| 质量弹簧串联系统发生原点反共振时子系统的响应特性 |
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| 引用本文： | 刘杰,闻邦椿.质量弹簧串联系统发生原点反共振时子系统的响应特性[J].振动与冲击,1997,16(1):38-42. |
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| 作者姓名： | 刘杰 闻邦椿 |
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| 作者单位： | 东北大学
(刘杰，闻邦椿)，东北大学(纪盛青) |
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| 摘 要： | 本文利用机械阻抗方法,对无阻尼质量弹簧串联系统进行了动力学分析,发现该系统在发生反共振时,子结构各质量的振幅之比总是等于该子结构模态向量各元素之比,从而可以方便地求得系统在简谐激振力下的响应.
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| 关 键 词： | 反共振 机械阻抗 振幅向量 模态向量 子结构(子系统) |
RESPONSE CHARACTERISTICS OF A SUBSYSTEM IN THE SERIALLY CONNECTED MASS-SPRING SYSTEM AT ORIGIN ANTIRESONANCE |
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| Liu Jie Wen Bangchun Ji Shengqing.RESPONSE CHARACTERISTICS OF A SUBSYSTEM IN THE SERIALLY CONNECTED MASS-SPRING SYSTEM AT ORIGIN ANTIRESONANCE[J].Journal of Vibration and Shock,1997,16(1):38-42. |
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| Authors: | Liu Jie Wen Bangchun Ji Shengqing |
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| Affiliation: | Northeastern University |
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| Abstract: | In this paper, the dynamic analysis of a serially connected mass-spring system in which the damping is disregarded is presented. It is found that in a subsystem, at antiresonance, the ratio of the amplitude of any two masses is always equal to the ratio of the corresponding two elements of the modal vector. As a result, the response of the system may be easily got under harmonic excitation. |
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| Keywords: | antiresonance mechanical impedance amplitude vecotr modal vector subsystem |
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