基于随机共振的机械传动系统机电耦合振动检测方法

为提高机械传动系统机电耦合振动检测的准确性,设计基于随机共振的机械传动系统机电耦合振动检测方法。采用随机共振理论去除信号噪声,推导整个传动系统的运动学传动比;对耦合传动效率建模,求解主共振现象;计算外界激励频率,确定主共振解的幅频参数,并忽略各物理量的高次谐波,计算机械转速并确定混沌阈值;分析系统干扰情况,以此完成机械传动系统机电耦合振动检测。实验结果表明,所提出的振动检测方法具有较高的准确性。

Electromechanical Coupling Vibration Detection Method of Mechanical Transmission System Based on Stochastic Resonance

In order to improve the accuracy of electromechanical coupling vibration detection of mechanical transmission system , an electromechanical coupling vibration detection method of mechanical transmission system based on stochastic resonance is designed.Stochastic resonance theory was used to remove signal noise and deduce the kinematic transmission ratio of the whole transmission system.The coupling transmission efficiency was modeled to solve the principal resonance phenomenon.The amplitude frequency parameters of the main resonance solution are determined by calculating the external excitation frequency , and the high harmonics of each physical quantity are ignored.The mechanical speed is calculated and the chaos threshold is determined , and the interference of the system is analyzed to detect the electromechanical coupling vibration of the mechanical transmission system.The experimental results show that the proposed vibration detection method has high accuracy.