Modeling and performance evaluation of 2DOF spherical traveling-wave type ultrasonic motor
Modeling and performance evaluation of 2DOF spherical traveling-wave type ultrasonic motor
复制标题
2DOF球形行波型超声电机建模与性能评估
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Runjie Shen
中科院分区：
文献类型：
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作者：
Xixing Hu;Jifeng Guo;Runjie Shen
本研究旨在探讨二自由度行波超音波马达之性能评估。简要介绍了2DOF-USM的空间结构。基于摩擦传动机理建立了电机的数学模型。通过空间位置关系，计算出接触区任意点处的驱动力和摩擦力，推导出机械特性的解析表达式。通过仿真分析了模型参数对电机特性的影响。通过仿真结果与实验结果的对比，验证了该模型的有效性。本文为球面行波型超声马达的良好性能和下一步的轨迹控制奠定了理论基础。所研制的电机最大输出转矩达到0.10 Nm，最高转速为90 rpm。
The objective of our research is to investigate the performance evaluation of traveling-wave ultrasonic motor with two-degree of freedom (2DOF-USM). The space structure of 2DOF-USM is introduced briefly. The mathematic model of the motor is established based on friction drive mechanism. Through relation of space location, calculating the driving force and friction force at arbitrary point of contact area, the analytical expressions of the mechanical characteristics are deduced. The influence of model parameter on motor characteristics is presented through simulation. The validity of the model is verified by means of comparing the simulation results and the experimental ones. This article lays a theoretical foundation for spherical traveling-wave type ultrasonic motorpsilas well performance and trajectory control next step. The maximum output torque of developed motor reaches 0.10 Nmiddotm, the maximum speed is 90 rpm.