Time-varying tool influence function model of bonnet polishing for aspheric surfaces.
Time-varying tool influence function model of bonnet polishing for aspheric surfaces.
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DOI：
10.1364/ao.58.001101
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发表时间：
2019-02
期刊：
影响因子：
1.9
通讯作者：
Bo Zhong;Chunjin Wang;Xianhua Chen;Jian Wang
中科院分区：
文献类型：
--
作者：
Bo Zhong;Chunjin Wang;Xianhua Chen;Jian Wang
对于非球面气囊抛光，由于非球面表面曲率的不同，刀具影响函数（TIF）不可避免地是时变的。在此基础上，研究了曲面曲率对阀盖-工件接触面积的影响，建立了时变TIF模型。基于有限元分析和运动学分析方法建立了时变TIF模型，并通过实验进行了验证。实验结果与理论计算结果吻合较好。该方法可以预测非球面不同抛光位置的TIF，为非球面抛光的动态补偿提供理论依据。
For bonnet polishing of an aspheric surface, the tool influence function (TIF) is inevitably time varying, induced by the different surface curvatures on the aspheric surface. Accordingly, this paper investigated how the surface curvature affects the bonnet-workpiece contact area, and then presented a time-varying TIF model. The time-varying TIF was modeled based on the finite element analysis and kinematics analysis methods, and validated by experiments. The experimental results exhibited good agreement with the theoretical results. The proposed method can forecast the TIF for different polishing positions on aspheric surfaces, and provide the theoretical foundation for dynamic compensation of aspheric surface polishing.