摘要
为研究液体平衡环抑振特点,以最简单的圆盘转子为基础,提出了液体平衡环抑振比的概念并给出了其简化表达式;基于该表达式,指出了单环结构难以实现系统完全平衡的局限性,而多环结构的改进措施可显著提高平衡环的抑振比;推导了液体平衡环作用力模型,分析了其最大线性宽度与最佳容积比。以某一平衡环为例,计算得出了单环结构线性范围随容积比的变化规律,指出最佳容积比处其线性范围最宽;基于计算结果,分析了多环结构层数与隔板厚度等对平衡环抑振能力的影响,指出层数的增加可显著改善偏心距较小时其平衡能力的大小,但由于隔板厚度的影响,其最大平衡能力会被减弱。
To investigate the vibration suppression features of hydraulic balancer, a simple planar rotor is employed to introduce the concept of vibration suppression ratio （VSR） of a balaneer, and a simplified expression for VSR is also presented. Based on VSR, the limitations of a single layer balaneer structure is analyzed and an improved structure with multiple layers balancer is introduced which can greatly enhance the VSR in the linear range. The mathematical model of the hydraulic balancer is deduced and the largest boundary of the linear region and the best volume ratio are analyzed. Calculation results for a hydraulic balancer present the trend of linear range varying with volume ratio for a single layer balancer, which indicate that the best volume ratio corresponds to the widest linear range. The effects of factors such as number of layers and thickness of the separators on the balance capability of a ~ hydraulic balaneer are analyzed, it is shown that the balance capability of a balancer can be enhanced in the linear range by increasing the number of separators, but the maximum balance capability will be weakened due to thickness of the separators.
出处
《机械科学与技术》
CSCD
北大核心
2011年第12期2092-2097,共6页
Mechanical Science and Technology for Aerospace Engineering
基金
中央高校基本科研业务费专项资金项目(JUSRP11116)资助
关键词
液体平衡环
局限性
多环结构
hydraulic balaneer
limitations
multiple-layer structure
