Update on the Development of a Flutter Analysis Capability for Unconventional Aircraft Concepts Using HCDstruct

Abstract

Following years of development, the Higher-fidelity Conceptual Design and structural optimization (HCDstruct) tool is being extended to support dynamic aeroservoelastic analysis and structural optimization for advanced aircraft concepts. These required enhancements include: the development of an aerodynamic matching routine for correcting Nastrans doublet-lattice method aerodynamics; the implementation of control surface structural models; and the implementation of support for Nastrans flutter solution sequence (SOL 145). This paper presents an update on the implementation of generalized control surface structural models and support for Nastran SOL 145