基于有限元技术滑油屑末监测器检测机理研究

针对目前滑油系统中磨粒特征计算精度不高的问题,提出了一种新型基于COMSOL和ANSYS Maxwell联合仿真的计算方法,并以外电路补偿方式修正模型提高计算精度,能有效分析传感器对不同磨粒种类、大小和位置等特征的响应.研究结果表明:该方法能够计算磨粒通过传感器时,感应电压的大小;由于检测机理不同,当分别检测铁磁性和非...

Detection Mechanism of Oil Debris Monitor Based on Finite Element Technology

A new COMSOL and ANSYS Maxwell co-simulation method is proposed to solve the problem of low accuracy of abrasive characteristics calculation in lubricating oil system.Besides,the modified model of non-circuit compensation improves the calculation accuracy and can effectively analyze the response of the sensor to the characteristics such as the size and position of different abrasive particles.The results of the analysis indicate that the method can calculate the induce voltage when abrasive particles passing through the sensor,due to the different detection mechanisms,when ferromagnetic and non-ferromagnetic debris particles are detected respectively,the phase of output signal is opposite.Influenced by magnetization and eddy current,the sensor is sensitive to the detection of ferromagnetic debris particles,the response curve of the sensor to different particle sizes can provide a theoretical basis for the optimal design of the sensor structure.At present,this algorithm has been applied to the development of various types of oil debris monitors.