机械工程与自动化
機械工程與自動化
궤계공정여자동화
MECHANICAL ENGINEERING & AUTOMATION
2014年
2期
21-23
,共3页
叉车%护顶架%Hypermesh%模态分析%频响分析
扠車%護頂架%Hypermesh%模態分析%頻響分析
차차%호정가%Hypermesh%모태분석%빈향분석
forklift truck%overhead guard%Hypermesh%modal analysis%frequency response analysis
以某内燃叉车护顶架为研究对象，结合转向系统，在 Hypermesh中建立了有限元分析模型，并采用Radioss求解器进行了模态计算，获得了护顶架的固有频率和振型；之后用 Nastran进行了某特定工况下的频响分析，得到某些点的加速度响应曲线，分析其动态特性，得出方向盘局部刚度较弱的结论，为叉车护顶架的振动研究提供了参考。
以某內燃扠車護頂架為研究對象，結閤轉嚮繫統，在 Hypermesh中建立瞭有限元分析模型，併採用Radioss求解器進行瞭模態計算，穫得瞭護頂架的固有頻率和振型；之後用 Nastran進行瞭某特定工況下的頻響分析，得到某些點的加速度響應麯線，分析其動態特性，得齣方嚮盤跼部剛度較弱的結論，為扠車護頂架的振動研究提供瞭參攷。
이모내연차차호정가위연구대상，결합전향계통，재 Hypermesh중건립료유한원분석모형，병채용Radioss구해기진행료모태계산，획득료호정가적고유빈솔화진형；지후용 Nastran진행료모특정공황하적빈향분석，득도모사점적가속도향응곡선，분석기동태특성，득출방향반국부강도교약적결론，위차차호정가적진동연구제공료삼고。
In this paper ,the overhead guard of a forklift truck was taken as study object ,and the dynamic analysis on the overhead guard was carried out .Firstly ,the finite element model of it was established in Hypermesh ,and the nature frequencies and mode shapes were obtained using Radioss solver .Then the frequency response analysis was done under certain conditions with Nastran . Finally ,the acceleration response curves of some points were displayed .The dynamic characteristics of the overhead guard provide a reference to the study on its vibration performance .
