基于ANSYS的移动灯塔曲臂上方管的轻量化设计

The Lightweight Design of the Crank Upper Arm Tube of the Mobile Lighthouse Based on ANSYS

摘要: 曲臂是移动照明灯塔中不可或缺的一部分，曲臂质量过大时，不仅会降低灯塔的力学性能和灵活性，还会增大制造成本。本文以灯塔曲臂上方管为研究对象，建立ANSYS的有限元模型，在确定灯塔曲臂的危险工况下，针对此工况利用有限元工具进行静力学分析。在保证强度和刚度的前提下，以材料最省为目标，对灯塔曲臂上方管进行轻量化设计。分析结果表明：在满足刚度强度的情况下，灯塔曲臂上方管可以节省30.9%的材料用量，降低了制造成本。

Abstract: The crank arm is an indispensable part of the mobile lighting lighthouse. When the crank arm is too heavy, it will not only reduce the mechanical properties and flexibility of the lighthouse, but also increase the manufacturing cost. This thesis regards the crank upper arm tube of lighthouse as the research object, whose finite element model is established in ANSYS. Under the condition of determining the dangerous working condition of the lighthouse’s crank arm, the static analysis is conducted by means of finite element tool. By satisfying the strength and rigidity standards, the lightweight design for the crank upper arm tube of lighthouse is carried out with the aim of mini-mizing the material consumption. The analytical results show that if the strength and rigidity con-dition is satisfactory, the upper arm tube of lighthouse can save 30.9% of the material consumption and reduce the manufacturing cost.