An Optimized Target Spectrum Selection Method for the Automotive Durability Test  
Author Jiawei Yu


Co-Author(s) Songlin Zheng; Jinzhi Feng; Lihui Zhao


Abstract The generation of valid and effective test spectra from proving ground recorded load spectra is critical for automotive durability testing. Traditional methods mostly based on spectrum damage were used to select load spectra. Statistical characteristics of load spectra were taken into account, and a new selection method based on a concatenation of a multi-section minimum standard deviation spectrum (CMSD) was proposed. The CMSD was created and based on proving ground recorded load spectra. Fatigue damage analyses showed that the CMSD approximated the mean damage spectra. A vehicle durability test was finally conducted by applying the CMSD as a target spectrum. The test results showed good agreement with the proving ground durability test. Therefore, the validity of this method was verified.


Keywords automotive durability test, spectrum selection method, concatenation of multi-sections minimum standard deviation spectrum (CMSD)
    Article #:  21232
Proceedings of the 21st ISSAT International Conference on Reliability and Quality in Design
August 6-8, 2015 - Philadelphia, Pennsylvia, U.S.A.