李瑞雄, 陈务军, 付功义, 赵俊钊. 透镜式缠绕肋压扁缠绕过程数值模拟及参数研究[J]. 工程力学, 2011, 28(11): 244-250.
引用本文: 李瑞雄, 陈务军, 付功义, 赵俊钊. 透镜式缠绕肋压扁缠绕过程数值模拟及参数研究[J]. 工程力学, 2011, 28(11): 244-250.
LI Rui-xiong, CHEN Wu-jun, FU Gong-yi, ZHAO Jun-zhao. NUMERICAL SIMULATION AND PARAMETRIC STUDY ON FLATTENING AND WRAPPING PROCESS OF LENTICULAR WRAPPED-RIB[J]. Engineering Mechanics, 2011, 28(11): 244-250.
Citation: LI Rui-xiong, CHEN Wu-jun, FU Gong-yi, ZHAO Jun-zhao. NUMERICAL SIMULATION AND PARAMETRIC STUDY ON FLATTENING AND WRAPPING PROCESS OF LENTICULAR WRAPPED-RIB[J]. Engineering Mechanics, 2011, 28(11): 244-250.

透镜式缠绕肋压扁缠绕过程数值模拟及参数研究

NUMERICAL SIMULATION AND PARAMETRIC STUDY ON FLATTENING AND WRAPPING PROCESS OF LENTICULAR WRAPPED-RIB

  • 摘要: 利用ABAQUS 首先建立了透镜式复合材料缠绕肋整体压扁缠绕有限元模型,实现了压扁缠绕非线性数值模拟分析,并得到应力特征。进而对复合材料缠绕肋不同材料参数(铺设角度、层数、厚度)和不同几何参数(卷轴直径、肋圆弧直径、扁平率)下整体缠绕过程进行了数值模拟分析,并比较分析各种情况下的应力特征,得到各种情况下缠绕肋缠绕过程应力、应变及变化规律,以及缠绕弯矩。该文对缠绕肋截面的合理设计及系统样机的研制具有指导和参考价值。

     

    Abstract: By using ABAQUS package, a complete finite element model was built for the flattening and wrapping process of a CFRP composite lenticular wrapped-rib, the strong nonlinear numerical simulation analysis was achieved successfully, and the structural behavior was evaluated comprehensively. The parametric study was carried out subsequently through the analysis of a whole flattening and wrapping process, including different parameters for CFRP composite (ply lay-out, layers, thickness) and different geometrical parameters (reel diameter, sectional diameter, flatness ratio) of the lenticular wrapped-rib. The structural characteristics were investigated and compared for each case, and the essential behavior features were obtained for each case, such as the stress, strain, energy and wrapping moment. The numerical procedure and results are available to the rational design of the wrapped-rib and development of a prototype.

     

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