摘要
由于汽车悬架振动试验台垂向主振动的有效性决定了试验台的激振效果,为此通过试验分析了垂向主振动的有效性。在试验台的垂向、横向和纵向3个方向布置振动加速度传感器,检测得到在匀速激振时的平台振动信号,并对测得的振动信号进行功率谱密度分析。结果表明,平台垂向振动具有良好的单频性,平台前、后梁的垂向振动具有良好的一致性,平台垂向振动较之横向振动和纵向振动具有主导性。
The effectiveneso of the vertical vibration of an automobile suspension vibration test rig determines the effectiveness of its excitation.For this reason,a test for the rig type ACXX-160 was carried out to evaluate its effectiveness.Four accelerometers were fixed to the platform of the rig for measuring its vibration signals in vertical,lateral and longitudinal directions.The analysis of measured signal into power spectral density function was carried out.On the analysis,it shows that the vibration of the platform is obviously dominated by its vertical vibration as compared to its lateral and longitudinal vibrations;the vertical vibration of the platform is completely dominated by a monofrequent component and the vertical vibration of the front beam of the rig is in consistent with that of its rear beam.The analysis leads to the conclusion that the rig type ACXX-160 is effective in its vertical vibration during its steady running.
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2010年第4期455-457,共3页
Journal of Vibration,Measurement & Diagnosis
基金
江苏省"六大人才高峰"资助项目(编号:07-D-014)
江苏省高校自然科学基础研究资助项目(编号:07KJD580084)
关键词
车辆工程
悬架
振动
试验台
功率谱密度
vehicle engineering suspension vibration test rig power spectral density
