(For USM Staff/Student Only)

EngLib USM > Ω School of Aerospace Engineering >

Determining helicopter blade length per airworthiness strength requirement

Determining helicopter blade length per airworthiness strength requirement / Nur Ika Farhana Sariman
Kertas ini menunjukkan kaedah untuk menentukan panjang bilah pemutar logam helikopter beroperasi pada 500 RPM (putaran per minit) bagi memenuhi keperluan kekuatan kelayakan terbang. Untuk mencapai matlamat ini, analisis tegasan telah dijalankan pada panjang bilah yang berbeza menggunakan SOLIDWORKS 2016 x64 Edition. Aerofoil NACA 8-H-12 dengan panjang kord seragam 5.25 inci dipilih; sesuai sebagai bahagian bilah pemutar untuk helikopter dan pesawat putar-sayap lain berdasarkan kajian sebelum ini. Keupayaan struktur untuk menahan beban operasi maksimum dilihat dan dikaji. Projek ini hanya menganalisa terhadap bilah pemutar helikopter yang dipasang tegar (diapit diakar). Keputusan yang diperolehi daripada analisis menunjukkan bahawa 2 m (78 in) panjang bilah rotor ialah panjang yang boleh diterima dan memenuhi keperluan kekuatan kelayakan terbang. _______________________________________________________________________________________________________ This paper demonstrates a methodology to determine the length of a metal helicopter rotor blade operating at 500 RPM so that it fulfills the airworthiness strength requirement. To achieve this, stress analyses were performed on different blade length using SOLIDWORKS 2016 x64 Edition. The NACA 8-H-12 airfoil sections with a 5.25 inches uniform chord length was chosen; suitable as rotor-blade sections for helicopters and other rotary-wing aircraft due to previous investigation. The capability of the structure to withstand maximum operating load were observed and checked. Focusing only for rigidly mounted (clamped root joint) helicopter rotor blade analysis. Result obtained from the analysis showed that 2 m (78 in) length of rotor blade is acceptable length and fulfills the airworthiness strength requirement.
Contributor(s):
Nur Ika Farhan Sariman - Author
Primary Item Type:
Final Year Project
Language:
English
Subject Keywords:
helicopter rotor; airworthiness; rotary-wing aircraft
First presented to the public:
6/1/2017
Original Publication Date:
3/16/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Aerospace Engineering
Citation:
Extents:
Number of Pages - 27
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-03-16 15:31:23.054
Date Last Updated
2020-04-30 15:39:23.79
Submitter:
Mohd Jasnizam Mohd Salleh

All Versions

Thumbnail Name Version Created Date
Determining helicopter blade length per airworthiness strength requirement1 2018-03-16 15:31:23.054