Advances in aircraft and spacecraft science

  • 제4권2호
  • /
  • Pages.185-202
  • /
  • 2017
  • /
  • 2287-528X(pISSN)
  • /
  • 2287-5271(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Model updation using multiple parameters influencing servoelastic response of a flexible aircraft

  • 투고 : 2015.09.10
  • 심사 : 2016.07.01
  • 발행 : 2017.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

In a flexible airvehicle, an assessment of the structural coupling levels through analysis and experiments provides structural data for the design of notch filters which are generally utilized in the flight control system to attenuate the flexible response pickup. This is necessitated as during flight, closed loop control actuation driven with flexible response inputs could lead to stability and performance related problems. In the present work, critical parameters influencing servoelastic response have been identified. A sensitivity study has been carried out to assess the extent of influence of each parameter. A multi-parameter tuning approach has been implemented to achieve an enhanced analytical model for improved predictions of aircraft servoelastic response. To illustrate the model updation approach, initial and improved test analysis correlation of lateral servoelastic responses for a generic flexible airvehicle are presented.

키워드

참고문헌

  1. Allen, M.G., Reardon, M.G. and Gordon, F.W. (1986), "Use of the flight simulator in performing AFTI/F-16 airplane aeroservoelastic analysis", In 27th Structures, Proceedings of the Structural Dynamics and Materials Conference.
  2. Arnold, J.I. and Murphy, F.B. (1976), "B-52 control configured vehicles: Flight test results", N76-31139, The Boeing Company, Wichta Division, 75-89.
  3. Bart, P., Hector, C., Raul, D., Jesus, A., Ahlquist, J.R., Carreno, J.M., Wim, H., Alain, R., Gonzalo, G., Jeroen, D. and Jan, D. (2008), "Modern solution for ground vibration testing of large aircraft", IMAC 26, Orlando, U.S.A.
  4. Becker, J. and Vacarro, V. (1995), "Ground structural coupling testing and model updating in the aeroservoelastic qualification of a combat aircraft", 80th Meeting of the AGARD SMP, Rotterdam.
  5. Becker, J. Caldwell, B. and Vaccaro, V. (2000), "The interaction of flight control system and aircraft structure", Daimler Chrysler Aerospace Munich Military Aircraft, Germany.
  6. Clough, R.W. and Penzien, J. (1995), Dynamics of Structures, 3rd Edition, Computers and Structures Inc., California, U.S.A.
  7. Ewins, D.J. (2000), "Model validation: Correlation for updating", Sadhana, 25(3), 221-234. https://doi.org/10.1007/BF02703541
  8. Felt, L.R., Hutsell, L.J., Noll, T.E. and Cooley, D.E. (1979), "Aeroservoelastic encounters", J. Aircraft, 16(7), 477-483. https://doi.org/10.2514/3.58551
  9. Joshi, A., Srinivasan, P., Narayanaswamy, I. and Hemalatha, E. (2014), "Identification of critical parameters for improved servoelastic response predictions of a flexible aircraft", National Seminar on Aerospace Structures (18th NASAS), Nagpur, India, December.
  10. Lai, C. and Yang, C. (1994), "Structural coupling ground test for structural filter design on aircraft", Proceedings of the 36th Conference on Aeronautics and Astronautics, R.O.C., Taiwan, December.
  11. Luber, W. (2009), "Aeroservoelastic design and verification of a combat aircraft", Proceedings of the IMACXXVII, Orlando, Florida, U.S.A., February.
  12. Mottershead, J.E. and Friswell, M.I. (1993), "Model updating in structural dynamics: A Survey", J. Sound Vib., 167(2), 347-375. https://doi.org/10.1006/jsvi.1993.1340
  13. Noll, T.E. (1990), "Aeroservoelasticity", NASA TM 102620, March.
  14. Pascual, R., Golinval, J.C. and Razeto, M. (1997), "A frequency domain correlation technique for model correlation and updating", IMAC XV.
  15. Peloubet, R.P. (2006), "Flutter prevention handbook: A preliminary collection, Part D: Aeroservoelastic Instability", Case Study A, NASA/TP-2006-212490, 2(2).
  16. Pickerel, C.R., Foss, G.C., Phillips, A., Allemang, R.J. and Brown, D.L. (2006), "New concepts in aircraft ground vibration testing", Sound Vib., 40(10), 12-17.
  17. Voraceck, D.F. and Clarke, R. (1991), "Buffet induced structural/flight control system interaction of the X-29A aircraft", NASA Ames Research Center, NASA TM-101735, California.
  18. Wang, J., Zhi-Chu Huang, Z. and Zhang, Q. (1993), "Sensitivities of mechanical structures to structural parameters", Comput. Struct., 49(3), 557-560. https://doi.org/10.1016/0045-7949(93)90057-K
  19. Wray, W.R. (1999), "F-22 structural coupling lessons learned, lockheed martin tactical aircraft systems", Presented at the RTO AV Specialists Meeting on "Structural aspects of flexible aircraft control", Canada, October.