中国机械工程

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机电集成形状记忆合金活齿传动装置受力分析

柴宗兴;许立忠   

  1. 燕山大学机械工程学院,秦皇岛,066004
  • 出版日期:2017-10-10 发布日期:2017-10-10
  • 基金资助:
    2017学年燕山大学硕士研究生创新项目(2017XJSS012)

Force Analysis of the Movable Teeth Transmission Integrated with SMAs

CHAI Zongxing;XU Lizhong   

  1. School of Mechanical Engineering, Yanshan University, Qinhuangdao, Hebei,066004
  • Online:2017-10-10 Published:2017-10-10

摘要: 为了研究机电集成形状记忆合金(SMA)活齿传动装置的受力规律,采用电流直接加热方式并基于Brinson的一维本构模型,推导出装置中SMA的驱动方程;通过活齿传动装置受力分析,建立了装置的耦合力学方程,绘出了装置参数变化时活齿受力随输出轴转角变化曲线和不同输入电流下输出特性曲线,得到了装置参数变化对活齿受力的影响规律和输入电流对装置输出特性的影响规律。研究结果为装置的进一步优化和动力学研究提供了参考,为样机的制作和试验提供了依据。

关键词: 形状记忆合金, 活齿传动, 多场耦合, 受力分析, 输出特性

Abstract: In order to study the force laws of a movable teeth transmission integrated with SMAs, using direct current heating method and one-dimensional constitutive model of Brinson ,the driving equations of the SMA in the transmission were derived. Through the force analysis of the movable gear transmission, the coupling force equations of the transmission were established. The force curves of the movable tooth with the output shaft angles were plotted when the device parameters were changed,and the output curves were plotted under different input currents. The influences of the parameters on the force in the the movable tooth and the output curve under the input current were obtained.The results provide a theoretical basis for the further optimization and dynamics of the system, and provide the basis for the prototype manufactures and tests.

Key words: shape memory alloy (SMA), movable teeth transmission, many field coupling, force analysis, output characteristics

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