车辆底盘试验载荷谱编制技术研究与应用  

Research and application of load spectrum compilation technology for vehicle chassis tests

作　　者：金红杰 臧利国 李瑶薇 JIN Hongjie;ZANG Liguo;LI Yaowei(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;School of Automotive and Rail Transit,Nanjing Institute of Technology,Nanjing 211167,China;State Key Laboratory of Automotive Simulation and Control,Changchun 130015,China)

机构地区：[1]南京理工大学机械工程学院,南京210094 [2]南京工程学院汽车与轨道交通学院,南京211167 [3]汽车仿真与控制国家重点实验室,长春130015

出　　处：《重庆理工大学学报（自然科学）》2022年第12期58-70,共13页Journal of Chongqing University of Technology：Natural Science

基　　金：汽车仿真与控制国家重点实验室开放基金项目(20210205);国家自然科学基金项目(51605215)。

摘　　要：针对车辆底盘试验载荷谱编制问题,为将大量无序的数据转化编制成直接应用于工程的分析数据,采集某型车辆可靠性试验载荷谱,研究载荷谱编制方法,开发载荷谱数据库。文章构建了集力、加速度、位移等多种参数的载荷谱采集系统,利用实测数据形成完整的载荷谱数据预处理、编辑、编制流程,为载荷谱编辑提供有效、精简的数据。采用统计计数、工况合成以及外推等编制方法,实现载荷谱编制技术软化。通过以上技术所得出的应力幅值、循环次数、损伤等结果,可直接应用于工程设计和分析,此研究成果可为载荷谱工程应用提供技术支撑。Aiming at the problem of load spectrum compilation of vehicle chassis tests,in order to convert a large number of disordered data into analytical data directly applied to engineering,this paper collects the load spectrum of a certain type of vehicle for reliability test to study the method of load spectrum compilation,and develops the load spectrum database.Firstly,a load spectrum acquisition system with various parameters such as force,acceleration and displacement is constructed.Then,the measured data are used to form a complete load spectrum data preprocessing,editing and compilation process,which provides effective and streamlined data for load spectrum editing.Finally,the load spectrum compilation technology is softened by using statistical counting,working condition synthesis and extrapolation methods.The results of stress amplitude,cycle number and damage obtained through the above technology can be directly applied to engineering design and analysis.This study provides technical support for the engineering application of load spectrum.

关 键 词：试验道路 载荷谱 数据预处理 数据编辑 数据编制 

分 类 号：U463.1[机械工程—车辆工程]