空气悬架固有频率试验研究及理论分析  

Theoretical Analysis and Test Research of Eigen-frequency of Air Suspension

作　　者：黄俊明[1,2] 周孔亢[1] 徐兴[3] 朱晶晶[1] 

机构地区：[1]江苏大学汽车与交通工程学院,镇江212013 [2]广西大学机械工程学院,南宁530004 [3]江苏大学电气信息工程学院,镇江212013

出　　处：《机械工程学报》2011年第14期114-120,共7页Journal of Mechanical Engineering

基　　金：浙江省重大科技专项重点(2006C11089);江苏省科技支撑(BE2008114);江苏省六大人才高峰资助项目

摘　　要：汽车空气悬架的固有频率是表征车辆平顺性和道路友好性的一个重要指标,为能正确获取悬架的固有频率,在总结国内外相关标准的基础上从激励方式和数据处理方法两方面分析和比较目前国内沿用的GB 4783—1984(汽车悬挂系统的固有频率和阻尼比测定方法)悬架固有频率试验标准和欧洲委员会的96/53/EC、澳大利亚的VSB11标准,并对电子控制空气悬架的大客车进行整车阶跃试验。针对试验数据处理中发现的俯仰角振动问题通过半车模型仿真来进行理论分析以及车身俯仰角振动固有频率试验,探讨按照国家标准和国外标准进行数据处理分析时存在的局限性,通过辅助试验获得正确的悬架固有频率。为电子控制空气悬架大客车类的悬架固有频率试验方法以及试验数据的处理分析方法提出补充的建议和辅助试验手段。Eigen-frequency of air spring suspension is an important index of ride comfort and road friendliness,on the basis of the corresponding standards at home and abroad,a comparison between the domestic standard of GB 4783-1984（The measurement of eigen-frequency and damping ratio of vehicle suspension system） and the aboard standards of the Council of the European Union Council Directive 96/53/EC and vehicle standards bulletin VSB 11 of Australia the standards in use is performed in two ways of actuating method and data processing method,and a series of full scale vehicle step input tests of an electrical controlled air spring heavy vehicle are carried out.The limitations existing in data processing according to the domestic and foreign standards are discussed,and by the theoretical analysis of half vehicle model simulation and body pitch tests,a correct eigen-frequency of suspension is obtained through the aided tests of body pitch.Finally,supplement suggestions and the aided tests to the method of electrical controlled air spring heavy vehicle suspension＇s eigen-frequency test and the way to analyze the test data are presented.

关 键 词：空气悬架 固有频率 试验 标准 俯仰 

分 类 号：U463[机械工程—车辆工程]