Abstract
High speed train has a complex dynamic load structure. A structural load spectrum is the foundation to establish reliability test evaluation standard and design criteria. A bogie frame is the load transmission structure between wheel sets and car body. The damage consistency criterion necessary for establishing load spectrum is proposed. An establishment method for load spectrum for complex structures is provided. Damage consistency calibration of load spectra is also performed. In addition, the load spectra of bogie frame for 350 km/h high-speed-electric multiple unit (EMU) which has the highest actual operation speed currently are established under various operation conditions on Beijing-Tianjin Dedicated Passenger Line, based on the test data of bogie frame loads and stresses from key positions of fatigue of frame.
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