复合材料基镂空网壳结构的建模与仿真

发布时间：2018-01-10 00:04

  本文关键词：复合材料基镂空网壳结构的建模与仿真　出处：《材料科学与工艺》2017年05期 　论文类型：期刊论文

  更多相关文章： 复合材料 测地线 网壳结构 数学建模 MATLAB仿真

【摘要】：为进一步挖掘复合材料构件的轻量化和成型形态等结构特性,提出了突破传统满铺结构的曲面镂空等厚度网壳构件的数学模型,并对其成型表面的形态和效果进行了实验验证.运用三维空间曲面映射法建立笛卡尔参数坐标系,在单位球面上建立并推导了网壳构件曲面测地线弧及测地线交角的高斯第I基本型模型,利用MATLAB对该模型的正交编织算例进行了仿真和构型验证.结果表明:除仿真构件边缘平齐一致性不足外,该仿真构型与预期结果构型轮廓相符.为进一步验证该模型用于实际生产制造的可行性,采用预浸纤维复合材料带为基材,经编织、固化生产出该模型的5×5网壳结构成品试件.该研究为复合材料壳体超轻化且低成本结构成型提供了新思路,可为网壳类结构制件的支撑筋/骨架设计提供建模新方法.
[Abstract]:In order to further excavate the structural characteristics of composite components, such as lightweight and shape, a mathematical model is proposed to break through the traditional overlay structure, such as curved surface hollow-out and other thick reticulated shell members. The shape and effect of the molded surface are verified by experiments. The Cartesian parametric coordinate system is established by using the three-dimensional space surface mapping method. The Gao Si I basic model of the surface geodesic arc and the intersection of geodesic lines of reticulated shell members is established and deduced on the unit sphere. The simulation and configuration verification of the orthogonal braiding model is carried out by using MATLAB. The results show that except for the lack of the consistency of the edge alignment of the simulation components. In order to verify the feasibility of the model used in practical manufacture, prepreg fiber composite material is used as substrate and braided. The 5 脳 5 reticulated shell structure finished sample is produced by curing the model. The research provides a new idea for ultra-light and low cost structural molding of composite shell. It can provide a new modeling method for the design of bracing bar / skeleton of reticulated shell structure.
【作者单位】： 哈尔滨理工大学机械动力工程学院;哈尔滨学院信息工程学院;江苏恒神股份有限公司工程技术中心;
【基金】：黑龙江省自然科学基金资助项目(E201301) 哈尔滨市优秀学科带头人项目(2016RAXXJ013) 哈尔滨市杰出青年人才专项基金项目(RC2016JQ009005)
【分类号】：TB33
【正文快照】： 3.江苏恒神股份有限公司工程技术中心,江苏丹阳212314)相比于金属材料,复合材料以其比模量高、比刚度大、可设计性强和环境鲁棒性好等优质特性,在航空、航天、汽车、舰船、机械、土建以及军事等实际工程中得到广泛应用[1-3],而复合材料结构体(如雷达整流罩、飞机头部等)的应用，

本文编号：1403043