CAJ | 학술논문

柴油机瞬时转速信号可有效用于机器故障诊断，但测量误差难以解决，轴心轨迹就是其中一个重要影响因素。首先分析了瞬时转速信号测量中轴心轨迹误差的来源和构成，表明轴心轨迹可对传感器信号产生复杂的调频和调幅影响，通过详细分析其对瞬时转速测量的影响途径，并得到了在这些干扰下磁电式传感器输出电压波形的理论函数表达式；然后通过仿真计算，证明了轴心轨迹对瞬时转速测量计算有明显影响，并提出了相应的解决方法。
시유궤순시전속신호가유효용우궤기고장진단，단측량오차난이해결，축심궤적취시기중일개중요영향인소。수선분석료순시전속신호측량중축심궤적오차적래원화구성，표명축심궤적가대전감기신호산생복잡적조빈화조폭영향，통과상세분석기대순시전속측량적영향도경，병득도료재저사간우하자전식전감기수출전압파형적이론함수표체식；연후통과방진계산，증명료축심궤적대순시전속측량계산유명현영향，병제출료상응적해결방법。
The transient speed signal may be used in diesel status fault diagnosis, but there are many interference factors in measuring procedure, and axis orbit is one of the important factors. At first, the measure errors of transient speed by shaft center track were analyzed. The axis orbit had the direct influence on the transient speed measurement, it might modulate the output signal of transducer in frequency and amplitude. The function expressions of magnetoelectric sensor' s output voltage waves in influencing of the axis orbit are derived; Through simulation computing, it is proved that axis orbit has significant influence to measuring of transient speed, and the corresponding solving method is bring forward.