外啮合齿轮泵模型建立以及振动和噪声研究
发布时间：2019-04-10 17:16
【摘要】：本文以建立外啮合齿轮泵整体动力学模型为目标而展开工作，分别建立了齿轮泵的困油模型、齿轮啮合模型以及壳体结构系统模型。通过对模型的建立，然后对其进行仿真分析和研究，能够对齿轮泵的困油压力、啮合特性以及振动特性进行准确地评估与预测。同时还研究了异齿数对齿轮泵的影响，齿轮泵噪声产生机理以及控制方法。 主要工作包括以下几个方面： (1)以啮合点到节点的长度为整个论文的位置变量，建立齿轮泵困油模型，得出齿轮泵的相关参数，主要包括流量、容积、泄露量的计算。 (2)研究异齿数对于齿轮泵的影响表现在哪些方面，得出主大从小的异齿数组合对于流量特性有利，，对困油现象不利；主小从大的异齿数组合对其影响则相反。 (3)对齿轮泵模型进行仿真得出，当考虑困油压力对齿轮啮合产生影响时，即困油模型和齿轮啮合模型耦合的情况下得出的结果更加可靠，更能真实反映齿轮泵的运转过程。对于壳体结构系统模型的仿真主要分两部分，静力学分析和模态分析，并对泵壳结构进行优化分析，在满足强度和刚度要求的情况下通过减少壳体厚度达到减轻重量、节省材料、提高经济效益的目的。 (4)提出齿轮泵噪声进行实验方法，并且研究其噪声产生机理，以及依据噪声机理提出有效的降噪措施。
[Abstract]:In order to establish the whole dynamic model of external gear pump, the oil trapping model, gear meshing model and shell structure system model of gear pump are set up in this paper, and the oil trapping model, gear meshing model and shell structure system model of gear pump are established respectively. Through the establishment of the model and the simulation analysis and research of the gear pump, the oil trapping pressure, meshing characteristics and vibration characteristics of the gear pump can be accurately evaluated and predicted. At the same time, the influence of different tooth number on gear pump, the mechanism and control method of gear pump noise are also studied. The main work includes the following aspects: (1) taking the length of the meshing point to the node as the position variable of the whole paper, the oil trap model of gear pump is established, and the relevant parameters of gear pump are obtained, mainly including flow rate and volume. The calculation of the amount of leakage. (2) the influence of the number of different teeth on gear pump is studied, and it is concluded that the combination of large and small number of different teeth is beneficial to the flow characteristics and unfavorable to the phenomenon of oil trapping, while the effect of the combination of large number of different teeth of main and small subordinate is opposite to the effect of the combination of large number of different teeth on the gear pump. (3) the simulation of gear pump model shows that when the influence of oil trapping pressure on gear engagement is considered, the results obtained by coupling oil trap model and gear meshing model are more reliable and can reflect the operation process of gear pump. The simulation of shell structure system model is divided into two parts, statics analysis and modal analysis, and optimization analysis of pump shell structure. Under the condition of meeting the requirements of strength and stiffness, the shell thickness can be reduced to reduce the weight by reducing the shell thickness. The purpose of saving materials and improving economic efficiency. (4) the experimental method of gear pump noise is put forward, and the mechanism of noise generation is studied, and the effective noise reduction measures are put forward according to the noise mechanism.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH325
本文编号：2455977
[Abstract]:In order to establish the whole dynamic model of external gear pump, the oil trapping model, gear meshing model and shell structure system model of gear pump are set up in this paper, and the oil trapping model, gear meshing model and shell structure system model of gear pump are established respectively. Through the establishment of the model and the simulation analysis and research of the gear pump, the oil trapping pressure, meshing characteristics and vibration characteristics of the gear pump can be accurately evaluated and predicted. At the same time, the influence of different tooth number on gear pump, the mechanism and control method of gear pump noise are also studied. The main work includes the following aspects: (1) taking the length of the meshing point to the node as the position variable of the whole paper, the oil trap model of gear pump is established, and the relevant parameters of gear pump are obtained, mainly including flow rate and volume. The calculation of the amount of leakage. (2) the influence of the number of different teeth on gear pump is studied, and it is concluded that the combination of large and small number of different teeth is beneficial to the flow characteristics and unfavorable to the phenomenon of oil trapping, while the effect of the combination of large number of different teeth of main and small subordinate is opposite to the effect of the combination of large number of different teeth on the gear pump. (3) the simulation of gear pump model shows that when the influence of oil trapping pressure on gear engagement is considered, the results obtained by coupling oil trap model and gear meshing model are more reliable and can reflect the operation process of gear pump. The simulation of shell structure system model is divided into two parts, statics analysis and modal analysis, and optimization analysis of pump shell structure. Under the condition of meeting the requirements of strength and stiffness, the shell thickness can be reduced to reduce the weight by reducing the shell thickness. The purpose of saving materials and improving economic efficiency. (4) the experimental method of gear pump noise is put forward, and the mechanism of noise generation is studied, and the effective noise reduction measures are put forward according to the noise mechanism.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH325
【参考文献】
相关期刊论文 前10条
1 R. Brancati;E. Rocca;R. Russo;介眉;;计算啮合齿轮轮齿间油膜挤压的齿轮敲击振动模型[J];传动技术;2006年03期
2 李玉龙;刘q ;;异齿数对外啮合齿轮泵困油现象的影响[J];辽宁工程技术大学学报(自然科学版);2009年03期
3 臧克江;周欣;牛政科;;齿轮泵困油压力测试系统设计[J];工程设计学报;2006年04期
4 孙文英;齿轮油泵困油现象分析[J];甘肃科学学报;2001年02期
5 林帼英;;外啮合齿轮泵噪声的产生和控制[J];装备制造技术;2008年03期
6 马军;;齿轮泵的困油现象分析及其解决措施[J];淮南职业技术学院学报;2006年01期
7 杨元模;胡兵;曾名嵩;刘朝晖;吴霞;;进一步探究外啮合齿轮泵产生噪声和振动的机理及解决方法[J];机床与液压;2007年12期
8 刘剑,原思聪,王发展;MATLAB在机械设计专家系统中的应用[J];机电产品开发与创新;2005年02期
9 汤涤军;虚拟样机仿真技术在产品开发中的应用[J];机电产品开发与创新;2005年04期
10 陈英;;外啮合齿轮泵振动和噪声研究[J];吉林工程技术师范学院学报;2006年03期
相关博士学位论文 前2条
1 甘学辉;聚合物齿轮泵特性理论研究及数值模拟[D];机械科学研究院;2002年
2 李玉龙;外啮合齿轮泵困油机理、模型及试验研究[D];合肥工业大学;2009年
本文编号：2455977
本文链接：https://www.wllwen.com/kejilunwen/jixiegongcheng/2455977.html
