHOD ASSEMBLY SEQUENCE
reduces the assembly efforts and time, in this paper different
mating of physical connectors. The proposed method helps
ding possible parallel subassemblies during assembly sequence generation to
y, Assembly sequence
A Subassembly Identification Method for Optimal International Journal of Mechanical Engineering
towards reducing the total number of parts to minimize assembly efforts, which greatly influence the part
altered topology is a valid sequence must exhibit two critical qualities namely
Lots of research has been done on geometric feasibility testing through graphical methods and improved matrix representation
]. Several researchers tried to extract interference free matrices from Computer nimize the time and efforts [10-14].
Bahubalendruni and Biswal made efforts to test geometric feasibility of assembling part using
Stability is one essential criteria to be followed while generating assembly sequence, several researchers have not considered this criteria and few researchers assumed this criteria
Smith proposed stability representation between ]. However these
information due to narrow categorization. balendruni presented influence of considering and ignoring assembly stability criteria on
optimal assembly sequence planning in terms of quality of resulted assembly sequence and
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computational time [matrix in finding out stable subassemblies in order to perform parallel assembly sequence generation. The proposed method is an attempt to detect stable subassemblies using combined stability matrix.
2. PREREQUISITES In order to generate smatrix is a symmetric matrix created using binary codes (0,1), where “0” represents no surface contact between pair of parts indicated in row and column and whereas “1” represents significant surface contact. types of possibilities namely partial stability, permanent stability due to part mating surfaces and usage of external connectors, which can be indicated with 1, 2 matrix and combined stability matrix for the 7
3. PARTIAL AND PERMANENAn assembly subset is called as partial assembly subset, if at least one part in the subset is partially stable. These subsets further helpful in determining permanent asssequential assembly sequence planning process. There exist two different possibilities of partial subset formulation as stated below.
A Subassembly Identification Method for Optimal Assembly Sequence Generation
http://www.iaeme.com/
computational time [matrix in finding out stable subassemblies in order to perform parallel assembly sequence generation. The proposed method is an attempt to detect stable subassemblies using combined stability matrix.
PREREQUISITES In order to generate smatrix is a symmetric matrix created using binary codes (0,1), where “0” represents no surface contact between pair of parts indicated in row and column and whereas “1” represents
nificant surface contact. types of possibilities namely partial stability, permanent stability due to part mating surfaces and usage of external connectors, which can be indicated with 1, 2 matrix and combined stability matrix for the 7
01010101100110
7654321
21
Figure 1 Liaison Matri
PARTIAL AND PERMANENAn assembly subset is called as partial assembly subset, if at least one part in the subset is partially stable. These subsets further helpful in determining permanent asssequential assembly sequence planning process. There exist two different possibilities of partial subset formulation as stated below.
A Subassembly Identification Method for Optimal Assembly Sequence Generation
http://www.iaeme.com/IJMET/index.
computational time [6]. The literature reveal that no efforts are made using matrix in finding out stable subassemblies in order to perform parallel assembly sequence generation. The proposed method is an attempt to detect stable subassemblies using combined
PREREQUISITES In order to generate stable assembly subsets, liaison and stability matrices are used. Liaison matrix is a symmetric matrix created using binary codes (0,1), where “0” represents no surface contact between pair of parts indicated in row and column and whereas “1” represents
nificant surface contact. Combined stability matrix is a square matrix with three different types of possibilities namely partial stability, permanent stability due to part mating surfaces and usage of external connectors, which can be indicated with 1, 2 matrix and combined stability matrix for the 7
00000000010010000001001011015432
Liaison Matri
PARTIAL AND PERMANENAn assembly subset is called as partial assembly subset, if at least one part in the subset is partially stable. These subsets further helpful in determining permanent asssequential assembly sequence planning process. There exist two different possibilities of partial subset formulation as stated below.
