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Solar-powered aircraft trajectory optimization through mission profile configuration /Ong Kuan Theng

Solar-powered aircraft trajectory optimization through mission profile configuration_Ong Kuan Theng_A2_2015_NI
Selama ini, penyelidikan telah membuktikan bahawa tenaga solar boleh diperolehi secara efektif oleh Pesawat Udara Tanpa Pemandu, UAV dengan terbang mengikuti trajektori tertentu. Pola baru-baru ini telah memberi tumpuan kepada eksploitasi tenga solar bersama-sama dengan tenaga graviti yang berpotensi untuk mencapai penerbangan kekal. Penyelesaian yang disebut dapat dicapai dengan memaksimumkan kuasa solar yang diperolehi daripada matahari dengan terbang sewajarnya kepada sudut azimuth solar. Namun, laluan penerbangan untuk mengikuti matahari telah menyebabkan kuasa yang agak tinggi untuk beroperasi. Jadi, kajian telah dilakukan terhadap trajektori yang membolehkan penerbangan dengan nisbah kuasa optimum pada setiap titik misi. Walaupun nisbah kuasa keseluruhan misi telah bertambah baik, ia masih belum dioptimumkan. Oleh itu, satu pendekatan baru iaitu konfigurasi fasa misi telah dicadangkan untuk memaksimumkan nisbah kuasa keseluruhan. Simulasi skala besar telah dilakukan dalam mengoptimumkan dan menyusun semula fasa profil misi untuk UAV; untuk menentukan definisi fasa optimum tempoh permulaan, naik, dan turun supaya memperolehi tenaga yang paling berfaedah daripada matahari. Pendekatan ini telah menunjukkan peningkatan sebanyak 15.78% pada nisbah kuasa bersih. Kesimpulannya, misi konfigurasi profil yang dicadangkan dengan perancangan nisbah kuasa trajekori yang optimum telah memanfaatkan operasi UAV. ______________________________________________________________________________________ Over the years, researches have proven that solar energy can be effectively harvested by UAV when flying according to certain trajectory. Recent trend has focused on the exploitation of solar energy along with gravitational potential energy to make the perpetual flight possible. The mentioned solution is achieved by maximizing solar power gained from sun by flying accordingly to the solar azimuth angle. However, the flight path to follow the sun has resulted in comparatively high power used for maneuver. Subsequently, work on the trajectory to fly with an optimal power ratio at every point of a mission was developed. Even though the overall power ratio of a mission has improved, it has yet to be optimized. Thus, a new approach mission phase configuration is proposed to maximize the overall power ratio. Extensive simulation done in optimizing and restructuring the mission profile phases for UAV; to determine the optimal phase definition of start, ascend and descend period to harvest the most benefit from sun. This approach has improved 15.78% in the net power ratio. In conclusion, the proposed mission profile configuration together with the optimal power ratio trajectory path planning greatly benefits UAV operation.
Contributor(s):
Ong Kuan Theng - Author
Primary Item Type:
Final Year Project
Language:
English
Subject Keywords:
trajectory ; solar energy ; flight
First presented to the public:
6/1/2015
Original Publication Date:
10/10/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Aerospace Engineering
Citation:
Extents:
Number of Pages - 71
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-10-10 16:57:03.579
Submitter:
Nor Hayati Ismail

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