CAJ | 학술논문

龙门式机床横梁的动刚度是影响机床加工精度的重要因素。针对某企业的研发产品，通过建立龙门式机床横梁的三维实体模型和有限元模型，对横梁进行了有限元模态分析，得出了横梁前四阶模态的固有频率和振型。数值结果表明该产品具有良好的动态刚度特性，为后续的优化设计提供了理论依据。
룡문식궤상횡량적동강도시영향궤상가공정도적중요인소。침대모기업적연발산품，통과건립룡문식궤상횡량적삼유실체모형화유한원모형，대횡량진행료유한원모태분석，득출료횡량전사계모태적고유빈솔화진형。수치결과표명해산품구유량호적동태강도특성，위후속적우화설계제공료이론의거。
The dynamic stiffness of the beam for gantry machine tool is one of the important factors on the working accuracy.Aiming at the products development , it establishes the 3D model and FEM model of the beam for gan-try machine tool , analyzes the modal behaviors and obtains the natural frequencies and modes .The numerical re-sults show that the gantry machine tool has good dynamical characteristics .These provide a theoretical basis for the subsequent optimization design .