| Lifetime of metal rubber isolator with different vibration amplitudes |
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| 作者姓名： | 姜洪源 夏宇宏 敖宏瑞 董春芳 A.M.Ulanov |
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| 作者单位： | [1]DepartmentofMachineDesign,HarbinInstituteofTechnology,Harbin150001,China [2]SamaraStateAerospaceUniversity,Samara443086,Russia |
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| 基金项目： | Project(50075017) supported by the National Natural Sceince Foundation of China |
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| 摘 要： | The lifetime of metal rubber isolator and its characteristics during lifetime experiment were studied. The stepped-up test principle was adopted to study the lifetime of resonant frequency, the breakage form of metal rubber isolator was obtained, and the relation between the energy dissipation, resonant frequency and stiffness was obtained in available lifetime of the isolator. Furthermore, the reason for the changes of properties of metal rubber isolator was analyzed with contact model of metal rubber material. The results show that if the resonant amplitude is large, the stiffness of metal rubber isolator will be kept steadily for a long time, its resonant frequency will be stable and the effective working time in the protecting area will be long. The lifetime of metal rubber isolator is more than 1 376 h in the experiment. The main failure forms of metal rubber isolator are accumulative wear and breaking of metal wires and spirals. In protecting area the metal rubber isolator can work effectively for a long time, and the effective working time depends on the concrete working condition.
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| 关 键 词： | 绝缘体 金属橡胶 生存期 振动 |
Lifetime of metal rubber isolator with different vibration amplitudes |
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| JIANG Hong-yuan,Xia Yu-Hong,AO Hong-rui,DONG Chun-fang,A.M.Ulanov.Lifetime of metal rubber isolator with different vibration amplitudes[J].Journal of Central South University of Technology,2005,12(2):181-185. |
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| Authors: | JIANG Hong-yuan Xia Yu-Hong AO Hong-rui DONG Chun-fang AMUlanov |
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| Abstract: | The lifetime of metal rubber isolator and its characteristics during lifetime experiment were studied. The stepped-up test principle was adopted to study the lifetime of resonant frequency, the breakage form of metal rubber isolator was obtained, and the relation between the energy dissipation, resonant frequency and stiffness was obtained in available lifetime of the isolator. Furthermore, the reason for the changes of properties of metal rubber isolator was analyzed with contact model of metal rubber material. The results show that if the resonant amplitude is large, the stiffness of metal rubber isolator will be kept steadily for a long time, its resonant frequency will be stable and the effective working time in the protecting area will be long. The lifetime of metal rubber isolator is more than 1 376 h in the experiment. The main failure forms of metal rubber isolator are accumulative wear and breaking of metal wires and spirals. In protecting area the metal rubber isolator can work effectively for a long time, and the effective working time depends on the concrete working condition. |
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| Keywords: | isolator metal rubber lifetime vibration |
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