Development and study on automatic balancer basedon counter weight by magnetic force
基于ANSYS Maxwell 2D内置式“V”型永磁同步电动机的转子结构优化-陈贤阳
[ Keyword ] interior; permanent magnet synchronous motor; magnetic pole shift; rotor eccentric; ANSYS Maxwell2D; cogging torque
1 前言
世界各国节能和环保的政策要求，电动汽车的研制和推广已得到广泛的关注，而对高
为槽数，
GCD（z，2p）
为
2p
和
z
的最大公约数。
由(6) ~(8)分析可知，当永磁体对称时，n 只有取值为 Np 的倍数时，该次谐波才不为零。
[6]
故可得知磁极偏移对整数槽永磁电动机的齿槽转矩的消弱是有明显效果的 。
3 磁极偏移对齿槽转矩的影响
利用 Maxwell 有限元分析软件，分析不同的磁极偏移角度时，电机齿槽转矩的变化情
已知一款汽车用永磁同步电动机的主要参数，基于 Maxwell2D 有限元仿真，采用磁极
[5]
偏移和转子铁芯的偏心距措施，使电机的齿槽转矩得到优化 。根据优化后电机尺寸参数
试制样机，利用电机实验平台，测得样机的性能符合要求。
1.1 永磁同步电动机主要技术参数
本方案主要技术指标如表 1 所示
表 1 主要技术指标
额定电压：183V
电动汽车驱动系统的轻量化设计与研究
电动汽车驱动系统的轻量化设计与研究下载温馨提示：该文档是我店铺精心编制而成，希望大家下载以后，能够帮助大家解决实际的问题。
文档下载后可定制随意修改，请根据实际需要进行相应的调整和使用，谢谢!本店铺为大家提供各种各样类型的实用资料，如教育随笔、日记赏析、句子摘抄、古诗大全、经典美文、话题作文、工作总结、词语解析、文案摘录、其他资料等等，如想了解不同资料格式和写法，敬请关注!Download tips: This document is carefully compiled by the editor. I hope that after you download them, they can help you solve practical problems. The document can be customized and modified after downloading, please adjust and use it according to actual needs, thank you!In addition, our shop provides you with various types of practical materials, such as educational essays, diary appreciation, sentence excerpts, ancient poems, classic articles, topic composition, work summary, word parsing, copy excerpts, other materials and so on, want to know different data formats and writing methods, please pay attention!随着人们对环保意识的提高，电动汽车作为一种清洁能源交通工具受到越来越多的关注和使用。
高速磨削在线动平衡系统硬件设计
高速磨削在线动平衡系统硬件设计尹明泉;景敏卿;刘恒;樊红卫【摘要】For unbalance of grinding wheel-motor spindle in high -speed grinding, bardwares of online dynamic balancing system are designed. Monitoring and control unit is proposed, and preprocessing and filter circuit of vibration signals is designed. A auto balancer with electmmagnetic drive and electromagnetic lock is designed, and its thee-dimensional model is btilt in Pro/E. These researches lay an important foundation for online dynamic balancing system.%针对高速磨削加工过程中砂轮一电主轴系统的不平衡现象,设计了在线动平衡系统的主要硬件.研究了在线动平衡测控系统的设计原理和组成,对振动信号的调理和滤波电路进行了设计.研究了电磁力驱动与锁紧的平衡头结构,在Pro/E中建立了该平衡头的三维模型.研究工作为动平衡系统开发奠定了基础.【期刊名称】《制造技术与机床》【年(卷),期】2011(000)006【总页数】4页(P156-159)【关键词】高速磨削;在线动平衡;砂轮一电主轴;测控系统;自动平衡头【作者】尹明泉;景敏卿;刘恒;樊红卫【作者单位】西安交通大学机械工程学院机械电子及信息系统研究所,陕西西安,710049;西安交通大学机械工程学院机械电子及信息系统研究所,陕西西安,710049;西安交通大学机械工程学院机械电子及信息系统研究所,陕西西安,710049;西安交通大学机械工程学院机械电子及信息系统研究所,陕西西安,710049【正文语种】中文【中图分类】TG580.236现代高速数控机床普遍采用电主轴取代传统机械主轴，因此主轴转速可达上万转，甚至数十万转。
磁轴承开关型功率放大器的研究
南京航空航天大学硕士学位论文磁轴承开关型功率放大器的研究姓名：臧晓敏申请学位级别：硕士专业：电力电子与电力传动指导教师：邓智泉20040301南京航空航天大学硕士学位论文摘要高速磁轴承的发展需要高性能、高效率的功率放大器与之配套。
开关型功率放大器因其损耗小、效率高、通频带宽等优点，广泛取代了早期低效率的线性功放，成为目前功率放大器研究的重点。
传统的磁轴承开关功放大都采用电流两态调制技术，存在电流纹波大、动态特性受限等缺点。
电流三态调制技术很好地克服了上述缺点，实现了开关功放低电流纹波和良好的动态特性的理想结合。
本文讨论了开关功放设计的一般原则，分析比较了不同的控制策略。
仿真结果验证了电流三态调制技术的优越性能；实验表明本文研制的基于采样一保持策略电流三态调制开关功放具有结构简单、效率高、纹波小、电流动态响应快、频带宽、受负载影响小等优点，能很好地满足高速磁轴承的耍求。
