胡田天，王铁，尤剑君，鹿星晨，刘星辰，李国兴.内燃机缸套-活塞间动态摩擦力与侧向力相干性的试验研究[J].内燃机工程,2019,40(4):19-25.
内燃机缸套-活塞间动态摩擦力与侧向力相干性的试验研究
Experimental Study on Correlation of Dynamic Friction and Lateral Force Between Cylinder Liner and Piston in Internal Combustion Engines
DOI：10.13949/j.cnki.nrjgc.2019.04.004
关键词:缸套-活塞组件  浮动缸套法  摩擦试验机  有限元仿真  倒拖试验
Key Words:cylinder liner-piston assembly  floating liner method  friction testing machine  finite element simulation  motoring test
基金项目:国家自然科学基金（51805353）
作者单位
胡田天，王铁，尤剑君，鹿星晨，刘星辰，李国兴 1.太原理工大学 车辆工程系，太原 030024； 2.全椒县全动机械有限公司，滁州 239500 
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摘要:为了测量缸套-活塞之间的摩擦力响应，采用浮动缸套法设计搭建了缸套-活塞摩擦力倒拖测量系统，通过台架试验获取了多种转速工况下缸套-活塞组件间的摩擦力和侧向力曲线，并用连续小波变换对实测数据进行了时频分析。结合缸套模态分析对实测信号频域信息进行理论解析，结果表明：缸套摩擦力波动特性与其结构固有模态有关。
Abstract:In order to measure the friction response between cylinder liner and piston, a cylinder liner-piston dragging system was designed and built for friction measurement using the floating cylinder liner method. The friction and lateral force between cylinder liner and piston at various operating speeds were measured through bench tests, and then a time-frequency analysis using the continuous wavelet transform was performed to the measured data. A theoretical study on the frequency domain information of the measured signals was conducted based on the modal analysis result of the cylinder liner. The results show that the oscillating characteristics of the cylinder liner friction are related to the natural mode of the cylinder liner.
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