圆柱面配合激起的转子失稳振动研究  

Instability Caused by Cylindrical Surface Fit in Rotor System

作　　者：谭大力[1] 陈进[2] 廖明夫[3] 王四季[3] 

机构地区：[1]海军装备研究院,北京100073 [2]中国船舶重工集团公司第701所,武汉430064 [3]西北工业大学动力与能源学院,西安710072

出　　处：《机械科学与技术》2014年第12期1786-1790,共5页Mechanical Science and Technology for Aerospace Engineering

摘　　要：根据圆柱面配合引起的转子自激失稳振动的特性,建立了圆柱面间隙配合失稳模型。用Riccati传递矩阵法计算双转子实验器低压转子系统的失稳转速,分析圆柱面配合参数和轴承刚度对转子系统稳定性的影响。实验验证了圆柱面配合处锁紧螺母预紧力对转子门槛转速的影响,通过加大锁紧螺母预紧力能够有效提高转子的失稳转速。A model of instability of rotor system caused by cylindrical surface fit was established,and Riccati transfer matrix method was used to get the threshold speed of double-rotor test rig. The relationship between stability of the rotor system and parameters of cylindrical surface was analyzed. Experimentation proved the influence of locknut preload on threshold speed. The results show that increasing preload can effectively improve the threshold speed.

关 键 词：转子系统 圆柱面配合 配合参数 失稳转速 

分 类 号：V231.9[航空宇航科学与技术—航空宇航推进理论与工程]