摘要
基于Lagrange法建立了径向柱塞泵定子的动力学微分方程,对其在恒流和恒压状态下的振动加速度频率特性进行分析,并设计振动测试装置对JB32H型径向柱塞泵定子进行振动试验研究。分析及试验结果表明:定子恒流状态的振动频带较宽,振动处于相对较高频率段;定子恒压状态的振动频带较窄,振动处于相对较低频率段。恒压系统具有低通滤波的作用。研究结果有助于柱塞泵的振动噪声控制。
A dynamics model was established based on Lagrange theory and the analysis was made on vibrating acceleration in frequency domain to the modes of constant flow and constant pressure. Measurement mechanism was designed to test the vibration of stator of JB32H -- type radial piston pump. It is concluded from analysis and test results that the vibration frequency band of acceleration of the stator is wider on the mode of constant flow than that on the mode of constant pressure. Stator vibrates in the range of higer frequency on the mode of constant flow than constant pressure. Constant pressure system of the pump is in the function of low--pass filter. The conclusions are helpful to the noise control of piston pump.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2009年第9期1012-1016,共5页
China Mechanical Engineering
基金
国家科技支撑计划项目(2006BAD11A03)
