机电集成超磁致驱动系统转矩特性研究  

Torque Characteristics of Electromechanical Integrated Giant Magnetostrictive Material Drive System

作　　者：刘欣[1] 湛晨星 王晓远 LIU Xin;ZHAN Chenxing;WANG Xiaoyuan(Tianjin Key Laboratory of Modern Electromechanical Equipment Technology,Tiangong University,Tianjin 300387,China;School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津工业大学天津市现代机电装备技术重点实验室,天津300387 [2]天津大学电气自动化与信息工程学院,天津300072

出　　处：《北京理工大学学报》2024年第12期1253-1262,共10页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(51875408)。

摘　　要：针对传统驱动系统尺寸大和输出转矩小的问题,提出一种结构紧凑、驱动效率高且能够减速增矩的机电集成超磁致驱动系统.基于该驱动系统的结构原理,由超磁致伸缩材料的本构方程建立了其电磁驱动部分的静力学方程,得到了该驱动部分的输出位移和作用力;根据活齿与动定双盘的驱动关系,建立了活齿在空间的受力模型,由活齿和动盘在传动面内的受力平衡方程得到各活齿受到的力,进而推导出活齿架受力和该集成驱动系统的输出转矩;分析了活齿受力和输出转矩的变化规律,并讨论了驱动电流和关键结构参数对该集成驱动系统输出力矩的影响规律.结果表明,动盘轨道偏心距对输出转矩的影响较大.To solve the problems of large size and small output torque of traditional drive system,an elec-tromechanical integrated giant magnetostrictive material(GMM)drive system was proposed,providing with compact structure,high driving efficiency and torque addition along with speed reducing.Firstly based on the structure and working principle of drive system,the statics-equations of electromagnetic drive part were estab-lished with the constitutive equation of giant magnetostrictive material,obtaining the output displacement and forces of the drive part.Analyzing the driving relationships between oscillating tooth and discs,a spatial force model was established for oscillating tooth,obtaining the received forces of every tooth with the force equations in transmission plane.Then several results were achieved,deriving the forces on oscillating-teeth-holder and out-put torque of the drive system,analyzing the variations of forces on oscillating tooth and the output torque,and discussing the influences of drive current and structural parameters on output torque.The results show that ec-centric distance of moving disc has great influence on output torque of the drive system.

关 键 词：超磁致伸缩 机电集成 电磁驱动 空间受力 输出转矩 

分 类 号：TH122[机械工程—机械设计及理论]