先进复合材料结构的防雷设计概念

J. T. Kung, M. P. Amason
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引用次数: 1

摘要

石墨和硼环氧复合材料飞机结构如果设计不当,容易受到雷击破坏。传统的防雷设计理念需要改变,特别强调设计的轻量化、低成本和易于维护方面。本文介绍了两个新的设计概念:(1)隔离概念——将先进的复合材料结构与雷击电流路径完全隔离;(2)导电概念——使用石墨复合材料结构安全地导电雷击电流。通过正确使用这些和其他由工业开发的设计概念,先进的复合材料飞机结构可以充分保护免受雷击危害。给出了支持这两种设计理念的实验室模拟雷电试验数据。讨论了这些设计理念在DC-10复合舵设计中的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lightning Protection Design Concepts for Advanced Composite Structures
Graphite and boron epoxy composite aircraft structures are vul­ nerable to lightning strike damage if not properly designed. Conven­ tional lightning protection design concepts need to be modified by placing special emphasis on light weight, low cost, and ease o f mainte­ nance aspects o f the design. This paper introduces two new design concepts: (1) the isolation concept — the complete isolation of advanced composite structure from lightning current paths and (2) the conductive concept — the use o f graphite composite structure to safely conduct lightning currents. Through the proper use o f these and other design concepts developed by the industry, advanced com­ posite aircraft structures can be adequately protected from lightning hazard. Laboratory simulated lightning test data supporting these two design concepts are presented. The applications o f these design con­ cepts including the DC-10 composite rudder design are also discussed.
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