| 预加力对梁的动力影响分析 |
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| 引用本文： | 刘宏伟,张伟,庄惠平.预加力对梁的动力影响分析[J].黑龙江科技学院学报,2002,12(3):37-39. |
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| 作者姓名： | 刘宏伟 张伟 庄惠平 |
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| 作者单位： | 1. 中国矿业大学建工学院,江苏,徐州,221008;空军后勤学院五系,江苏,徐州,221008
2. 空军后勤学院五系,江苏,徐州,221008 |
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| 摘 要： | 从一预应力简支梁出发,分析了预加力在梁的振动过程中的变化,采用相关数学物理方法,推导出了预应力梁的自由振动方程以及自振频率公式,并且得出预加力将导致梁的自振频率减少,而偏心距会引起梁的自振频率增长等结论。
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| 关 键 词： | 预加力 动力分析 自振频率 |
| 文章编号： | 1671-0118(2002)03-0037-03 |
Analysis of Dynamic Influence from Prestressed Beam |
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| LIU Hongwe,ZHANG Wei,ZHUANG Huiping.Analysis of Dynamic Influence from Prestressed Beam[J].Journal of Heilongjiang Institute of Science and Technology,2002,12(3):37-39. |
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| Authors: | LIU Hongwe ZHANG Wei ZHUANG Huiping |
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| Abstract: | Prestress structure has been widely used in practical engineering. Because of its existence, structural specific property is influence to a certain degree. Starting from a simple prestressed beam, using mathematic and physic method, this article analyses the changes of the prestress in the vibration process of the beam and then deduces the formula of free vibration and vibration frequency. So, conclusion of vibration frequency decreased by prestress and increased by deviation is obtained. |
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| Keywords: | prestress dynamic vibration frequency |
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