Optimum structural sizing of conventional cantilever and joined wing configurations using equivalent beam modelsThe present paper describes an approach for the optimum sizing of single and joined wing structures that is based on representing the built-up finite element model of the structure by an equivalent beam model. The low order beam model is computationally more efficient in an environment that requires repetitive analysis of several trial designs. The design procedure is implemented in a computer program that requires geometry and loading data typically available from an aerodynamic synthesis program, to create the finite element model of the lifting surface and an equivalent beam model. A fully stressed design procedure is used to obtain rapid estimates of the optimum structural weight for the beam model for a given geometry, and a qualitative description of the material distribution over the wing structure. The synthesis procedure is demonstrated for representative single wing and joined wing structures.
Document ID
19870030629
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hajela, P. (Florida Univ. Gainesville, FL, United States)
Chen, J. L. (Florida, University Gainesville, United States)