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An enhanced propulsion system sizing for unmanned aerial vehicle

An enhanced propulsion system sizing for unmanned aerial vehicle / Surenther Kulanthipiyan
Lewat ini, perkembangan keupayaan kenderaan udara tanpa pemandu (UAV) dihadkan oleh jangka ketahanan sistem dorongan yang rendah. Pelbagai usaha telah dilakukan untuk melanjutkan ketahanan sistem dorongan tersebut seperti meningkatkan sumber tenaga utama. Walaubagaimanapun, usaha yang terhad telah dilakukan dalam pemodelan matematik dan konfigurasi sistem pendorongan. Oleh itu, kajian adalah untuk mereka satu kaedah menkonfigurasi sistem dorongan yang dioptimumkan dengan memperkenalkan elemen daya kilas. Model matematik sistem dorongan elektrik telah dibuktikan ketepatannya menggunakan data eksperimen sedia ada, di mana ia mempunyai 3% dan 10% ketepatan untuk meramalkan aspek elektrik dan mekanikal sistem dorongan tersebut. Oleh itu, perkenalan elemen daya kilas dalam pemodelan matematik sistem pendorongan elektrik, telah meningkatkan ketepatan model dalam meramalkan prestasi sebenar bagi sistem pendorongan elektrik. Selain menggabungkan elemen daya kilas, pengoptimuman dalam teknik pemilihan kipas pendorong telah diperkenalkan sebagai kaedah menkonfigurasi sistem pendorongan elektrik. Simulasi konsep ini telah dilakukan ke atas 42 kes kajian sistem pendorongan elektrik UAV direka sebelum ini. Dengan mengoptimumkan kipas pendorong sahaja, model konfigurasi yang dicadangkan itu berjaya meningkatkan jangka ketahanan 40 daripada 42 sistem, dengan peningkatan purata sebanyak 53%. Juga dalam purata, nisbah berat kepada daya dorongan semua sistem telah meningkat sebanyak 28%. Kesimpulannya, model konfigurasi sistem pendorongan elektrik yang dicadangkan ini berjaya meningkatkan prestasi UAV. _______________________________________________________________________________________________________ Lately, evolving unmanned aerial vehicle (UAV) capabilities are being limited by its low endurance. Multiple efforts have been done to extend its endurance especially by improving its main power sources. However, very limited work has been done on modelling and sizing its propulsion system. Thus, this study has developed an optimized propulsion system sizing method by introducing torque parameter consideration. The proposed electric propulsion sizing model has been validated using experimental data, where it has 3% and 10% accuracy to predict both electrical and mechanical parameters respectively. Thus, the incorporation of torque modelling in electric propulsion sizing, has improved the accuracy of the proposed model in predicting actual performance of an electric propulsion system. In addition to incorporating the torque modelling, an optimization in propeller selection technique has been introduced to improve the electric propulsion sizing method. This concept has been simulated on 42 case studies of previously designed UAV’s electric propulsion systems. By optimizing on just the propeller pitch and diameter alone, the proposed model has managed to increase the endurance of 40 out of 42 systems, with an average improvement by almost 53%. Also in average, the thrust to weight ratio of all the systems analysed have improved by 28%. Thus, this proposed electric propulsion sizing model improves the performance of an UAV.
Contributor(s):
Surenther Kulanthipiyan - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875006749
Barcode : 00003105256
Language:
English
Subject Keywords:
unmanned aerial vehicle (UAV); endurance; propulsion system
First presented to the public:
6/1/2016
Original Publication Date:
5/14/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Aerospace Engineering
Citation:
Extents:
Number of Pages - 57
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-05-14 12:47:01.192
Date Last Updated
2020-04-30 00:09:12.177
Submitter:
Mohd Jasnizam Mohd Salleh

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