摘要
在分析利用电涡流传感器检测不对中原理的基础上,提出了两种不对中定量化检测新方法。傅里叶级数法通过对幅值和相位的计算,得到平行不对中量和角度不对中量。两点测量法可仅利用在两个角度上的测量结果实现转轴间不对中量的快速检测。介绍了两种不对中定量化检测方法的原理和算法。通过对仿真数据和实验测试数据的分析,验证了提出的两种检测方法的性能和效果。实验分析结果表明,该检测方法可以实现旋转机械转轴不对中故障的定量化检测,在不对中量的快速检测中具有实际意义。
Two new simplified quantitative detection methods for misalignment faults are proposed based on the eddy current sensor.A simplified series method based on Fourier series to estimate amplitude and phase is introduced to obtain the amounts of parallel and angular misalignment.Another method based on two points measurement is also proposed to achieve more rapid estimation of misalignment.The principles of measurement and calculation of the two methods are explained,and their performance and effectiveness are verified by simulation and experiments.Experimental results show that the simplified series method can quantitatively detect the misalignment faults of rotating machinery,and the two points measurement method has great practical significance in the rapid estimation of misalignment.
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2016年第1期80-85,199,共6页
Journal of Vibration,Measurement & Diagnosis
基金
国家重点基础研究发展计划("九七三"计划)资助项目(2009CB724405)
国家自然科学基金资助项目(51275379)
关键词
不对中故障
定量化检测
旋转机械
电涡流传感器
misalignment faults
quantitative detection
rotating machine
eddy current sensor
