弹支阀片双筒液压减振器的阻尼特性

建立了局部载荷作用下弹支环形阀片的力学模型，并讨论了阀片变形的影响规律;利用专用减振器示功机对其阻尼特性进行实验研究，并与理论推导的结果进行了对比与验证.研究了不同关键参数对减振器阻尼特性的影响规律，结果发现:随着弹簧刚度和阀片厚度的增加，减振器复原行程的阻尼力增大，且速度越大，阻尼力增幅越大;阀片环形受载面积对阻尼力有显著影响，因此建议在减振器的设计阶段对该参数进行考察设计，以扩展产品性能区间.研究结果可为弹簧阀片式减振器的设计提供可靠准确的理论参考.

Damping Characteristics of Twin-Tube Hydraulic Shock Absorber with Elastic Supporting Slices

A mechanic model of circular elastic supporting slices was established under partial load， and the influential law of slices deformation was discussed. The exclusive testing machine was used to study its damping characteristics， which was then compared and verified with that of the theoretically deduced results. The influence of different key parameters on the damping characteristics of shock absorbers was studied. The results showed that with the increase of spring stiffness and slices thickness， the damper force of rebound stroke of shock absorber increases， and the greater the speed， the big increase in damping force. The area of pressure acting on the circular slices also has a significant influence on the damping force， so it is recommended that this parameter should be examined during the design phase of the shock absorber to extend the product performance interval. The results may provide reliable and accurate theoretical reference for the design of twin-tube hydraulic shock absorber with elastic supporting slices.