噪声与振动控制Issue(4)：52-55,4.DOI:10.3969/j.issn.1006-1335.2015.04.012
泵-马达液压传动系统中的压力拍振分析
Analysis of Pressure Beat Vibration of Pump-motor Hydraulic Transmission System
蒋亚军 1胡军科 1赵斌1
作者信息
- 1. 中南大学 机电工程学院，长沙 410083
- 折叠
摘要
Abstract
In pump-motor hydraulic transmission systems, flow pulsation exists inevitably due to the periodic oil suction and discharge of pump and motor. When the pulsation frequency of the pump approaches that of the motor, the pressure beat vibration will occur in the system. In this paper, the mathematical model of the pump-motor transmission system was established for pressure pulsation analysis. The characteristics of period and amplitude of the pressure beat vibration was analyzed theoretically. Simulation model of the pump-motor transmission system was built by using centralized parameter method. The pattern of system pressure beat vibration was analyzed through the simulation and experiment. The results indicate that the pressure beat vibration happens when the pulsation frequencies of the pump and the motor are close each other, and the amplitude of the beat vibration increases with increasing the proximity of the pulsation frequencies of the pump and the motor. Based on the mechanism analysis of the pressure beat vibration, it is suggested that reasonable selection of transmission ratio and the number of pistons can effectively inhibit the pressure beat vibration of the system.关键词
振动与波/液压传动/流量脉动/集中参数法/拍振Key words
vibration and wave/hydraulic transmission/flow pulsation/centralized parameter method/beat vibration分类
数理科学引用本文复制引用
蒋亚军,胡军科,赵斌..泵-马达液压传动系统中的压力拍振分析[J].噪声与振动控制,2015,(4):52-55,4.
