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The motorised spindle optimisation design of NC machine tool based on finite element method

机译:基于有限元方法的数控机床电主轴优化设计

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The motorised spindle is one of the most important parts of modern machine toots. Its deformation and vibration directly influence machining precision, surface quality and productivity. In this paper, the significance of spindle optimisation is analysed and optimisation method based on finite element is introduced. The spindle model of HTC3250un NC machine tool is established using software ANSYS. The design variables, state variables and objective functions are given. The main optimised variables are obtained by variables scanning. The single objective and multi-objective optimisations are done and the main size comparison of spindle before and after optimisation is given. In the end, the optimised spindle model is established and corresponding performance analysis is done. The result of evaluation indicates that spindle parameters obtained by optimisation design are satisfactory.
机译:电动主轴是现代机器嘟嘟声中最重要的部分之一。其变形和振动直接影响加工精度,表面质量和生产率。分析了主轴优化的意义,介绍了基于有限元的优化方法。使用软件ANSYS建立了HTC3250un数控机床的主轴模型。给出了设计变量,状态变量和目标函数。通过变量扫描获得主要的优化变量。完成了单目标和多目标优化,并给出了优化前后主轴的主要尺寸比较。最后,建立了优化的主轴模型,并进行了相应的性能分析。评估结果表明,通过优化设计获得的主轴参数令人满意。

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