A Subassembly Identification Method for Optimal Assembly Sequence Generation
IJMET/index.asp
]. The literature reveal that no efforts are made using matrix in finding out stable subassemblies in order to perform parallel assembly sequence generation. The proposed method is an attempt to detect stable subassemblies using combined
table assembly subsets, liaison and stability matrices are used. Liaison matrix is a symmetric matrix created using binary codes (0,1), where “0” represents no surface contact between pair of parts indicated in row and column and whereas “1” represents
Combined stability matrix is a square matrix with three different types of possibilities namely partial stability, permanent stability due to part mating surfaces and usage of external connectors, which can be indicated with 1, 2 matrix and combined stability matrix for the 7
Figure 1
010100000001000000111765
Liaison Matrix for Product
PARTIAL AND PERMANENT ASSEMBLY SUBSETSAn assembly subset is called as partial assembly subset, if at least one part in the subset is partially stable. These subsets further helpful in determining permanent asssequential assembly sequence planning process. There exist two different possibilities of partial subset formulation as stated below.
A Subassembly Identification Method for Optimal Assembly Sequence Generation
asp 450
]. The literature reveal that no efforts are made using matrix in finding out stable subassemblies in order to perform parallel assembly sequence generation. The proposed method is an attempt to detect stable subassemblies using combined
table assembly subsets, liaison and stability matrices are used. Liaison matrix is a symmetric matrix created using binary codes (0,1), where “0” represents no surface contact between pair of parts indicated in row and column and whereas “1” represents
Combined stability matrix is a square matrix with three different types of possibilities namely partial stability, permanent stability due to part mating surfaces and usage of external connectors, which can be indicated with 1, 2 matrix and combined stability matrix for the 7-part product show in Figure 1 is listed below.
Figure 1 A 7-Part assembly
roduct Figure 2
T ASSEMBLY SUBSETSAn assembly subset is called as partial assembly subset, if at least one part in the subset is partially stable. These subsets further helpful in determining permanent asssequential assembly sequence planning process. There exist two different possibilities of partial subset formulation as stated below.
A Subassembly Identification Method for Optimal Assembly Sequence Generation
]. The literature reveal that no efforts are made using matrix in finding out stable subassemblies in order to perform parallel assembly sequence generation. The proposed method is an attempt to detect stable subassemblies using combined
table assembly subsets, liaison and stability matrices are used. Liaison matrix is a symmetric matrix created using binary codes (0,1), where “0” represents no surface contact between pair of parts indicated in row and column and whereas “1” represents
Combined stability matrix is a square matrix with three different types of possibilities namely partial stability, permanent stability due to part mating surfaces and usage of external connectors, which can be indicated with 1, 2
part product show in Figure 1 is listed below.
Part assembly
3030030
7654321
21
Figure 2 Stabi
T ASSEMBLY SUBSETSAn assembly subset is called as partial assembly subset, if at least one part in the subset is partially stable. These subsets further helpful in determining permanent asssequential assembly sequence planning process. There exist two different possibilities of
A Subassembly Identification Method for Optimal Assembly Sequence Generation
]. The literature reveal that no efforts are made using matrix in finding out stable subassemblies in order to perform parallel assembly sequence generation. The proposed method is an attempt to detect stable subassemblies using combined
table assembly subsets, liaison and stability matrices are used. Liaison matrix is a symmetric matrix created using binary codes (0,1), where “0” represents no surface contact between pair of parts indicated in row and column and whereas “1” represents
Combined stability matrix is a square matrix with three different types of possibilities namely partial stability, permanent stability due to part mating surfaces and usage of external connectors, which can be indicated with 1, 2 and 3 respectively.
part product show in Figure 1 is listed below.
00000000000010000002002031035432
Stability Matrix
T ASSEMBLY SUBSETS An assembly subset is called as partial assembly subset, if at least one part in the subset is partially stable. These subsets further helpful in determining permanent asssequential assembly sequence planning process. There exist two different possibilities of
A Subassembly Identification Method for Optimal Assembly Sequence Generation
]. The literature reveal that no efforts are made using these stability matrix in finding out stable subassemblies in order to perform parallel assembly sequence generation. The proposed method is an attempt to detect stable subassemblies using combined
table assembly subsets, liaison and stability matrices are used. Liaison matrix is a symmetric matrix created using binary codes (0,1), where “0” represents no surface contact between pair of parts indicated in row and column and whereas “1” represents
Combined stability matrix is a square matrix with three different types of possibilities namely partial stability, permanent stability due to part mating surfaces
and 3 respectively.part product show in Figure 1 is listed below.
