A Method of Improving Dynamic Stress Computation for Fatigue Life Prediction of Vehicle Structure 971534
In order to accurately predict fatigue life of vehicle structures or components, it is necessary to predict dynamic stresses efficiently as well as accurately. This paper demonstrates how to improve the accuracy of dynamic stresses that are computed from the conventional flexible multibody dynamic system simulation where modal stress superposition method is used. In the proposed method, the mode-acceleration concept is utilized in each flexible component in the postprocessing stage of dynamic simulation. Numerical examples of a vehicle chassis structure show the effectiveness of the proposed method.
Citation: Ryu, J., Kim, H., and Wang, S., "A Method of Improving Dynamic Stress Computation for Fatigue Life Prediction of Vehicle Structure," SAE Technical Paper 971534, 1997, https://doi.org/10.4271/971534. Download Citation
Author(s):
Jeha Ryu, Ho-Soo Kim, Semyung Wang
Affiliated:
Kwangju Institute of Science and Technology
Pages: 8
Event:
X International Conference on Vehicle Structural Mechanics and CAE
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Proceedings of the Tenth International Conference on Vehicle Structural Mechanics and Cae-P-308, SAE 1997 Transactions - Journal of Passenger Cars-V106-6
Related Topics:
Body structures
Fatigue
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