摘要
针对以往仿真研究的不足,介绍了航空发动机气路静电监测原理并建立了尾喷管棒状静电传感器的数值计算模型。受数字信号采样思路的启发,以MATLAB为工具模拟带电颗粒物动态运动过程,基于构建的数值计算模型对脉冲波形进行仿真分析。仿真结果得到了颗粒带电量和颗粒运动速度与脉冲幅值、脉冲宽度之间的定量关系,同时给出了颗粒空间位置与脉冲幅值、脉冲宽度的定性关系。
Aiming at the shortcomings of previous simulation research,the principle of static monitoring of aero engine airway is introduced and the numerical calculation model of rod like electrostatic sensor is established.Inspired by the idea of digital signal sampling,MATLAB is used as a tool to simulate the dynamic motion process of charged particles,and the pulse waveform is simulated and analyzed based on the constructed numerical calculation model.The simulation results show the quantitative relationship between particle charge and particle motion velocity and pulse amplitude and pulse width.At the same time,the qualitative relationship between particle space position and pulse amplitude and pulse width is given.
作者
郭家琛
左洪福
姜衡
钟志荣
刘全
GUO Jia-chen;ZUO Hong-fu;JIANG Heng;ZHONG Zhi-rong;LIU Quan(College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)
出处
《航空计算技术》
2020年第1期29-32,共4页
Aeronautical Computing Technique
基金
国家自然科学基金项目资助(U1533202,U1733201,U1933202)。
关键词
航空发动机
静电监测
数值模型
棒状传感器
aero engine
electrostatic monitoring
mathematical model
rod like sensor
