發(fā)布時(shí)間：2018-04-13 05:15

  本文選題：能量收集 + 振動(dòng)控制��； 參考：《湖南科技大學(xué)》2016年碩士論文

【摘要】：土木工程結(jié)構(gòu)在強(qiáng)風(fēng)、地震、波浪等外部激勵(lì)下,容易產(chǎn)生大幅振動(dòng),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(dòng)力荷載所引起的響應(yīng),經(jīng)典TMD用于結(jié)構(gòu)振動(dòng)控制時(shí),主結(jié)構(gòu)振動(dòng)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(duì)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(dòng)能量能夠很好地轉(zhuǎn)化為電能。本文以國(guó)家自然科學(xué)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?jī)?nèi)容和成果包括:(1)介紹國(guó)內(nèi)外能量收集、能量收集與結(jié)構(gòu)振動(dòng)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(dòng)控制研究的前景。(2)對(duì)本文所設(shè)計(jì)的能量收集裝置組成、運(yùn)行原理進(jìn)行了簡(jiǎn)要的介紹,簡(jiǎn)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(yàn)機(jī),進(jìn)行不同工況下大量的實(shí)驗(yàn),對(duì)兩種直線滾動(dòng)導(dǎo)軌的力學(xué)性能進(jìn)行了完整的分析,得出兩種不同直線滾動(dòng)導(dǎo)軌的力學(xué)組成成分,提出了相關(guān)的滾動(dòng)導(dǎo)軌力學(xué)模型。并通過參數(shù)擬合后對(duì)比了理論計(jì)算值與實(shí)驗(yàn)值具有較好的的吻合程度,驗(yàn)證了該模型的準(zhǔn)確性。(4)介紹了電機(jī)的基本數(shù)學(xué)模型,建立了能量收集單元力學(xué)模型、simulink仿真模型,分析了能量收集單元中各參數(shù)對(duì)力學(xué)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(dòng)力學(xué)方程。通過分析證明在地震波響應(yīng)下,系統(tǒng)能夠有效的進(jìn)行結(jié)構(gòu)減振及能量收集,實(shí)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(xué)位授予單位】：湖南科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TU352.1

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本文編號(hào)：1743081