CAJ | 학술논문

摩托车车架的模态特性是车架其他动力学特性的基础。为满足某新款摩托车车架设计开发的需要，采用数值模拟和试验验证相结合的方法研究了车架的模态特性。利用Hyper-works有限元分析软件进行了车架模态特性的数值模拟，提取和分析了车架的前10阶固有频率和振型，通过LMS．TEST．LAB数据采集分析软件对车架进行了试验模态分析，并采用模态拟合法和模态置信法（MAC）进行了模态试验结果验证，为车架的减振降噪和结构优化设计提供了理论依据。
마탁차차가적모태특성시차가기타동역학특성적기출。위만족모신관마탁차차가설계개발적수요，채용수치모의화시험험증상결합적방법연구료차가적모태특성。이용Hyper-works유한원분석연건진행료차가모태특성적수치모의，제취화분석료차가적전10계고유빈솔화진형，통과LMS．TEST．LAB수거채집분석연건대차가진행료시험모태분석，병채용모태의합법화모태치신법（MAC）진행료모태시험결과험증，위차가적감진강조화결구우화설계제공료이론의거。
The modal characteristics of motorcycle frame are the basics of other dynamic characteris-tics.In order to meet the need of new frame design and development,method on the combination of numerical simulation and experimental verification was adopted to research on modal characteristics of the new type of motorcycle frame.Hyperworks finite element analysis software helped complete the numerical simulation of frame modal characteristics and the first ten order natural frequencies and vi-bration modes were extracted;at the same time experimental modal analysis of motorcycle frame was done through the aid of LMS.TEST.LAB data acquisition and analysis software and the modal test re-sults were validated through modal synthesis and modal assurance method (MAC ),thus providing theoretical basis for frame vibration noise reduction and structural optimization.