Static and Dynamic Balancing of Helicopter Tail Rotor Blade Using Two-Plane Balancing Method
DOI:
https://doi.org/10.11113/jt.v71.3720Keywords:
Correction mass, trial mass, vibration, vibratory acceleration, residual unbalanceAbstract
Balancing is a rotating component is critical in any mechanism. Devoid of proper balancing, any vehicle - be it in air, land or sea, it will affect stability, control and safety. The same goes for rotor crafts. Imbalance of the helicopter tail rotor system leads to vibrations in the entire vehicle and may cause accident. Typically, for the tail rotor of a helicopter, the blade is a source of vibration on the tail boom. This not only causes inconvenience to the pilot but also reduces the life span of the helicopter. There is a certain amount of vibration in the helicopter rotor systems especially the tail rotor. Hence, balancing procedure for rotating mass was conducted to reduce the vibration. This research focuses on balancing of the tail rotor for UTM Single Seat Helicopter. Experiments have been conducted in order to study the vibration level of the tail rotor. Adding and removing masses separately on the tail rotor exhibited different vibration levels. The responses were analyzed and used for balancing the tail of rotor system. The balancing effort was considered successful, although there was still some residual unbalance in the tail rotor.
References
Z.B.A. Awal, M.S.B. Ammoo and N S.B. Jamaluddin. 2014. The Effect of Rotor Disc Clearance on the Lift Performance of Contra-Rotating Rotor Blades. International Journal of Research in Engineering and Technology. 3(5): 739–745.
M.S.B. Ammoo and Z.B.A. Awal. 2013. 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. 1(7): 228–235.
Z.B.A. Awal and M.S.B. Ammoo. 2014. A Case Study on the Air Flow Characteristics of the Hirobo-FALCON 505 Controllable Helicopter’s Main Rotor Blade. Applied Mechanics and Materials. 527: 39–42.
M.S.B. Ammoo and Z.B.A. Awal. 2014. An Investigation on Crack Alleviation in Bending of Aluminium 2024 for Aircraft Applications. International Journal of Research in Aeronautical and Mechanical Engineering, 2(3): 255–269.
D.L. Kunz and M.C. Newkirk. 2009. A Generalized Dynamic Balancing for the AH-64 Tail Rotor, Journal of Sound and Vibration. 326: 353–366.
J.G. Helmuth and J.R. Chadwick. 1974. Helicopter Rotor Balancing Method and System. Chadwick-Helmuth Electronics, Inc. Monrovia. Calif. Appl. 298: 397.
R. Ferrer, T. Krysinski, S. Bellizzi and P.A. Aubourg. 2001. New Methods for Rotor Tracking and Balance Tuning and Defect Detection Applied to Eurocopter Products. Proceedings American Helicopter Society. 57th Annual Forum. 2: 1128–1136.
H.P. Bloch and F.K. Geitner. 2005. Machinery Component Maintenance and Repair, Practical Machinery Management for Process Plants. 3: 258–366.
J.W. Lund and J. Tonnesen. 1972. Analyses and Experiments on Multiplane Balancing of a Fexible Rotor. American Society of Mechanical Engineers Journal of Engineering for Industry. 94: 233–242.
Y. Kang, M.H. Tseng, S.M. Wang, C.P. Chiang and C.C. Wang. 2003. An Accuracy Improvement for Balancing Crankshafts. Mechanism and Machine Theory. 38(12): 1449–1467.
F. Seve, M.A. Andrianoely, A. Berlioz, R. Dufour and M. Charreyron. 2003. Balancing of machinery with a flexible variable-speed rotor. Journal of Sound and Vibration, 264: 287–302.
S. Zhou and J. Shi. 2001. Active Balancing and Vibration Control of Rotating Machinery: A Survey. The Shock and Vibration Digest. 33(4): 361–371.
M. MacCamhaoil. Static and Dynamic Balancing of Rigid Rotors. Bruel & Kjaer application notes, BO 0276-12, Web link: http://www.bksv. com/doc/BO0276.pdf
Downloads
Published
Issue
Section
License
Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.
