液压电机泵转子支撑方式对转子动特性的影响
发布时间：2018-12-12 06:04
【摘要】：液压动力单元是液压系统的基础和关键，即“心脏”，无论是工业机械，还是工程机械，以及国防尖端产品和其他涉及到液压的行业，对其都具有较高的要求。兰州理工大学以高精度、高效率、轻量化、模式化、静音节能等方面为基准点，结合相关基础性学科知识，通过理论分析、数据计算、数值模拟、流场仿真等，设计出的液压电机叶片泵动力单元具有结构紧凑、体积小、噪音小无外泄漏污染低、效率较高等优点。 如今，转子系统向着高转速、细长和高效率的方向发展。由于电机泵转子系统材质的不均匀，以及制造、加工及装配存在的误差等，导致质量偏心，加上工作中所产生的热变形、磨损等产生不均匀的离心力，使转子系统高速旋转时产生不平衡振动。此时，转子动力学问题是制约电机转子系统研制的一个主要因素。由于液压电机叶片泵的转子系统具有独特的创新设计和技术要求，其动力学分析也就具有一定的意义。 因此，本文作者运用转子系统动力学相关理论，结合电机叶片泵转子系统特点，对电机泵转子进行了相应的理论分析；对电机叶片泵转子建模，分析四种不同支撑方式下对转子系统动特性的影响，利用ANSYS分析软件分别对电机泵转子进行动力学分析计算；对电机泵转子系统的不平衡响应进行仿真分析，针对定转速稳态响应时的动不平衡响应特性进行分析；对电机泵转子系统进行了分析计算和优化；对电机泵样机转子进行动平衡实验校核，，通过实验对转速测试实验数据与流量数据进行分析。 论文的主要内容： 第1章，阐述本课题的研究背景；概述国内外液压电机泵的研究状况及发展和兰州理工大学对液压电机叶片泵的研究现状及取得的成果；陈述转子系统动力学研究概况；概括本论文的主要研究目的、内容及意义。 第2章，运用转子系统动力学相关理论，结合电机泵转子系统特点，对电机泵转子进行了相应的理论分析。 第3章，对电机叶片泵建模，分析四种不同支撑方式下对转子系统动特性的影响，利用ANSYS分析软件对电机泵转子进行动力学计算。 第4章，针对定转速的稳态响应特性对转子不平衡响应进行分析，进行动平衡校准。 第5章，针对研制出的第二代电机叶片泵样机建立了电机泵性能测试系统，对电机泵在不同压力下进行流量测试和转速测试，获得了样机的输出流量参数及转子转速。
[Abstract]:Hydraulic power unit is the basis and key of hydraulic system, that is, "heart", whether industrial machinery or construction machinery, as well as national defense cutting-edge products and other industries involving hydraulic pressure, all of them have higher requirements. Lanzhou University of Science and Technology regards high precision, high efficiency, lightweight, pattern, mute energy saving and so on as the reference point, combines the related basic discipline knowledge, through the theoretical analysis, the data computation, the numerical simulation, the flow field simulation and so on, The designed hydraulic motor vane pump power unit has compact structure, small volume and low noise. No leaks? Low pollution, high efficiency and other advantages. Nowadays, rotor system develops towards high speed, slender and high efficiency. Due to the uneven material of the motor pump rotor system and the errors existing in manufacturing, processing and assembling, the mass eccentricity is caused by the non-uniform centrifugal force caused by the thermal deformation and wear in the work. An unbalanced vibration occurs when the rotor system rotates at high speed. At this point, rotor dynamics is one of the main factors restricting the development of motor rotor system. Because the rotor system of hydraulic motor vane pump has unique innovative design and technical requirements, its dynamic analysis has certain significance. Therefore, the author applies the theory of rotor system dynamics, combined with the characteristics of rotor system of motor vane pump, carries on the corresponding theoretical analysis to the motor pump rotor. The rotor model of the motor vane pump is modeled, and the influence of four different supporting modes on the dynamic characteristics of the rotor system is analyzed. The dynamic analysis and calculation of the motor pump rotor are carried out by using the ANSYS analysis software. The unbalance response of the motor pump rotor system is simulated and analyzed, and the dynamic unbalance response characteristic of the motor pump rotor system under the steady state response of constant speed is analyzed, and the calculation and optimization of the motor pump rotor system are carried out. The rotor of motor pump prototype is checked by dynamic balance experiment, and the experimental data and flow data are analyzed. The main contents of this paper are as follows: in chapter 1, the research background of this subject is described, the research status and development of hydraulic motor pump at home and abroad and the research status and achievements of hydraulic motor vane pump in Lanzhou University of Technology are summarized. The main purpose, content and significance of this paper are summarized. In chapter 2, using the theory of rotor system dynamics and combining the characteristics of motor pump rotor system, the corresponding theoretical analysis of motor pump rotor is carried out. In chapter 3, the model of motor vane pump is built, and the influence of four different support modes on the dynamic characteristics of rotor system is analyzed. The dynamic calculation of motor pump rotor is carried out by using ANSYS software. In chapter 4, the rotor unbalance response is analyzed and calibrated. In chapter 5, the motor pump performance test system is established for the second generation motor vane pump prototype. The flow rate and speed of the motor pump are tested under different pressure, and the output flow parameters and rotor speed of the motor pump are obtained.
