双稳态结构驱动的可变形机翼模型研究  

Research on the Morphing Airfoil′s Model Drived by the Bistable Composite Structure

作　　者：张征[1] 吴和龙[1] 吴化平[1] 鲍雨梅[1] 

机构地区：[1]特种装备制造与先进加工技术教育部/浙江省重点实验室(浙江工业大学),浙江杭州310014

出　　处：《轻工机械》2012年第1期39-42,47,共5页Light Industry Machinery

基　　金：国家自然科学基金项目(11002126);浙江省自然科学基金项目(Y1100108);浙江省自然科学基金项目(Y6100425);浙江省教育厅项目(Y201018497);浙江工业大学校级科学研究基金(20100207)

摘　　要：探讨可变形机翼中使用双稳态复合材料层合壳结构驱动其变形的潜力。基于最小势能原理,采用有限元法对不同铺层形式、不同材料组分的反对称双稳态复合材料层合壳的力学模型进行了数值模拟和详细讨论,计算确定结构几何尺寸和材料参数对结构卷曲半径的定量影响程度。进而,运用研究得到的层合壳的结构性能,对三种机翼变形方式包括机翼的弯曲变形、平面变化和弦长改变采用双稳态结构驱动进行了分析和讨论,初步探讨其应用于可变形机翼的适用性,并给出一些有益的结果。The deformative potential of using bistable laminated composite structures for morphing airfoil section was investigated in the paper. Based on the principle of minimum potential energy, the different kinds of lay-ups and material components were simulated successfully by finite element method and then discussed in detail about the anti- symmetric lay-up bistable composite shell structures. The quantitative influence of the curvature radii by the geometry climensions and material parameters through finite element simulation were discussed. Using the obtained structure properties of the anti-symmetric lay-up shell, three kinds of shape morphing wings including the span-wise bending, zhord length change and span change were analyzed and discussed. The primary inquiry shows that the bistable composite structure can be used to drive the morphing airfoil with some beneficial results.

关 键 词：可变形机翼 双稳态 复合材料层合壳 有限元数值模拟 反对称 

分 类 号：TB33[一般工业技术—材料科学与工程]