| 金属橡胶材料宏观和细观力学模型 |
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| 引用本文： | 李宇明,彭威,白鸿柏,郑坚.金属橡胶材料宏观和细观力学模型[J].机械工程学报,2005,41(9):38-41. |
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| 作者姓名： | 李宇明 彭威 白鸿柏 郑坚 |
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| 作者单位： | 军械工程学院火炮工程系,石家庄,050003;军械工程学院火炮工程系,石家庄,050003;军械工程学院火炮工程系,石家庄,050003;军械工程学院火炮工程系,石家庄,050003 |
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| 基金项目： | 国家自然科学基金资助项目(50105021)。 |
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| 摘 要： | 用等效粘性阻尼理论和试验相结合，建立金属橡胶材料动态模型，把复杂的金属橡胶材料的阻尼耗能机理等效为粘性阻尼，金属橡胶的恢复力由高阶非线性多项式和等效的粘性阻尼力叠加而成；为了进一步研究刚度系数，从金属橡胶的变形特征出发，推导出金属橡胶材料应力应变关系的细观力学模型，通过试验对所建模型进行验证，结果表明：模型能很好描述金属橡胶材料在非线性振动系统的特性，模型中的参数值，对于研究金属橡胶材料的动态特性，具有重要的参考价值。
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| 关 键 词： | 金属橡胶 粘性阻尼 力学模型 应力应变 滞后曲线 |
| 修稿时间： | 2004年9月14日 |
MECHANICAL MODEL OF METAL RUBBER MATERIAL IN MACRO AND MICRO LEVEL |
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| Li Yuming,Peng Wei,Bai Hongbai,Zheng Jian.MECHANICAL MODEL OF METAL RUBBER MATERIAL IN MACRO AND MICRO LEVEL[J].Chinese Journal of Mechanical Engineering,2005,41(9):38-41. |
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| Authors: | Li Yuming Peng Wei Bai Hongbai Zheng Jian |
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| Affiliation: | Ordnance Engineering University Artillery Department |
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| Abstract: | The dynamical model of metal rubber material is established by using the equivalent viscous damping theory and experiment. In this way the complex damping mechanism of the metal rubber material can be equaled to the viscous damping. The resuming force of metal-rubber is overlapped by the high step and nonlinear polynomial which had equivalent viscous damping force. In order to study the rigidity coefficient, considering the distortion character of metal rubber material, the stress and strain model is concluded. At last in the test it can be validated that the two models are very good to describe the nonlinear vibration systematic property. The parameters in model are worth for studying the dynamical property of metal rubber material. |
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| Keywords: | Metal rubber Viscous damping Mechanical model Stress and strain Hysteresis loop |
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