| 基于表观质量负刚度效应的调谐质量阻尼器频率调节 |
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| 引用本文： | 汪志昊,许艳伟,赵顺波,霍洪媛. 基于表观质量负刚度效应的调谐质量阻尼器频率调节[J]. 科学技术与工程, 2016, 16(27) |
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| 作者姓名： | 汪志昊 许艳伟 赵顺波 霍洪媛 |
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| 作者单位： | 华北水利水电大学土木与交通学院,华北水利水电大学土木与交通学院,华北水利水电大学土木与交通学院,华北水利水电大学土木与交通学院 |
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| 基金项目： | 国家自然科学基金资助项目(51308214)；河南省高等学校青年骨干教师资助计划(2015GGJS-104) |
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| 摘 要： | 以附加惯性飞轮与滚珠丝杠机构的弹簧-质量块单自由度(SDOF)模型为例,综合理论分析与模型试验建立了表观质量引起的负刚度效应模型。分析了将表观质量负刚度效应应用于调谐质量阻尼器(TMD)频率调整的可行性。研究表明:基于表观质量负刚度效应的TMD频率调节方法,采用质量比很小的惯性飞轮封装,即可实现TMD频率较大范围内的高效调节;基于表观质量负刚度效应的竖向超低频TMD设计方法,有效解决了TMD静压缩量偏大的问题。
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| 关 键 词： | 结构振动控制 表观质量 负刚度 调谐质量阻尼器 频率调节 |
| 收稿时间： | 2016-04-12 |
| 修稿时间： | 2016-05-12 |
Frequency tuning of tuned mass dampers based on negative stiffness generated by apparent mass |
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| WANG Zhi-hao,XU Yan-wei,ZHAO Shun-bo and HUO Hong-yuan. Frequency tuning of tuned mass dampers based on negative stiffness generated by apparent mass[J]. Science Technology and Engineering, 2016, 16(27) |
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| Authors: | WANG Zhi-hao XU Yan-wei ZHAO Shun-bo HUO Hong-yuan |
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| Affiliation: | School of Civil Engineering and Communication,North China University of Water Resources and Electric Power,School of Civil Engineering and Communication,North China University of Water Resources and Electric Power,School of Civil Engineering and Communication,North China University of Water Resources and Electric Power |
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| Abstract: | Theoretical formula of negative stiffness generated by apparent mass is established by both theoretical analysis and model test, where the model is a combination of a single degree of freedom (SDOF) system and a inertia flywheel with a ball screw. On this basis, feasibility study on application of apparent mass effect to frequency tuning of tuned mass dampers (TMDs) is conducted. The results show that a wider range of frequency tuning of TMDs can be realized by a lighter flywheel based on negative stiffness generated by apparent mass. The apparent mass effect can also be used to design vertical TMDs with ultra-low frequency, in which the static compression of the springs in a TMD can be greatly. decreased. |
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| Keywords: | structural vibration control apparent mass negative stiffness tuned mass damper (TMD) frequency tuning |
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