Research on the Stiffness Characteristics of the Rotary Structure of the Cannon

Abstract With the increasing requirements for lightweight of cannon, it is necessary to design corresponding structure according specific load-bearing form cannon ensure that purpose weight reduction can be achieved on premise meeting a certain rigidity. In this paper, bracket, its structural simplified as disk and double arms, four characteristic variables thickness, inclined length, straight arm thickness curved are obtained by extracting dimensions. According previous experience, feature size scheme table obtained. Models with different sizes were simulated analyzed control variable method, effects stiffness explored. After analysis, found increase disk, decrease wall improve rigidity structure. And under same has better torsional than arm, which increased 15.2% average. While improved, light realized. It provides reference double-arm mainly bears rotational torque.