000100000001000000313765
lity Matrix for Product
An assembly subset is called as partial assembly subset, if at least one part in the subset is partially stable. These subsets further helpful in determining permanent assembly subset and sequential assembly sequence planning process. There exist two different possibilities of
A Subassembly Identification Method for Optimal Assembly Sequence Generation
these stability matrix in finding out stable subassemblies in order to perform parallel assembly sequence generation. The proposed method is an attempt to detect stable subassemblies using combined
table assembly subsets, liaison and stability matrices are used. Liaison matrix is a symmetric matrix created using binary codes (0,1), where “0” represents no surface contact between pair of parts indicated in row and column and whereas “1” represents
Combined stability matrix is a square matrix with three different types of possibilities namely partial stability, permanent stability due to part mating surfaces
and 3 respectively. Liaison part product show in Figure 1 is listed below.
for Product
An assembly subset is called as partial assembly subset, if at least one part in the subset is embly subset and
sequential assembly sequence planning process. There exist two different possibilities of
D Venkata Rao
http://www.iaeme.com/IJMET/index.asp 451 [email protected]
Case 1 When appending part exhibits partial stability with respect to all parts in the existent assembly subset irrespective of the nature of the existent assembly subset. Let us consider part-6 to join an existent partial assembly subset (1-4), part-6 is offered only partial stability with respect to part-1 (S(1,6)=1), which results in partial assembly subset (1-4-6). While appending part-4 to assembly subset (1-2), though existent assembly subset is permanent stable, appending part-4 is offered only partial stability with respect to part-1 (S(1,4)=1) results in partial assembly subset (1-2-4).
Case 2 Even though appending part exhibits permanent stability with respect to all parts in the existent assembly subset, if the existent assembly subset is a partially stable the resulted nature will be partially stable. While appending part-2 to assembly subset (1-4), though appending part-2 is offered permanent stability with respect to part-1 (S(1,2)=3) results in partial assembly subset (1-2-4) due to partial nature of existent assembly subset.
An assembly subset is called as permanent assembly subset, when all the parts in the assembly maintain its respective positions with respect to all mating parts irrespective of orientation. This can be achieved when all the parts in the sub assembly exhibit permanent stability. The permanent stable assembly subset can be formed at two different conditions.
Case 3 When appending part exhibits permanent stability with respect to any of the parts in the existent permanent stable assembly subset. Let us consider part-3 to join an existent permanent assembly subset (1-2), part-3 is offered permanent stability with respect to part-2 (S(2,3)=2), which results in permanent assembly subset (1-2-3).
Case 4 If appending part exhibits permanent stability with respect to any of the parts in the existent partially stable assembly subset as long as the partially stable part motions are completely constrained due to the appending part. While appending part-5 to assembly subset (1-4), though existent assembly subset is partially stable, the appending part bring stability to all the unstable parts and results in permanent stable assembly subset (1-4-5).
Table 1 All possible instances of assembly subset generation
Possibility
Existent assembly subset
Nature of the Existent assembly
subset
Appending part
Type of stability of appending part
Resultant
assembly subset
Nature of the
Resultant assembly
subset Case 1 1-2 Permanent 4 S(1,4)=1 Partial 1-2-4 Partial
1-4 Partial 6 S(1,6)=1 Partial 1-4-6 Partial Case 2 1-4 Partial 2 S(1,2)=3 Permanent 1-4-2 Partial Case 3 1-2 Permanent 3 S(2,3)=2 Permanent 1-2-3 Permanent Case 4 1-4 Partial 5 S(1,5)=3 Permanent 1-4-5 Permanent
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4. ASSEMBLY SEQUENCE GEIMPLEMENTATIONThe proposed method generate assembly subsets by appending a nonexistent part/subassembly to an existesting methods. The necessary data to perform assembly predicate testing can be extracted from a product using existing methods [1]. When appending part qualify stability; the method will check for all the possible instances described in sectionwill be stored under two different categories. Therese resulted subsets will be further used to generate next level assembly subsets till the number of parts in assembnumber parts in assembly subset equal to the part count of the chosen product. The proposed method is indicated through flow chart in Figure 2.
