CN102143839A - 具有整合的增强结构的夹心板及其制造方法 - Google Patents

具有整合的增强结构的夹心板及其制造方法 Download PDF

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CN102143839A
CN102143839A CN200980134543.XA CN200980134543A CN102143839A CN 102143839 A CN102143839 A CN 102143839A CN 200980134543 A CN200980134543 A CN 200980134543A CN 102143839 A CN102143839 A CN 102143839A
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core
filled board
core texture
space
texture
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CN102143839B (zh
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马努埃拉·里希特
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Airbus Operations GmbH
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Airbus Operations GmbH
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Abstract

本发明涉及一种夹心板(19)，具有核心结构、特别是蜂窝形的核心结构(20)，以及具有在两面敷设到核心结构上的、平面平行的盖层(21、25)，用于形成飞机机身单元中的地板面。核心结构按照本发明具有至少一个空隙(22)，至少一个增强结构(1、11、18)整合到所述空隙中。由于置入空隙(22)的特别是型面配合和材料配合地粘接的增强结构(1、11、18)，夹芯板(19)具有较高的承载能力，而不必相对于通常在飞机建造中采用的夹芯板提高外部尺寸、特别是高度。因此，可以借助于公知的硬点将较重的构件、比如厨房、卫生或清洁模块直接固定到夹芯板上。此外，客舱的外观、特别是模块的位置在不耗费地改变地板支架的情况下可灵活变化，这是因为夹芯板可以置入通常采用的地板支架、此外，本发明还涉及一种用于制造按照本发明的夹芯板(19)的方法。

Description

具有整合的增强结构的夹心板及其制造方法
技术领域
本发明涉及一种夹心板，具有核心结构、特别是蜂窝形的核心结构以及具有在从两面敷设在该核心结构上的、平面平行的盖层，用于形成飞机机身中的地板面。
背景技术
承载旅客的飞机的机身单元通常设计有至少一个地板架，其主要用于形成可行走的地板面。地板架由大量平行地先后设置的以及垂直于飞行方向设置的横梁构成，横梁与机身单元结构的环形肋连接。在机身单元的纵向上设置在横梁上相互间隔的平行延伸的座位导轨异型件，其主要用于固定乘客座位且此外还提高地板架的刚度。通常在座位导轨异型件之间插入大量地面板，其通常以具有大约1cm厚度的夹心板构成。地面板提供通常蜂窝形的核心结构，其两面敷设有盖层。地面板的核心结构通常以
Figure BPA00001328158900011
纸构成，而盖层以纤维增强的合成材料比如玻璃纤维增强的酚醛树脂或碳纤维增强的环氧树脂制成。
为了满足乘客增长的舒适度要求，现代飞机设计有多个、在客舱中分布设置的卫生清洁单元和厨房单元。在卫生设备和厨房设备的区域中作用有较高的负载，其必须由地面板或位于地面板下方的地板架接收并且导入机身单元结构中。厨房模块或卫生模块至地板架上的连接通常借助于所谓的“硬点(Hardpoints)”实现，该硬点是由模块至位于其下的结构中的逐点的力传导以及同时允许对于连接的公差补偿。
