Simulation Calculation and Experimental Verification Method of Piston Ring Circumferential Tension

被引：0
|
作者：
Jiao B. [1 ]
Zhang T. [2 ]
Ma X. [1 ]
Lyu X. [3 ]
Liu Z. [1 ]
机构：
[1] College of Power and Energy Engineering, Harbin Engineering University, Harbin
[2] 92942 Army, Beijing
[3] College of Shipping and Naval Architecture, Chongqing Jiaotong University, Chongqing
来源：
Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) | 2023年 / 41卷 / 05期
关键词：
finite element method; force equivalent model; piston ring; tension distribution; test rig;
D O I：
10.16236/j.cnki.nrjxb.202305056
中图分类号：
学科分类号：
摘要：
A piston ring free profile model was established based on the Maxwell-Mohr theorem. The free profile and cross-sectional dimensions of the piston ring were then used as inputs to establish a three-dimensional finite element contact model of the piston ring and cylinder liner to obtain the piston ring/cylinder liner contact force. A test rig for measuring the circumferential tension of the piston ring was designed and set-up. It was difficult to measure the contact pressure(distributed pressure)of the entire contact surface of the piston ring/cylinder liner by experiment，but only the reaction force(concentrated force)at a limited number of points can be measured. An equivalent principle model of distributed pressure and concentrated force was proposed to realize the verification of the piston ring/cylinder liner contact force model. The results show that there is a maximum error of 8.75% between the test results and the simulation results at 345°，and a good consistency between the other positions. The overall error is within the acceptable range. The model provides a theoretical basis for the piston ring design and can be used as an input for piston ring friction and lubrication analysis to improve calculation accuracy. © 2023 Chinese Society for Internal Combustion Engines. All rights reserved.
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页码：473 / 479
页数：6
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