Figure 2
During the assembly subset generation if there exist any similar assembly subset with altered sequence, the redundant subset will be identified and erased using assembly indexing method [8].Assembly index values and assembly subset alternateassembly subsets are shown in Table shown in Figure.1 and the resulted intermediate level permanent and partially stable assembly subsets are listed in table
A Subassembly Identification Method for Optimal Assembly Sequence Generation
http://www.iaeme.com/
ASSEMBLY SEQUENCE GEIMPLEMENTATIONThe proposed method generate assembly subsets by appending a nonexistent part/subassembly to an existesting methods. The necessary data to perform assembly predicate testing can be extracted from a product using existing methods [1]. When appending part qualify stability; the method
eck for all the possible instances described in sectionwill be stored under two different categories. Therese resulted subsets will be further used to generate next level assembly subsets till the number of parts in assembnumber parts in assembly subset equal to the part count of the chosen product. The proposed method is indicated through flow chart in Figure 2.
Figure 2 An efficient method of assembly sequence generation through subassembly id
During the assembly subset generation if there exist any similar assembly subset with altered sequence, the redundant subset will be identified and erased using assembly indexing method [8].Assembly index values and assembly subset alternateassembly subsets are shown in Table shown in Figure.1 and the resulted intermediate level permanent and partially stable assembly subsets are listed in table
A Subassembly Identification Method for Optimal Assembly Sequence Generation
http://www.iaeme.com/IJMET/index.
ASSEMBLY SEQUENCE GEIMPLEMENTATION The proposed method generate assembly subsets by appending a nonexistent part/subassembly to an existent assembly subset when it qualify defined assembly predicate testing methods. The necessary data to perform assembly predicate testing can be extracted from a product using existing methods [1]. When appending part qualify stability; the method
eck for all the possible instances described in sectionwill be stored under two different categories. Therese resulted subsets will be further used to generate next level assembly subsets till the number of parts in assembnumber parts in assembly subset equal to the part count of the chosen product. The proposed method is indicated through flow chart in Figure 2.
An efficient method of assembly sequence generation through subassembly id
During the assembly subset generation if there exist any similar assembly subset with altered sequence, the redundant subset will be identified and erased using assembly indexing method [8].Assembly index values and assembly subset alternateassembly subsets are shown in Table shown in Figure.1 and the resulted intermediate level permanent and partially stable assembly subsets are listed in table 1.
A Subassembly Identification Method for Optimal Assembly Sequence Generation
IJMET/index.asp
ASSEMBLY SEQUENCE GENERATION METHOD AND
The proposed method generate assembly subsets by appending a nonexistent tent assembly subset when it qualify defined assembly predicate
testing methods. The necessary data to perform assembly predicate testing can be extracted from a product using existing methods [1]. When appending part qualify stability; the method
eck for all the possible instances described in sectionwill be stored under two different categories. Therese resulted subsets will be further used to generate next level assembly subsets till the number of parts in assembnumber parts in assembly subset equal to the part count of the chosen product. The proposed method is indicated through flow chart in Figure 2.
An efficient method of assembly sequence generation through subassembly id
During the assembly subset generation if there exist any similar assembly subset with altered sequence, the redundant subset will be identified and erased using assembly indexing method [8].Assembly index values and assembly subset alternateassembly subsets are shown in Table 1. The proposed method is implemented on product shown in Figure.1 and the resulted intermediate level permanent and partially stable assembly
A Subassembly Identification Method for Optimal Assembly Sequence Generation
asp 452
NERATION METHOD AND
The proposed method generate assembly subsets by appending a nonexistent tent assembly subset when it qualify defined assembly predicate
testing methods. The necessary data to perform assembly predicate testing can be extracted from a product using existing methods [1]. When appending part qualify stability; the method
eck for all the possible instances described in sectionwill be stored under two different categories. Therese resulted subsets will be further used to generate next level assembly subsets till the number of parts in assembnumber parts in assembly subset equal to the part count of the chosen product. The proposed method is indicated through flow chart in Figure 2.
