减振器异响及阻尼力波动试验  

Experimental Research on Abnormal Noise and Damping Force of Fluctuations for Hydraulic Absorber

作　　者：吴英龙[1,2] 赵华[1] 张国刚 

机构地区：[1]西南交通大学力学与工程学院,成都610031 [2]浙江富春江水电设备股份有限公司,杭州310030 [3]四川宁江精密机械有限公司基础研究所,成都610101

出　　处：《机械设计与研究》2013年第6期90-94,共5页Machine Design And Research

基　　金：国家自然科学基金资助项目(11172249)

摘　　要：基于减振器异响件的解析试验和示功试验,对造成减振器异响的质量问题进行了统计分析,研究了质量问题、设计问题与阻尼力波动的对应关系。解析试验指出,漏油、气压抗力降低、阻尼力偏离设计值和松退力矩不合格等质量问题大量存在于异响件中。通过示功图和F-V曲线图分析指出,摩擦力换向、螺母松动、换向空程、阀片与阀门盖的碰撞、开阀和阀片翘曲都会产生不同特征的阻尼力波动。进一步,通过解析试验、改进设计试验、仿真试验等进行了验证。Based on both the analytical and the dynamometer tests of damper abnormal sound pieces, a statistical analysis on the quality problems to cause shock absorber abnormal sound was conducted, and the correspondence among quality problems, design issues and the damping force fluctuations was studied. The analytical tests indicated that the oil leaking, the reduced resistance of air pressure, the damping force deviating from design value and loose forward torque commonly existed in parts of abnormal sound. Indicator diagram and F-V graph analysis pointed out that the friction reversing, nut loosening, idle stroke, collision of valve leaf and cap and valve warping all had different characteris- tics of the damping force fluctuation. Further it was verified by parsing the analytical test, improving the experimental design and simulation.

关 键 词：减振器 异响 振动 

分 类 号：U464.33[机械工程—车辆工程] O322[交通运输工程—载运工具运用工程]