关键词：开关型功率放大器，磁轴承，采样一保持，电流三态调制磁轴承开关型功率放大器的研究ＡｂｓｔｒａｃｔＷｉｔｈｔｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｈｉｇｈ—ｓｐｅｅｄｍａｇｎｅｔｉｃｂｅａｒｉｎｇ，ｔｈｅｈｉｇｈｅｒｒｅｑｕｉｒｅｍｅｎｔｓｏｆｐｏｗｅｒａｍｐｌｉｆｉｅｒａｒｅｒａｉｓｅｄｉｎｃｌｕｄｉｎｇｈｉｇｈｐｅｒｆｏｒｍａｎｃｅａｎｄｈｉｇｈｅｆｆｉｃｉｅｎｃｙ．Ｓｗｉｔｃｈｉｎｇｐｏｗｅｒａｍｐｌｉｆｉｅｒｉｓｐｏｐｕｌａｒｌｙｕｓｅｄｂｅｃａｕｓｅｏｆｉｔｓｖｉｒｔｕｅｓｏｆｌｏｗｐｏｗｅｒｌｏｓｓｅｓ，ｈｉｇｈｅｆｆｉｃｉｅｎｃｙａｎｄｈｉ曲ｆｒｅｑｕｅｎｃｙｂａｎｄｗｉｄｔｈ．Ｔｈｅｓｔａｎｄａｒｄｃｕｒｒｅｎｔｃｏｎｔｒｏｌｌｅｄｂｉ—ｓｔａｔｅＰＷＭｓｗｉｔｃｈｉｎｇｐｏｗｅｒａｍｐｌｉｆｉｅｒｈａｓｉｔｓｉｎｔｒｉｎｓｉｃｄｅｆｉｃｉｅｎｃｉｅｓ，ｓｕｃｈａｓｓｉｇｎｉｆｉｃａｎｔｈａｒｍｏｎｉｃｄｉｓｔｏｒｔｉｏｎａｎｄｒｅｓｔｒｉｃｔｉｏｎｏｆｔｈｅｄｙｎａｍｉｃｃｈａｒａｃｔｅｒｉｓｔｉｃ，ｗｈｉｃｈｈａｖｅｓｅｒｉｏｕｓｎｅｇａｔｉｖｅｅｆｆｅｃｔｓｏｎｔｈｅｍａｇｎｅｔｉｃｂｅａｒｉｎｇｓｙｓｔｅｍ．Ｔｏｏｖｅｒｃｏｍｅｔｈｅｓｅｄｒａｗｂａｃｋｓ，ｔｈｅａｐｐｌｉｃａｔｉｏｎｏｆｃｕｒｒｅｎｔｃｏｎｔｒｏｌｌｅｄｔｒｉ—ｓｔａｔｅＰＷＭｔｅｃｈｎｏｌｏｇｙｔｏｔｈｅｓｗｉｔｃｈｉｎｇｐｏｗｅｒａｍｐｌｉｆｉｅｒｉｓｐｒｏｐｏｓｅｄ，ｗｈｉｃｈｃａｎｐｒｏｖｉｄｅｂｅＲｅｒｄｙｎａｍｉｃｒｅｓｐｏｎｓｅｃｏｍｂｉｎｅｄｗｉｔｈｌｏｗｅｒｈａｒｍｏｎｉｃｄｉｓｔｏｒｔｉｏｎ．Ｔｈｉｓｐａｐｅｒｄｅｓｃｒｉｂｅｓｔｈｅｇｅｎｅｒａｌｄｅｓｉｇｎｒｕｌｅｓｏｆｓｗｉｔｃｈｉｎｇｐｏｗｅｒａｍｐｌｉｆｉｅｒａｎｄａｎａｌｙｓｅｓｄｉｆｆｅｒｅｎｔｃｏｎｔｒｏｌｓｔｒａｔｅｇｉｅｓ．Ｓｉｍｕｌａｔｉｏｎｃｏｍｐａｒｉｓｏｎｓｖｅｒｉｆｙｔｈｅｓｕｐｅｒｉｏｒｐｅｒｆｏｒｍａｎｃｅｏｆｔｈｅｔｒｉ—ｓｔａｔｅＰＷＭｔｅｃｈｎｏｌｏｇｙ．Ｅｘｐｅｒｉｍｅｎｔａｌｒｅｓｕｌｔｓｉｎｄｉｃａｔｅｔｈａｔｔｈｅｃｕｒｒｅｎｔ－ｃｏｎｔｒｏｌｌｅｄｔｒｉ—ｓｔａｔｅＰＷＭｓｗｉｔｃｈｉｎｇｐｏｗｅｒａｍｐｌｉｆｉｅｒｂａｓｅｄｏｎｓａｍｐｌｅ—ｈｏｌｄｓｔｒａｔｅｇｙｈａｓｈｉｇｈｆｒｅｑｕｅｎｃｙｂａｎｄｗｉｄｔｈａｎｄｆａｓｔｄｙｎａｍｉｃｒｅｓｐｏｎｓｅｉｎａｗｉｄｅｌｏａｄｒａｎｇｅ，ｗｈｉｃｈｃａｒｌｗｅｌｌｍｅｅｔｔｈｅｄｅｍａｎｄｓｏｆｈｉｇｈ・ｓｐｅｅｄｍａｇｎｅｔｉｃｂｅａｒｉｎｇ．Ｋｅｙｗｏｒｄｓ：ｓｗｉｔｃｈｉｎｇｐｏｗｅｒａｍｐｌｉｆｉｅｒ，ｍａｇｎｅｔｉｃｂｅａｒｉｎｇ，ｓａｍｐｌｅ・ｈｏｌｄ，ｃｕｒｒｅｎｔ．ｃｏｎｔｒｏｌｌｅｄｔｒｉ—ｓｔａｔｅＰＷＭ南京航空航天大学硕士学位论文第一章绪论Ｉ．Ｉ磁悬浮轴承Ｉ．Ｉ．１磁悬浮轴承概述磁悬浮轴承（以下简称磁轴承，ＭａｇｎｅｔｉｃＢｅａｒｉｎｇ）是利用磁力作用将转子悬浮于空间，使转子和定子之间没有机械接触的一种高性能轴承。
中英文文献翻译—重型商用车电控机械式自动变速器换挡规律的研究
附录Research on Self-Adaptive Shift Schedule in Automated Mechanical Transmission of Heavy-Duty CommercialVehicleIn our country, commercial vehicles include heavy-duty commercial vehicles, middle-duty commercial vehicles, light-duty commercial vehicles and mini commercial vehicles. Heavy-duty commercial vehicles market in china has been growing up rapidly in these years. With the increase of the fuel price, heavier emissions regulations, continued pressure on operating costs, increasing traffic congestion, and a shortage of skilled drivers, these changes will take place in the engine , the exhaust gas treatment system, and the transmission on vehicles, especially middle-duty and heavy-duty commercial vehicles.At the aspect of the transmission, we look at automated Mechanical transmission (AMT) attentively, which is low produce cost, high efficient, can shift and operate clutches automatically. Till now, the vehicle factories in our country have no ability to manufacture the automatic gearbox. In recent years, many manufacturers have been trying to seek automatic products, which suit our country situation and can be developed independently. In respect that we have many Mechanical transmission plants, for its high efficiency, low cost, and easier manufacture, AMT is considered to be the right product, which is the most suitable for us and has greatest potential in the development of industry.A new technology for AMT is non-clutch operation, and this technology bases on customary AMT. In the process of gear-shifting torque,the clutch does not separate from the engine and we need to adjust the running speed and the torque of the engine only. Eaton Company already uses this new technology in one transmission. If we put the new technology in commercial vehicles, there will be great meaning in automatic transmission of the commercial vehicles.Shift schedule decides the time to shift and it is the soul of the automatic transmission. When the AMT is working, by comparing the states of the vehicle with the optimal shift