按照现有技术的标准，厨房模块、清洁模块和卫生模块固定到在地面板下方延伸的支架上，该支架在两个横梁之间在飞机的纵向上延伸。在该支架中可以将模块的“硬点”比如直接拧入。
但模块的空间位置的改变在这种固定方式的情况下仅通过地板架的广泛修改来实现。因此针对乘客的改变需求仅可以以大大提高的设计费用来实现，这是因为地板架必须与改变的轿厢布局相匹配。
发明内容
因此本发明的目的在于，提出一种夹心板，在其上可以直接固定卫生模块、清洁模块和/或厨房模块并且其几何尺寸包括结构高度与已知的标准地面板没有区别。
该目的通过具有权利要求1的特征的夹心板实现。
由于使核心结构具有至少一个至少局部的空隙(在该空隙中整合增强结构)，可以在根据本发明设计的夹心板上直接固定具有较高重量的厨房模块、清洁模块或卫生模块，无需其它的辅助措施。取消了将附加的支架拉入地板架中。相比于标准使用的地板不具有局部的加厚或隆起(凸出部分)。
因此可以将飞机客舱的布局、特别是在地板架上的卫生模块和厨房模块的空间定位可以容易地以及快速地改变。不再需要地板架与模块改变的位置的广泛的设计上的匹配，这是因为根据本发明的夹心板可以位置变化地以及通用地在所有区域中沿地板架敷设。因此夹心板可以在飞行方向上、即平行于飞机的纵向(x轴)最大可能地自由定位。
通过至少一个局部地整合在核心结构中的增强结构特别是如下增强了夹心板的核心结构，即可以接收垂直于以及平行于板顶面作用的力。
夹心板的一种改进方案在于，至少一个增强结构以至少一个核心构成。
在已知的夹心板中核心结构的主要任务在于，在通过盖层实现力传递时将盖层以固定的间隔相互保持。通过将增强结构直接整合到核心结构中，根据本发明的夹心板也可以直接接收垂直于板平面作用的压力。
夹心板的另一种改进方案在于，核心至少局部地具有至少一根带，带以预浸材料构成，其增强纤维各具有特别是±45°的统一的延伸方向。
由此改进了核心的机械强度、特别是其传递剪力的性能。
所使用的预浸材料优选为狭窄的带，其包括分别具有统一的纤维延伸方向的增强纤维结构。核心以大量这种交替地具有+45°和-45°的纤维定向的预浸带缠绕，用以实现在剪切方向上的较高的可承载性。预浸材料由增强纤维构成，其以可硬化的合成材料、比如环氧树脂、聚酯树脂或酚醛树脂预浸渍。作为增强纤维特别是考虑碳纤维、玻璃纤维、芳
Figure BPA00001328158900021
纤维。预浸材料通常已经保持在较大的辊子上并且可以从其上轻易地抽取，从而可以使核心的缠绕自动化并且整合在已有的连续的夹心板制造工艺中。
本发明的另一种改进方案在于，至少一个增强结构至少局部地具有至少一个平面的下料，其中，至少一个下料以预浸材料构成，其增强纤维具有0°和/或90°的延伸方向。
由于该设计使得缠绕的核心也可以承载拉力。原则上可以根据为夹心板(地面板)设置的、提升的负载的需要以分别具有+45.0°和90°的延伸方向的预浸材料的任意顺序来缠绕核心，只要核心的几何尺寸允许无折叠的悬垂以及预浸渍的增强纤维层的无间隙的堆布。由具有0°或90°的纤维定向的预浸材料构成的下料由于具有较大的宽度通常仅可以在核心纵轴和横轴的方向上敷设到核心上，用以避免由于延迟引起的褶皱。可替代的是，在释放环围的边棱的情况下可以将下料至少局部地敷设到核心的顶面和/或底面上。
根据另一种设计方案的标准，至少一个增强结构可至少局部地型面配合地置入核心结构内部的空隙中并且与空隙形成材料配合(Stoffschluss)。由此实现了在增强结构和包围的夹心板之间的高效的力传导。通过以还未硬化的预浸材料缠绕核心，不一定非要将核心粘入空隙中。可替代的是，增强结构还额外地通过合适的粘接剂与核心结构粘接。为了进一步提高强度可以将以可硬化的合成材料构成的填充物置入核心结构的边缘区域中，即置入关闭小室式的蜂窝中，该蜂窝包围增强结构。增强结构的高度尽可能准确地与其余的夹心板的核心结构的高度一致，从而将增强结构在理想情况下几乎以完全的型面配合以及材料配合植入夹心板的包围的核心结构中并且避免了增厚(由于凸出部分形成的隆起)。
