肌电控制假手新型自动变速系统的分析研究  

Research and Analysis of the New Automatic Speed-changing System of the Myoelectric Controlled Prosthetic Hand

作　　者：李晶[1] 邵忍平[1] 申江[1] 黄欣娜[1] 

机构地区：[1]西北工业大学机电学院,陕西西安710072

出　　处：《机械传动》2013年第9期1-5,共5页Journal of Mechanical Transmission

基　　金：国家自然科学基金(No.51275422);西北工业大学研究生创业种子基金(Z2013032)

摘　　要：以肌电控制假手的传动机构为研究对象,提出了肌电控制假手的新型自动变速系统传动方案。考虑传动系统中齿轮副时变啮合刚度,各齿轮的横向、纵向振动及沿啮合线方向振动、中心构件的扭转支撑刚度等建立了新型自动变速系统的传动系统动力学模型,通过轴承将传动系统和结构系统耦合起来,推导建立了"两级行星齿轮-离合器-轴承-外壳体"的肌电控制假手自动变速系统的耦合动力学模型,采用有限元软件中的Lanczons算法分析得到了该系统动力特性,验证了该新型系统传动方案的可行性,从而为肌电控制假手的动态设计和性能分析提供了基础。For the transmission mechanism of myoelectric controlled prosthetic hand as the research abject, the new transmission scheme of auto speed - changing system of myoelectric controlled prosthetic hand is proposed. Con- sidering the time - varying meshing stiffness of gear pair, the transverse, longitudinal vibration and vibration along the meshing line direction of each gear, the torsion - supporting stiffness of center member and so on, the transmission system dynamics model of this new automatic speed - changing system is established. Through the bear, the transmis- sion system and structural system are coupled together and the two - stage planetary gear - clutch - bearing - shell body coupling dynamics model of the myoelectric control prosthetic hand automatic speed - changing system is deduced and established. The Lanczons algorithm of finite element software is used to analysis the dynamic characteristic, which verifies the feasibility of this new system scheme.

关 键 词：肌电控制假手 新型自动变速系统 耦合模型 动力特性有限元 

分 类 号：U463.212[机械工程—车辆工程]