<DIV align="center">含转轴裂纹的离心叶轮转子非线性动力学特性研究

含转轴裂纹的离心叶轮转子非线性动力学特性研究

李同杰;王娟;陈云香;孙启国

振动与冲击 ›› 2010, Vol. 29 ›› Issue (11) : 213-216.

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振动与冲击 ›› 2010, Vol. 29 ›› Issue (11) : 213-216.

论文

含转轴裂纹的离心叶轮转子非线性动力学特性研究

李同杰1，王娟1，陈云香2，孙启国3

作者信息 +

Study on Bifurcation Characteristic of a Cracked Centrifugal Impeller-Rotor with Lateral Fluid Force

Li Tong-jie1，Wang Juan1, Chen Yun-xiang 2 ，Sun Qig-uo3

Author information +

文章历史 +

摘要

建立了带有裂纹故障的的不平衡离心叶轮转子在非线性横向流体激振力和非线性轴承油膜力作用下的横向振动力学模型，并推导了系统的无量纲运动微分方程。运用数值积分法对系统的分岔特性进行了仿真。最后分析了横向流体激振力以及裂纹深度对离心叶轮系统动力学性能的影响。

Abstract

The dynamic model of a cracked centrifugal Impeller-rotor with both nonlinear lateral fluid force and nonlinear oil-film force is built and dimensionless equations of the system are derived. The system’s bifurcation characteristics are studied using the numerical integral method. The influence of the nonlinear lateral fluid force and the depth of the crack on the system’s dynamic characteristics are analyzed in detail in the last part of the paper.

导出引用

李同杰;王娟;陈云香;孙启国 .

含转轴裂纹的离心叶轮转子非线性动力学特性研究[J]. 振动与冲击, 2010, 29(11): 213-216

Li Tong-jie;Wang Juan;Chen Yun-xiang ;Sun Qig-uo. Study on Bifurcation Characteristic of a Cracked Centrifugal Impeller-Rotor with Lateral Fluid Force[J]. Journal of Vibration and Shock, 2010, 29(11): 213-216