石油化工设备
石油化工設備
석유화공설비
PETRO-CHEMICAL EQUIPMENT
2013年
6期
32-37
,共6页
埋地油罐%力学特性%有限元分析
埋地油罐%力學特性%有限元分析
매지유관%역학특성%유한원분석
buried oil tank%mechanics performance%finite element analysis
针对埋地油罐的安装特点，对埋地油罐的罐外覆土压力进行了分析。应用大型通用有限元分析软件 ANSYS 建立了30 m3埋地钢制油罐的三维有限元模型，并进行求解，得出埋地油罐最大等效应力发生在鞍座尖角处罐体外壁面上。分析了砼鞍座的支撑位置及结构尺寸对油罐强度的影响，结果表明，当支撑位置犃≤400 mm 时，油罐的最大等效应力发生在鞍座外侧边缘最低点的罐体内壁面上；当犃＞400 mm 时，油罐的最大等效应力发生在鞍座尖角处罐体外壁面上。砼鞍座宽度及包角对油罐最大等效应力的影响相互独立，安装埋地油罐时砼鞍座的支撑位置应尽量靠近封头连接处。
針對埋地油罐的安裝特點，對埋地油罐的罐外覆土壓力進行瞭分析。應用大型通用有限元分析軟件 ANSYS 建立瞭30 m3埋地鋼製油罐的三維有限元模型，併進行求解，得齣埋地油罐最大等效應力髮生在鞍座尖角處罐體外壁麵上。分析瞭砼鞍座的支撐位置及結構呎吋對油罐彊度的影響，結果錶明，噹支撐位置犃≤400 mm 時，油罐的最大等效應力髮生在鞍座外側邊緣最低點的罐體內壁麵上；噹犃＞400 mm 時，油罐的最大等效應力髮生在鞍座尖角處罐體外壁麵上。砼鞍座寬度及包角對油罐最大等效應力的影響相互獨立，安裝埋地油罐時砼鞍座的支撐位置應儘量靠近封頭連接處。
침대매지유관적안장특점，대매지유관적관외복토압력진행료분석。응용대형통용유한원분석연건 ANSYS 건립료30 m3매지강제유관적삼유유한원모형，병진행구해，득출매지유관최대등효응력발생재안좌첨각처관체외벽면상。분석료동안좌적지탱위치급결구척촌대유관강도적영향，결과표명，당지탱위치부≤400 mm 시，유관적최대등효응력발생재안좌외측변연최저점적관체내벽면상；당부＞400 mm 시，유관적최대등효응력발생재안좌첨각처관체외벽면상。동안좌관도급포각대유관최대등효응력적영향상호독립，안장매지유관시동안좌적지탱위치응진량고근봉두련접처。
Aimed at the buried oil tank installation characteristics,the mulching soil pressure of buried oil tank is analyzed.The finite element model of 30 m3 buried steel oil tank is established by the large general-purpose finite element analysis software ANASYS and the result is obtained. The solution is that the maximum stress of tank appears on the tank outer-wall attached to the saddle closed angle.Analyzing the influence of concrete saddle parameter and support position to the intensity of tank,the results has show that when support position A≤400 mm,the maximum stress of tank appears on the tank inner-wall attached to the lowest point of the saddle outboard edge,when support position A>400 mm,the maximum stress of tank appears on the tank outer-wall attached to the saddle closed angle;the influence of the width and contact angle of concrete saddle to the maximum stress of tank is mutual independence;when the buried oil tank installa-tion,the concrete saddle should be located at the position near the head.
