CAJ | 학술논문

车架结构模态是影响车辆结构动态特性的主要因素，采用有限元方法是获得车架结构模态的简便有效的方法。应用HyperMesh有限元分析软件计算某后卸料混凝土搅拌运输车副车架结构模态，同时进行车架结构模态实验，验证有限元模态计算结果的正确性。结果表明，有限元模态计算得到的副车架前8阶模态频率与实验测得的副车架前8阶模态频率最大相对误差为8．66％，所建立的后卸料混凝土搅拌运输车副车架结构有限元模型，可为今后副车架结构动态特性的改进提供有效的分析模型。
차가결구모태시영향차량결구동태특성적주요인소，채용유한원방법시획득차가결구모태적간편유효적방법。응용HyperMesh유한원분석연건계산모후사료혼응토교반운수차부차가결구모태，동시진행차가결구모태실험，험증유한원모태계산결과적정학성。결과표명，유한원모태계산득도적부차가전8계모태빈솔여실험측득적부차가전8계모태빈솔최대상대오차위8．66％，소건립적후사료혼응토교반운수차부차가결구유한원모형，가위금후부차가결구동태특성적개진제공유효적분석모형。
The structure mode of frame is the main factor influence of the dynamic characteristics for the vehicle structure .The mode of the frame structure can be easily obtained by the modal FEA .The article analyzes the modal FEA for the sub-frame of a front discharge mixer truck in HyperMesh software .In order to prove the va-lidity of the finite element modal , it establishes the modal analysis testing system .The maximum relatively error between simulation results and the results obtained from experimental modal analysis is 8 .66%.The analysis re-sultl can be used for improvement and development of the sub -frame in the future .