By Rene J.Francillon
;Nakajima Ki-84 [Aircraft Profile 070] КНИГИ ;ВОЕННАЯ ИСТОРИЯ Название: Nakajima Ki-84 Автор: Rene J.Francillon Серия: airplane Profile 070 Издательство: Profile courses Ltd Страниц:12 Формат: PDF в rarЯзык: английский Размер: 5.87 Мб Для сайта: Мир книгИстребитель Тип four, «Хаяте» (с яп. — «ураган», «штормовой ветер» или "Фрэнк" по терминологии союзников), Накадзима Ки-84— японский армейский истребитель периода Второй мировой войны. Создан фирмой «Накадзима» в 1942—1943 годах для замены Ки-43 «Хаябуса». Признан военными специалистами лучшим серийным японским истребителем второй половины войны и одним из лучших поршневых истребителей своего времени. ifolder.ru.com zero
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Fibres have low bending and torsional rigidities, and they buckle easily. As the term implies, textile structural composites are rigid textile-containing materials designed for structural or load-bearing applications. The speciﬁc assemblage of ﬂexible ﬁbrous materials (ﬁbres, yarns and fabrics) is known as the textile composite preform. Textile preforms vary considerably in terms of ﬁbre orientation, entanglement and geometry. Moreover, a textile preform architecture can vary from a simple planar sheet to a complex three-dimensional (3D) net shape.
2011). Angle interlock structures are also of two types: through-thickness and layer-to-layer. Fig. 11 shows a typical example for each type of the 3D woven structures. The x- and y-yarns of the orthogonal and angle interlock structures are not interlaced, whereas the x-yarns are interlaced with both y- and z-yarns in the fully interlaced structure (Stig and Hallstr€om, 2012). The angle of the z-binder yarns can be adjusted to form a variety of angle interlock structures. 11 3D woven structures: (a) orthogonal; (b) through-thickness angle interlock; (c) layer-to-layer angle interlock; (d) fully interlaced.
Fig. 25 illustrates the 2D-weaving principle for manufacturing 2D conventional and 3D angle interlock woven structures. 3D hollow spacer structures with spacer yarns are produced by using a velvet face-to-face weaving technology. A velvet loom weaves warp and weft yarns into two separate ground fabrics simultaneously (face-to-face with a space between them), while pile warp yarns interlace alternately with the two separate ground fabrics (Fig. 26). 22 A hybrid ﬁbrous architecture by combining nonwoven fabric and DOS using warp-knitting technology.