Analysis of an Archetype Flexible Joint for Helicopter Application

Ziad Bin Abdul Awal¹ , Mohd. Shariff Bin Ammoo²

1. Dept. of Aeronautical Engineering, Bangabandhu Sheikh Mujibur Rahman Aviation and Aerospace University (BSMRAAU).
2. Dept. of Aeronautics, Automotive & Ocean Engineering, Universiti Teknologi Malaysia (UTM).

Section:Research Paper, Product Type: Journal-Paper
Vol.9 , Issue.2 , pp.9-16, Feb-2023

Online published on Feb 28, 2023

Copyright © Ziad Bin Abdul Awal, Mohd. Shariff Bin Ammoo . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

View this paper at   Google Scholar | DPI Digital Library

XML View     PDF Download

How to Cite this Paper

124 Views    158 Downloads    51 Downloads

Abstract :
Be it in land, air or sea; shaft coupling or flexible joint remains a precarious constituent in any vehicular system. In arrears to its substantial expediency, this paper imparts a one-off flexible joint design predominantly dedicated to drive the main rotor shaft of a single-seat helicopter. An inimitable experiment is conceived and piloted by constructing a dedicated test rig which is capable of assessing the flexible joint at different rotational speeds providing a conduit to comprehend its functionality. Comparative data accumulated through both with and without the implementation of the flexible joint revealed that the coupling unremittingly assists is reducing vibration at higher speeds accompanied by common phenomenon of resonance at certain rpm. Nevertheless, the prototype flexible joint is believed to have substantiated its significance through perpetual power transmission including improved vibrational stability.

Key-Words / Index Term :
Flexible Joint; Main Rotor System; Power Transmission; Resonance; Torsional Flexibility; Vibration

