| RESEARCH ON MODELING AND CHARACTERISTICS OF THE SPINDLE DYNAMIC COUPLING ABSORBERING SYSTEM OF A SUPER－PRECISION SURFACE GRINDING MACHINE |
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| 作者姓名： | Yang Zhiyong
Zhang Dawei
Huang Tian
School of Mechanical Engineering Tianjin University Tianjin China
Gao Yongsheng |
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| 作者单位： | Yang Zhiyong
Zhang Dawei
Huang Tian
School of Mechanical Engineering，Tianjin University，Tianjin 300072，China
Gao Yongsheng
Department of Mechanical Engineering，Hong Kong University of Science
and Technology，Hong Hong，China |
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| 基金项目： | This project is supported by Provincial Natural Science Foundation of hianjin, China (NO.99380261l) |
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| 摘 要： | The bearing is described by constrain matrix, and the spindle system of a NC surface grinding machine is simplified as elastic-coupling beam, then modal synthesis method is used to establish the dynamic model of beam. Moreover, the response of the end of rotor is analyzed, and the natural frequency, principle mode and other dynamic characteristics of the coupling system are studied, the law of bearing stiffness to coupling frequency and amplitude of rotor is also found. Finally, according to the actual condition, a dynamic absorber is designed. The simulation and experimental results show that the amplitude of spindle can be declined effectively when the dynamic absorber is attached.
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| 关 键 词： | 平面磨床 耦合减震系统 转子动力学 特征造型 精度 |
RESEARCH ON MODELING AND CHARACTERISTICS OF THE SPINDLE DYNAMIC COUPLING ABSORBERING SYSTEM OF A SUPER-PRECISION SURFACE GRINDING MACHINE |
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| Yang Zhiyong
Zhang Dawei
Huang Tian
School of Mechanical Engineering,Tianjin University,Tianjin ,China
Gao Yongsheng.RESEARCH ON MODELING AND CHARACTERISTICS OF THE SPINDLE DYNAMIC COUPLING ABSORBERING SYSTEM OF A SUPER-PRECISION SURFACE GRINDING MACHINE[J].Chinese Journal of Mechanical Engineering,2003,16(2):213-216. |
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| Authors: | YangZhiyong ZhangDawei HuangTian GaoYongsheng |
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| Affiliation: | [1]SchoolofMechanicalEngneenng,TianjinUniversity,Tianjin300072,China [2]DepartmentofMechanicalEngineering,HongKongUniversityofScienceandTechnology,HongHong,China |
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| Abstract: | The bearing is described by constrain matrix, and the spindle system of a NC surface grinding machine is simplified as elastic-coupling beam, then modal synthesis method is used to establish the dynamic model of beam. Moreover, the response of the end of rotor is analyzed, and the natural frequency, principle mode and other dynamic characteristics of the coupling system are studied, the law of bearing stiffness to coupling frequency and amplitude of rotor is also found. Finally, according to the actual condition, a dynamic absorber is designed. The simulation and experimental results show that the amplitude of spindle can be declined effectively when the dynamic absorber is attached. |
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| Keywords: | Surface grinding machine Coupling system Principal mode Rotor bearing system |
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