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首页> 外文期刊>EPJ Web of Conferences >Bird strike on aircraft radome: Dynamic characterisation of quartz fibre composite sandwich for accurate, predictive impact simulations
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Bird strike on aircraft radome: Dynamic characterisation of quartz fibre composite sandwich for accurate, predictive impact simulations

机译：飞机天线罩上的鸟击：石英纤维复合材料三明治的动态表征，可进行精确的，预测性的冲击模拟

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This study assesses the bird strike resistance of the satellite communication (SatCom) radome of a medium altitude, long endurance (MALE) remotely piloted aircraft system (RPAS), which is designed as a lightweight sandwich structure with thin quartz fibre composite skins and a cellular honeycomb core. In order to perform accurate, predictive numerical bird strike simulations, the building block approach was applied, involving extensive experimental characterisation and model validation of the materials and structures from simple coupon level up to full-scale radome level. Coupon tests of the quartz fibre composite skin material under high-rate dynamic loading revealed significant strain rate effects, which needed to be taken into account in the simulation model in order to predict the structural response under high-velocity bird strike loading. In summary, this work presents a systematic and detailed approach for obtaining validated modelling methods for high-velocity impact analyses, which could be used efficiently for various design and parameter studies during the development of the SatCom radome.
机译：这项研究评估了中等高度，长时间耐力（MALE）远程驾驶飞机系统（RPAS）的卫星通信（SatCom）天线罩的抗鸟击性能，该系统设计为具有薄石英纤维复合材料外皮和蜂窝状结构的轻型三明治结构蜂窝芯。为了执行准确的，预测性的数值化鸟类打击模拟，应用了构建模块方法，涉及从简单的试块级到全面的天线罩级的材料和结构的广泛实验表征和模型验证。石英纤维复合表皮材料在高速动态载荷下的息票测试显示出显着的应变速率效应，在仿真模型中需要考虑到这一点，以便预测高速鸟击载荷下的结构响应。总而言之，这项工作为获得用于高速撞击分析的经过验证的建模方法提供了一种系统而详尽的方法，该方法可有效地用于SatCom雷达天线罩开发过程中的各种设计和参数研究。

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