轴向柱塞泵流致噪声传递机理分析  

Analysis of Flow Induced Noise Transmission Mechanism in Axial Piston Pump

作　　者：崔凯 郭志敏 翟江 徐楠[3] 洪昊岑 CUI Kai;GUO Zhi-min;ZHAI Jiang;XU Nan;HONG Hao-cen(Linde Hydraulic(China)Co.,Ltd.,Weifang,Shandong 261205;Weichai Power Co.,Ltd.,Weifang,Shandong 261205;Institute of Advanced Machines Zhejiang University,Hangzhou,Zhejiang 310014)

机构地区：[1]潍柴液压传动有限公司,山东潍坊261205 [2]潍柴动力股份有限公司,山东潍坊261205 [3]浙江大学高端装备研究院,浙江杭州310014

出　　处：《液压与气动》2024年第6期133-141,共9页Chinese Hydraulics & Pneumatics

摘　　要：在高压工况下,轴向柱塞泵易产生较大的噪声,其主要成分为流体噪声。提出使用计算声学的方法,对轴向柱塞泵的流致噪声进行仿真模拟。首先,归纳了柱塞泵流体噪声的产生机理与传递路径。然后,构建了柱塞泵的声学仿真模型,对其进行数值模拟。最后,分析了柱塞泵的噪声、振动仿真结果,并通过试验加以验证。结果表明:轴向柱塞泵的流体噪声从内向外逐步传递,并作为激励源,引发内部零件与泵体的振动,进而产生辐射噪声;仿真结果与试验结果误差小于6%,仿真的准确度较高。Under high pressure conditions,axial piston pump is easy to produce large noise,the main component of which is fluid noise.A method of computational acoustics is proposed to simulate the flow induced noise of axial piston pump.Firstly,the generation mechanism and transmission path of fluid noise in piston pump are summarized.Then,the acoustic simulation model of the piston pump is constructed and the numerical simulation is carried out.Finally,the simulation results of noise and vibration of the piston pump are analyzed and verified by experiments.The results show that the fluid noise of the axial piston pump is gradually transmitted from the inside to the outside,and as an exciting source,the vibration of the internal parts and the pump body is triggered,and then the radiation noise is generated.In addition,the error between the simulation results and the test results is less than 6%,and the accuracy of the simulation is high.

关 键 词：轴向柱塞泵 流体噪声 计算声学 仿真 

分 类 号：TH137[机械工程—机械制造及自动化]