大功率柴油机运转工况下活塞组摩擦力测量研究  

Measurement Method of Piston Assembly Friction Force During Operation of High-Power Diesel Engines

作　　者：孟祥慧[1] 张勇 王令金 许晓颖 李瑞 吕步高 尹家宝 MENG Xianghui;ZHANG Yong;WANG Lingjin;XU Xiaoying;LI Rui;LÜBugao;YIN Jiabao(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Weichai Power Co.,Ltd.,Weifang 261000,China;Yantai Research Institute,Harbin Engineering University,Yantai 264000,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]潍柴动力股份有限公司,潍坊261000 [3]哈尔滨工程大学烟台研究院,烟台264000

出　　处：《内燃机工程》2023年第4期85-91,共7页Chinese Internal Combustion Engine Engineering

基　　金：国家自然科学基金重点项目(52130502)。

摘　　要：开发了一种基于连杆力无线测量的活塞组摩擦力在线测量方法,给出了摩擦力测量原理和连杆力无线测量方案。在对测量系统进行标定和验证基础上,实现了某大功率柴油机运转工况下活塞组摩擦力的在线测量。结果表明,所开发的测量方法具有较高的精度,可以捕捉发动机工作过程中活塞组摩擦力的变化规律,并具有很好的一致性,能够为发动机活塞组的低摩擦设计提供试验支持。An online measurement method of piston assembly friction force based on wireless measurement of connecting rod force was developed.The principle of friction measurement and the wireless measurement scheme of connecting rod force were presented.On the basis of calibration and verification of the measurement system,the online measurement of piston assembly friction force under operating conditions of a high-power diesel engine was conducted.The results show that the developed measurement method has high accuracy and can capture the change of piston assembly friction during engine operation with a good consistency,which can provide experimental support for the design of piston assemblies with low friction in engines.

关 键 词：大功率柴油机 活塞组–缸套 摩擦力 连杆力 测量 无线测量 运转工况 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]