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首页> 外文会议>Space Technology amp; Applications International Forum (STAIF-99) ptol January 31-February 4, 1999, Albuquerque Hyatt Hotel, NM >Electromagnetic shielding effectiveness of composite material
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Electromagnetic shielding effectiveness of composite material

机译：复合材料的电磁屏蔽效能

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摘要

The purpose of this paper is to present an engineering study of the electromagnetic sheidling effectiveness of composite materials used in space applications. The objective of the study is to identify and quantify the important electrical characteristics of composite materials proposed as substitutes for conventional metal-based structural elements of spacraft. Current design practices utilized by various developers of spacecaft, particularly those with survivability and endurements, employ variations of design constraints which rely on quantifiable and testable control of electromagnetic topology. These design practices are based on extensive knowledge and experience gained through analyses and tests of cofigurations on meatallic structures and metal-enclosed electronics boxes. The purose of this study is to determine, analystically and experimentally, the relevant electromagnetic characteristics of selected classes of composite material being recommended for inclusion in designs of new spacecraft systems. This study surveyed existing electronagnentic databases to determine known electrical characteristics of various advanced composite materials proposed as substitutes for spacecraft matal-based structures and enclosure materials. Particular attention was foused on determining he utility of this data in quantify ing the electromagnetic shielding effectivness through nominal bulk properties such as resistvity/conductivity and electrical connectivity through bonds/joints. For a select set of composite material, an experimental approach to evaluage the important electronagnetic characteristics of sample configurations was used. Primary material foucs of this study is on cargon/epoxy, graphite/epoxy, and cabon/cyanate ester materials.
机译：本文的目的是对空间应用中使用的复合材料的电磁屏蔽效应进行工程研究。这项研究的目的是识别和量化复合材料的重要电学特性，这些复合材料可以替代传统的航天金属结构构件。各种太空飞船开发人员（尤其是那些具有生存能力和承受力的开发人员）目前采用的设计实践采用了各种设计约束，这些约束依赖于电磁拓扑的可量化和可测试的控制。这些设计实践基于通过对肉类结构和金属封闭的电子盒的外形进行分析和测试而获得的广泛知识和经验。这项研究的目的是通过分析和实验来确定推荐用于新航天器系统设计的精选复合材料类别的相关电磁特性。这项研究调查了现有的电子复合材料数据库，以确定各种先进的复合材料的已知电学特性，这些材料被建议替代航天器基于材料的结构和围护材料。在确定此数据在通过标称体积特性（例如，电阻率/电导率和通过键合/接头的电连接性）量化电磁屏蔽有效性方面的实用性方面引起了特别关注。对于一组选定的复合材料，使用了一种评估样品配置的重要电子磁特性的实验方法。这项研究的主要材料重点在于货物/环氧树脂，石墨/环氧树脂和碳/氰酸酯材料。

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