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.
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.
作者
赵洋
华一雄
张执南
柴象海
ZHAO Yang;HUA Yixiong;ZHANG Zhinan;CHAI Xianghai(School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;AECC Commercial Aircraft Engine Co., Ltd. ? Shanghai 200241, China)
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2019年第6期660-664,共5页
Journal of Shanghai Jiaotong University
基金
国家重点研发计划(SQ2018YFB110268)
上海市科委科研计划(17DZ1120000)资助项目
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
radial deformation
normal rub-impact force
rotation effect
friction thermal effect
rubbing model
