DESIGN, FABRICATION AND ANALYSIS OF DIFFERENT FORM DESIGNS FOR A CANTILEVER BEAM

In the past, the design of CNC machine tools focused on their functional aspects and was hard to acquire any resonance with customers. Nowadays, despite the needs of low-price, high-quality, higher cutting speeds and the fact that machine tools operates at high acceleration and deceleration with high quality at lower cost machine tools and more customers request a good-looking machine. To achieve high performance, the static stiffness of the machine tool should be increased and the moving mass should be reduced. The influence and improving methods for possible structural modifications that could increase its structural stiffness while enhancing other characteristics including damping simultaneously. The different form designs were studied for enhancing the static stiffness. Different form designs of hollow box with stiffeners in different orientations were designed to increase the stiffness with constant mass and constant perimeter employing a cantilever beam. Modal characteristics and the static deflection characteristics of those different form designs were analyzed experimentally. Numerical analysis was done and results were validated with experiments.