根据夹心板的另一有利的设计方案至少一个核心以核心结构、特别是以蜂窝形的核心结构和/或以硬泡沫构成。
蜂窝形的核心结构的应用(其也用于其余的夹心板)实现了简化的制造过程，这是因为需保存的原材料更少。在特别有利的方式中核心可以由从核心结构中切下的部分构成，其中，其外部尺寸减少一个值，该值相当于稍后待敷设的增强层的材料厚度。这里核心的表面几何尺寸大致与夹心板的核心结构内部的空隙的表面几何尺寸一致。
夹心板的另一有利的改进方案在于，增强结构通过由至少两个增强结构的组合构成。
由于该设计可以形成具有复杂的表面几何结构的增强结构，该复杂的表面几何结构通过结合至少两个具有简单的基本几何结构的增强结构而成。具有简单的几何结构的增强结构的核心可以与所需的增强层分开地在在优化力线的延伸方向上敷设或缠绕。此外，将复杂的增强结构划分成多个具有简单的几何结构的增强结构使得预浸带无褶皱地悬垂到核心上变得容易。
通过比如长方体形的核心与长方体形设计的、但具有倾斜的梯形侧面的核心(所谓的“方尖碑”)的结合，可以以特别有利地方式构建增强结构，其中，最大可能地避免了在之后的夹心板中的缺口应力的出现。通常该空隙具有矩形的几何结构。
根据另一有利的设计方案，至少一个增强结构具有至少一个填塞件、特别是圆柱形填塞件。
由此在增强结构内部提供针对“硬点”、比如插入件、两面的螺栓夹紧套筒等等的集成区域，由此可以实现构件、比如厨房模块到夹心板上的直接的机械连接。填塞件通常是预制的。圆柱形的填塞件通过大量相叠设置的由在加工时间点未完全硬化的纤维增强的预浸材料制成的圆形分段构成。在将增强结构植入或粘接到最初至少还在上部敞开的核心结构以及敷设上部盖层之后，将整个结构包括填塞件同时地通过采用压力和/或温度来进行硬化。圆柱形的填塞件具有在10mm和200mm之间的直径，从而在增强结构中设计相应的凹陷或孔。之后填塞件以具有±45°的增强纤维层的预浸带以及带状的、通常具有0°或90°位置的矩形下料来遮盖。
此外，根据本发明的目的还通过按照专利权利要求11所述的用于制造具有核心结构、特别是具有蜂窝形的核心结构的夹心板、特别是按照专利权利要求1至10的措施所述的夹心板的标准实现的方法，该核心结构的两面配有平面平行的盖层，具有以下方法步骤：
a)将至少一个空隙置入核心结构中，
b)将由纤维增强的预浸材料构成的带敷设到至少一个用于形成至少一个增强结构的核心之上，增强结构可以至少局部地型面配合地置入至少一个空隙中以形成材料配合，
c)将盖层从两面敷设到核心结构上，以及
d)在采用压力和/或温度的情况下硬化至少一个增强结构以及盖层。
通过在从两面敷设盖层之前、即在还敞开的夹心板中在事先设置于核心结构中的空隙中就已经置入至少一个增强结构，可以将至少一个增强结构整合到夹心板中。增强结构可以根据需要粘接到空隙(Einsparung)中。由于齐平的植入使得无需再改变夹心板的标准结构高度或为了提高力承载性能局部地增厚夹心板。
按照该方法的措施在方法步骤a)中首先在核心结构中留出空隙，该空隙的深度在核心结构的整个高度上延伸，用以实现增强结构的齐平的闭合。该空隙可以具有近似任意的几何形状，但通常具有长方体形状，该长方体具有垂直的和/或至少两个相对立的倾斜的边棱。在接下来的方法步骤b)中在核心上存放大量的由带状的预浸材料制成的增强结构。这里优选至少两个不同的预浸带，它们分别交替以+45°或-45°的不同的纤维定向卷绕在核心上。
(支撑)核心本身比如由硬泡沫材料构成。可替代的是，核心也可以由与为了形成夹心板的核心结构所使用的材料相同的材料制成，比如蜂窝形设计的
Figure BPA00001328158900051
纸。附加的是，核心的顶面和/或底面以其它的增强纤维层敷设，其中增强纤维优选具有0°或90°的延伸方向。关于预浸带中的增强纤维的延伸方向的角度确定为在预浸带的纵向或其平行的外缘和增强纤维的纵向之间的角度。预浸带堆布到核心上的敷设角度或堆布角度与此区分开来。在带的纵向和构件边棱之间确定的角度不是恒定的并且可以根据堆布地点的不同发生改变。