schedule, the AMT decides the optimal shift time and achieves the shift automatically. This will lessen the tiredness of the driver and improve the safety. Consequently, how to establish the best shift schedule is a crucial research aspect of AMT.The shift schedule of the automatictransmission comes from 1-parameter、2-parameter to 3-parameter operation. In recent years, more and more researchers pay attention to intelligent control theory, and they want put this theory in shift schedule to make the bined with the national 863 project, Research and Development of AMT, this paper aims at the shift schedule of the AMT in heavy-duty commercial vehicles. According as the characteristic of the engine and the parameter of the vehicle, this paper established the traditional shift schedule and the self-adaptive shift schedule and according to this regulation simulates actual situation of the vehicle. When the AMT is working, by comparing the states of the vehicle with the optimal shift schedule, the AMT decides the optimal shift time and achieves the shift automatically. This will lessen the tiredness of the driver and improve the safety. The outcome shows these regulations are feasible. This paper has researched on these aspects as follows:1.At first the development history and the present conditions of automatic transmission are introduced in detail. At the same time, this paper analyses the makeup, the principium and the technique of AMT. At last the excellence and principium of the technique (non-clutch operated AMT) are discussed.2.Research on shift schedule of automatic transmissionThis paper analyses the characteristics of some kinds of shift schedules. Shift schedule is realized by electronic shift system.3.The establishment of the shift scheduleShift schedule is the basic part of automatic transmission. In this paper, dynamic capability and fuel consumption are considered. According as torque and fuel consumption characteristics of the engine, 2-parameter traditional shift schedule for the commercial vehicle is obtained. This regulation can be used in electronic control unit (TCU) directly and there are certain significance and actual value.Then this paper designs the self-adaptive shift schedule.4.Modeling of gear-shift regulation and vehicleFor qualitatively researching on the effectiveness of the shift schedule control system designed, and proceeding the simplification to the very complicated vehicle system, and putting forward the some assumption conditions of the simplification. At the same time keeps its general dynamic characteristics. And according to the construction parameter and technique data of one commercial vehicle, making use of the language of MATLAB with the tool of SIMULINK, for engine, transmission, shift schedule, whole vehicle dynamic model to proceed to set up models in SIMULINK.5.The simulation of shift schedule and the analysisFor the sake of verifying the rationality and possibilities of the shift schedule, this paper makes use of the models above. On the whole vehicle model this paper set up the simulation to test the regulation in some simulative situation. By thesimulation