上海交通大学学报

上海交通大学学报 >

2019 , Vol. 53 >Issue 6: 660 - 664

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2019.06.004

学报（中文）

基于Hertz接触理论的叶片-机匣碰摩模型

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  • 1. 上海交通大学 机械与动力工程学院， 上海 200240; 2. 中国航空发动机集团 商用航空发动机有限责任公司， 上海 200241
赵洋（1992-），男，硕士生，主要研究方向为多学科优化设计.

网络出版日期: 2019-07-23

基金资助

国家重点研发计划（SQ2018YFB110268），上海市科委科研计划（17DZ1120000）资助项目

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A New Blade-Casing Rubbing Model Based on Hertz Contact Theory

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  • 1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China； 2. AECC Commercial Aircraft Engine Co., Ltd., Shanghai 200241, China

Online published: 2019-07-23

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摘要

针对航空发动机的叶片-机匣碰摩现象，考虑旋转效应以及摩擦热效应，建立Hertz碰摩模型，分析碰摩径向形变量的影响因素.通过对比现有法向碰摩力模型的实验结果，验证所建立模型的准确性，并分析了旋转速度、机匣刚度、摩擦因数等参数对碰摩径向形变量的影响.通过叶片热固耦合仿真分析发现，摩擦热效应对部件的径向变形和应力分布具有一定的影响.

关键词： 径向形变量； 法向碰摩力； 旋转效应； 摩擦热效应； 碰摩模型

本文引用格式

赵洋，华一雄，张执南，柴象海 . 基于Hertz接触理论的叶片-机匣碰摩模型[J]. 上海交通大学学报, 2019 , 53(6) : 660 -664 . DOI: 10.16183/j.cnki.jsjtu.2019.06.004

Abstract

Aiming at the phenomenon of aircraft engine blade-casing rubbing, this paper established a blade-casing Hertz-rubbing model considering the rotation effect and friction thermal effect. The influence factors of rubbing radial deformation were analyzed. The accuracy of the model was verified by comparing with the experiment results of existing normal rubbing force model. Moreover, the influence of rotation speed, stiffness coefficient, friction coefficient on the rubbing radial deformation were also analyzed. The results of the thermo-solid coupling simulation analysis on blade showed that the friction thermal effect had a certain influence on the overall radial deformation.

Key words： radial deformation； normal rub-impact force； rotation effect； friction thermal effect； rubbing model

参考文献

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