Study of load spectrum compilation method for the pantograph upper frame based on multi-body dynamics
Engineering Failure Analysis(2022)
摘要
•Established PCS model to obtain random loads on the pantograph upper frame.•Polynomial fitting to get hazard point stress of concern spectrum and verification.•Upper frame full life load spectra were prepared by KDE extrapolation.•The practicality of accelerated fatigue load spectrum verified in test bench.
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关键词
Pantograph,Dynamics,Load spectrum,Extrapolation,Fatigue test
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