汽车实用技术
汽車實用技術
기차실용기술
PRACTICAL TECHNOLOGY OF AUTOMOBILE
2011年
9期
8-11
,共4页
电动车%车架%有限元%模态分析
電動車%車架%有限元%模態分析
전동차%차가%유한원%모태분석
electric vehicle%frame%finite element%modal analysis
针对某型号电动车的车架拓扑结构，首先利用UG建立其3D模型；然后导入Hypermesh建立以壳单元为基本单元的车架有限元分析模型；最后在ANSYS中计算出该车架的模态特性，得到了该车架自由状态下的十二阶频率。为车架响应提供了重要的模态参数，同时也为车架拓扑结构的优化设计提供了理论依据。
針對某型號電動車的車架拓撲結構，首先利用UG建立其3D模型；然後導入Hypermesh建立以殼單元為基本單元的車架有限元分析模型；最後在ANSYS中計算齣該車架的模態特性，得到瞭該車架自由狀態下的十二階頻率。為車架響應提供瞭重要的模態參數，同時也為車架拓撲結構的優化設計提供瞭理論依據。
침대모형호전동차적차가탁복결구，수선이용UG건립기3D모형；연후도입Hypermesh건립이각단원위기본단원적차가유한원분석모형；최후재ANSYS중계산출해차가적모태특성，득도료해차가자유상태하적십이계빈솔。위차가향응제공료중요적모태삼수，동시야위차가탁복결구적우화설계제공료이론의거。
Taking a frame topological structure of a electric car as the research object, the 3Dmodel was constructed by UG. And Then the model was imported into Hypermesh to establish the finite element analysis model, which use the shell as the basic unit of the frame. The final calculation of frame referred to model state properties would be carried out in ANSYS, twelve natural frequencies under free conditions was obtained at last. The research provided important parameters for the modal response, and it also provided a theory basis for frame topological structure optimization.
