【摘要】 基于转子安全运行要求 ,对裂纹扩展过程进行动力学仿真·用非线性开闭裂纹模型 ,研究裂纹扩展过程中挠性裂纹转子动特性及不平衡量e和裂纹角 β两参数在扩展中的影响·研究表明 ,系统响应具有多种非线性振动形式 ,有多种途径出入混沌状态·研究为在线监测、分析和诊断裂纹故障提供理论依据更多还原

【Abstract】 A dynamic simulation of crack propagation was made for safe moving of the rotor. By use of nonlinear breathing crack modal, the influence on the flexible rotor was studied under the certain system parameter of unbalance parameter e and crack angle β . The system has many different forms of nonlinear vibrations and many sorts of route to (or out of ) chaos. A method to monitor, analyze and diagnose the abnormal phenomena on line was presented.更多还原