,
_mail: [email protected]
: . ., . , . . , .
: , , , .
. , . , , , .
__________________________________
,
, . . . , , . .
, , . , . , , , .
. :
R(t)= 1- = = (1)
:
R(t)= 1- = (2)
(2) t = t (1)
1. R(t) ka F(t)
. F(t) . n, , , F(t) kako je prikazano na slici (2.).
2. F(t).
je F(t)=0. O . , , F(t) = 1.
F(t) , :
F(t) = (3)
(3) f(t)
f(t) = (4)
F(t) pojam ,, ,,. R(t) ( 3).
3. R(t) F(t)
t,
F(t + ) F(t) = - = R(t) R(t+ (5)
, :
(6)
(1.) (6.) :
== (7)
: n(t) t,
n(t+ - ,
N(= n(t+- .
(7)
0 :
= = (8)
, (4.).
4.
, , . , . , (5.)
5.
. . , .
, , , , . . , .
. : , , , . t f(t) (6.) (6.)
6.
:
t = m = = (9)
o :
t = m = (10)
, . . , , ,5
F(t) = = 0,5 (11)
. . , ., , .
( ) . , , , , . , , .
CONCLUSION
Failure of technical system is an event that results in the loss
of operating capacity. Each failure occurs after a certain time
period of operation when any parameter of functioning reaches a
boundary value. System failure can occur due to the destruction of
a mechanical part, interruption of some functional connection of
the system etc., but it is also considered that failure has
occurred due to the exceeding the flux limit of flux, reducing the
degree of efficiency below the required value.
Object (technical system) in the reliability theory represents
an object to which the reliability refers. When it comes to
technical systems, the object of reliability in the design phase
can be mechanical part, kinematic part, mechanical assembly,
aggregate, machine and group of the machines. In reliability theory
is adopted that the element presents the object which reliability
is determined independently of its component parts, and that system
presents the object which reliability is studied depending on its
component parts, as is thoroughly analyzed in this paper.
D.Mili, Pouzdanost mainskih sistema, Univerzitet u Niu, Ni,
2005.
V.Miltenovi, Razvoj proizvoda, Univerzitet u Niu, Ni, 2003.
Z. Savi i dr.,Inenjersko mainski prirunik,Zavod za izdavanje
udbenika, Beograd, 1987.
S.Miladinovi, Doktorska disertacija, Univerzitet u Niu,
Ni,2010.
N.Vujanovi, Teorija pouzdanosti tehnikih sistema, Vojnoizdavaki
i novinski centar, Beograd,1990
S.Miladinovi, Mainski elementi, Visoka tehnika kola strukovnih
studija Uroevac sa privremenim seditem u Zveanu, Zvean 2011.
S.Miladinovi, D.Mili,Proraun elemenata mainskog sistema
korienjem statistikih metoda raspodele. Statistke metode u
upravljanju totalnim kvalitetom-zbornik radova, Ni, 1995.,
s.105-110
10
1
[
]
3
[
]
4
[
]
5
[
]
6
[
]
7
1
n
t
N
)
(
n
t
N
n
)
(
-
n
t
n
)
(
=
x
t
dt
t
f
).
(
x
t
dt
t
f
).
(
x
=
t
dt
t
f
).
(
dt
t
dF
)
(
t
D
t
D
[
]
)
(
1
t
t
R
D
+
-
[
]
)
(
1
t
R
-
)
t
D
)
(
.
)
(
)
(
)
(
t
R
t
t
t
R
t
R
t
D
D
+
-
=
l
n
t
n
t
n
t
t
n
n
t
n
t
)
(
.
)
(
)
(
)
(
D
D
+
-
=
l
)
(
.
)
(
)
(
t
n
t
t
t
n
t
n
D
D
+
-
)
(
.
)
(
t
n
t
t
N
D
D
)
t
D
t
D
)
t
D
)
t
D
t
D
D
t
)
(
t
l
0
lim
D
t
)
(
.
)
(
)
(
t
R
t
t
t
R
t
R
D
D
+
-
dt
t
R
t
dR
)
(
)
(
.
1
)
(
t
l
1
)
(
t
l
0
)
(
.
dt
t
f
t
0
)
(
dt
t
R
)
(
i
i
i
t
f
t
50
=
5
,
0
)
(
t
dt
t
f
[
]
1
[
]
2
