压力容器
壓力容器
압력용기
2014年
1期
27-33
,共7页
储液罐%简化模型%仿真
儲液罐%簡化模型%倣真
저액관%간화모형%방진
storage tank%simplified model%simulation
选取了两种力学模型，刚性理论的Housner 模型和柔性理论的Haroun -Housner 模型，将Housner模型简化为二质点结构，Hauroun-Housner模型简化为三质点结构，将其和规范算法、有限元算法进行频率对比，误差不足5％。采用Newmark-β法进行弹性时程分析，得到液体各质点的位移时程、罐底剪力时程、倾覆弯矩时程。仿真结果表明：简化模型和有限元、规范算法频率相差很小，水平地震激励后期，晃动质点位移时程相差较大，刚性脉冲质点位移时程几乎一致，罐底剪力和规范算法相差很小，倾覆弯矩相差较大。 Housner方法设计的储液罐，液体晃动部分的响应被低估，储液罐工程设计人员及研究人员应予以重视。
選取瞭兩種力學模型，剛性理論的Housner 模型和柔性理論的Haroun -Housner 模型，將Housner模型簡化為二質點結構，Hauroun-Housner模型簡化為三質點結構，將其和規範算法、有限元算法進行頻率對比，誤差不足5％。採用Newmark-β法進行彈性時程分析，得到液體各質點的位移時程、罐底剪力時程、傾覆彎矩時程。倣真結果錶明：簡化模型和有限元、規範算法頻率相差很小，水平地震激勵後期，晃動質點位移時程相差較大，剛性脈遲質點位移時程幾乎一緻，罐底剪力和規範算法相差很小，傾覆彎矩相差較大。 Housner方法設計的儲液罐，液體晃動部分的響應被低估，儲液罐工程設計人員及研究人員應予以重視。
선취료량충역학모형，강성이론적Housner 모형화유성이론적Haroun -Housner 모형，장Housner모형간화위이질점결구，Hauroun-Housner모형간화위삼질점결구，장기화규범산법、유한원산법진행빈솔대비，오차불족5％。채용Newmark-β법진행탄성시정분석，득도액체각질점적위이시정、관저전력시정、경복만구시정。방진결과표명：간화모형화유한원、규범산법빈솔상차흔소，수평지진격려후기，황동질점위이시정상차교대，강성맥충질점위이시정궤호일치，관저전력화규범산법상차흔소，경복만구상차교대。 Housner방법설계적저액관，액체황동부분적향응피저고，저액관공정설계인원급연구인원응여이중시。
Selected the two kinds of mechanical models ,Housner model of rigidity theory and the theory of flexible Haroun-Housner model ,Housner model is simplified to two particle structure ,Hauroun Housner model simplified into three particle structure ,algorithm and its specification frequency comparison ,the fi-nite element algorithm ,error less than 5%.By using Newmark -beta elastic time history analysis ,get the liquid displacement time history ,acceleration time history of each particle and the tank bottom shear cal-endar ,overturning moment .The simulation results show that the simplified model and finite element algo-rithm of frequency of the code , a small , late horizontal earthquake excitation , the rock particle displace-ment time history is large ,rigid pulse particle displacement time history almost unanimously ,tank bottom shear algorithm of the code and is very small ,overturning moment is large .Housner method design of liq-uid storage tank ,the liquid sloshing part of the response is undervalued ,storage tank engineering design-ers and researchers should attach importance to it .
