CAJ | 학술논문

针对滑动轴承的动态油膜压力的实时直接测量，设计一种滑动轴承动态油膜压力实时测量系统。分析聚偏氟乙烯（PVDF）压电薄膜传感器的工作原理，实验测定了传感器的性能特点，并设计相应的信号调理方法和信号显示软件编制。通过将PVDF压电薄膜传感器安装于Bently转子实验台的滑动轴承中，实时测量转子作用在轴承上的动态压力，讨论分析了动态压力信号。实验表明，PVDF压电薄膜具有较好的灵敏度、稳定性及重复性，能够有效地获得动态油膜压力信号，可应用于滑动轴承动态油膜压力的实时测量。
침대활동축승적동태유막압력적실시직접측량，설계일충활동축승동태유막압력실시측량계통。분석취편불을희（PVDF）압전박막전감기적공작원리，실험측정료전감기적성능특점，병설계상응적신호조리방법화신호현시연건편제。통과장PVDF압전박막전감기안장우Bently전자실험태적활동축승중，실시측량전자작용재축승상적동태압력，토론분석료동태압력신호。실험표명，PVDF압전박막구유교호적령민도、은정성급중복성，능구유효지획득동태유막압력신호，가응용우활동축승동태유막압력적실시측량。
A real-time test system for measurement of dynamic oil film pressure of sliding bearings was designed. The working principle of the PVDF piezoelectric-film sensor was analyzed and researched experimentally. The method of signal processing was designed and the corresponding signal-display software was programmed. The experiment of real-time measurement of the dynamic oil film pressure of the sliding bearing was conducted through installing the PVDF piezoelectric-film sensors into the sliding bearing of the Bently rotor testing bench. The dynamic pressure signals were obtained and analyzed. Result of the experiment indicates that the PVDF piezoelectric-film sensor has good sensitivity, stability and repeatability, and can accurately acquire the dynamic oil film pressure signal. Therefore, it can be used for real-time measurement of the dynamic oil film pressure of sliding bearings.