| 时变主轴转速再生切削系统的动态响应特征 |
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| 引用本文： | 周晓勤,孔繁森,王文才,于骏一.时变主轴转速再生切削系统的动态响应特征[J].振动与冲击,2008,27(12). |
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| 作者姓名： | 周晓勤 孔繁森 王文才 于骏一 |
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| 作者单位： | 1. 吉林大学,机械科学与工程学院,长春,130022
2. 密西根大学安娜堡分校,机械工程系,安娜堡,MI,48109-2136 |
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| 基金项目： | 国家自然科学基金资助项目
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教育部博士点基金资助项目
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| 摘 要： | 考虑多重再生切削效应,建立了在时变主轴转速下再生切削系统的时滞动力学模型及递推求解算法,该算法适用于主轴转速变化的任意轨迹.将再生切削系统相继两转的动态响应作为观测数据,提出了基于互四阶累积量的谐参数联合估计的TLS-ESPRIT方法.根据该方法,研究了时变主轴转速对再生切削系统动态响应的影响,揭示了再生切削系统动态响应的频率、相继两转切削间的相移和互功率等谐参数对主轴转速依赖的一些新特征.
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| 关 键 词： | 机床 再生型切削 时变主轴转速 互高阶累积量 |
DYNAMIC RESPONSE BEHAVIORS OF REGENERATIVE MACHINING SYSTEM WITH TIME-VARIANT ROTATIONAL SPEED OF SPINDLE |
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| ZHOU Xiao-qin,KONG Fan-sen,WANG Wen-cai,YU Jun-yi.DYNAMIC RESPONSE BEHAVIORS OF REGENERATIVE MACHINING SYSTEM WITH TIME-VARIANT ROTATIONAL SPEED OF SPINDLE[J].Journal of Vibration and Shock,2008,27(12). |
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| Authors: | ZHOU Xiao-qin KONG Fan-sen WANG Wen-cai YU Jun-yi |
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| Affiliation: | ZHOU Xiao-qin1,KONG Fan-sen,WANG Wen-cai2,YU Jun-yi1(1.College of Mechanical Science , Engineering,Jilin University,Changchun 130022,China,2.Dept.of Mechanical Engineering,University of Michigan,Ann Arbor,MI 48109-2136,USA) |
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| Abstract: | The multiple-regenerative cutting effect was taken into consideration to model the delay-dynamics of regenerative machining system with time variant rotational speed of spindle,and the recursive algorithm for solution to the delayed machining dynamics was presented,which is adapted to the arbitrary trajectories of spindle speed variation.The dynamic responses under the two successive cuts were sampled as the observation data.Based on cross fourth-order cumulants,a TLS-ESPRIT approach to jointly estimating h... |
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| Keywords: | machine tool regenerative machining time-variant spindle speed cross high-order cumulants |
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