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The main motor supporting plate is the connector of super power wire sawing machine between main motion mechanism and the main motor with force concentrated and complex forces, high level of requirements in stress and rigidity, having a great influence on the reliability of the total machine. Based on the physics and mechanics modeling, the current study is carried out on the mechanics and modal analyses. The theory of optimization is adopted, on the premise of meeting the requirements of reliability under the condition of lightness as the goal with the strength and stiffness constraints, basic size of the plate as decision variables, using the penalty function interior point method, for analysis and design optimization. The actual application shows that the design not only guarantees the reliability of the overall working condition of the superpower rope saw, but also reduces the quality of the plate by 9.5%.

The Mechanical Modal Analysis of the Main Motor Supporting Plate and the Optimal Design on the Penalty Function with the Interior Point Method