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Analysis of Chassis Parts Using CATIA FEA
Lee Dong Jae
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
ITEM
• Transmission Mounting Bracket• Lower Reaction Rod• Lower Control Arm - One Piece Type (�) - One Piece Type (�) - Two Piece Type• Rear Suspension - Torsion Beam Axle
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
TRANSMISSION MTG. BRACKET
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
• Object
- Reduction of Weight
- Good Stress Condition
• Material : ALDC12
- E = 70000 Mpa
- Poisson Ratio = 0.346
- Density = 7850 kg/�
• Mesh : TE4
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
TRANSMISSION MTG. BRACKET ( OLD )
8�
• Weight : 1144 g
• Max Stress : 300 Mpa
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
TRANSMISSION MTG.BRACKET ( NEW ���� )
6�
• Weight : 957 g
• Max Stress : 340 Mpa
TRANSMISSION MTG. BRACKET( NEW ���� )
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
6�
5�
• Weight : 993 g
• Max Stress : 200 Mpa
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
LOWER REACTION ROD
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
LOWER CONTROL ARM (ONE PIECE TYPE)
• Object
- Reduction of Weight
- Good Stress Condition
• Material : Steel
- E = 207×10E3 Mpa
- Poisson Ratio = 0.300
- Density = 7850 kg/�
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
LOWER CONTROL ARM (MESH MODEL)
• Mesh
- Arm Body : QD4S, TR3S
- Bush : RIG_BEAM
Spring
- Weld : RIG_BEAM
• 6 Load Case
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
• Object
- Reduction of Weight
- Good Stress Condition
• Material : Steel
- E = 207×10E3 Mpa
- Poisson Ratio = 0.300
- Density = 7850 kg/�
LOWER CONTROL ARM (ONE PIECE TYPE)
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
LOWER CONTROL ARM (MESH MODEL)
• Mesh
- Arm Body : QD4S, TR3S
- Bush : RIG_BEAM
Spring
- Weld : RIG_BEAM
• 6 Load Case
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
LOWER CONTROL ARM (TWO PIECE TYPE)
• Object
- Reduction of Weight
- Good Stress Condition
• Material : Steel
- E = 207×10E3 Mpa
- Poisson Ratio = 0.300
- Density = 7850 kg/�
LOWER CONTROL ARM (MESH MODEL)
• Mesh
- Arm Body : QD4S, TR3S
- Bush : RIG_BEAM
Spring
- CO2 Weld : RIG_BEAM
- Spot Weld : CLAMP_2
• 6 Load Case
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
LOWER CONTROL ARM (Von Mises Stress)Load Case• 1g Forward Braking• 0.3g Reverse Braking• 0.8g Cornering
• Overturning• 2.5g Bump & 1g Forward Braking• 2.5g Bump & 0.8g Cornering
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
LOWER CONTROL ARM (Von Mises Stress)Load Case• 1g Forward Braking• 0.3g Reverse Braking• 0.8g Cornering
• Overturning• 2.5g Bump & 1g Forward Braking• 2.5g Bump & 0.8g Cornering
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
REAR SUSPENSION - TORSION BEAM AXLE
• Object
- Reduction of Weight
- Good Stress Condition
• Material : Steel
- E = 207×10E3 Mpa
- Poisson Ratio = 0.300
- Density = 7850 kg/�
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
REAR SUSPENSION- TORSION BEAM AXLE (MESH MODEL)
• Mesh
- Axle Body : HE8, WE6
QD4S, TR3S
- Bush : RIG_BEAM, SPRING
- CO2 Weld : RIG_BEAM
- Damper, Spring : BAR
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
REAR SUSPENSION - TORSION BEAM AXLE
Torsion Test
LOWER CONTROL ARM (MESH MODEL)
DAEWOO MOTOR Co. LTDBUPYONG TECHNICAL CENTER
CHASSIS DESIGN DEPT.
�� ��
• CATIA FEA ���(���) ��
• � � DATABASE �
• ���� �� � DATABASE ��
