矩形储液箱静水压模态仿真分析与材料比选  

The modal simulation of hydrostatic pressure and comparison of material for rectangle storage box

作　　者：刘楠[1,2] 张宏旺[1] 李钟全[3] 方保华[1] 

机构地区：[1]总后油料研究所,北京100230 [2]清华大学精密仪器与机械学系,北京100084 [3]中国石油天然气集团公司机关服务中心,北京100724

出　　处：《油气储运》2011年第11期837-841,5-6,共5页Oil & Gas Storage and Transportation

摘　　要：基于模态分析理论,建立了矩形储液箱箱体和梁单元模型,分别对储液箱空载和满载状态的应力强度和六阶以下振动模态进行分析。结果表明:静水压下满载的支反力为8285.4N,空载的支反力为1222.9N,整个箱体的最大应力强度出现在箱体侧板底部与底板长支撑的连接处,箱体在x、y、z方向的最大位移均小于3.5mm,可以被实际工程所接受;各阶模态频率均非整体结构的共振频率,振型、振幅均在可控和可接受的范围内,可以满足军事装备对可靠性和安全性的要求。对316L、Q235和铝3种不同材料矩形储液箱的技术参数进行对比分析,认为Q235和铝两种材料在今后军事装备的整体性能改进、轻量化和可靠性设计等方面具有不同的技术优势。Based on modal analysis theory,the rectangle storage box and beam element have been established,the stress strength under the state of no-load and full-load and vibrate modal below the sixth order have been analyzed.The results indicate that the reactions of support under hydrostatic pressure are 8 285.4 N and 1 222.9 N respectively with full-load and no-load,the maximum stress strength of whole box appears in the joint between the bottom of lateral plate and long support of base plate,and the maximum displacements of the box in x,y,z direction are less than 3.5 mm,which can be accepted in the aspect of practical engineering.Each modal frequency is not a resonance frequency for the integral structure,and the vibration mode and amplitude are within a controllable and acceptable range,which can satisfy the demands of reliability and safety for military equipment.By analyzing technical parameters of 316L,Q235 and aluminum which are used to make rectangle storage box,the technological advantage of Q235 and aluminum in enhancing the overall performance of military equipment,lightweight and reliability design have been defined.

关 键 词：矩形储液箱 有限元 强度分析 模态分析 共振频率 可靠性 

分 类 号：TQ317.9[化学工程—高聚物工业]