Brahma, KK and Parida, BK (1999) Buffet Response Studies of An Aircraft. Technical Report. National Aerospace Laboratories, Bangalore, India.
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Abstract
A pilot project was taken up by NAL to study the nature of loading a fin of a13; particular aircraft experiences during the flight.13; The task of limited instrumented flight tests has revealed that the vertical fin13; experiences buffet under asymmetric maneuvers as a consequence of the excitation of13; inherent structural response modes in the frequency range from 10 to 50 Hz. The base13; line data obtained during flight tests can be used as a pointer for assessment of13; structural integrity of vertical tail assembly at a later date, when the extension of Total13; Technical Life (TTL) of airframe would be taken up.13; In view of findings on buffet response of the fin through instrumented flight tests, it is13; concluded that the aircraft can perform required maneuvers safely within the specified13; limit of flight envelope even though the buffet occurrence is observed within it.13; Further, no additional limitations on aileron (roll) and rudder deflection other than13; those laid down in the flight manual are recommended.
| Item Type: | Proj.Doc/Technical Report (Technical Report) |
|---|---|
| Uncontrolled Keywords: | Buffet empennage;Fighter aircraft;Asymmetric manevuers;Structural response mode;Vertical fin |
| Subjects: | AERONAUTICS > Aircraft Design, Testing & Performance |
| Division/Department: | Structural Integrity Division, Structural Integrity Division |
| Depositing User: | Mrs Manoranjitha M D |
| Date Deposited: | 05 May 2006 |
| Last Modified: | 24 May 2010 09:41 |
| URI: | http://nal-ir.nal.res.in/id/eprint/1239 |
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