analysis, the simulation result indicates that the simulation model and the shift schedule designed in the article are reasonable.In conclusion, this paper studied the shift schedule of the automated mechanical transmission systematically on the basis of former research. In the paper, only the above work is completed because of limited time and the difficulty of AMT system. Further research should be continued in order to improve the properties of the AMT system and vehicle in the future.Shifting performance is defined as the extent of swiftness and softness during the procedure of non-power shifting and to extend the life of the power train. The index is comfort of passenger, time duration and shock, nine factors maybe influence the shifting performance, and two experimental methods can be used to investigate the nature of this performance: one is collecting real-time data during road experiment and analyzing them, the other is the simulation of the operation conditions of the vehicle.The core of the AMT system is the control strategy, the principle of the clutch engagement, shifting procedure, the choice of control method and the CAN communication between TCU and ECU can influence the shifting performance.Shifting schedule is the schedule of auto shifting time between two shifts with controlling parameters. It includes economical and dynamical shifting schedule. At present, shifting schedule of two controlling parameters (vehicle speed and opening on throttle) is mainly used. If shifting schedule is not good, shifting will not happen at right time and the working condition of engine will be severe. It will make the sound of engine abnormally and stability badly through the whole shifting procession. Sometimes even flame out Schedule of clutch engagement is determined by releasing journey of clutch, opening of throttle, shifting, vehicle speed and loading. The mainControlling goals are engaging quantity and engaging speed. The engaging control of clutch is mainly referred to the control of engaging speed. It is divided into three stages: fast, slow, fast. Shifting quality is directly influenced by the second stage. If engaging harder, it will make shifting concussion, even flame out; if engaging more slowly, it will make the friction time longer and reduce its longevity. The main controlling parameters are difference between initiative and passive and torques on both sides. When torques being approximately equal, it is proved by experiments that it can guarantee shifting time andnot make concussion through the procession of engagement at the time of difference of rotating speed below some value. Meanwhile, the abrasion of clutch is not severe.Shifting procedure is the procedure through working harmoniously among engine, clutch and transmission. Their cooperation will affect shifting time heavily. In order to decrease the shifting time, the time that is spent on the friction of the clutch should be decreased first. If we intend to increase the time of non-load stage, which helps to minimize the difference of the rotary speed between the driving disc and the driven disc. If we intend to shorten the time