电磁集能式调谐质量阻尼器的研究与仿真分析

发布时间：2018-04-13 05:15

本文选题：能量收集 + 振动控制　；参考：《湖南科技大学》2016年硕士论文

【摘要】：土木工程结构在强风、地震、波浪等外部激励下,容易产生大幅振动,影响结构的安全和舒适性,为了减轻或抑制结构由于动力荷载所引起的响应,经典TMD用于结构振动控制时,主结构振动能量被转移到附加TMD,并激起TMD产生比主结构大得多的振幅。如果把此类耗能元件替换成具有能量收集功能的换能器,或者在主结构与附加TMD相对位移之间增加压电换能器或电磁换能器等构件,主结构的振动能量能够很好地转化为电能。本文以国家自然科学基金为课题来源,开展关于能量收集与结构减振相结合系统的研究与仿真分析。研究内容和成果包括:(1)介绍国内外能量收集、能量收集与结构振动控制相结合研究的背景和现状,说明了能量收集与结构振动控制研究的前景。(2)对本文所设计的能量收集装置组成、运行原理进行了简要的介绍,简单阐述了能量收集单元与传统型调谐质量阻尼器相结合的基本模型。(3)通过MTS材料试验机,进行不同工况下大量的实验,对两种直线滚动导轨的力学性能进行了完整的分析,得出两种不同直线滚动导轨的力学组成成分,提出了相关的滚动导轨力学模型。并通过参数拟合后对比了理论计算值与实验值具有较好的的吻合程度,验证了该模型的准确性。(4)介绍了电机的基本数学模型,建立了能量收集单元力学模型、simulink仿真模型,分析了能量收集单元中各参数对力学性能的影响及能量收集状况。(5)建立了能量收集单元与调谐质量系统相结合的电磁集能式调谐质量阻尼器(ETMD)模型及其动力学方程。通过分析证明在地震波响应下,系统能够有效的进行结构减振及能量收集,实现了双重性能。
[Abstract]:Civil engineering structure in the strong wind, earthquake, wave and other external excitation, easy to produce vibration, affect the structure safety and comfort, in order to reduce or inhibit the structural response due to dynamic loads caused by the classical TMD for structural vibration control, vibration energy is transferred to the main structure of additional TMD, and aroused TMD amplitude ratio the main structure is much bigger. If such a dissipative element replacing transducer has the function of collecting energy, or increase the piezoelectric transducer or electromagnetic transducer component between the main structure and additional TMD relative displacement, vibration energy main structure can be well transformed into electric energy. Based on the National Natural Science Fund Project the source, carry out energy harvesting and structure vibration research combined with the simulation analysis system. The research contents and results include: (1) introduced the domestic and foreign energy harvesting, energy harvesting and structural vibration Pneumatic control combined with the research background and current situation, describes the research of structural vibration control of energy collection and prospects. (2) energy collection device designed in this thesis, the operation principle is introduced briefly, introduces the basic model of the energy collection unit and the traditional type tuned mass damper combined (3). The MTS material testing machine under different operating conditions, of a large number of experiments, two kinds of linear rolling guide mechanical properties for the complete analysis, we obtained two different linear rolling guide mechanical components, mechanical model of rolling guide is put forward. And the related parameter fitting after compared the calculated value with the better coincides with the experimental data, which verified the accuracy of the model. (4) introduces the basic mathematical model of the motor, establishes energy collecting unit mechanics model, Simulink simulation model, the energy analysis The parameters collection unit in effect on the mechanical properties and energy collection. (5) the electromagnetic energy collecting unit and a tuned mass system combining set type tuned mass damper (ETMD) model and dynamics equation. In response of seismic wave through analysis, system can effectively carry out structural vibration and energy harvesting and to achieve the double performance.

【学位授予单位】：湖南科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TU352.1

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