| 新型并联机床的固有特性研究 |
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| 引用本文： | 李兵,王知行.新型并联机床的固有特性研究[J].机械设计,1999,16(9):13-15. |
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| 作者姓名： | 李兵 王知行 |
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| 作者单位： | 哈尔滨工业大学机械工程系!黑龙江哈尔滨150001 |
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| 基金项目： | 黑龙江省科委重大攻关项目 |
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| 摘 要： | 新型并联机是空间多环机构在数控机床不上的应用，本文建立了该机庆的弹性动力学有限元模型，并确定了机床的结构参数种典型的加工轨迹，经过有限元实例计算得到了机床一阶有频率变化曲线，通过对计算结果的分析得出机床固有频率随机床结构参数和刀头姿态变化的规律。本文的研究对在机床设计阶段提高机床的动力学性能具有重要意义。
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| 关 键 词： | 并联机床 固有频率 有限元 |
A study on the natural characteristics of new typed parallel machine tool |
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| Li Bing.A study on the natural characteristics of new typed parallel machine tool[J].Journal of Machine Design,1999,16(9):13-15. |
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| Authors: | Li Bing |
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| Abstract: | The new typed parallel machine tool is an application of spatial multi-loop mechanism in the field of NC machine tool. This paper established the elastic dynamic finite element model and determined the structural parameters of machine tool and several kinds of typical machining traces. The variation curve of first ordered natural frequency for machine tools is obtained through the calculation of living finite element example. By way of analysis on the calculated results the laws that the natural frequency of machine tool changes along with the variation of structural parameter of machine tool and that of the attitude of tool bit are obtained. The study of this paper possesses important significance on enhancing the dynamic characteristics of machine tool during the design stage. |
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| Keywords: | Parallel machine tool Natural frequency Finite element |
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