Structural Weight Comparison of a Joined Wing and a Conventional Wing
1982; American Institute of Aeronautics and Astronautics; Volume: 19; Issue: 6 Linguagem: Inglês
10.2514/3.57418
ISSN1533-3868
Autores Tópico(s)Advanced Aircraft Design and Technologies
ResumoA structural weight comparison was made between a new concept wing design, called a Joined Wing, and a reference conventional wing-plus-horizontal tail (Boeing 727). The joined-wing analysis includes two cases that differ only in minimum gage skin thickness. The comparison was accomplished by constructing finite-element computer models of each wing configuration, analyzing each for optimum skin thickness, then determining the structural weight of each wing. The optimizations were based on a fully stressed design concept using a Von Mises criterion for maximum allowable stress. The joined wing was found to be lighter by 12-22%.
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