| 简支梁固有频率与固有振型的实验室测量与理论分析 |
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| 引用本文： | 戴丽玲.简支梁固有频率与固有振型的实验室测量与理论分析[J].昆明师范高等专科学校学报,2008,30(4):86-89. |
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| 作者姓名： | 戴丽玲 |
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| 作者单位： | 昆明学院自动控制与机械工程系 |
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| 摘 要： | 具有连续结构的等截面简支梁是分析振动现象的一种常用工具．应用理论分析和实验测试的方法对等截面简支梁进行动力学分析，可以找出该连续系统振动的固有频率、振幅、临界阻尼．通过分析系统振动的固有频率、振幅和临界阻尼，避免了对机构破坏最大的共振现象的发生，达到主动避振的目的．从等截面简支梁固有频率与固有振型入手，为我们分析复杂机构的振动提供了参考方法．
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| 关 键 词： | 等截面简支梁 振动 固有频率 固有振型 阻尼比 |
Experimental Testing Methods and Theoretical Analysis of Simple Beam with Natural Frequency and Inherent Vibration |
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| DAI Li-ling.Experimental Testing Methods and Theoretical Analysis of Simple Beam with Natural Frequency and Inherent Vibration[J].Journal of Kunming Teachers College,2008,30(4):86-89. |
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| Authors: | DAI Li-ling |
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| Institution: | DAI Li-ling (Department of Automatic Control and Mechanical Engineering, Kunming University, Yunnan Kunming 650118, China) |
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| Abstract: | Simple beam which with the cross-section and continuous structure,is usually used as an analysis tool of the vibration phenomenon.Dynamic analysis of simple beam with the application of theoretical analysis and experimental testing methods,can get natural frequency,vibration amplitude and critical damping of the continuous structure.To analyze the natural frequency,vibration,amplitude and critical damping can avoid sympathetic vibration,which leads to the furthest damage to the framework.It can also reach the intention to avoid vibration.Start with the natural frequency and inherent vibration of the simple beam with cross-section,which offered a useful method to start our research of vibration of complicated framework. |
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| Keywords: | simple beam with cross-section vibration natural frequency inherent vibration mode damping ratio |
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