超磁致伸缩执行器热误差补偿及抑制方法研究  

Research on methods of thermal error compensating and restraining in giant magnetostrictive actuator

作　　者：邬义杰[1] 徐杰[1] 

机构地区：[1]浙江大学现代制造工程研究所,浙江杭州310027

出　　处：《工程设计学报》2005年第4期213-218,共6页Chinese Journal of Engineering Design

基　　金：国家自然科学基金资助项目(50275134);浙江省自然科学基金资助项目(Y104243).

摘　　要：超磁致伸缩执行器是典型的物性型现代执行器,在精密、超精密加工领域有着广阔的应用前景.对超磁致伸缩执行器的热误差实施有效的补偿或抑制等措施,可以消除或抑制由于温升带来的不利影响,提高执行器的输出精度,这是超磁致伸缩执行器的关键技术之一.针对这一问题,提出了6种热误差补偿及抑制方法,并介绍了这些方法的实现原理,分析了它们的特点及适用场合,同时,对自行研制的相变水冷组合温控系统进行了试验,取得满意的效果.提出的热误差补偿与抑制方法可用于指导各种场合的超磁致伸缩执行器的研究和开发.As a typical modern physical property actuator, giant magnetostrictive actuator （GMA） has a wide application prospect in the fields of precision and ultra-precision machining. This method, as a key technology of GMA, could eliminating or restraining adverse influence triggered by rise of temperature and improve GMA＇s output precision by taking measure of compensating or restraining thermal error of GMA. Aiming at this problem, six methods for thermal error compensation and restraining is presented. Principles of these methods were introduced as well as characteristics and application situations. Meantime, a series of experiments using our phase changing water cooling combination temperature control system are conducted and satisfactory results are obtained. The results demonstrate that the proposed theorems and method can effectively direct research and design of GMA in various situations.

关 键 词：超磁致伸缩执行器 热误差补偿 抑制方法 超精密加工 不利影响 输出精度 关键技术 实现原理 适用场合 

分 类 号：TP215[自动化与计算机技术—检测技术与自动化装置] TG659[自动化与计算机技术—控制科学与工程]