分数阶阻尼和整数阶阻尼裂纹转子系统振动特性对比研究

Comparasion of Vibration Characteristics of Cracked Rotor System with Fractional Order Damping and Cracked Rotor System with Integer Order Damping

摘要: 在非线性涡动的情况下,把分数阶微积分应用到转子的裂纹故障诊断中,并与传统整数阶阻尼裂纹转子系统的振动特性进行对比分析。仿真结果表明,通过调节分数阶阶次,分数阶阻尼裂纹转子系统能够得到更丰富的反映裂纹故障信息。因此,分数阶微积分能够更好地应用于裂纹转子系统的故障诊断。

Abstract: In the case of nonlinear eddy, the fractional calculus is applied to the crack fault diagnosis of rotor system, and then compared with the vibration characteristics of cracked rotor system with traditional integer order damping. The simulation results show that more abundant the information of crack fault in the fractional damping cracked rotor system can be obtained by adjusting the fractional order. Therefore, the fractional calculus can be better applied to the crack fault diagnosis of the rotor system.