矩形储液箱在流固耦合下的静强度及模态分析  

Static strength and modal analysis of a rectangular liquid container under fluid-structure coupling conditions

作　　者：张宏旺[1] 黄鑫[2] 赵军[2] 刘楠[1,3] 

机构地区：[1]中国人民解放军总后勤部油料研究所,北京102300 [2]北京化工大学机电工程学院,北京100029 [3]清华大学精密仪器与机械学系,北京100084

出　　处：《北京化工大学学报（自然科学版）》2012年第1期93-97,共5页Journal of Beijing University of Chemical Technology(Natural Science Edition)

摘　　要：以某矩形储液箱为研究对象,在ANSYS软件中建立了三维有限元模型,对其在静水压作用下的强度进行了计算。同时,模拟了流体对于箱体的作用,对矩形储液箱进行了在空载和流固耦合下的模态分析,提取了前5阶固有频率和振型,为矩形储液箱的设计提供了可靠的数值依据。In order to study rectangular liquid containers,a three-dimension finite element method（FEM） model has been developed through ANSYS.This model can not only calculate the strength of the rectangular liquid container under hydrostatic pressures,but also can simulate the effects of a fluid on rectangular liquid containers under different conditions.A modal analysis has been carried out for rectangular liquid containers under zero-load as well as under fluid-structure coupling conditions.Furthermore,this model allows the first five order inherent frequency and vibration modes to be selected.The analysis provides reliable numerical reference data for the development of rectangular liquid containers.

关 键 词：矩形储液箱 有限元 模态分析 流固耦合 

分 类 号：TB123[理学—工程力学]