PGH型内啮合齿轮泵减振降噪的优化
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摘要
为降低齿轮泵在工作过程中产生的振动与噪音,获得良好的工作性能,针对PGH型内啮合齿轮泵,分析了振动与噪音的产生机理,采用振速法和ANSYS一阶优化求解方法,将该内齿轮泵泵体非支撑面厚度作为设计参数,以泵体非支撑面辐射声功率级为目标函数进行优化分析,利用ANSYS和声学软件进行应力求解和辐射功率仿真,得到了壁面厚度的最优组合.结果表明:优化后的内齿轮泵振动、噪音明显得到改善,最大降幅可达15dB左右,所采用的振速法和ANSYS一阶优化法对内啮合齿轮泵的减振与降噪是有效的.
In order to reduce the vibration and noise generated by the gear pump during the working process and obtain good working performance, the mechanism of vibration and nose was analyzed for the PGH internal gear pump. The optimization analysis was carried out by adopting the vibration velocity method and ANSYS first order optimization method, taking the thickness of the non-support surface of the internal gear pump as the design parameters, and using the acoustic power level of the non-support surface of the pump body as the objective function. The ANSYS and acoustic software are used for stress solution and radiation power simulation to obtain the optimum combination of wall thickness. The results show that the optimized gear pump vibration and noise are improved obviously, and the maximum drop can reach to about 15 dB for internal gear pump vibration. The vibration speed method and the ANSYS first order optimization method used in this study are effective in reducing the vibration and noise of the internal gear pump.
In order to reduce the vibration and noise generated by the gear pump during the working process and obtain good working performance, the mechanism of vibration and nose was analyzed for the PGH internal gear pump. The optimization analysis was carried out by adopting the vibration velocity method and ANSYS first order optimization method, taking the thickness of the non-support surface of the internal gear pump as the design parameters, and using the acoustic power level of the non-support surface of the pump body as the objective function. The ANSYS and acoustic software are used for stress solution and radiation power simulation to obtain the optimum combination of wall thickness. The results show that the optimized gear pump vibration and noise are improved obviously, and the maximum drop can reach to about 15 dB for internal gear pump vibration. The vibration speed method and the ANSYS first order optimization method used in this study are effective in reducing the vibration and noise of the internal gear pump.
引文
[1]宋友明.面向减振降噪的高压齿轮泵结构优化设计研究[D].南华大学,2015.
[2]周建星,孙文磊,万晓静.齿轮减速器振动噪声预估公式定制方法研究[J].振动与冲击,2014,33(7):174-180.ZHOU Jianxing,Sun Wenlei,Wan Xiaojing.Fornula-fitting method for predicting gear reducer noise radiation[J].Journal of Vibration and Shock,2014,33(7):174-180.
[3]周高明.基于壳体结构优化的轴向柱塞泵减振降噪技术研究[D].浙江大学,2011.
[4]何伟宏.降低齿轮泵噪声的方法[J].河南科技,2011,(12):71.HE Weihong.Method of reducing gear pump noise[J].Henan Science and Technology,2011,(12):71.
[5]毕晴春,玲俊杰,张策,等.IGP型高压低噪声内啮合齿轮泵结构特点分析[J].机床与液压,2010,38(2):50-52.BI Qingchun,Ling Junjie,Zhang Ce.Analysis on Structure Feature of IGP High Pressure Low Noise Internal Gear Pump.[J]Machne Tool&Hydraulics.2010,38(2):50-52.
[6]徐志锋,邵忍平.齿轮系统噪声预估及声诊断方法研究[J].计算机测量与控制,2009,17(9):1 688-1 691.XUN Zhifeng,SHAO Renping.Forecast of sound pressure level of gear systems and fault diagnosis based on acoustics[J].Computer Measurement&Control,2009,17(9):1 688-1 691.
[7]张军,兆文忠,谢素明,等.结构-声场耦合系统声压响应优化设计研究[J].振动工程学报,2005,18(4):519-523.ZHANG Jun,ZHAO Wenzhong,Xie Suming.Optimal design of sound pressure response of structure-acoustic field coupling system[J].Journal of Vibration Engineering,2005,18(4):519-523
[8]黎胜,赵德有.结构声辐射的振动模态分析和声辐射模态分析研究[J].声学学报,2004,29(3):200-208.LI Sheng,ZHAO Deyou.Vibration modal analysis and acoustic radiation modal analysis of structural acoustic radiation[J].Acta Acustica,2004,29(3):200-208.
[9]杨德庆,柳拥军.薄板减振降噪的拓扑优化设计[J].船舶力学,2003,7(5):91-96.YANG Deqing,LIU Yongjun.Structural topology optimal design to reduce vibration and noise of thin plat[J].Journal of Ship Mechanics,2003,7(5):91-96.
[10]Yoshiharu Inaguma.Friction of outer rotor affecting friction torque characteristics in an internal gear pump[J].Proceedings of the Institution of Mechanical Engineers,Part C:Journal of Mechanical Engineering Science,2015,229(16):112-115.
[2]周建星,孙文磊,万晓静.齿轮减速器振动噪声预估公式定制方法研究[J].振动与冲击,2014,33(7):174-180.ZHOU Jianxing,Sun Wenlei,Wan Xiaojing.Fornula-fitting method for predicting gear reducer noise radiation[J].Journal of Vibration and Shock,2014,33(7):174-180.
[3]周高明.基于壳体结构优化的轴向柱塞泵减振降噪技术研究[D].浙江大学,2011.
[4]何伟宏.降低齿轮泵噪声的方法[J].河南科技,2011,(12):71.HE Weihong.Method of reducing gear pump noise[J].Henan Science and Technology,2011,(12):71.
[5]毕晴春,玲俊杰,张策,等.IGP型高压低噪声内啮合齿轮泵结构特点分析[J].机床与液压,2010,38(2):50-52.BI Qingchun,Ling Junjie,Zhang Ce.Analysis on Structure Feature of IGP High Pressure Low Noise Internal Gear Pump.[J]Machne Tool&Hydraulics.2010,38(2):50-52.
[6]徐志锋,邵忍平.齿轮系统噪声预估及声诊断方法研究[J].计算机测量与控制,2009,17(9):1 688-1 691.XUN Zhifeng,SHAO Renping.Forecast of sound pressure level of gear systems and fault diagnosis based on acoustics[J].Computer Measurement&Control,2009,17(9):1 688-1 691.
[7]张军,兆文忠,谢素明,等.结构-声场耦合系统声压响应优化设计研究[J].振动工程学报,2005,18(4):519-523.ZHANG Jun,ZHAO Wenzhong,Xie Suming.Optimal design of sound pressure response of structure-acoustic field coupling system[J].Journal of Vibration Engineering,2005,18(4):519-523
[8]黎胜,赵德有.结构声辐射的振动模态分析和声辐射模态分析研究[J].声学学报,2004,29(3):200-208.LI Sheng,ZHAO Deyou.Vibration modal analysis and acoustic radiation modal analysis of structural acoustic radiation[J].Acta Acustica,2004,29(3):200-208.
[9]杨德庆,柳拥军.薄板减振降噪的拓扑优化设计[J].船舶力学,2003,7(5):91-96.YANG Deqing,LIU Yongjun.Structural topology optimal design to reduce vibration and noise of thin plat[J].Journal of Ship Mechanics,2003,7(5):91-96.
[10]Yoshiharu Inaguma.Friction of outer rotor affecting friction torque characteristics in an internal gear pump[J].Proceedings of the Institution of Mechanical Engineers,Part C:Journal of Mechanical Engineering Science,2015,229(16):112-115.