论文部分内容阅读
针对机械离心式转速敏感元件的迟滞问题,对影响其迟滞特性的因素和减少迟滞的控制方法进行了研究,首先阐述了机械离心式转速敏感元件的工作原理,构建了某航空发动机用转速敏感元件的数学模型,随后利用AMESim软件对元件迟滞特性进行了仿真,对比分析了活门摩擦力和调准弹簧刚度差两个因素对迟滞特性的影响,最后通过选取不同加工状态的活门以及不同迟滞量的弹簧进行了试验验证。研究结果表明,活门摩擦力和调准弹簧刚度差是影响元件迟滞的重要因素,通过修整活门控油孔尖边和降低调准弹簧刚度差两个方面的措施,控制元件迟滞量可满足元件迟滞性能要求。
Aiming at the hysteresis of mechanical centrifugal speed sensitive components, the factors which affect the hysteresis characteristics and the control methods to reduce hysteresis were studied. Firstly, the working principle of mechanical centrifugal speed sensitive components was expounded. A speed sensitive component of aeroengine Then the AMESim software was used to simulate the hysteresis characteristics of the device. The influence of the two factors on the hysteresis characteristic was compared and analyzed. The valve with different processing states and different hysteresis Spring has been tested. The results show that the difference between valve friction and alignment spring stiffness is an important factor affecting the component hysteresis. By adjusting the valve edge of the valve and reducing the stiffness difference of the alignment spring, the hysteresis of the control element can satisfy the hysteresis performance Claim.