CAJ | 학술논문

简要阐述了振动模态及热模态有限元分析理论基础,分析解释了运用振动模态及热模态计算结果进行机床结构优化设计的原理依据.作为实例,分别利用ANSYS和COMSOL软件仿真计算了一台数控车削中心主轴箱的振动模态及热模态,根据计算结果提出了振动模态分析以调节固有频率为主、热模态分析以调节低阶热模态分布为主的结构优化设计方向,并分析了基于振动模态的结构设计与基于热模态的结构设计之间的相互影响.
간요천술료진동모태급열모태유한원분석이론기출,분석해석료운용진동모태급열모태계산결과진행궤상결구우화설계적원리의거.작위실례,분별이용ANSYS화COMSOL연건방진계산료일태수공차삭중심주축상적진동모태급열모태,근거계산결과제출료진동모태분석이조절고유빈솔위주、열모태분석이조절저계열모태분포위주적결구우화설계방향,병분석료기우진동모태적결구설계여기우열모태적결구설계지간적상호영향.
Schematically introduce the basic theory of vibration mode and thermal mode analysis and the fea-sibility of applying them to machine tool structure design is analyzed.As a demonstration example,the Vi-bration mode and thermal mode of a turning center headstock are simulated using ANSYS and COMSOL software respectively.According to the simulation results,the scheme of structure design that vibration mode analysis and thermal mode analysis are applied to optimizing machine tool structure from the angle of natural frequency and lower thermal modes distribution respectively is proposed.The interactions between structural designs based on vibration mode and thermal mode are analyzed.