摘要
以Jeffcott转子系统为对象,研究转盘在转轴上不同偏置安装位置所引起的陀螺效应,以及对转子系统固有特性和弯曲振动模式的影响规律.基于所建立的集中质量模型,数值计算和比较的结果表明,不同的转盘安装偏置量会对转子系统临界转速和不平衡响应产生明显影响.偏置程度越大,陀螺效应对临界转速及不平衡响应的影响越大,而在转子系统完全对称的情况下,陀螺效应则可以忽略.
Based on the Jeffcott rotor system, the gyroscopic effects caused by different disc offset installation positions in the shaft were studied, and the law of gyroscopic effect on the inherent characteristics of the rotor system and the bending vibration modes was investigated. The results from numerical calculation and comparison show that there appear obvious effects of different disc offset installation positions on the rotor system critical speed and the unbalanced response. The greater the degree of disc offset, the greater the gyroscopic effect on the critical speed and the unbalanced response. However, the gyroscopic effect can be ignored when the rotor system is completely symmetrical.
出处
《动力学与控制学报》
2011年第3期238-242,共5页
Journal of Dynamics and Control
基金
国家自然科学基金资助项目(50775028)~~
关键词
转子系统
转盘偏置
陀螺效应
rotor system
disc offset
gyroscopic effect
