摘要
用Solid Works三维软件建立龙门式加工中心横梁结构的立体几何模型,其中横梁内部的筋板布置采用"O"型筋板,按照分析方案的设计,将三维模型导入到ANSYS Workbench中进行静力学分析以及模态分析,分别得到其静变形参数和前六阶模态振型;通过灵敏度分析得出最终设计变量,就是以横梁上下左右壁厚、中间O型筋板、后壁筋板、两边O型筋板厚度为设计输入变量;以横梁质量、横梁总变形、横梁一阶固有频率为设计输出变量,得到筋板最优尺寸参数。使其横梁结构总变形减少16.02%,1阶固有频率提高2.94%,质量减少129.9 kg,占比8.3%,实现了龙门式加工中心横梁结构的轻量化设计。
The 3D model of gantry machining center beam structure is established using SolidWorks. The rib layout inside beam is M 0 M shaped ribs. According to the design of the analysis program, the 3D model is imported into the ANSYS Workbench for static analysis and modal analysis. The static deformation parameters and the first six modes modal shapes are obtained. Through the sensitivity analysis, the final design variables are obtained. The input variables are the upper and lower beam thickness, the middle 0 -shaped ribs, the rear wall ribs and the thickness of the 0 -shaped ribs on both sides of the crossbeam, and the total deformation of the crossbeam. The natural frequency is the designed output variable, and the optimal size parameter of the rib is obtained. The total deformation of the beam structure is reduced by 16.02%, the natural frequency of the first order is increased by 6.8%, and the mass is reduced by 129.9kg, accounting for 8.3%. The lightweight design of the gantry machining center beam structure is realized.
出处
《机械工程师》
2017年第6期5-8,共4页
Mechanical Engineer
