摘要
首先对柱塞泵内部的激振源和振动传递路径进行分析,并提出壳体是柱塞泵减振降噪研究的主要对象。然后在ANSYS中建立起柱塞泵壳体的有限元模型,并对其进行模态分析;根据模态分析结果,对壳体结构进行优化。优化后的壳体结构的固有频率有一定的提高,这说明柱塞泵壳体的结构刚度得到加强,有利于柱塞泵的减振降噪。最后测量不同工况下的柱塞泵的噪声辐射和振动情况,并从系统压力和转速两个方面对实验结果进行分析与对比。
The excitation source and the transmission path of the vibration in the piston pump were analyzed. The research on vibration and noise reduction of the axial piston pump based on structure optimization of the housing was presented. The finite element model of the housing was built and analyzed in ANSYS. According to the results of the modal analysis, the structure of the housing was optimized. The natural frequencies of the housing are increased after structure optimization, it is shown the structure stiffness of the housing is enhanced, the vibration and noise emission of the piston pump are reduced. The noise radiation and vibration of this piston pump were measured under different conditions, and the experimental results were analyzed and compared from the system pressure and rotary, speed.
出处
《机床与液压》
北大核心
2010年第13期116-121,共6页
Machine Tool & Hydraulics
基金
国家"863"高技术产业化研究资助项目(2007AA041803)
上海市数字化汽车车身工程重点实验室开放课题基金资助项目(MSV-2009-02)
十一五科技支撑计划资助项目(2006BAF01B03-01)
关键词
减振降噪
壳体
柱塞泵
结构优化
模态分析
Vibration and noise reduction
Housing
Axial piston pump
Structure optimization
Modal analysis