接下来将这样预备好的核心植入夹心板的核心结构的空隙中，用以实现增强结构的型面配合和材料配合的整合。
夹心板的环围的核心结构的邻接在核心上的区域可以配有可硬化的填充物，用以改善从增强结构到核心结构中的力传导。填充物优选由可硬化的合成材料、比如由必要时纤维增强的或通过另一种方式稳定的环氧树脂、聚酯树脂或酚醛树脂构成，在方法步骤c)中从两面将盖层敷设到核心结构上。盖层通常与核心结构通过合适的粘接剂连接。最后在方法步骤d)中实现整个结构的硬化。增强结构、两个盖层以及可选的填充物位于没有硬化的、即仍可延展的状态中，直至方法步骤d)结束。
该方法的其它有利的设计在其它的专利权利要求中限定。
附图说明
下面参照附图根据优选的实施例描述本发明。其中：
图1为具有核心的长方体形的第一增强结构的俯视图，在核心上部分地敷设增强纤维层，
图2为具有在其下方竖直错开设置的第二增强结构的按照图1的增强结构的侧视图，第二增强结构具有近似梯形的横截面几何结构，
图3具有植入的按照图2的尺寸的增强结构的上部仍敞开的夹心板的一部分的俯视图，以及
图4为具有可容纳在其中的固定件(硬点)的圆柱形填塞件的横截面示图。
附图中同一种结构元件分别具有相同的附图标记。
具体实施方式
图1示出了第一增强结构的俯视图，其设置用于植入根据本发明的夹心板的核心结构中。
长方体形的第一增强结构1主要包括由大量蜂窝形单元构成的核心2(所谓的“蜂窝”)，其以大量的带3至6缠绕。核心2具有长方体形状，其中，侧表面在所有面上向内倾斜(以45°的角度倾斜)。带3至6由可硬化的、纤维增强的预浸材料构成，其增强纤维具有不同的延伸方向。带3和4由具有-45°的纤维延伸方向的增强纤维构成，而在其上卷绕的带5、6具有+45°的纤维延伸方向。带3至6以带状的下料7覆盖或包绕，下料同样由预浸材料构成。与带3至6不同，下料7中的增强纤维具有0°和/或90°的延伸方向。
此外，核心2在中部使用直径为90mm的圆柱形填塞体8。圆柱体填塞体8由大量相叠层状设置的由纤维增强的预浸材料制成的圆形分段构成。填塞体8的高度大致与核心2的高度一致，从而避免了夹心板形成凸起部分(即增厚)。在增强结构1的侧部的边缘部分中分别采用三个同样圆柱形的填塞体，其具有大约19mm的较小直径，但具有与填塞体8相同的高度，其中仅两个上部的相对立的填塞体9、10以附图标记示出。填塞体8用作稍后整合固定件(参见特别是图4)，特别是硬点、插入件、螺栓夹紧套筒等等，由此比如实现了在同时提供公差补偿的情况下将构件以螺栓连接的方式连接到根据本发明的夹心板上。
图2示出了按照图1的长方体形的增强结构1的侧视图，具有在其下方垂直错开示出的、具有梯形的横截面几何形状的第二增强结构。
由此实现了(整个)增强结构的复杂的几何结构，在其上还将存放的由预浸材料制成的增强纤维层在理想情况下可无褶皱地悬垂。
带3至6围绕核心2的外缘引导并且在所有面上包围核心。对于下料7同样如此。
第二增强结构11由长方体形的核心12构成。与第一增强结构1相同，核心12也由预浸材料制成的大量带13至16以及下料17在所有面上敷设或卷绕，该预浸材料具有±45°和0°和/或90°的纤维定向。填塞体8穿通两个增强结构，仅为了更好地附图展示起见将两个增强结构相互竖直错开地示出。
两个增强结构1、11组合成一个增强结构18并且在相应设计的空隙(参见图3)中整合到需制造的夹心板的核心结构中。
通常将增强结构11(如图2所示)在增强结构1下方定位在夹心板的核心结构的空隙中，从而一方面使长方体形的第一增强结构1贴靠在夹心板的上盖层上，而具有梯形横截面几何形状的第二增强结构11以较短的底面贴靠在下盖层上并且以较长的顶面贴靠在长方体形的增强结构1上。
两个增强结构1、11形成一个(总)增强结构18，其中，通过梯形设计的第二增强结构11使在随后的夹心板中的缺口应力最小化。此外可以将预浸材料轻易地围绕分开的增强结构悬垂(drapieren)或堆布。
图3示出了具有植入的增强结构的上部还敞开的夹心板的俯视图。
