摘要
针对带式输送机运行状态信号微弱而不易提取故障特征的问题,提出了一种基于差分振子的带式输送机故障诊断方法。该方法采用Hilbert对信号进行解调,揭示隐含在信号中的设备故障特征,然后利用差分振子相图的变化实现对故障特征的提取。若信号中含有故障特征,则差分振子相图收敛于极环状态,反之则收敛于极点状态。应用结果验证了该方法的有效性。
In view of problem that running state signal of belt conveyor is too weak to extract fault feature, a fault diagnosis method of belt conveyor based on differential resonator was proposed. The method uses Hilbert to demodulate the signal, so as to reveal equipment fault feature of the signal, then uses phase diagram of differential resonator to extract the fault feature. If the signal contains the fault feature, the phase diagram of differential resonator converges to a ring. On the contrary, the phase diagram converges to a pole. The application result verifies effectiveness of the method.
出处
《工矿自动化》
北大核心
2013年第10期24-27,共4页
Journal Of Mine Automation
基金
天地科技技术创新基金项目(KJ-2012-TDZC-01)
天地(常州)自动化股份有限公司科研合作项目(2012M156)
