Modeling Analysis of Key Friction Pairs in Low-speed Marine Diesel Engines and Verification of Friction Force Based on Wireless Measurement

被引：0
|
作者：
Li R. [1 ]
Meng X. [1 ]
Xie Y. [1 ]
机构：
[1] School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai
来源：
Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2022年 / 33卷 / 04期
关键词：
Energy saving and emission reduction; Low-speed marine diesel engine; Multidisciplinary coupling modeling; Tribo-dynamics; Wireless measurement of friction force;
D O I：
10.3969/j.issn.1004-132X.2022.04.001
中图分类号：
学科分类号：
摘要：
Tribological properties of low-speed marine diesel engines possessed an important impact on the economy, safety, and stability of ship operations. However, there were few theoretical and experimental studies on the tribology of the engines. The modeling of key friction pairs were realized, and the friction was verified by wireless measurement herein. Firstly, combined with multi-body dynamics and mixed lubrication theory, the tribo-dynamics model of key friction pairs was established. Then, a wireless measurement method of friction force was proposed based on the idea of indirect measurement, and a measurement system was developed to realize the on-line measurement of friction forces under fired conditions. The results show that the simulation results of the friction are consistent with the experimental ones, and the maximum friction errors between the simulation and the experiments are less than 5%. The simulation load of the crosshead bearing is also in good agreement with the experimental load. In addition, for the system oil consumption of the stuffing box, the errors between simulation results and test ones are less than 3%. The results show that the modeling and measurement methods are feasible, and may provide support for tribological design, energy conservation and emission reduction of low-speed marine diesel engines. © 2022, China Mechanical Engineering Magazine Office. All right reserved.
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页码：380 / 387and396
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