具有核心结构20的夹心板19在底面已经配有盖层21，向上还未以上盖层封闭。在空隙22中置入通过组合第一和第二增强结构1、11形成的复杂的增强结构18。由于两个增强结构1、11以粘附作用的、最初还未硬化的预浸材料缠绕，通常无需额外的粘接。空隙22设计成与增强结构18的表面几何形状配合准确，用以在不形成间隙或空穴的情况下型面配合地以及材料配合地(粘附地)实现整合，间隙或空穴会减小制成的夹心板的机械承载能力。这里更大的意义在于，需整合的增强结构18的高度尽可能准确地与采用的核心结构20的高度一致，从而避免夹心板19的不希望的增厚或局部的隆起。结果导致在增强结构18和边缘侧包围增强结构的核心2之间形成“型面配合的”粘接。
在图3的示图中还可见位于上方的下料7，其由带状的预浸材料构成，该预浸材料由具有0°和/或90°的纤维定向的增强纤维构成。在区域23中(在该区域中核心结构20邻接到增强结构18上)将合适的填充物24至少局部地置入核心结构20或蜂窝中。填充物优选由可硬化的合成材料制成，其必要时配有用于机械增强的装备。此外填塞件8以虚线示出，真是因为其完全被下料7遮盖。
图4描绘了具有在两面敷设的盖层的夹心板在较大面积的、中间的填塞件(参见图3)的区域中的横截面示图。
夹心板19配有盖层21、25。在盖层21、25之间具有带插入其中的填塞件8的增强结构18。在填塞件8中置入梯级孔26，其用作整合或固定固定装置27。固定装置27包括两个套筒28、29，其相互连接。在两个套筒28、29之间的连接可以比如通过组合的螺栓夹紧连接实现。左侧的套筒28具有螺纹孔30，未示出的用于连接另一构件、比如厨房模块的螺栓可拧入该螺纹孔中。
由于根据本发明整合到核心结构20中的增强结构18，夹心板19相比于通常用作地面板的夹心板的标准结构不变的外部几何尺寸的情况下具有较高的承载能力。
为了实施根据本发明的方法在第一方法步骤a)中将至少一个空隙22置入需形成的夹心板19的核心结构20中。空隙22的加工应以尽可能高的精密度实现，从而确保在理想情况下至少一个增强结构1、11、18的型面配合和材料配合的整合。空隙22的加工可以比如利用CNC-控制的铣床来完成。原则上可以将加工好的用于形成空隙22的分段用作稍后的增强结构1、11、18的核心。
之后可以将用于容纳填塞物的空隙或孔置入准备好的核心2、12中。填塞物由大量相叠层设的由最初仍较软的预浸材料构成的下料构成并且具有比如直径在10mm和200mm之间的圆柱体形状。
在另一方法步骤b)中将大量的分别由纤维增强的预浸材料构成的带3至6、13至16卷绕在核心2、12上。核心2、12可以比如由硬泡沫或和核心结构材料构成，其与用于提供夹心板19的核心结构20所采用的材料相同。在堆布过程中交替地将具有+45°纤维定向以及具有-45°纤维定向的带以围绕核心2、12的多个回转来堆布。随后将具有0°和/或90°纤维定向的由预浸材料构成的下料7堆布到核心2、12上。在理想情况下核心2、12完全被预浸材料包围。接下来将准备好的增强结构1、11、18置入空隙22中。可选地可以将核心结构20的连接到增强结构1、11、18上的区域、即相应的蜂窝以由可硬化的合成材料制成的填充物来填充用以更好地连接。比如将包围植入的增强结构1、11、18的具有直至2.0cm宽度的核心结构20的条带尽可能完全地以可硬化的填充物填充。可选地也可以粘入增强结构1、11、18。
在接下来的方法步骤c)中将盖层21、25从两面敷设在核心结构20上。在最后的方法步骤d)中实现在采用压力和/或温度的情况下在合适的装置中、比如炉膛或高压锅中实现总结构的硬化。原则上可以在置入空隙22之前就可以在一侧为核心结构20配设盖层21、25。
在方法步骤d)的硬化过程之后将孔或梯级孔置入填塞件中用以容纳用于将其它构件连接到夹心板上的固定装置。作为固定装置考虑比如插入件或夹紧螺栓套筒，其可固定在硬化后的填塞件中的孔中。
附图标记
1(第一)增强结构
2核心(蜂窝单元)
3带(预浸材料，-45°纤维定向)
4带(预浸材料，-45°纤维定向)
5带(预浸材料，+45°纤维定向)
