The utility model relates to a noise reduction structure of a hexagonal honeycomb material, which can be used for aircraft, automobiles, ships and building equipment. The main noise reduction structure is Aluminum Alloy honeycomb core structure, the Aluminum Alloy honeycomb core structure is composed of hexagonal honeycomb and circular honeycomb composed of hexagonal aluminum honeycomb is the main shape of the honeycomb structure, in order to achieve better noise reduction effect, joined the circular honeycomb structure between hexagonal honeycomb. The circular honeycomb core is on the common edges of the three adjacent positive hexagonal honeycombs. The honeycomb core denoising structure is covered with carbon fiber laminates at both ends. The structure of the honeycomb core and the size parameters of the carbon fiber laminates can be changed in production according to the performance requirements, such as the number and radius of the circular honeycomb. This kind of honeycomb composite material plate and its honeycomb core structure make the difficulty of designing and manufacturing the noise reducing performance greatly.
【技术实现步骤摘要】
一种正六边形蜂窝材料的降噪结构
本技术涉及一种正六边形蜂窝材料的降噪结构,该结构的蜂窝复合材料板除了具有传统蜂窝材料较高的比强度和比模量以外,加入了圆形蜂窝结构,可以更简便地提高其降噪性能,属于航空航天复合材料
技术介绍
蜂窝复合材料类似于连续排列的工字钢结构,具有极佳的抗压、抗弯特性和较高的比强度和比模量。与同样材质的实心材料相比时,在承载能力相同的情况下,蜂窝结构比的重量轻70%-90%以上,所以蜂窝材料被广泛应用于航空、航天飞行器和高速列车的结构,因为蜂窝材料还具有减震、隔音、隔热和极强的耐候性等优点,蜂窝材料还被用于住房、娱乐场所等建筑的隔热、隔音建材来使用。复合材料性能的设计性一直是复合材料的一大优势,蜂窝复合材料也不例外。蜂窝复合材料可以通过改变蜂窝芯和上下薄板的尺寸来改变蜂窝板的性能。但是,对于蜂窝板降噪性能的设计,一直是一个难题。蜂窝板降噪隔音的原理是,声音传播至蜂窝芯壁板时,声波会在无数的小蜂窝空间里往返振动,这相当于增加了好多层隔音板材,声能损耗成机械能和热能,达到降噪效果,降噪效果与蜂窝形状、尺寸相关。现在的蜂窝材料,如规则排列的正 ...
【技术保护点】
一种正六边形蜂窝材料的降噪结构,包括上下碳纤维层合板(1)、蜂窝芯(2)组成;其特征在于:上下碳纤维层合板(1)覆盖在蜂窝芯(2)两端,与蜂窝芯(2)间进行胶接;蜂窝芯(2)由正六边形蜂窝(3)和圆形蜂窝(4)组成。
【技术特征摘要】
1.一种正六边形蜂窝材料的降噪结构,包括上下碳纤维层合板(1)、蜂窝芯(2)组成;其特征在于:上下碳纤维层合板(1)覆盖在蜂窝芯(2)两端,与蜂窝芯(2)间进行胶接;蜂窝芯(2)由正六边形蜂窝(3)和圆形蜂窝(4)组成。2.根据权利要求1所述的一种正六边形蜂窝材...
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