刚性转子在无定心弹簧的挤压油膜阻尼器支承中的稳态不平衡响应

• 作 者: 陈松淇 王国源 贾振波 徐建康
• 机 构: 西北工业大学,西北工业大学,西北工业大学,西北工业大学 副教授,81年工学硕士,81年工学硕士西安工业学院,81届研究生
• 出 处: 西北工业大学学报
• 发表日期: 1985年01期
• 关键词: 挤压油膜阻尼器 不平衡响应 弹簧 稳态 刚性转子 进动 谐波平衡法 数值积分法 轴颈中心 稳态响应

本文考察刚性转子在无定心弹簧的挤压油膜阻尼器支承中的稳态不平衡响应。作为一次近似,假设轴颈中心的正协调进动轨道是任意的偏置椭圆。进动轨道用谐波平衡法确定,轨道运动的稳定性用平均法研究。进动轨道还用 Runge-Kutta 数值积分法校核,结果符合良好。但分析法较节省计算机时。本文还算得了双稳态响应,从理论上解释了实验室所发生的现象,并为合理选用系统参数设计有效的挤压油膜阻尼器提供参考。

This paper investigates the steady-state unbalance response of a rigid rotor in a squeeze film damper support without a centering spring. As a first approximation, assume that the positive centering journals of the journal center are arbitrary offset ellipses. The precession orbit is determined by the harmonic balance method, and the stability of orbital motion is studied by the averaging method. The precession orbit was also checked by the Runge-Kutta numerical integration method and the results were in good agreement. But the analysis method is more economical when the computer. In this paper, the bistable response is obtained, which theoretically explains the phenomena in the laboratory and provides a reference for the design of an effective squeeze film damper based on the system parameters.