6带(预浸材料，+45°纤维定向)
7下料(预浸材料，0°/90°纤维定向)
8填塞件(大)
9填塞件(小)
10填塞件(小)
11(第二)增强结构
12核心(蜂窝单元)
13带(预浸材料，-45°纤维定向)
14带(预浸材料，-45°纤维定向)
15带(预浸材料，+45°纤维定向)
16带(预浸材料，+45°纤维定向)
17下料(预浸材料，0°/90°纤维定向)
18增强结构(组合的)
19夹心板(地面板)
20核心结构
21(第一)盖层
22空隙
23区域
24填充物
25(第二)盖层
26梯级孔
27固定装置
28套筒
29套筒
30螺纹孔
权利要求书(按照条约第19条的修改)
1.一种夹心板(19)，具有核心结构、特别是蜂窝形的核心结构(20)，以及具有在两面敷设到核心结构上的、平面平行的盖层(21、25)，用于形成飞机机身单元中的地板面，其中，所述核心结构具有至少一个空隙(22)，至少一个增强结构(1、11、18)整合到所述空隙中，其特征在于，至少一个增强结构(1、11、18)由至少一个核心(2、12)构成，核心(2、12)具有至少一个凹陷，将填塞件(8-10)置入所述凹陷中，至少一个用于将至少一个其它的构件连接到夹心板上的固定装置(27)能够置入所述填塞件中，以及核心(2、12)由大量预浸带(3-6)缠绕，所述预浸带具有统一的纤维延伸方向。
2.根据权利要求1所述的夹心板(19)，其特征在于，所述统一的延伸方向为±45°。
3.根据权利要求1或2所述的夹心板(19)，其特征在于，至少一个增强结构(1、11、18)至少局部地配有至少一个平面的下料(7、17)，其中，至少一个下料(7、17)由预浸材料构成，其增强纤维具有0°和/或90°的延伸方向。
4.根据权利要求1至3中任一项所述的夹心板(19)，其特征在于，至少一个增强结构(1、11、18)能够至少局部地型面配合地置入核心结构(20)内部的空隙(22)中并且与空隙(22)形成材料配合。
5.根据权利要求1至4中任一项所述的夹心板(19)，其特征在于，至少一个核心(2、12)由核心结构、特别是蜂窝形的核心结构，和/或由硬泡沫构成。
6.根据权利要求1至5中任一项所述的夹心板(19)，其特征在于，至少一个增强结构(18)通过组合至少两个增强结构(1、11)构成。
7.根据权利要求1至6中任一项所述的夹心板(19)，其特征在于，所述填塞件(8-10)设计成圆柱形。
8.根据权利要求1或7所述的夹心板(19)，其特征在于，至少一个填塞件(8-10)由纤维增强的合成材料、特别是由大量平面平行地相叠分层设置的由预浸材料制成的圆形的层构成。
9.一种用于生产夹心板的方法，所述夹心板具有核心结构、特别是具有蜂窝形的核心结构(20)，所述核心结构在两面配有平面平行的盖层(21、25)，所述方法包括以下步骤：
将至少一个空隙(22)置入核心结构(20)中，
将至少一个凹陷置入至少一个核心(2、12)中，
将填塞件(8-10)置入核心(2、12)的凹陷中，
以由纤维增强的预浸材料构成的带(3-6、13-16)缠绕核心(2、12)用于形成至少一个增强结构(1、11、18)，
将所述增强结构(1、11、18)至少局部地型面配合地置入至少一个空隙(22)中以形成材料配合，
将盖层(21、25)从两面敷设到核心结构(20)上，
在采用压力和/或温度的情况下硬化至少一个增强结构(1、11、18)以及盖层(21、25)，
硬化过程结束后向至少一个填塞件(8)置入孔(22)，在所述孔中能够置入用于将至少一个其它的构件连接到夹心板上的固定装置。
10.根据权利要求9所述的方法，其特征在于，至少一个增强结构(1、11、18)至少局部地与空隙(22)粘接。
11.根据权利要求9或10所述的方法，其特征在于，盖层(21、25)在置入至少一个增强 结构(1、11、18)之前就已经连接到夹心板(19)的核心结构(20)上。

Claims (15)

