A DLM-BASED MSC Nastran AERODYNAMIC FLUTTER SIMULATOR FOR AIRCRAFT LIFTING SURFACES

نویسندگان

  • Emil Suciu
  • Nicholas Stathopoulos
  • Martin Dickinson
  • John Glaser
چکیده

A DLM-based aerodynamic simulator for flutter is used to identify some of the most important aerodynamic drivers for the T-Tail flutter mechanism of a complete aircraft. The simulator is using the Modal Descrambling Factoring Method, which permits individual variations of each direct and each interference aerodynamic force, moment and hinge moment independently of any other force or moment. The sensitivity of the flutter solution to individual variations of very large numbers of direct and interference aerodynamic derivatives can be studied with ease.

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تاریخ انتشار 2013