【作者】 高文泉；

【导师】 朱林剑；

【作者基本信息】 大连理工大学 ， 机械设计及理论， 2009， 硕士

【摘要】 稀土超磁致伸缩材料(GMM)是一种新型功能材料,具有磁致伸缩系数大、能量密度高、机电耦合系数大、响应速度快、输出力大等优点,可以实现电、磁能与机械能之间的转换,其机电转换性能非常优异,为此它的开发与应用得到世界各国学者的关注,产量及市场销量增长非常迅速。基于其正磁致伸缩效应制作的超磁致伸缩驱动器(GMA)具有广阔的应用前景,是一类很有潜力的新型微位移驱动器.针对传统超磁致伸缩电机由于采用摩擦传动,降低了电机的使用寿命、工作效率以及精度等问题,本文结合谐波齿轮传动的工作原理和超磁致伸缩材料的磁致伸缩性能,设计出了一种新型传动装置一超磁致伸缩谐波电机。其原理就是利用超磁致伸缩驱动器以取代谐波齿轮传动机构中的传统波发生器,并最终以谐波齿轮传动的方式输出力与力矩。由于谐波齿轮传动具有高性能、低噪声、大速比及体积小等特点,这种超磁致伸缩谐波电机较传统超磁致伸缩电机的工作性能和可控制性能更加优越。本文在以下几个方面开展了研究工作:(1)分析谐波齿轮传动的工作原理,较为充分地掌握了超磁致伸缩材料的基本性能。(2)研究设计了超磁致伸缩谐波电机的基本结构。本文结合谐波齿轮传动的工作原理和超磁致伸缩材料的性能,设计了超磁致伸缩谐波电机,包括电机工作原理分析、基本结构设计及超磁致伸缩驱动器的设计。(3)设计了超磁致伸缩谐波电机控制系统方案。主要包括控制原理分析和控制方案设计,并对超磁致伸缩驱动器的控制策略作了进一步说明。(4)对超磁致伸缩驱动器进行了实验研究。包括位移特性实验和输出力测定实验的分析,以验证超磁致伸缩驱动器设计的合理性以及将超磁致伸缩材料应用到谐波齿轮传动上的可行性。更多还原

【Abstract】 The Giant Magnetostrictive Material (GMM) is a new type of function materials. Due to its giant magnetostrictive strain, high power density, high electromechanical coupling coefficient, high response speed and high force output, it can realize conversion among electricity, magnetism and mechanism, and its performance of electromechanical conversion is very excellent. Because of its excellent properties and promising application foreground, scientists all over the world are interested in it. The Giant Magnetostrictive Actuator (GMA) based on positive magnetostrictive effect has a broad application prospect.Because traditional giant magnetostrictive motors are driven by friction, which reduces the using life, work efficiency and precision of the motors, the paper presents a new type drive device—giant magnetostrictive harmonic motor. The harmonic motor combines principle of harmonic drive and magnetostrictive performance of GMM, and outputs force and displacement by harmonic drive. Because of some characteristics of harmonic drive, such as high performance, low yawp, big velocity ratio, small volume and so on. This harmonic motor based on GMM has much superiority on work performance and controllable performance comparing with traditional giant magnetostrictive motors.(1) Analysis of the working principle of harmonic drive, and a better known to the basic properties of GMM.(2) Basic structure of giant magnetostrictive harmonic motor is studied and designed. The paper combines principle of harmonic drive and magnetostrictive performance of GMM, and has designed the giant magnetostrictive harmonic motor, which mainly includes the analysis of the working principle, the design of basic structure and the design of GMA.(3) The control system of giant magnetostrictive harmonic motor is designed. It mainly includes the analysis of the control principle, the design of control program, and a further interpretation for control strategy.(4) The experimental study of GMA is carried on. The experiment includes displacement and force properties test for the actuator, in order to verify the rationality of the design of GMA and the feasibility of applying the GMM to the harmonic drive.更多还原