of the non-load stage, engage the clutch immediately after the gear change. The clutch can engage in a satisfying period if the new method of controlling the engaging speed of the clutch is realizable. And the time that is spent on synchronizing the gears should also be shortened. It can be realized in the following two ways. The first is to decrease the difference of the driving gear and the driven gear. The second is to increase the shifting force. If realizing the union control between ECU and TCU by CAN bus, AMT has the best control and the best shifting performance by use of communication strategy between TCU and ECU.Influence on shifting performance by hardwareThe elements in hardware system are the basis of proper functions of AMT. Executors, sensors, electronic components, hydraulic systems have influences on shifting performance, the choice of hardware parameters is of vital important to improvement of shifting performance.With the development of the theory and technology of vehicle, the technical increasingly mature of microprocessor and the extensive application of electronic technique on the car, people have no limit at satisfying the automotive means of transportation only, facing gradually from the request of the car power, economy and easily manipulating, flexibility, safety, an d the intelligent type of car becomes the focus in the vision of people increasingly. Company’s publicity slogan of" person, car, life"," make people the center" etc. On the side exhibit the expectation of people to the automotive individuation, humanity.In the development direction of the car intelligence, the intelligence of the automatic gearbox has important effect. But the intelligence of the automatic gearbox embodies at theestablishment of the shift regulation. For the fashion, for satisfying people to the new automotive request, for competitive advantage of the car type, at present, each big factory in world worked very much in shift regulation of new car type. Among those, the most arresting is AL4 automatic gearbox developed by PEUGEOT/CITROEN and RENAULT in that there unexpectedly are the 10 kinds of so many shift regulations. In the big system of person—car —road, the good and bad of the car control, reflect primarily in the coordination of the vehicle and environment (road), the coordination of the vehicle and person. And so, the electronic automatic control system can save various regulations to provide the driver to choose to use, not only having the economic regulation, motive (call to sport the type again) regulation, but also still having the general (usual) regulation, environment temperature and regulation with the outsider condition variety etc. Namely, the point of shifting can be freely enacted for every kind of regulation. In the intelligence direction of the shift regulation, everyone has made much work up to now, parts of the results has been applied on the car. But the work that developing this intelligent shift regulation still is hard, this is mainly because of:1. The intelligence degree of the current intelligent gearbox needs to be increased, and it expresses at that accurate degree to