本文關(guān)鍵詞： PCS水箱 Housner模型 液動(dòng)壓力 等效質(zhì)量-彈簧模型　出處：《地震工程學(xué)報(bào)》2017年05期 　論文類型：期刊論文

【摘要】：中國核電廠抗震設(shè)計(jì)規(guī)范推薦采用的Housner模型不適用于復(fù)雜形狀核電儲(chǔ)液結(jié)構(gòu)的流固耦合分析。對(duì)于AP1000和CAP1400核電站屏蔽廠房頂部非能動(dòng)安全殼冷卻系統(tǒng)重力水箱(簡稱PCS水箱),基于圓柱形水箱的Housner等效質(zhì)量-彈簧模型,通過引入水箱體積修正參數(shù),提出PCS水箱的三維等效質(zhì)量-彈簧模型。采用有限元軟件ADINA建立水箱結(jié)構(gòu)流固耦合整體有限元模型以進(jìn)行模態(tài)分析,計(jì)算分析PCS水箱和對(duì)應(yīng)環(huán)形水箱在不同尺寸和液體深度條件下的液體晃動(dòng)自振特性。對(duì)比整體有限元模型與三維等效質(zhì)量-彈簧模型計(jì)算結(jié)果發(fā)現(xiàn),提出的PCS水箱三維等效質(zhì)量-彈簧模型能給出其內(nèi)液體晃動(dòng)各階振型的液動(dòng)壓力合理估計(jì)值,適用于具有復(fù)雜形狀的PCS水箱液動(dòng)壓力分析。本文的等效模型方法可推廣應(yīng)用于其他復(fù)雜形狀水箱的液動(dòng)壓力分析。
[Abstract]:The Housner model recommended in the code for seismic design of nuclear power plants in China is not suitable for fluid-solid coupling analysis of nuclear power storage structures with complex shapes. For shielding buildings of AP1000 and CAP1400 nuclear power plants. Top passive containment cooling system gravity tank (. PCS water tank for short. Based on the Housner equivalent mass-spring model of cylindrical water tank, the parameters are modified by introducing the volume of water tank. Three-dimensional equivalent mass-spring model of PCS water tank is presented. The fluid-solid coupling integral finite element model of water tank structure is established by using finite element software ADINA to carry out modal analysis. The natural vibration characteristics of liquid sloshing in PCS water tank and corresponding annular water tank under different sizes and liquid depths are calculated and analyzed, and the results are compared between the global finite element model and the three-dimensional equivalent mass-spring model. The three-dimension equivalent mass-spring model of the PCS tank can give reasonable estimates of the hydrodynamic pressure of the liquid sloshing modes in the tank. The equivalent model method in this paper can be extended to the hydrodynamic pressure analysis of other water tanks with complex shapes.
【作者單位】： 北京工業(yè)大學(xué)建筑工程學(xué)院;中國地震局地球物理研究所;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51421005,51408255) 國家科技重大專項(xiàng)資助項(xiàng)目(2013ZX06002001)
【分類號(hào)】：TM623
【正文快照】： 0引言以浙江三門和山東海陽的核電站為依托,我國積極推進(jìn)第三代AP1000型核電站的國產(chǎn)化,以CAP1400型先進(jìn)壓水堆為代表的自主設(shè)計(jì)核電項(xiàng)目也處于研究攻關(guān)時(shí)期。CAP1400型壓水堆核電機(jī)組是具有我國自主知識(shí)產(chǎn)權(quán)的裝機(jī)容量為140萬kW級(jí)的非能動(dòng)大型先進(jìn)壓水堆核電機(jī)組。該核電項(xiàng)目，

本文編號(hào)：1472741