Random Dynamic Fatigue Analysis of Body Structures of Coach


Article Preview

In this paper, an efficacious and accurate method for analyzing random vibration and fatigue lifespan of coaches with high degrees of freedom is developed. Based on the design requirements for structure strength and fatigue lifespan of a coach, the finite element model of its body structure was used to investigate the dynamic behavior of the coach running on a randomly uneven road. The vibration characteristic was derived using the pseudo excitation method (PEM). The fatigue lifespan is discussed by means of the Miner rule, and the fatigue resistance is also studied. The reliability of the proposed method is numerically verified.



Edited by:

Shucai Li






Z. Qin and W. T. Xu, "Random Dynamic Fatigue Analysis of Body Structures of Coach", Applied Mechanics and Materials, Vols. 97-98, pp. 765-770, 2011

Online since:

September 2011





[1] B. Mohamed, J. M. Richard, An optimization method designed to improve 3D vehicle comfort and road holding capability through the use of active and semi-active suspensions. European. Journal of Mechanics A-Solids. 20 (2001) 509-520.

DOI: 10.1016/s0997-7538(01)01138-x

[2] H. Z. Ernesto, E. H. Vanmarcke, Seismic random vibration analysis of multi-support structural systems. ASCE, Journal of Engineering Mechanics. 120 (1994) 1107-1128.

DOI: 10.1061/(asce)0733-9399(1994)120:5(1107)

[3] Jiahao Lin, Xinglin Guo, Yahui Zhang, W. Howson, P, F.W. Williams. Computer simulation of structural random loading identification. Computer and Structures. 79(4) (2001) 375-387.

DOI: 10.1016/s0045-7949(00)00154-1

[4] Jiahao Lin, Yan Zhao, Yahui Zhang. Accurate and highly efficient algorithms for structural stationary or non-stationary random response. Computer Methods in Applied Mechanics and Engineering. 19(1) (2001), 103-111.

DOI: 10.1016/s0045-7825(01)00247-x

In order to see related information, you need to Login.