identify environment is not high and to identify the driver’s driving can't give satisfaction.2. The intelligence function is still not perfect. The intelligent automatically shift system is an open system; it must be continuously perfect and plentiful on the current foundation. Only this way, it can adapt to the driving request of the different drivers, reducing the driver’s labor strength, increasing the performance of the whole vehicle.Conventional design method which used in the structure parameters' design of automobile gear box and synchronizer is a time-wasting job and hard work, and it is difficult to get idea design parameters and no good to the enhancement of products qualities. The optimum design of automobile gearbox and synchronizer which take the advantage of computers seeking the best structure parameters within constrains is a perfect and high-quality design method. The main target of this article is to set up a optimum mathematical model of structure parameters of the truck's gearbox and synchronizer, theauth or use a optimum method based on K-T equation to improve the design level of automobile gearbox and synchronizer. Gear box is a important part of transmission, so the optimization of automobile gearbox is very important because the transmission is a main part of automobile. According to the design request and character sofa sort of truck, the optimum mathematical model of truck's gearbox is analyzed and set up in this article to decrease its weight and volume when the strength, stiffness, and lifetime of parts are permitted. And we can receive a satisfaction result through optimizing it's parameter for instance.重型商用车电控机械式自动变速器换挡规律的研究机械式自动变速器AMT(Automated Mechanical Transmission),是在原有齿轮式机械变速器的基础上加装电脑控制系统,对供油调节装置、离合器、变速箱的控制采用了电机驱动或液压驱动的执行机构,实现起步、选挡、换挡的自动化控制,使汽车成为自动变速的汽车。
基于自适应零电压矢量双脉冲法的永磁同步电机带速重投策略
电气传动2023年第53卷第12期ELECTRIC DRIVE 2023Vol.53No.12摘要：在某些特殊应用场合，永磁同步电机运行过程中可能发生断电，需要其在旋转状态下重新启动，即带速重投，准确的初始位置/转速观测是带速重投的基础。
针对传统零电压矢量脉冲法在高转速下初始位置/转速观测时脉冲宽度和脉冲间隔无法自动调节的问题，研究零电压矢量脉宽和脉冲间隔自适应调节策略。
通过比较实时监测的短路电流矢量幅值与所设置的临界值，进行零电压矢量脉冲宽度自适应调节；根据零电压矢量单脉冲法的转速预估结果，实现脉冲间隔自适应调节。
实验结果表明，所研究的自适应零电压矢量双脉冲法能够针对不同的初始转速自适应确定合适的脉宽和脉冲间隔，有利于提高高转速下初始位置/转速观测和带速重投性能。
关键词：永磁同步电机；带速重投；初始位置/转速观测；自适应零电压矢量双脉冲法中图分类号：TM28文献标识码：ADOI ：10.19457/j.1001-2095.dqcd25114Flying Start of PMSM Strategy Based on Adaptive Double Zero Voltage Vector Pulse Method ZHANG Guoqiang ，LI Rundong ，HUANG Yuanming ，DING Dawei ，WANG Gaolin ，XU Dianguo（School of Electrical Engineering and Automation ，Harbin Institute of Technology ，Harbin 150001，Heilongjiang ，China ）Abstract:Supply interruption may occur during the operation of permanent magnet synchronous motor （PMSM ）in some special applications and it needs to be restarted in the rotating state which is called flying start ，the accurate initial position/speed observation is the foundation of flying start.Aiming at the problem that the pulse width and interval time cannot be adjusted automatically when the traditional zero-voltage vector （ZVV ）pulse method is used to observe the initial position/speed ，the adaptive adjustment strategy of ZVV pulse was studied.The ZVV action time was adjusted adaptively