本文選題：非線性黏滯阻尼器 + 減震效果��； 參考：《昆明理工大學(xué)》2017年碩士論文

【摘要】：隨著結(jié)構(gòu)控制技術(shù)在土木工程領(lǐng)域中的應(yīng)用及控制理論的逐漸發(fā)展,消能減震技術(shù)做為一種目前工程中最為常用被動(dòng)控制方法,不斷地應(yīng)用到國(guó)內(nèi)實(shí)際工程中,并取得了顯著地減震效果。而黏滯阻尼器是目前減震技術(shù)中最為常用的一種.減震耗能裝置,具有良好的耗能能力和耐久性能。但是,由于黏滯阻尼器在國(guó)內(nèi)發(fā)展時(shí)間尚短,其從生產(chǎn)、質(zhì)量控制到實(shí)際應(yīng)用都未形成一套成熟的系統(tǒng)控制。在國(guó)內(nèi)實(shí)際減震工程中,阻尼器的使用及相關(guān)設(shè)計(jì)規(guī)范也未得到完善,而阻尼器在實(shí)際使用中一旦失效,可能會(huì)導(dǎo)致很多預(yù)想不到的副作用。因此本文就非線性黏滯阻尼器減震效果影響因素進(jìn)行研究,并對(duì)連接間隙對(duì)其耗能影響進(jìn)行了探究。在研究非線性黏滯阻尼器減震影響參數(shù)時(shí),先分別研究了 α=1(線性)及α=0時(shí)的情況,其后,采用線性插值得到非線性黏滯阻尼器對(duì)應(yīng)的減震效果關(guān)系式,并繪制了 0≤α≤1時(shí)相應(yīng)的減震效果與影響因素關(guān)系曲線圖。且經(jīng)過(guò)分析,該方法簡(jiǎn)潔,且和以往相關(guān)方法具有較好的吻合度。黏滯阻尼器性能試驗(yàn)及ETABS軟件分析表明,連接間隙對(duì)黏滯阻尼器耗能的影響可以通過(guò)滯洄曲線圖形的變化表示。最后根據(jù)非線性黏滯阻尼器耗能計(jì)算公式及考慮連接間隙時(shí)滯洄曲線圖形的簡(jiǎn)化計(jì)算,推導(dǎo)出耗能等效算法,得到等效黏滯阻尼系數(shù)。通過(guò)以上研究,最終得出非線性黏滯阻尼器減震效果影響參數(shù)的大致取值范圍及等效阻尼系數(shù)算法。
[Abstract]:With the application of structural control technology in the field of civil engineering and the gradual development of control theory, energy dissipation and seismic absorption technology, as one of the most commonly used passive control methods in current engineering, has been continuously applied to practical projects in China. And achieved remarkable effect of earthquake absorption. Viscous damper is one of the most commonly used dampers. Shock absorber and energy dissipation device, with good energy dissipation capacity and durability. However, due to the short development time of viscous damper in China, it has not formed a mature system control from production, quality control to practical application. The use of dampers and the relevant design specifications are not perfect in the actual earthquake absorption projects in China. However, if the dampers fail in practical use, they may lead to many unexpected side effects. In this paper, the influence factors of nonlinear viscous damper are studied, and the influence of connection gap on its energy dissipation is discussed. In the study of the influence parameters of nonlinear viscous dampers, the case of 偽 1 (linear) and 偽 = 0 are studied respectively, and then linear interpolation is used to obtain the relationship between the damping effect of nonlinear viscous dampers and that of nonlinear viscous dampers. The curves of the relation between the damping effect and the influencing factors of 0 鈮，

本文編號(hào)：2094701