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Design of filament-wound isotensoid pressure vessels with unequal polar openings

机译：极孔不相等的绕丝等张压力容器的设计

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摘要

Previous studies on filament-wound isotensoids are mostly based on geodesic winding. However, the geometry of geodesics is certainly limiting the available design space. A typical restriction is the inability to create isotensoids with unequal openings at both ends. In this paper, a simplified method for designing isotensoid pressure vessels with unequal polar opening is outlined, using non-geodesic trajectories. Firstly we present the non-geodesic equations on general shells of revolution. Next, a direct relation among the shell curvatures, roving force, internal pressure and slippage coefficient, as a basis for determining non-geodesics-based isotensoid shapes, is provided. The governing equations for specifying meridian profiles are derived in terms of the slippage coefficient. The meridian profiles of non-geodesics-based isotensoids corresponding to various opening radii and slippage coefficients are determined, and the performance factors of the obtaining domes are calculated to demonstrate the effect the application of non-geodesics has on the structural efficiency. A stable and easily accessible solution procedure is proposed to determine the slippage coefficients fulfilling the winding requirements. Results show that the present method is suitable for the design of isotensoid structures with unequal polar openings. Results also indicate that the non-geodesics-based isotensoid domes show better performance than the geodesic-isotensoid.
机译：以前关于细丝缠绕的等张体的研究主要基于测地线缠绕。但是，测地线的几何形状肯定会限制可用的设计空间。一个典型的限制是无法创建两端都具有不相等开口的等张体。在本文中，概述了使用非大地运动轨迹设计不等极性开口的等张压力容器的简化方法。首先，我们介绍了一般旋转壳上的非测地方程。接下来，提供壳曲率，粗纱力，内部压力和滑移系数之间的直接关系，作为确定基于非大地测量学的等张体形状的基础。根据滑移系数推导了用于指定子午线轮廓的控制方程。确定了与各种张开半径和滑移系数相对应的非大地基等压线的子午线轮廓，并计算了获得的穹顶的性能因子，以证明非大地基方法的应用对结构效率的影响。提出了一种稳定且易于访问的解决方案，以确定满足绕组要求的滑移系数。结果表明，本方法适用于极性开口不相等的等张结构的设计。结果还表明，基于非大地测量学的等高体穹顶比大地测量学的等高体具有更好的性能。

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  • 来源
    《Composite Structures》 |2010年第9期|2307-2313|共7页
  • 作者

    Lei Zu; Sotiris Koussios; Adriaan Beukers;

  • 作者单位

    Design and Production of Composite Structures, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The Netherlands;

    rnDesign and Production of Composite Structures, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The Netherlands;

    rnDesign and Production of Composite Structures, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The Netherlands;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    composite materials; pressure vessels; filament winding; isotensoids; non-geodesics;

    机译：复合材料;压力容器;灯丝缠绕等张体非大地测量学;

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