電磁集能式調(diào)諧質(zhì)量阻尼器的研究與仿真分析
發(fā)布時間:2018-04-13 05:15
本文選題:能量收集 + 振動控制; 參考:《湖南科技大學》2016年碩士論文
【摘要】:土木工程結(jié)構(gòu)在強風、地震、波浪等外部激勵下,容易產(chǎn)生大幅振動,影響結(jié)構(gòu)的安全和舒適性,為了減輕或抑制結(jié)構(gòu)由于動力荷載所引起的響應,經(jīng)典TMD用于結(jié)構(gòu)振動控制時,主結(jié)構(gòu)振動能量被轉(zhuǎn)移到附加TMD,并激起TMD產(chǎn)生比主結(jié)構(gòu)大得多的振幅。如果把此類耗能元件替換成具有能量收集功能的換能器,或者在主結(jié)構(gòu)與附加TMD相對位移之間增加壓電換能器或電磁換能器等構(gòu)件,主結(jié)構(gòu)的振動能量能夠很好地轉(zhuǎn)化為電能。本文以國家自然科學基金為課題來源,開展關(guān)于能量收集與結(jié)構(gòu)減振相結(jié)合系統(tǒng)的研究與仿真分析。研究內(nèi)容和成果包括:(1)介紹國內(nèi)外能量收集、能量收集與結(jié)構(gòu)振動控制相結(jié)合研究的背景和現(xiàn)狀,說明了能量收集與結(jié)構(gòu)振動控制研究的前景。(2)對本文所設計的能量收集裝置組成、運行原理進行了簡要的介紹,簡單闡述了能量收集單元與傳統(tǒng)型調(diào)諧質(zhì)量阻尼器相結(jié)合的基本模型。(3)通過MTS材料試驗機,進行不同工況下大量的實驗,對兩種直線滾動導軌的力學性能進行了完整的分析,得出兩種不同直線滾動導軌的力學組成成分,提出了相關(guān)的滾動導軌力學模型。并通過參數(shù)擬合后對比了理論計算值與實驗值具有較好的的吻合程度,驗證了該模型的準確性。(4)介紹了電機的基本數(shù)學模型,建立了能量收集單元力學模型、simulink仿真模型,分析了能量收集單元中各參數(shù)對力學性能的影響及能量收集狀況。(5)建立了能量收集單元與調(diào)諧質(zhì)量系統(tǒng)相結(jié)合的電磁集能式調(diào)諧質(zhì)量阻尼器(ETMD)模型及其動力學方程。通過分析證明在地震波響應下,系統(tǒng)能夠有效的進行結(jié)構(gòu)減振及能量收集,實現(xiàn)了雙重性能。
[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.
【學位授予單位】:湖南科技大學
【學位級別】:碩士
【學位授予年份】:2016
【分類號】:TU352.1
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