Analysis and Life Span Prediction of Drum Brake Multi-physics Two-way Coupling

• 作 者: Chen Jing Cao Zhenglin Zhang Qun Chen Ying Han Yepeng Liu Yanhe
• 机 构: ChinaFAWGroupCorporationR&DCenter,StateKeyLaboratoryofComprehensiveTechnologyonAutomobileVibrationan
• 出 处: 第19届亚太汽车工程年会暨2017中国汽车工程学会年会
• 发表日期: 2017年10期
• 关键词: drum brake multi-physics two-way coupling manson-coffin thermal fatigue hot crac

　　Taking car drum brake as an object of study,we developed a type of multi-physics two-way coupling analysis method that was capable of controlling data exchange and mapping & interpolation function,and a simulation method on thermal fatigue life span analysis based on the classic Manson-Coffin theory.We applied this method to the bench test of drum brake hot crack,and then conduc-ted a comparison between the brake drum thermal fatigue life span generated in the simulated prediction after analysis and that generated from the bench test measurement.The comparison result shows: the brake life span prediction overall accuracy is above 90%,the de-veloped brake multi-physics two-way coupling analysis & life span prediction method is more advanced with high precise analysis,and has the value of engineering application and promotion in improving the capability of brake design.