【学位授予单位】：兰州理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.51
本文编号：2374060
[Abstract]:Hydraulic power unit is the basis and key of hydraulic system, that is, "heart", whether industrial machinery or construction machinery, as well as national defense cutting-edge products and other industries involving hydraulic pressure, all of them have higher requirements. Lanzhou University of Science and Technology regards high precision, high efficiency, lightweight, pattern, mute energy saving and so on as the reference point, combines the related basic discipline knowledge, through the theoretical analysis, the data computation, the numerical simulation, the flow field simulation and so on, The designed hydraulic motor vane pump power unit has compact structure, small volume and low noise. No leaks? Low pollution, high efficiency and other advantages. Nowadays, rotor system develops towards high speed, slender and high efficiency. Due to the uneven material of the motor pump rotor system and the errors existing in manufacturing, processing and assembling, the mass eccentricity is caused by the non-uniform centrifugal force caused by the thermal deformation and wear in the work. An unbalanced vibration occurs when the rotor system rotates at high speed. At this point, rotor dynamics is one of the main factors restricting the development of motor rotor system. Because the rotor system of hydraulic motor vane pump has unique innovative design and technical requirements, its dynamic analysis has certain significance. Therefore, the author applies the theory of rotor system dynamics, combined with the characteristics of rotor system of motor vane pump, carries on the corresponding theoretical analysis to the motor pump rotor. The rotor model of the motor vane pump is modeled, and the influence of four different supporting modes on the dynamic characteristics of the rotor system is analyzed. The dynamic analysis and calculation of the motor pump rotor are carried out by using the ANSYS analysis software. The unbalance response of the motor pump rotor system is simulated and analyzed, and the dynamic unbalance response characteristic of the motor pump rotor system under the steady state response of constant speed is analyzed, and the calculation and optimization of the motor pump rotor system are carried out. The rotor of motor pump prototype is checked by dynamic balance experiment, and the experimental data and flow data are analyzed. The main contents of this paper are as follows: in chapter 1, the research background of this subject is described, the research status and development of hydraulic motor pump at home and abroad and the research status and achievements of hydraulic motor vane pump in Lanzhou University of Technology are summarized. The main purpose, content and significance of this paper are summarized. In chapter 2, using the theory of rotor system dynamics and combining the characteristics of motor pump rotor system, the corresponding theoretical analysis of motor pump rotor is carried out. In chapter 3, the model of motor vane pump is built, and the influence of four different support modes on the dynamic characteristics of rotor system is analyzed. The dynamic calculation of motor pump rotor is carried out by using ANSYS software. In chapter 4, the rotor unbalance response is analyzed and calibrated. In chapter 5, the motor pump performance test system is established for the second generation motor vane pump prototype. The flow rate and speed of the motor pump are tested under different pressure, and the output flow parameters and rotor speed of the motor pump are obtained.
【学位授予单位】：兰州理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.51
【参考文献】
相关期刊论文 前10条
1 ;Exploitation of Renewable Energy—A Strategic Choice for Sustainable Development of Power Industry[J];Electricity;2005年01期
2 ;Chinese Power Industry:Looking Back to 2005[J];Electricity;2006年01期
3 胡虔生;黄平林;;变频调速异步电动机设计研究[J];电机技术;2005年04期
4 ;建立节约型企业电机节能发展趋势[J];电器工业;2006年04期
5 唐任远;安忠良;赫荣富;;高效永磁电动机的现状与发展[J];电气技术;2008年09期
6 赵凯;周胜;;中国高效电动机市场现状和发展趋势展望(下)[J];电气时代;2008年07期
7 冀宏;孙磊;王峥嵘;许丹丹;李志峰;;液压电机泵中浸油电机的负载效应[J];兰州理工大学学报;2009年04期
8 王海朋;戴勇;张志清;张逊;;基于ANSYS的发动机转子临界转速计算[J];航空发动机;2009年05期
9 杨尔庄;;环保节能、电子化和液压技术[J];机电产品市场;2007年04期
10 张大杰;高殿荣;王有杰;郭明杰;;基于ANSYS的轴向柱塞液压电机泵电磁场数值计算与分析[J];机械工程学报;2008年12期
相关博士学位论文 前1条
1 孙保苍;轴承—转子系统非线性动力学若干问题研究[D];南京航空航天大学;2002年
相关硕士学位论文 前3条
1 祁琦;液压电机叶片泵能量转化效率的分析[D];兰州理工大学;2008年
2 许丹丹;液压电机叶片泵的电磁场及温度场的数值解析[D];兰州理工大学;2009年
3 孙磊;液压电机叶片泵的气隙负载效应及样机性能试验[D];兰州理工大学;2009年
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