1.一种夹心板(19)，具有核心结构、特别是蜂窝形的核心结构(20)，以及具有在两面敷设到核心结构上的、平面平行的盖层(21、25)，用于形成飞机机身单元中的地板面，其特征在于，所述核心结构具有至少一个空隙(22)，至少一个增强结构(1、11、18)整合到所述空隙中。
2.根据权利要求1所述的夹心板(19)，其特征在于，至少一个增强结构(1、11、18)由至少一个核心(2、12)构成。
3.根据权利要求1或2所述的夹心板(19)，其特征在于，至少一个核心(2、12)至少局部地配有至少一根带(3-6、13-16)，所述带由预浸材料构成，其增强纤维分别具有特别是±45°的统一的延伸方向。
4.根据权利要求1至3中任一项所述的夹心板(19)，其特征在于，至少一个增强结构(1、11、18)至少局部地配有至少一个平面的下料(7、17)，其中，至少一个下料(7、17)由预浸材料构成，其增强纤维具有0°和/或90°的延伸方向。
5.根据权利要求1至4中任一项所述的夹心板(19)，其特征在于，至少一个增强结构(1、11、18)能够至少局部地型面配合地置入核心结构(20)内部的空隙(22)中并且与空隙(22)形成材料配合。
6.根据权利要求1至5中任一项所述的夹心板(19)，其特征在于，至少一个核心(2、12)由核心结构、特别是蜂窝形的核心结构，和/或由硬泡沫构成。
7.根据权利要求1至6中任一项所述的夹心板(19)，其特征在于，至少一个增强结构(18)通过组合至少两个增强结构(1、11)构成。
8.根据权利要求1至7中任一项所述的夹心板(19)，其特征在于，至少一个增强结构(1、11、18)配有至少一个填塞件、特别是至少一个圆柱形的填塞件(8-10)。
9.根据权利要求8所述的夹心板(19)，其特征在于，在至少一个填塞件中能够置入至少一个固定装置，所述固定装置用于将至少一个其它的构件、特别是至少一个厨房模块或卫生模块连接到夹心板上。
10.根据权利要求8或9所述的夹心板(19)，其特征在于，至少一个填塞件(8-10)由纤维增强的合成材料、特别是由大量平面平行地相叠分层设置的由预浸材料制成的圆形的层构成。
11.一种用于生产夹心板、特别是按照权利要求1至10中任一项所述的夹心板(19)的方法，所述夹心板具有核心结构、特别是具有蜂窝形的核心结构(20)，所述核心结构在两面配有平面平行的盖层(21、25)，所述方法包括以下步骤：
a)将至少一个空隙(22)置入核心结构(20)中，
b)将由纤维增强的预浸材料构成的带(3-6、13-16)敷设到至少一个核心(2、12)上用于形成至少一个增强结构(1、11、18)，所述增强结构能够至少局部地型面配合地置入至少一个空隙(22)中以形成材料配合，
c)将盖层(21、25)从两面敷设到核心结构(20)上，以及
d)在采用压力和/或温度的情况下硬化至少一个增强结构(1、11、18)以及盖层(21、25)。
12.根据权利要求11所述的方法，其特征在于，在至少一个核心(2、12)中置入至少一个凹陷、特别是至少一个孔，用于插入至少一个填塞件(8-10)。
13.根据权利要求11或12所述的方法，其特征在于，至少一个增强结构(1、11、18)至少局部地与空隙(22)粘接。
14.根据权利要求11至13中任一项所述的方法，其特征在于，盖层(21、25)在置入至少一个增强结构(1、11、18)之前就已经连接到夹心板(19)的核心结构(20)上。
15.根据权利要求11至14中任一项所述的方法，其特征在于，硬化过程结束后在至少一个填塞件(8)中置入孔、特别是梯级孔(26)。
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JP2012501889A (ja) 2012-01-26
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US8741416B2 (en) 2014-06-03
WO2010026054A1 (de) 2010-03-11
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