螺旋桨轴毂复合联接结构接触问题的非线性有限元分析及结构尺寸优化

Nonlinear Finite Element Analysis and Structure Size Optimization of Composite Shaft-hub Connection Structure Contact Problem of Propeller

针对航空工业产品使用的情况分析:要求其在保证承载的前提下,在设计中尽可能使其结构紧凑或减重。利用ANSYS软件建立一种新型螺旋桨轴毂复合联接结构的有限元接触模型,并以其复合结构中关键零件弹性环的半锥角及宽度为设计变量、弹性环的最大应力为状态变量,对弹性环的结构尺寸进行优化分析,为设计一种能满足航空行业中使用要求的螺旋桨轴毂复合联接结构提供理论分析基础。

Abstract According to the characteristics of aero product, the industry product must be as simple and light as possible under the premise of ensuring the load performance. By using the finite element analysis software ANSYS, a nonlinear contact model about a new type of composite shaft - hub connection structure of propeller is established. Based on the model, a optimization about the elastic ring, part of the shaft- hub connection structure, which defines the semi - cone angle and the width of the elastic ring as the design variables, the stress of the elastic ring as the state variable is carried out. The optimization results provide a theoretical basis of designing a composite shaft - hub connec- tion structure which meets the requirement of aero product.