粘滑驱动式小型运动平台的动力学分析
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南京航空航天大学研究生创新基地(实验室)开放基金资助项目(kfjj20160102); 航空科学基金资助项目(2016ZA52014)

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Dynamics Analysis of Stickslip Driving Miniature Motion Platform
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    摘要:

    为解决微纳操作中驱动技术方面的问题,该文研制了一种粘滑驱动式小型运动平台;基于已构建的平台结构,继而建立了粘滑驱动系统动力学模型。该动力学模型在引入LuGre摩擦模型的基础上,分别对压电叠堆的电学模型、驱传动系统机械动力学模型进行建模,最终得到统一的粘滑驱动系统模型,并利用Matlab/Simulink对模型进行仿真及分析。分析结果表明,平台位移随着预压力增大而减小,而随着移动台质量的增大而增大。最终经过实验结果与仿真数据对比可知两者基本一致,验证了该模型的准确性。

    Abstract:

    In order to solve the problem of driving technology in micronano operation, a stickslip driving miniature motion platform has been developed in this paper. Based on the constructed platform structure, the dynamic model of the stickslip driving system has been established. The electric model of the piezoelectric stack and the mechanical dynamic model of the driving and transmission system are modeled respectively on the basis of introducing the LuGre friction model into the dynamics model. Finally, a unified stickslip driving system model has been obtained and the simulation and analysis of the model have been carried out by using the Matlab/Simulink. The analysis results show that the displacement of the platform decreases with the increase of the pressure, and increases with the increase of the mass of the mobile station. Finally, after comparing the experimental results with the simulation data, the two are basically the same, which verifies the accuracy of the model.

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娄成树,时运来,张军,程丁继.粘滑驱动式小型运动平台的动力学分析[J].压电与声光,2018,40(5):715-719. LOU Chengshu, SHI Yunlai, ZHANG Jun, CHENG Dingji. Dynamics Analysis of Stickslip Driving Miniature Motion Platform[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

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  • 在线发布日期: 2018-10-16
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