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首页> 外文会议>AHS 59th Annual Forum Proceedings Vol.1 May 6-8, 2003 Phoenix, Arizona >Development of cost effective tools for the design of crashworthy helicopter structures
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Development of cost effective tools for the design of crashworthy helicopter structures

机译：开发具有成本效益的工具以设计耐撞直升机结构

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The paper deals with the assessment of cost effective numerical methodologies for the prediction of full-scale composite helicopter crashworthiness. This cooperative work, achieved by ONERA ― French aerospace research establishment -, EUROCOPTER ― helicopter manufacturer - and MECALOG/EUROSIM - developer of the Finite Element crash code RADIOSS - consisted in developing the Finite Element model of the TIGER helicopter central structure, including the main rotor mass, the weapon supporting wings, the under-floor energy absorption components and the fuel tanks, to simulate its drop test and to validate the modeling methodologies by comparing numerical results to experimental data coming from a crash test previously conducted on the modeled structure. Three models were elaborated depending on how fuel masses were modeled and interacted with the structure, and were run on multi-processors computers. Calculations proved to offer satisfactory correlation with experimental data, in terms of rupture modes, fuel pressures or acceleration levels.
机译：本文讨论了用于全面复合材料直升机防撞性预测的经济有效数值方法的评估。这项合作工作由法国航空航天研究机构ONERA，直升机制造商EUROCOPTER以及有限元坠毁代码RADIOSS的开发商MECALOG / EUROSIM共同完成，主要是开发TIGER直升机中央结构的有限元模型，包括主要转子质量，武器支撑机翼，地板下的能量吸收组件和油箱，以模拟其跌落试验并通过将数值结果与先前对模型结构进行的碰撞试验得出的实验数据进行比较，从而验证模型方法。根据如何对燃料质量进行建模以及如何与结构交互，详细阐述了三种模型，并在多处理器计算机上运行。在破裂模式，燃油压力或加速水平方面，计算证明与实验数据具有令人满意的相关性。

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