Limit Cycle Flutter Analysis of a High-Aspect-Ratio Wing with an External Store

摘要

Limit cycle flutter analysis of a high-aspect-ratio wing with an external store is presented. The concentrated store mass is combined into the governing equations which are obtained using the extended Hamilton's principle. The high-aspect-ratio wing structural model, which also considers the in-plane bending motion, is used. Three possible nonlinearities are considered including structural nonlinearities, aerodynamic nonlinearities, and store nonlinearities. Time simulation and bifurcation diagrams are performed to analysis systems with three nonlinearities.