Dynamic modelling and open-loop control of a twin rotor multi-input multi-output system
A dynamic model for a one-degree-of-freedom (DOF) twin rotor multi-input multi-output (MIMO) system (TRMS) in hover is obtained using a black-box system identification technique. The behaviour of the TRMS in certain aspects resembles that of a helicopter; hence, it is an interesting identification a...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
2002.
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Online Access: | Get fulltext |
LEADER | 01657 am a22001453u 4500 | ||
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001 | 22252 | ||
042 | |a dc | ||
100 | 1 | 0 | |a Ahmad, S.M. |e author |
700 | 1 | 0 | |a Chipperfield, A.J. |e author |
700 | 1 | 0 | |a Tokhi, M.O. |e author |
245 | 0 | 0 | |a Dynamic modelling and open-loop control of a twin rotor multi-input multi-output system |
260 | |c 2002. | ||
856 | |z Get fulltext |u https://eprints.soton.ac.uk/22252/1/ahma_02a.pdf | ||
520 | |a A dynamic model for a one-degree-of-freedom (DOF) twin rotor multi-input multi-output (MIMO) system (TRMS) in hover is obtained using a black-box system identification technique. The behaviour of the TRMS in certain aspects resembles that of a helicopter; hence, it is an interesting identification and control problem. This paper investigates modelling and open-loop control of the longitudinal axis alone, while the lateral axis movement is physically constrained. It is argued that some aspects of the modelling approach presented are suitable for a class of new generation or innovative air vehicles with complex dynamics. The extracted model is employed for designing and implementing a feedforward/open-loop control. Open-loop control is often the preliminary step for development of more complex feedback control laws. Open-loop control strategies using shaped command inputs are accordingly investigated for resonance suppression in the TRMS. Digital low-pass and band-stop filter shaped inputs are used on the TRMS testbed, based on the identified vibrational modes. A comparative performance study is carried out and the corresponding results presented. The low-pass filter is shown to result in better vibration reduction. | ||
655 | 7 | |a Article |