through comparing the amplitude of short circuit current vector monitored in real time with the threshold value.The ZVV interval time was adjusted adaptively according to the speed prediction results of single ZVV pulse method.The experimental results show that the designed adaptive double ZVV pulse method can adjust appropriate pulse width and interval time of ZVV pulse for different initial speed ，which is conducive to improving the performance of initial position/speed observation and flying start at high speed.Key words:permanent magnet synchronous motor （PMSM ）；flying start ；initial position/speed observation ；adaptive double zero voltage vector （ZVV ）pulse method基金项目：国家自然科学基金（52177034）作者简介：张国强（1987—），男，博士，教授，主要研究方向为交流电机控制理论与应用技术，Email ：************.cn基于自适应零电压矢量双脉冲法的永磁同步电机带速重投策略张国强，李润东，黄圆明，丁大尉，王高林，徐殿国（哈尔滨工业大学电气工程及自动化学院，黑龙江哈尔滨150001）永磁同步电机（PMSM ）由于调速性能好等优势而被广泛应用于电力传动系统中[1]。
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Ｄｅｖｅｌｏｐｍｅｎｔ ａｎｄ ｓｔｕｄｙ ０ｎ ａｕｔｏｍａｔｉｃ ｂａｌａｎｃｅｒ ｂａｓｅｄ ０ｎ ｃｏｕｎｔｅｒ Ｗｅｌｇｌｉｔ Ｄｙ ｍａｇｎｅｔｉｃ ｔｏｒｃｅ － ●ｌ』ｌ ¨
Ｌｉｕ Ｈｅｎｇ，Ｆａｎ Ｈｏｎｇｗｅｉ，Ｊｉｎｇ Ｍｉｎｑｉｎｇ， Ｗａｎｇ Ｒｅｎｃｈａｏ，Ｚｈｉ Ｊｉｎｇｊｕａｎ （Ｓｃｈｏｏｌ ｏｆ Ｍｅｃｈａｎｉｃａｌ Ｅｎｇｉｎｅｅｒｉｎｇ，Ｘｉ’ａｎ Ｊｉａｏｔｏｎｇ Ｕｎｉｖｅｒｓｉｔｙ，Ｘｉ’ａｎ ７ １ ００４９，Ｃｈｉｎａ）
Ａｂｓｔｒａｃｔ：Ｒｏｔａｔｉｎｇ ｍａｃｈｉｎｅｓ ａｒｅ ｖｅｒｙ ｓｅｎｓｉｔｉｖｅ ｔｏ ｍａｓｓ ｕｎｂａｌａｎｃｅ ｗｈｉｃｈ ｈａｓ ａ ｈａｒｒｎｆｕｌ ｅｆｆｅｃｔ ｏｎ ｉｔｓ ｒｕｎｎｉｎｇ ａｃｃｕｒａｃｙ ａｎｄ ｓｅｒｖｉｃｅ ｌｉｆｅ．Ｔｈｅｒｅｆｏｒｅ．ａ ｖａｒｉｅｔｙ ｏｆ ｄｙｎａｍｉｃ ｂａｌａｎｃｉｎｇ ｍｅｔｈｏｄｓ ａｎｄ ｄｅｖｉｃｅｓ ａｒｅ ｓｔｕｄｉｅｄ ｔｏ ｒｅｄｕｃｅ ｔｈｅ ｖｉｂｒａｔｉｏｎ ｃａｕｓｅｄ ｂｙ ｍａｓｓ ｕｎｂａｌａｎｃｅ．Ｏｎ．１ｉｎｅ ａｃｔｉｖｅ ｂａｌａｎｃｉｎｇ ｉｓ ａ ｎｅｗ ｂａｌａｎｃｉｎｇ ｐｒｏｃｅｄｕｒｅ ｗｈｉｃｈ ｉｓ ｍｏｒｅ ｃｏｎｖｅｎｉｅｎｔ ａｎｄ ｐｒｅｃｉｓｅ ｔｈａｎ ｔｈｅ ｐｒｅｖｉｏｕｓ ｍｅｔｈｏｄｓ．Ｉｎ ｔｈｉｓ ｐａｐｅｒ，ａｎ ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ ｂａｌａｎｃｅｒ ｂａｓｅｄ ｏｎ ｒｉｎｇ ｃｏｉｌｓ ａｎｄ ｐｅｒｍａｎｅｎｔ ｍａｇｎｅｔｓ ｉｓ ｐｒｅｓｅｎｔｅｄ．Ｔｈｅ ｂａｌａｎｃｅｒ ｈａｓ ａ ｓｉｍｐｌｅ ｓｔｒｕｃｔｕｒｅ ａｎｄ ｔｈｅ ｓｅｌｆ－ｌｏｃｋｉｎｇ ｆｕｎｃｔｉｏｎ ｗｉｔｈｏｕｔ ｃｌｕｔｃｈ，ａｎｄ ｔｒａｎｓｆｅｒｓ ｐｏｗｅｒｂｙｔｈｅｎｏｎ－ｃｏｎｔａｃｔ ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃｆｉｅｌｄ．Ｉｎｏｒｄｅｒｔｏｊｕｓｔｉｆｙｔｈｅ ｒａｔｉｏｎａｌｉｔｙ ｏｆｉｔｓｄｅｓｉｇｎ，ａｔｗｏ—ｄｉｍｅｎｓｉｏｎ（２Ｄ） ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ ｆｉｎｉｔｅ ｅｌｅｍｅｎｔ ｍｏｄｅｌ ｉｓ ｃｏｎｄｕｃｔｅｄ ｔｏ ｖｅｒｉｆｙ ｔｈａｔ ｔｈｉｓ ｍａｇｎｅｔｉｃ ｃｉｒｃｕｉｔ ｈａｓ ｎｏ ｆｌｕｘ ｌｅａｋａｇｅ ａｎｄ ｓａｔｕ－ ｒａｔｉｏｎ．Ａ ｔｈｒｅｅ—ｄｉｍｅｎｓｉｏｎ ｆ３Ｄ１ １／１０ ｍｏｄｅｌ ｏｆ ｔｈｅ ｂａｌａｎｃｅｒ ｉｓ ｂｕｉｌｔ ｔｏ ｏｂｔａｉｎ ｔｈｅ ｓｅｌｆ－１ｏｃｋｉｎｇ ｔｏｒｑｕｅ ａｎｄ ｄｒｉｖｉｎｇ ｔｏｒｑｕｅ．Ｂａｓｅｄ ｏｎ ｔｈｅ ｒｅｓｅａｒｃｈ ｗｏｒｋ ａｂｏｖｅ，ａｎ ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ ｂａｌａｎｃｅｒ ｉｓ ｄｅｖｅｌｏｐｅｄ．Ｂｙ ｔｅｓｔｉｎｇ ｔｈｅ ｂａｌａｎｃｅｒ ｕｓｉｎｇ Ｃ０Ｃ０８０．ｉｔ ｉｓ ｖｅｒｉｆｉｅｄ ｅｆｆｅｃｔｉｖｅ ｔｏ ｒｅｄｕｃｅ ｔｈｅ ｒｏｔｏｒ ｕｎｂａｌａｎｃｅ ａｔ ｔｈｅ ｓｐｅｅｄ ｏｆ １ ３００ ｒ／ｍｉｎ． Ｋｅｙ ｗｏｒｄｓ：ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ ｂａｌａｎｃｅｒ；ｍａｇｎｅｔｉｃ ｃｉｒｃｕｉｔ；ｓｅｌｆ－ｌｏｃｋｉｎｇ；ｄｒｉｖｉｎｇ
１ Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｍａｓｓ ｕｎｂａｌａｎｃｅ ｉｓ ａ ｍａｊｏｒ ｓｏｕｒｃｅ ｏｆｈａｒｍｆｕｌ ｖｉｂｒａ— ｔｉｏｎ ｆｏｒ ｍａｎｙ ｒｏｔａｔｉｎｇ ｍａｃｈｉｎｅｓ．Ｄｙｎａｍｉｃ ｂａｌａｎｃｉｎｇ ｉｎｃｌｕｄｉｎｇ ｏｆｆ－ｌｉｎｅ ｂａｌａｎｃｉｎｇ ａｎｄ ｏｎ—ｌｉｎｅ ｂａｌａｎｃｉｎｇ ｉｓ ａｎ ｅｆｆｅｃｔｉｖｅ ｍｅｔｈｏｄ ｔｏ ｒｅｄｕｃｅ ｔｈｅ ｕｎｂａｌａｎｃｅ ｖｉｂｒａｔｉｏｎ．Ｔｈｅ ｏｆｆ－ｌｉｎｅ ｂａｌａｎｃｉｎｇ ｃａｎｎｏｔ ｂｅ ｕｓｅｄ ｔｏ ｓｏｌｖｅ ｔｈｅ ｕｎｂａｌａｎｃｅ ｐｒｏｂｌｅｍｓ ｄｕｅ ｔｏ ｔｈｅ ａｂｒａｓｉｖｅ ｗｅａｒ ｏｆ ｅｌｅｍｅｎｔｓ，ｒｏｔｏｒ ｓｈａｆｔ ｂｅｎｄｉｎｇ ｄｅｆｌｅｃｔｉｏｎ ａｎｄ ｂｅａｔｉｎｇ ｓｔｉｆｆｎｅｓｓ ｖａｒｉａ－ ｔｉｏｎｓ．ｅｔｃ．Ｈｏｗｅｖｅｒ．ｔｈｅ ｏｎ．１ｉｎｅ ａｃｔｉｖｅ ｂａｌａｎｃｉｎｇ ｗｉｔｈ— ｏｕｔ ｄｏｗｎ ｔｉｍｅ ｃａｎ ａｕｔｏｍａｔｉｃａｌｌｙ ｃｏｍｐｅｎｓａｔｅ ｍａｓｓ ｕｎｂａｌａｎｃｅ ｄｕｒｉｎｇ ｔｈｅ ｏｐｅｒａｔｉｏｎ ｏｆａ ｍａｃｈｉｎｅ．