Machine design with FEA

Sep 17, 2015

CMS’ structural engineering and design work applies Finite Element Analysis with today’s most sophisticated software in order to obtain optimum results for stress evaluation, structural dimensioning, and testing the structural dynamic loads on machine elements, which makes it possible for CMS to design structures and choose motion systems (precision guides and roller recirculation sliding blocks), to provide enhanced operation power, geometrical accuracy and reliability for high-speed machining, even in heavy material removal conditions.

The resulting mobile mechanisms are designed with an optimized strength/weight ratio, driven by high-performance servomotors, providing high top end speeds, and high performance acceleration/deceleration responsiveness, combined with the maximum rigidity values and system reliability.

The analysis of a bridge structure is shown here. The predicted torsion and deflection are addressed through the FEA predictive process and shown in the output rendering.

In CMS’ evaluation of this outcome, it employs a folding technology in the bridge structure, as well as introducing a “honeycomb” internal structure, minimizing the  number of elements required, and reducing the number of welded joints, resulting in greater stiffness and strength.