CAJ | 학술논문

基于重心驱动理论对某十字滑台进给系统进行双驱改进，建立了双滚珠丝杠驱动工作台有限元分析模型。利用ANSYS Workbench对简化的有限元模型进行模态分析，以导轨间距为设计参数，分析了其对工作台固有频率和振型的影响，得出采用双驱驱动的工作台在进给方向和工作台垂直方向的刚度有明显的提高。进一步析比较了改进前后进给系统工作台在正弦干扰驱动力作用下的谐响应，仿真结果表明改进后的进给系统整体的动态性能有较大提升。
기우중심구동이론대모십자활태진급계통진행쌍구개진，건립료쌍곤주사강구동공작태유한원분석모형。이용ANSYS Workbench대간화적유한원모형진행모태분석，이도궤간거위설계삼수，분석료기대공작태고유빈솔화진형적영향，득출채용쌍구구동적공작태재진급방향화공작태수직방향적강도유명현적제고。진일보석비교료개진전후진급계통공작태재정현간우구동력작용하적해향응，방진결과표명개진후적진급계통정체적동태성능유교대제승。
The improvement of a cross worktable feeding system into one with double drive base on principle of Driven at Center of Gravity ( DCG) , then constructing finite element models of the double feeding sys-tem. The modal analysis of the finite element model that have been simplified, as guide different spacing as a design parameter, gain their inherent frequency and vibration type, reach a conclusion that the improve-ment stiffness of work table is improved obviously in the direction of feed and vertical. Further, through the simulation analysis and comparison of improvement and non-improvement of feeding system harmonic re-sponse under the action of the sinusoidal interference driving force, the result show that the overall dynamic performance has improved a lot.