基于铺覆模拟的复合材料螺旋桨叶片分区域铺层优化  

Regional Stacking Sequence Optimization of Composite Propeller Blade Based on Draping Simulation

作　　者：李雪芹 郭双喜 陈科 LI Xueqin;GUO Shuangxi;CHEN Ke(National key laboratory of advanced composites,Composites Center of AVIC Manufacturing Technology Institute,Beijing 101300;Naval Research Academy,Beijing 100161)

机构地区：[1]先进复合材料重点实验室,中国航空制造技术研究院复合材料技术中心,北京101300 [2]海军研究院,北京100161

出　　处：《宇航材料工艺》2022年第1期45-51,共7页Aerospace Materials & Technology

基　　金：国家重点研发计划资助(2017YFB0703300);国防基础科研计划项目资助(JCKY2019205C002)。

摘　　要：为了提高复合材料螺旋桨叶片的结构刚度,分区域优化设计了叶片复合材料结构的铺层角度。根据螺旋桨叶片的厚度和载荷条件,将其划分为4个区域。铺层优化以0°、45°、90°及-45°四个方向的铺覆在各个区域的模拟结果为基础。与初始的铺层方案[0/45/0/-45]sn相比,优化后叶片的铺层方案能使铺层的主方向接近叶片各截面中心点的连线。优化后螺旋桨叶片的1阶和3阶频率提高超过了25%,2阶频率提高超过了5%;表面均布载荷下叶片变形减小了50%,热载荷下叶片变形减小了约25%;优化达到了提高叶片结构刚度的预期效果。分区域优化的方法既利用了复合材料的可设计性又提高了优化效率,适用于复杂复合材料结构的铺层优化。In order to increase structural stiffness of propeller blade,stacking orientation in different regions of the composite propeller blade was optimized respectively.The blade was divided into 4 zones according to its thickness and load condition.Stacking optimization was based on draping simulation results of different zones in the propeller blade,fiber orientation in draping simulation was 0°,45°,90°and-45°.Compared with the initial layup scheme of[0/45/0/-45]sn,the optimized blade layup scheme made the main direction of the laminate close to the line connecting the centre points of each section of the blade.The 1st and 3rd natural frequencies of propeller blade were raised by more than 25%,the 2nd natural frequency was raised by more than 5%.Displacement of propeller blade under uniformly distributed pressure loads was reduced by 50%,and displacement under thermal loads was reduced by 25%.The expected objective of increasing structural stiffness of blade is achieved by layup optimization.The method of optimization by region not only utilizes the designability of composite materials but also improves the optimization efficiency.It is suitable for layup optimization of complex composite structures.

关 键 词：铺层优化 螺旋桨叶片 复合材料 铺覆模拟 有限元分析 

分 类 号：TB332[一般工业技术—材料科学与工程]