References :
1. M. S. B Ammoo, Z. B. A. Awal and K. S. B. Khairudin, “Structural Analysis of UTM Single-Seat Helicopter Chassis,” Jurnal Teknologi (Sciences & Engineering), Vol. 71, No. 2, pp. 57-64, 2014.
2. M. S. B Ammoo, Z. B. A. Awal and N. B. M. Sangiti, “Static and Dynamic Balancing of Helicopter Tail Rotor Blade Using Two-Plane Balancing Method”, Jurnal Teknologi (Sciences & Engineering), Vol. 71, No. 2, pp. 49-55, 2014.
3. Z. B. A. Awal and M. S. B Ammoo, “Numerical Simulation and Investigation of Transonic & Symmetrical Airfoil for Helicopter Main Rotor-Blade Application,” Applied Mechanics and Materials, Vol. 704, pp. 137-142, 2015.
4. A. Belhocine and M. Bouchetara, “Temperature and thermal stresses of vehicles gray cast brake”, Journal of Applied Research and Technology, Vol. 11, No. 5, pp. 674-682, 2015.
5. Z. B. A. Awal and M. S. B Ammoo and N. S. B. Jamaluddin, “The Effect of Rotor Disc Clearance on the Lift Performance of Contra-Rotating Rotor Blades,” International Journal of Research in Engineering and Technology, Vol. 3, No. 5, pp. 739-745, 2014.
6. M. S. B Ammoo and Z. B. A. Awal, “An Investigation on Crack Alleviation in Bending of Aluminium 2024 for Aircraft Application,” International Journal of Research in Aeronautical and Mechanical Engineering, Vol. 2, No. 3, pp. 255-269, 2014.
7. Z. B. A. Awal and M. S. B Ammoo, “A Case Study on the Air Flow Characteristics of the Hirobo-FALCON 505 Controllable Helicopter’s Main Rotor Blade”, Applied Mechanics and Materials, Vol. 527, No. 1, pp. 39-42, 2014.
8. M. S. B Ammoo and Z. B. A. Awal, “Main Rotor Blade Air Flow Characteristics & Behaviour of a Remote Controlled Sub-scale Helicopter: A Case Study,” International Journal of Research in Aeronautical and Mechanical Engineering, Vol. 1, No. 7, pp. 228-235, 2013.
9. Z. B. A. Awal, M. S. B Ammoo, S. Mansor and I. S. Ishak, “Rudimentary Effects of Emblematic Gust Excitations on the Lift Performance of Coaxial Helicopter Rotor Blades,” Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, Vol. 44, No. 1, pp. 24-35, 2018.
10. Z. B. A. Awal, “Unmanned Rotorcraft in Aggressive Environment: Aerodynamic Flow Performance against Wind Gust,” International Journal of GEOMATE (Science, Engineering & Environment), Vol. 13, No. 40, pp. 173-182, 2017.
11. M. S. B Ammoo and Z. B. A. Awal and J. Koto. “Air Flow Characteristics and Behavior of Main Rotor Blade of Remote Controlled Model Scale Helicopter,” Journal of Ocean, Mechanical and Aerospace, Vol. 16, No. 1, pp. 18-22, 2015.
12. S. Sriram, S. Prashanth, S.R. Arun and M.G. Rajagopal, “Design and Fabrication of High Endurance Mapping Drone,” International Journal of Scientific Research in Multidisciplinary Studies, Vol. 8, No. 1, pp. 6-13, 2022.
13. M. Raja, A. Marwaha, D. J. Kochuveettil, B. Narender, A. Sharma, “Integrated Micro-Electro-Mechanical Systems with Global Position System for Attitude Measurements of Aerial Vehicles,” International Journal of Scientific Research in Multidisciplinary Studies, Vol. 6, No. 8, pp. 14-17, 2020.
14. E. I. Rivin, “Stiffness and Damping in Mechanical Design”, Marcel Dekker, New York, USA, 1999.
15. Z. Liu, P. Ye, X. Guo, X and Y. Guo, “Rigid-flexible Coupling Dynamic Analysis on a Mass Attached to a Rotating Flexible Rod,” Applied Mathematical Modelling, Vol. 38, No. 1, pp. 4985-4994, 2014.
16. T. R. Kane, R. R. Ryan, and A. K. Banerjee, “Dynamics of a cantilever beam attached to a moving base,” Journal of Guidance, Control, and Dynamics, Vol. 10, No. 2, pp. 139-151, 1987.
17. T. M. Wasfy, and A. K. Noor “Computational strategies for flexible multibody systems,” Applied Mechanics Reviews. Vol. 56, No. 6, pp. 553-613, 2003.
18. W. Schielen, “Computational dynamics: theory and applications of multibody systems”, European Journal of Mechanics - A/Solids, Vol. 25, No. 4, pp. 566-594, 2006.
19. C. A. Pérez, R. Nava, G. A. Ruiz, and A. Pérez, “Development of an Anti-Vibration System for the Safe Transfer and Reliable Operation of Mammography Equipment on Board a Mobile Medical Unit,” Journal of Applied Research and Technology. Vol. 11, No. 6, pp. 920-926, 2013.
20. P. Kadarno, Z. Taha, T. Dirgantara and K. Mitsui, “Vibration Analysis of Defect Ball Bearing using Finite Element Model Simulation”, 9th Asia Pacific Industrial Engineering & Management System Conference, APIEMS. pp. 2832-2840, 2008.
21. H. Saruhan, S. Saridemir, A. Çiçek and I. Uygur, “Vibration Analysis of Rolling Element Bearings Defects,” Journal of Applied Research and Technology, Vol. 12, No. 3, pp. 384-395, 2014.
22. B. Al-Najjar, “Improved Effectiveness of Vibration Monitoring of Rolling Bearings in Paper Mills,” Journal of Engineering Tribology, Vol. 212, No. 2, pp.111-120, 1998.
23. E. Vogel, “Understanding of Resonance Essential for Solving Vibration Problems,” Plant Engineering Magazine, 2013.
24. M. A., Montiel, G. S. Navarro and A. A. García, “Active Vibration Control in A Rotor System by an Active Suspension with Linear Actuators,” Journal of Applied Research and Technology, Vol. 12, No. 5, pp. 898-907, 2014.