碳纤维复合材料螺旋桨铺层角度研究

与传统的金属螺旋桨相比，碳纤维复合材料螺旋桨具有低振动、低噪音、轻质高效、耐海水腐蚀和易维修等特点。然而由于复合材料各向异性，碳纤维复合材料螺旋桨铺层角度对其性能有较大影响，因此，首先在Fluent中对螺旋桨进行桨叶压力分析，得到在设计工况下螺旋桨桨叶表面压力；其次对碳纤维复合材料螺旋桨进行铺层设计，得到了几种铺层方案，求解分析得到了铺层角度与碳纤维复合材料螺旋桨桨叶最大位移的关系；最后考虑到螺旋桨几何特征，对设计铺层方案的主铺层角进行了修正，修正作用使桨叶变形范围更大，为复合材料螺旋桨铺层角度设计提供了参考。

Ply Angle of Carbon Fiber Composite Propeller

Compared with traditional metal propellers , carbon fiber composite propellers are of low vibration , low noise, light and efficient , resistant to seawater corrosion , and easy to maintain .Because of anisotropy characteristics of composite materials , ply angles of carbon fiber composite propellers have a greater impact on its performance .Firstly, blade stress analysis was taken in Fluent and propeller surface stress was gained in the design conditions .And then, ply angle design of carbon fiber composite propellers was conducted; the relations between ply angle and carbon fiber composite propeller blades maximum displacement were obtained;and finally taking the geometric characteristics of the propeller into account , the ply angle was modified .It can provide a reference for the ply angle design of composite propeller .