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Rotorcraft Weight Trends in Light of Structural Material Characteristics

Wieslaw Zenon Stepniewski

出版	Defense Technical Information Center, 1987
URL	http://books.google.com.hk/books?id=epmbHwAACAAJ&hl=&source=gbs_api

註釋

Variations in weight of rotorcraft and their major components due to the use of advanced materials are examined. The impact of new materials on component weights is illustrated by historical weight trends. The influences of structural material characteristic on relative weight levels of major rotorcraft components, the weight effectiveness, for both static and fatigue-type loadings are reviewed. Cursory expressions are developed to permit estimation of how the strength effectiveness values or structural materials affect the relative weights of components. Special constraints which could limit the possible weight reductions achievable are considered briefly. A survey of advanced structural materials is also included. Keywords: Rotary wing aircraft; Helicopters; Weight estimation, Advanced structural materials.