Research on Simulation Experiment Method of Piston Ring and Cylinder Liner Friction and Wearing
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摘要: 提出了一种评价活塞环-缸套摩擦磨损性能的快速模拟实验方法,研制了往复式模拟摩擦磨损实验机,载荷、速度等实验参数和摩擦力、总磨程等实验结果的测试装置及其计算机数据采集处理系统.实验直接采用被测的活塞环和缸套作为试样,这不仅使模拟实验更接近实际情况而且大大减少了试样制备的工作量.以表面涂覆Ti-TiN耐磨涂层的492发动机活塞环及与其配副的缸套为试样进行了重复性实验,结果表明:用质量法测量的磨损量最大相对误差<8.5%;摩擦力的最大相对误差<2%.Abstract: A fast simulation experiment method is proposed that can be used to evaluate the performance of piston ring and cylinder liner friction and wearing. A reciprocating test rig for simulating friction and wearing of piston ring and cylinder, a test equipment which measures experimental parameters such as press and rate and the experimental results such as force of frictional force and friction stroke lengths a computer data acquisition and analysis system are developed. The practical piston ring and liner were adopted as the experimental specimens to ensure that the simulation experiment is not only closer to actual conditions but also largely reduce the time for specimen preparation. The piston rings from 492 type engine with wear-resistant cost of Ti-TiN and their matched cylinder liners are used as the specimens for repetition experiment. The results indicate that the max relative error of wear quantity is less than 8.5% and the max relative error of frictional force is less than 2% when weight method is used for test.
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Keywords:
- piston ring /
- cylinder liner /
- friction and wear /
- test technology
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