Ｔｈｅｒｅｆｏｒｅ， ｔｈｅ ｏｎ—ｌｉｎｅ ａｃｔｉｖｅ ｂａｌａｎｃｉｎｇ ｈａｓ ｉｎｃｒｅａｓｉｎｇｌｙ ｂｅｃｏｍｅ ｔｈｅ ｆｉｒｓｔ ａｎｄ ｂｅｓｔ ｃｈｏｉｃｅ ｔｏ ｓｕｐｐｒｅｓｓ ｔｈｅ ｕｎｂａｌａｎｃｅ ｖｉｂｒａｔｉｏｎ． Ｔｈｅ ａｕｔｏｍａｔｉｃ ｂａｌａｎｃｅｒ ｄｅｓｉｇｎ ｉｓ ｏｎｅ Ｏｆ ｔｈｅ ｍｏｓｔ ｉｍｐｏｒｔａｎｔ ｃｈａｌｌｅｎｇｅｓ ｆｏｒ ｏｎ．１ｉｎｅ ａｃｔｉｖｅ ｂａｌａｎｃｉｎｇ ｔｅｃｈ— ｎｏｌｏｇｙ．Ｔｈｅ ｒｏｌｅ ｏｆ ａｎ ａｕｔｏｍａｔｉｃ ｂａｌａｎｃｅｒ ｉｓ ｔｏ ｍｏｖｅ ｂａｌａｎｃｅ ｗｅｉｇｈｔ ｏｎ ａ ｒｏｔａｔｉｎｇ ｓｈａｆｔ．Ｓｏ ｆａｒ，ｔｈｅ ｂａｌａｎｃｉｎｇ ａｃｔｕａｔｏｒｓ ｗｉｄｅｌｙ ｕｓｅｄ ｉｎ ｉｎｄｕｓｔｒｙ ｉｎｃｌｕｄｅ ｄｉｒｅｃｔ ｃｕｒｒｅｎｔ ｓｅｒｖｏｍｏｔｏｒｓ［１－２ ａｎｄ ｌｉｑｕｉｄ ｉｅｔｓ［ ．Ａｋｅｙ ｐｒｏｂｌｅｍ ａｆｆｅｃ— ｒｉｎｇ ｔｈｅ ｒｅｌｉａｂｉｌｉｔｙ ｏｆｓｕｃｈ ｄｅｖｉｃｅｓ ｉｓ ｔｈｅ ｍｅｔｈｏｄ ｔｏ ｔｒａｎｓ— Ｒｅｃｅｉｖｅｄ １０ Ｏｃｔｏｂｅｒ ２０１２ ｆｅｒ ｔｈｅ ｐｏｗｅｒ ｆｒｏｍ ｓｔａｔｏｒ ｔｏ ｒｏｔｏｒ．Ｔｈｅ ｓｌｉｐ ｒｉｎｇ ｏｆ ｄｉｒｅｃｔ ｃｕｒｒｅｎｔ ｆＤＣ１ ｓｅｒｖｏｍｏｔｏｒｓ ｉｓ ｅａｓｉｌｙ ｓｕｂｉｅｃｔ ｔｏ ｗｅａｒ ｉｎ ｌｏｎｇ ｏｐｅｒａｔｉｏｎ，ａｎｄ ｔｈｅｎ ｍｕｓｔ ｂｅ ｍａｎｕａｌｌｙ ｒｅｐｌａｃｅｄ． Ｔｈｅ ａｃｔｕａｔｏｒｓ ｂａｓｅｄ ｏｎ ａ ｌｉｑｕｉｄ ｉｅｔ ｃａｎｎｏｔ ｆｒｅｅｌｙ ｄｉｓ— ｃｈａｒｇｅ １ｉｑｕｉｄ ｗｈｅｎ ａｌｌ ｆｌｕｉｄ ｃｈａｍｂｅｒｓ ａｒｅ ｆｉｌｌｅｄ ｏｕｔ． Ｔｈｅ ｍａｇｎｅｔｉｃ ｂａｌａｎｃｉｎｇ ａｃｔｕａｔｏｒ ｉｓ ａ ｋｉｎｄ ｏｆ ｂａｌａｎｃｅｒ ｗｉｄｅｌｙ ｓｔｕｄｉｅｄ ｎｏｗａｄａｙｓ．Ｔｈｅ ｍａｇｎｅｔｉｃ ｂａｌａｎｃｅｒｓ ｔｒａｎｓｆｅｒ ｔｈｅ ｐｏｗｅｒ ａｃｒｏｓｓ ｔｈｅ ａｉｒ ｇａＤｓ ｉｎ ｔｈｅ ｆｏｒｍ ｏｆ ｍａｇｎｅｔｉｃ ｆｉｅｌｄ．Ｔｈｅ ｂａｌａｎｃｅｒ ｐｒｅｓｅｎｔｅｄ ｉｎ Ｒｅｆ．［５１ ｒｅａｌｉｚｅｓ ｓｅｌｆ－ｌｏｃｋｉｎｇ ｗｈｅｎ ｎｏ ｕｎｂａｌａｎｃｅ ｏｃｃｕｒｓ ｕｓｉｎｇ ａ ｆｒｉｃｔｉｏｎ ｃｌｕｔｃｈ．Ｒｅｆｉ［６】ｐｒｏｐｏｓｅｄ ａ ｂｅａｅｒ ｓｔｒｕｃ・ ｔｕｒｅ ｂｙ ｌａｙｉｎｇ ｏｕｔ ｓｏｍｅ ｃｙｌｉｎｄｒｉｃａｌ ｏｒ ｓｐｈｅｒｉｃａｌ ｐｅｒｍａ— ｎｅｎｔ ｍａｇｎｅｔｓ ｉｎ ｔｈｅ ｃｏｕｎｔｅｒｗｅｉｇｈｔ ｈｏｌｅｓ ｏｒ ｇｒｏｏｖｅｓ ｔｏ ｒｅａｌｉｚｅ ａ ｓｉｍｐｌｅｒ ａｎｄ ｍｏｒｅ ｒｅｌｉａｂｌｅ ｓｅｌｆ－ｌｏｃｋｉｎｇ ａｎｄ ｏｐ． ｅｒａｔｉｎｇ ｔｈａｎ ｔｈｅ ｄｅＶｉｃｅ ｐｒｏｐｏｓｅｄ ｉｎ Ｒｅｆ．［５］． Ｔｈｉｓ ｐａｐｅｒ ｄｅｓｉｇｎｓ ａｎ ａｃｔｉｖｅ ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ ｂａｌａｎｃｅｒ ａｎｄ ｐｒｅｓｅｎｔｓ ｉｔｓ ｓｔｒｕｃｔｕｒｅ ａｎｄ ｏｐｅｒａｔｉｏｎ ｐｒｉｎ． ｃｉｐｌｅ．Ｔｈｅｎ，ｔｈｅ ｎｕｍｅｒｉｃａｌ ｓｉｍｕｌａｔｉｏｎｓ ｏｆ ｔｈｅ ｂａｌａｎｃｅｒ ａｒｅ ｃｏｎｄｕｃｔｅｄ。ａｎｄ ｓｅｖｅｒａｌ ｋｅｙ ｄｅｓｉｇｎ ｐａｒａｍｅｔｅｒｓ ａｒｅ ｄｅｔｅｒｍｉｎｅｄ．Ｆｉｎａｌｌｙ，ｔｈｅ ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ ｂａｌａｎｃｅｒ ｐｒｏ． ｔｏｔｙｐｅ ｉｓ ｄｅｖｅｌｏｐｅｄ，ｔｅｓｔｅｄ ａｎｄ ｖｅｒｉｆｉｅｄ．
Ｖｏ１．１１ Ｎｏ．１，Ｆｅｂ．２０１３ ３５ ｔｈｅ ｃｏｕｎｔｅｒｗｅｉｇｈｔ ｒｏｔｏｒ ａｎｄ ｔｈｅ ｓｔａｔｏｒ ｃｏｉｌ ａｒｅ ｉｎ仃。一 ｄｕｃｅｄ ｉｎ ｄｅｔａｉｌ． ２）Ｔｈｅ ｍａｇｎｅｔｉｃ ｃｉｒｃｕｉｔ ａｎｄ ｔｏｒｑｕｅ ｉｎ ｔｈｅ ｓｅｌｆ－ ｌｏｃｋｉｎｇ ａｎｄ ｄｒｉｖｉｎｇ ｃｏｎｄｉｔｉｏｎｓ ａｒｅ ｏｂｔａｉｎｅｄ ｕｓｉｎｇ Ａｎ— ｓｏｆｔ Ｍａｘｗｅｌ１．ｗｈｉｃｈ ｐｒｏｖｅｓ ｔｈａｔ ｔｈｅ ｐｒｉｎｃｉｐｌｅ ｏｆ ｔｈｅ ｄｅｓｉｇｎｅｄ ｂａｌａｎｃｅｒ ｉｓ ｆｅａｓｉｂｌｅ． ３、Ｔｈｅ ｅｘｐｅｒｉｍｅｎｔａｌ ｐｌａｔｆｏｒｍ ａｎｄ ｔｈｅ ｔｅｓｔｉｎｇ ｓｙｓｔｅｍ ｆｏｒ ｔｈｅ ｅｌｅｃｔｒｏｍａｇｎｅｔｉｃ ｂａｌａｎｃｅｒ ａｒｅ ｓｅｔ ｕｐ， ａｎｄ ｔｈｅ ｖｉｂｒａｔｉｏｎ ｓｉｇｎａｌｓ ｏｆ ｔｈｅ ｂｅａｒｉｎｇ ｉｎ ｄｉｆｆｅｒｅｎｔ ｕｎｂａｌａｎｃｅ ｍａｓｓｅｓ ｏｆ ｔｈｅ ｂａｌａｎｃｅｒ ａｒｅ ｏｂｔａｉｎｅｄ．Ｔｈｅ ｅｘｐｅｒｉｍｅｎｔａｌ ｃｕｒｖｅ ｐｒｏｖｅｓ ｔｈａｔ ｔｈｅ ｂａｌａｎｃｅｒ ｃａｎ ｇｅｔ ｔｈｅ ｄｅｓｉｒｅｄ ｖｉｂｒａｔｉｏｎ ｏｆ ｔｈｅ ｓｈａｆｔ．
Ｒｅｆｅｒｅｎｃｅｓ ［１］ＶａｎｄｅＶｅｇｔｅ ＪＪ Ｃｏｎｔｉｎｕｏｕｓａｕｔｏｍａｔｉｃｂａｌａｎｃｉｎｇｏｆｒｏｔａｔｉｎｇ ｓｙｓｔｅｍｓ
［Ｊｌ Ｊｏｕｒｎａｌ ｏｆＭｅｃｈａｎｉｃａｌ Ｅｎｇｉｎｅｅｒｉｎｇ Ｓｃｉｅｎｃｅ，１９６４，６（３）：２６４ ２６９ ［２］Ｖａｎ ｄｅ Ｖｅｇｔｅ Ｊ，Ｌａｋｅ Ｒ Ｔ．Ｂａｌａｎｃｉｎｇ ｏｆ ｒｏｔａｔｉｎｇ ｓｙｓｔｅｍｓ ｄｕｒｉｎｇ ｏｐｅｒａｔｉｏｎ［Ｊ］．Ｊｏｕｒｎａｌ ｏｆ Ｓｏｕｎｄ ａｎｄ Ｖｉｂｒａｔｉｏｎ，１９７８，５７（２）：２２５— ２３５ ［３］Ｈｅ Ｓｈｉｚｈｅｎｇ．Ｓｔｕｄｙ ｏｆ ｌｉｑｕｉｄ ｒｅｌｅａｓｅ ａｕｔｏ—ｂａｌａｎｃｉｎｇ ｈｅａｄ［Ｊ］． Ｊｏｕｒｎａｌ ｏｆ Ｚｈｅｊｉａｎｇ Ｕｎｉｖｅｒｓｉｔｙ（Ｅｎｇｉｎｅｅｒｉｎｇ Ｓｃｉｅｎｃｅ），２００１，３５ （４）：７０－７４． 【４］Ｚｈｏｕ Ｂａｏｔａｎｇ，Ｈｅ Ｓｈｉｚｈｅｎｇ，Ｗａｎｇ Ｙｕ．Ｓｔｕｄｙ ｏｎ ｂａｌａｎｃｅｒ ｆｏｒ ｏｎ— ｌｉｎｅ ａｕｔｏｍａｔｉｃ ｄｙｎａｍｉｃ ｂａｌａｎｃｉｎｇ［Ｊ］．Ｐｅｔｒｏ—Ｃｈｅｍｉｃａｌ Ｅｑｕｉｐｍｅｎｔ Ｔｅｃｈｎｏｌｏｇｙ，１９９４（３）：４２—４５． ［５］Ｇｅ Ｚｈｅｘｕｅ，Ｔａｏ Ｌｉｍｉｎ．Ｓｔｕｄｙ ｏｎ ａ ｎｅｗ ｅｌｅｃｔｒｏｍａｇｎｉｔｉｃ ａｕｔｏｍａｔｉｃ— ｂａｌａｎｃｉｎｇ ｉｎｓｔｒｕｍｅｎｔ［Ｊ］．Ｍａｃｈｉｎｅｒｙ，２００ １，２８（６）：６２—６４． ［６］Ｍｏｏｎ Ｊｏｎｇ Ｄｕｋ，Ｋｉｍ Ｂｏｎｇ—Ｓｕｋ，Ｌｅｅ Ｓｏｏ—Ｈｕｎ．Ｄｅｖｅｌｏｐｍｅｎｔ ｏｆ ｔｈｅ ａｃｔｉｖｅ ｂａｌａｎｃｉｎｇ ｄｅｖｉｃｅ ｆｏｒ ｈｉｇｈ—ｓｐｅｅｄ ｓｐｉｎｄｌｅ ｓｙｓｔｅｍ ｕｓｉｎｇ ｉｎｆｌｕｅｎｃｅ ｃｏｅｆｆｉｃｉｅｎｔｓ［Ｊ］．Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｊｏｕｒｎａｌ ｏｆ Ｍａｃｈｉｎｅ Ｔｏｏｌｓ ａｎｄ Ｍａｎｕｆａｃｔｕｒｅ．２００６．４６（９）：９７８—９８７．