Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지
DOI QR코드

DOI QR Code

Transient Response Analysis for a Smart UAV Considering Dynamic Loads by Rotating Rotor and Wakes

회전로터 및 후류 동하중을 고려한 스마트 무인기 천이응답해석

  • 김현정 (국립경상대학교 대학원 기계항공공학부) ;
  • 오세원 (국립경상대학교 대학원 기계항공공학부) ;
  • 김성준 (항공우주연구원) ;
  • 최익현 (항공우주연구원) ;
  • 김태욱 (항공우주연구원) ;
  • 이상욱 (항공우주연구원) ;
  • 김진원 (항공우주연구원) ;
  • 이정진 (항공우주연구원) ;
  • 김동현 (국립경상대학교 대학원 기계항공공학부 및 항공기부품기술연구소)
  • Published : 2006.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, structural vibration analyses of a smart unmanned aerial vehicle (UAV) have been conducted considering dynamic loads generated by rotating rotor and wakes. The present UAV (TR-S5-03) finite element model is constructed as a full three-dimensional configuration with different fuel conditions and tilting angles for helicopter, transition and airplane flight modes. Practical computational procedure for modal transient response analysis (MTRA) is established using general purpose finite element method (FEM) and computational fluid dynamics (CFD) technique. The dynamic loads generated by rotating blades in the transient and forward flight conditions are calculated by unsteady CFD technique with sliding mesh concept. As the results of present study, transient structural displacements and accelerations are presented in detail. In addition, vibration characteristics of structural parts and installed equipments are investigated for different fuel conditions and tilting angles.

Keywords

References

  1. Kim, D. H., Jung, S. U., Koo, K. N., Kim, S. J., Kim, S. C., Shin, J. W., Kim, S. C., Lee, J. U., Choi, J. H. and Lee, J. J., 2005, 'Structural Vibration Analysis for a Composite Smart UAV Considering Dynamic Hub-loads of the Tilt-rotor' , Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 15, No. 5, pp. 63-71 https://doi.org/10.5050/KSNVN.2005.15.1.063
  2. Jung, S. U., Kim, D. H., Yang, Y. J., Kim, S. J., Shin, J. W., Kim, S. C. and Choi, I. H., 2004, 'Vibration Environmental Analyses for Electronic Equipmentsof a Smart UAV Due To Dynamic Hub-loads of Tilt-rotor' , The Korean Society for Aeronautical Science and Flight Operation, Autumn Conference, 26 November, Korea Aviation University
  3. Meirovitch, L., 1980, 'Computational Methods in Structural Dynamics, Sijthoff & Noordhoff International Publishers' , The Netherlands
  4. Meirovitch, L., 1986, 'Elements of Vibrational Analysis' , McGraw-Hill, 2nd Ed
  5. Bathe, K. J., 1996, 'Finite Element Procedures' , Prentice-Hall, Inc
  6. Johnson, W., 2004, CAMRAD II, 'Comprehensive Analytical Model of Rotorcraft Aerodynamics and Dynamics' , Johnson Aeronautics