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.
 

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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

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