| COMPLICATION ON THE SPECTRUM OF AUTOMOTIVE SWING ARM DUE TO LOW-AMPLITUDE LOADS |
| Y. F. SHEN1, S. L. ZHENG1, Z. R. WANG1, G. Q. LIANG1, Z. G. MA2 |
1University of Shanghai for Science and Technology
2Shanghai Volkswagen Automotive Co., Ltd. |
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| ABSTRACT |
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A program load spectrum compiling method for automotive components was introduced with swing arm as example. Based on pseudo-damage and statistical analyses, combined with structural coaxing property, a spectrum compiling method considering the coaxing effects is put forward. The new method overcomes the deficiency of the traditional methods, in which only the damage effect of low amplitude loads is considered. Meanwhile, referred to the equivalent damage rulebetween damage loads, the equivalent coaxing rule between coaxing loads is explored. By transferring the coaxing loads to the most effective level, the bench tests show that the total cycling blocks decline sharply under self-made specification. The influence of strengthening loads is proved to be taken into account by deleting the useless loads during the spectrum compiling process. Moreover, the real service condition of automotive components by simulation can be faster and more real, and it is significant to predicate the failure mode of durability tests and to estimate service life of automotive components more accurately. |
| Key Words:
Automotive component, Program load spectrum, Coaxing, Durability test, Swing arm |
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