CAJ | 학술논문

以精密螺母磨床用直线电机驱动型工作台为研究对象，考虑滚动导轨摩擦和直线电机等热源对工作台上台面的影响，应用ANSYS有限元分析软件对上台面进行了热-力耦合分析。结果表明：机床磨削过程中，上台面达到稳态时的温升为3℃左右，最大变形值为35.2μm，中间部位为其结构设计的薄弱环节；与静力分析比较，两者的最大变形值虽相差不大，但热分析时的整体变形量和等效应力值均大于静力分析结果，等效应力最大值增加了128％。研究结果为同类型结构的热态特性分析提供了参考。
이정밀라모마상용직선전궤구동형공작태위연구대상，고필곤동도궤마찰화직선전궤등열원대공작태상태면적영향，응용ANSYS유한원분석연건대상태면진행료열-력우합분석。결과표명：궤상마삭과정중，상태면체도은태시적온승위3℃좌우，최대변형치위35.2μm，중간부위위기결구설계적박약배절；여정력분석비교，량자적최대변형치수상차불대，단열분석시적정체변형량화등효응력치균대우정력분석결과，등효응력최대치증가료128％。연구결과위동류형결구적열태특성분석제공료삼고。
Taking the nut grinder worktable driven by linear motor as the researching object,considering the effect of the hot source including rolling guide friction and linear motor to the table up-surface,ANSYS finite element analysis software was used to do thermal-mechanical coupling analysis. The results show that the temperature rise in steady state of the table up-surface is 3 ℃ and the maximum deflection is 35.2μm during grinding process. The weaknesses in the structure is its intermediate part. Compared with static analysis,the whole deformation and equivalent stress value in thermal analysis are all outweigh the results of static analysis. The maxi-mum equivalent stress increases by 128%. The results provide reference for thermal characteristics analysis with same type structure.