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    • 73. 发明公开
    • METHODS AND APPARATUS FOR DIGITAL COMPOSITES
    • VERFAHREN UND VORRICHTUNGFÜRDIGITALE VERBUNDWERKSTOFFE
    • EP2630603A4
    • 2015-03-18
    • EP11846817
    • 2011-10-19
    • MASSACHUSETTS INST TECHNOLOGY
    • GERSHENFELD NEILCHEUNG KENNETH
    • B32B5/12B32B5/26B64C1/08B64C3/48E04B1/19
    • B23P11/00B32B5/12B32B5/26B64C1/06B64C1/08B64C3/48Y10T29/49826Y10T29/49828Y10T428/24Y10T428/24008
    • In exemplary implementations of this invention, a digital material comprising many discrete units is used to fabricate a sparse structure. The units are reversibly joined by elastic connections. Each unit comprises fiber-reinforced composite material. Each unit is small compared to the sparse structure as a whole. Likewise, in a sparse structure made from this digital material, the number of types of units is small compared to the total number of units. The digital material is anisotropic. This anisotropy may be due to different fiber orientations within each unit. Furthermore, different units in a single sparse structure may be oriented in different directions and in different, non-parallel planes. In some cases, the digital material is reinforced with carbon fibers, and connections between units are stronger than the units themselves. The small discrete units may be assembled into a strong, lightweight sparse structure, such as an airframe.
    • 在本发明的示例性实施方案中,使用包含许多分立单元的数字材料来制造稀疏结构。 这些单元通过弹性连接可逆地连接。 每个单元包括纤维增强复合材料。 与整体稀疏结构相比,每个单位都很小。 同样,在由这种数字材料制成的稀疏结构中,与总单元数相比,单元类型的数量很小。 数字材料是各向异性的。 这种各向异性可能是由于每个单元内的纤维取向不同。 此外,单个稀疏结构中的不同单元可以在不同的方向和不同的非平行平面中取向。 在某些情况下,数字材料用碳纤维增强,单元之间的连接比单元本身更强。 小型分立单元可以组装成强大的,轻质的稀疏结构,例如机身。
    • 75. 发明公开
    • LUFT- ODER RAUMFAHRZEUGHÜLLE
    • 空气或其他空间飞行器COVER
    • EP2454151A2
    • 2012-05-23
    • EP10801421.8
    • 2010-12-30
    • IMA Materialforschung und Anwendungstechnik GmbH
    • GOETZE, Matthias
    • B64C1/06
    • B64C1/068B64C1/08B64C1/1492Y10T428/13
    • The invention relates to an aircraft or spacecraft casing, comprising a composite shell (1) made of first rod elements (111, 112) or sandwich core elements and first skin elements (12), which are connected to the first rod elements or sandwich core elements such that all exterior loads are received jointly by the first rod elements or sandwich core elements and the first skin elements, the composite shell having at least one opening for a window, a door or the like, characterized in that in the opening of the composite shell a rod supporting structure (2) made of at least two groups of second rod elements (211, 212, 213) is arranged, wherein second rod elements belonging to the same group are arranged parallel to each other, and second rod elements belonging to different groups are arranged non-parallel to each other, the second rod elements are connected to the composite shell at the edge of the opening and a second skin element is arranged in each partial opening delimited by second rod elements such that the free edges of the second skin element are free of bending moments and tangential forces, so that all exterior loads are redirected solely from the second rod elements into the composite shell.