Abstract—The vibration spectra of the vehicle fuel cell stack under 8 kinds of strengthened roads in the test site are collected. And the corresponding fatigue damage spectra (FDS) of each road surface are calculated respectively. Then the total fatigue damage spectra are obtained by accumulating the FDS under all roads according to miner damage criterion. According to the durability target of vehicle fuel cell stack, based on the principle of consistent fatigue damage spectrum, this paper puts forward the method of formulating PSD, and then carries out bench vibration durability test, which can effectively strengthen the 108 h road vibration test. At the same time, in order to shorten the duration of bench test and achieve the purpose of accelerated test, the duration of each axle vibration test is compressed to 23h, and the limit response spectrum (ERs) generated by PSD of accelerated vibration test is less than the maximum possible response spectrum of 8 kinds of enhanced pavement impact response spectrum (SRS), so as to ensure that the accelerated vibration test of fuel cell stack will not produce unrealistic high load. 

Index Terms—Fuel cell stack, Vibration spectrum, Fatigue damage spectrum, Shock response spectrum, Bench durability test

Cite: Zhen Wu, Shiyu Wu, Rongliang Liang, Ting Guo, and Fengling Gao, "Investigation on Vibration Durability Test Method of Fuel Cell Stack Based on Vehicle," International Journal of Electronics and Electrical Engineering, Vol. 10, No. 2, pp. 14-18, September 2022. doi: 10.18178/ijeee.10.1.14-18