An efficient method of assembly sequence generation through subassembly id
During the assembly subset generation if there exist any similar assembly subset with altered sequence, the redundant subset will be identified and erased using assembly indexing method [8].Assembly index values and assembly subset alternate
. The proposed method is implemented on product shown in Figure.1 and the resulted intermediate level permanent and partially stable assembly
A Subassembly Identification Method for Optimal Assembly Sequence Generation
NERATION METHOD AND
The proposed method generate assembly subsets by appending a nonexistent tent assembly subset when it qualify defined assembly predicate
testing methods. The necessary data to perform assembly predicate testing can be extracted from a product using existing methods [1]. When appending part qualify stability; the method
eck for all the possible instances described in section-3 and the resulted assembly sets will be stored under two different categories. Therese resulted subsets will be further used to generate next level assembly subsets till the number of parts in assembnumber parts in assembly subset equal to the part count of the chosen product. The proposed
An efficient method of assembly sequence generation through subassembly id
During the assembly subset generation if there exist any similar assembly subset with altered sequence, the redundant subset will be identified and erased using assembly indexing method [8].Assembly index values and assembly subset alternate
. The proposed method is implemented on product shown in Figure.1 and the resulted intermediate level permanent and partially stable assembly
A Subassembly Identification Method for Optimal Assembly Sequence Generation
NERATION METHOD AND
The proposed method generate assembly subsets by appending a nonexistent tent assembly subset when it qualify defined assembly predicate
testing methods. The necessary data to perform assembly predicate testing can be extracted from a product using existing methods [1]. When appending part qualify stability; the method
3 and the resulted assembly sets will be stored under two different categories. Therese resulted subsets will be further used to generate next level assembly subsets till the number of parts in assembly subsets equal to total number parts in assembly subset equal to the part count of the chosen product. The proposed
An efficient method of assembly sequence generation through subassembly id
During the assembly subset generation if there exist any similar assembly subset with altered sequence, the redundant subset will be identified and erased using assembly indexing method [8].Assembly index values and assembly subset alternate possible variants for 2
. The proposed method is implemented on product shown in Figure.1 and the resulted intermediate level permanent and partially stable assembly
A Subassembly Identification Method for Optimal Assembly Sequence Generation
NERATION METHOD AND ITS
The proposed method generate assembly subsets by appending a nonexistent tent assembly subset when it qualify defined assembly predicate
testing methods. The necessary data to perform assembly predicate testing can be extracted from a product using existing methods [1]. When appending part qualify stability; the method
3 and the resulted assembly sets will be stored under two different categories. Therese resulted subsets will be further used to
ly subsets equal to total number parts in assembly subset equal to the part count of the chosen product. The proposed
An efficient method of assembly sequence generation through subassembly identification
During the assembly subset generation if there exist any similar assembly subset with altered sequence, the redundant subset will be identified and erased using assembly indexing
possible variants for 2. The proposed method is implemented on product
shown in Figure.1 and the resulted intermediate level permanent and partially stable assembly
A Subassembly Identification Method for Optimal Assembly Sequence Generation
The proposed method generate assembly subsets by appending a nonexistent tent assembly subset when it qualify defined assembly predicate
testing methods. The necessary data to perform assembly predicate testing can be extracted from a product using existing methods [1]. When appending part qualify stability; the method
3 and the resulted assembly sets will be stored under two different categories. Therese resulted subsets will be further used to
ly subsets equal to total number parts in assembly subset equal to the part count of the chosen product. The proposed
entification
During the assembly subset generation if there exist any similar assembly subset with altered sequence, the redundant subset will be identified and erased using assembly indexing
possible variants for 2-part . The proposed method is implemented on product
shown in Figure.1 and the resulted intermediate level permanent and partially stable assembly
D Venkata Rao
http://www.iaeme.com/IJMET/index.asp 453 [email protected]
Table 1 Assembly subset generation at intermediate levels
2-Part subsets Alternate sets Assembly Index 3-Part subsets 4-Part subsets
Permanent assembly subsets
1-2 2-1 11 1-(2-3) 1-(2-3)-5 1-5 5-1 10001 1-2-5 1-(2-3)-7 1-7 7-1 1000001 1-2-7 1-2-4-5 2-3 3-2 110 1-4-5 1-2-5-7
1-5-7 1-2-6-7
1-6-7 1-4-5-7
Partial Assembly subsets
1-4 - 1001 1-2-4 1-(2-3)-4 1-6 - 100001 1-2-6 1-(2-3)-6
1-4-6 1-2-4-6
1-4-7 1-2-4-7
1-5-6 1-2-5-6
1-4-5-6
1-4-6-7
1-5-6-7
5. CONCLUSIONS A novel method to generate assembly sequence generation through subassembly detection is proposed and illustrated with an example. Detailed possibilities of stability during subassembly detection is well discussed by considering different possibilities of assembly stabllity instance between pair of parts. The method can be implented for parallel and sequential assembly sequence planning.
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