Active Control of Helicopter Ground Resonance with Lead-Lag Actuators

Year 2018, Volume: 2 Issue: 3 , 83 - 87 , 27.09.2018

İlkay Kurt

https://izlik.org/JA45NB28NR

Abstract

The coupling between the low frequency
lead-lag motion of rotor blade and the frequency of fuselage is the phenomenon
of ground resonance. This mechanical instability can lead to the total
destruction of the aircraft if the vibrations are not reduced in time.
Differential equations of motion of the simple ground resonance model are
derived by using the Lagrange method. Five degrees of freedom coupled rotor/fuselage
model with lead-lag actuators in the root of each blade is simulated. Fuzzy
Logic Controller is used for the purpose of suppressing the ground resonance.
The results show that existence of the active lead-lag control system prevents the
ground resonance from happening while the helicopter is in touch with the
ground.

Keywords

Helicopter ground resonance , lead-lag , coupled rotor/fuselage model , Fuzzy Logic , vibration control

References

• 1. Lee, C. M., Goverdovskiy, V. N., & Sotenko, A. V. (2016). Helicopter vibration isolation: Design approach and test results. Journal of Sound and Vibration, 366, 15-26.
• 2. Kim, D. H., Kim, T. J., Jung, S. U., & Kwak, D. I. (2016). Test and simulation of an active vibration control system for helicopter applications. International Journal of Aeronautical and Space Sciences, 17(3), 442-453.
• 3. You, Y., & Jung, S. N. (2017). Optimum active twist input scenario for performance improvement and vibration reduction of a helicopter rotor. Aerospace Science and Technology, 63, 18-32.
• 4. Kodakkattu, S. K., Joy, M. L., & Prabhakaran Nair, K. (2017). Vibration reduction of helicopter with trailing-edge flaps at various flying conditions. Journal of Aerospace Engineering, 231(4), 770-784.
• 5. Bramwell, A. R., Balmford, D., & Done, G. (2001). Bramwell's helicopter dynamics. Elsevier.
• 6. Coleman, R. P. (1943). Theory of self-excited mechanical oscillations of hinged rotor blades. N.A.C.A. ARR No. 3G29.
• 7. Byers, L., & Gandhi, F. (2009). Embedded absorbers for helicopter rotor lag damping. Journal of Sound and Vibration, 325(4-5), 705-721.
• 8. Bergeot, B., Bellizzi, S., & Cochelin, B. (2017). Passive suppression of helicopter ground resonance using nonlinear energy sinks attached on the helicopter blades. Journal of Sound and Vibration, 392, 41-55.
• 9. Wei, W., & Pinqi, X. (2007). Adaptive control of helicopter ground resonance with magnetorheological damper. Chinese Journal of Aeronautics, 20(6), 501-510.
• 10. Warrier, J., & Ali, S. F. (2017). Control of ground resonance in helicopters using semi active damping. In Indian Control Conference (ICC), 111-116.
• 11. Kessler, C., & Reichert, G. (1998). Active control to augment rotor lead-lag damping. The Aeronautical Journal, 102(1015), 245-258.
• 12. Kunz, D. (2002). Nonlinear analysis of helicopter ground resonance. Nonlinear Analysis: Real World Applications, 3(3), 383-395.
• 13. Zhu, Y., Lu, Y. H., & Ling, A. M. (2017). Simulation Analysis of Helicopter Ground Resonance Nonlinear Dynamics. Materials Science and Engineering, 224(1), 012010.
• 14. Sanches, L., Michon, G., Berlioz, A., & Alazard, D. (2012). Parametrically excited helicopter ground resonance dynamics with high blade asymmetries. Journal of Sound and Vibration, 331(16), 3897-3913.
• 15. Sanches, L., Michon, G., Berlioz, A., & Alazard, D. (2014). Response and instability prediction of helicopter dynamics on the ground. International Journal of Non-Linear Mechanics, 65, 213-225.
• 16. Bergeot, B., Bellizzi, S., & Cochelin, B. (2016). Passive suppression of helicopter ground resonance instability by means of a strongly nonlinear absorber. Advances in Aircraft and Spacecraft Science, 3(3), 271-298.
• 17. Jhinaoui, A., Mevel, L., & Morlier, J. (2014). A new SSI algorithm for LPTV systems: application to a hinged-bladed helicopter. Mechanical Systems and Signal Processing, 42(1-2), 152-166.
• 18. Sezer, S., & Atalay, A. E. (2012). Application of fuzzy logic based control algorithms on a railway vehicle considering random track irregularities. Journal of Vibration and Control, 18(8), 1177-1198.
• 19. Paksoy, M., Guclu, R., & Cetin, S. (2014). Semi-active self-tuning fuzzy logic control of full vehicle model with MR damper. Advances in Mechanical Engineering, 6, 816813.