Abstract
Based on the load carrying factor, a new dimensionless criterion of load carrying factor coefficient with the theory of variable full stress and finite element method (FEM) is proposed to support structrual mass evalution with higher accuracy at the initial stages of airframe design. The approach's application strategies in modern aircraft structures with stringer skin are presented. Five delta wings with same configurations and different load carrying structures are evaluated their strucural mass by the load carrying factor coefficient. The results showed that, at the initial stages of airframe design, different load carrying structures could be evaluated, and their absolute mass could be estimated more precisely utilizing the approach presented.
Original language | English |
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Pages (from-to) | 19-23 |
Number of pages | 5 |
Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
Volume | 28 |
Issue number | 1 |
Publication status | Published - Jan 2008 |
Keywords
- Finite element method (FEM)
- Load carrying factor
- Load carrying factor coefficient
- Structural mass evaluation
- Variable full stress