On Aerospace Vehicle Simulation as a Designer's Tool .

  • K.K. Mangrulkar Defence Research & Development Laboratory, Hyderabad
  • K.N. Swamy Defence Research & Development Laboratory, Hyderabad.
  • S.A. Warrier Aeronautical Development Agency, Bangalore .
Keywords: Control system, System design

Abstract

The role of system simulation, encompassing the various features of the missile in system design, is brought out. Specific issues investigated through the simulation model are highlighted with supporting results from flight records, wherever possible. The requirement to consider slosh as 'inclined' rather than 'vertical' in situations where the missile is subjected to large lateral accelerations and orientation changes is brought out. Accentuation of slosh activity in free flight is demonstrated from both simulation results and flight records. The requirement to consider engine inertia carefully in roll loop analysis is highlighted. Results of structural response when flexural mode is excited are presented. The effect of quantisation noise in the control system in low dynamic pressure region has been investigated and compared with flight results. Occurence of various important events predicted by the simulation programme in a long range mission and the actual vehicle performance are compared. Finally, the Role played by the simulation programme in hardware-in-loop simulation is brought out.

Author Biographies

K.K. Mangrulkar, Defence Research & Development Laboratory, Hyderabad
Shrl KK Mangrulkar obtained his MSc (Physics) from Nakpur University, ih 1972. He joined DRDO at the Defence Research & Development LabCDratory (DRDL), Hyderabad. The areas of his research include guidance & control and simulation.
K.N. Swamy, Defence Research & Development Laboratory, Hyderabad.
Dr KN Swamy joined DRDO at DRDL. He has been working at DRDL and DRDL Cell, Bangalore The current areas of his interest include state estimation and missile guidance.
S.A. Warrier, Aeronautical Development Agency, Bangalore .
Shri SA Warrler obtained his BTech (Aeronautical EoginQeriDg.) from Indian Institute of Technology, Kharagpur, in 1985 and MTech (Computer I Science) from Indian Institute of Technology, Bombay, in 1992. He joined DRDO atl DRDL,' as Scientist D where he woked on modelling and simulation, flexibility modelling and analysis, slosh ar)alysis, hardware-in-Ioop simulation, and preflight and postflight analysis. Currently, he is working at the Aeronautical Development Agency, Bangalore, in the areas of navigational and guidance system design, performance evaluation, real-time simulation, software development ahd,image processing.

Published
2013-01-01
How to Cite
Mangrulkar, K., Swamy, K., & Warrier, S. (2013). On Aerospace Vehicle Simulation as a Designer’s Tool . Defence Science Journal, 47(3), 281-294. https://doi.org/10.14429/dsj.47.4012
Section
Armaments & Explosives