20MN锚链试验机承载框架空间结构有限元分析

Study and Analysis on the Structure of the 20 MN Anchor Chain Testing Machine Frame Using FEM

大型锚链试验机的设计校核是一个繁杂的计算过程 ,利用有限元方法可以节省大量的工作。对 2 0 MN锚链试验机的承载框架空间结构进行了有限元建模和分析 ,计算出框架在正载和偏载两种工况下的最大应力和变形 ,对该试验机框架结构设计进行了刚度和强度校核 ,并计算出纵梁和前后横梁之间联接螺栓所需的最小预紧力。结果表明该设计满足强度和刚度要求 。

The testing and designing of large\|scale anchor chain testing machines is a complicated computing process. The adoption of finite element modeling (FEM) software can save the computation substantially. FEM is employed to analyze the carrying\|frame spatial structure of the 20 MN anchor chain testing machine. The maximal stress and transmutation of the frame are figured out under the unswerving and deflective loadings, and intensity and rigidity of the designed frame are tested. In addition, the minimal tightening force of the bolts connecting the front and rear beams is worked out. Results show that the design meets all the requirements of strength and rigidity, and the key points that great attention should be paid to in the design are presented.