Conceptual design of a small non-rigid airship with particular attention to its static and dynamic stability

Small size airships are traditionally designed and built based on experience rather than scientific approaches. Hence, its design approach has only been discussed in a very limited number of literatures. Thus, with these challenges at hand, a conceptual design study of airship in Malaysia was...

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Main Author:	Hariri, Azian
Format:	Thesis
Language:	English English English
Published:	2009
Subjects:	TL Motor vehicles Aeronautics Astronautics
Online Access:	http://eprints.uthm.edu.my/7308/1/24p%20AZIAN%20HARIRI.pdf http://eprints.uthm.edu.my/7308/2/AZIAN%20HARIRI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/7308/3/AZIAN%20HARIRI%20WATERMARK.pdf
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id	my-uthm-ep.7308
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spelling	my-uthm-ep.73082022-07-21T03:51:39Z Conceptual design of a small non-rigid airship with particular attention to its static and dynamic stability 2009-01 Hariri, Azian TL Motor vehicles. Aeronautics. Astronautics TL500-777 Aeronautics. Aeronautical engineering Small size airships are traditionally designed and built based on experience rather than scientific approaches. Hence, its design approach has only been discussed in a very limited number of literatures. Thus, with these challenges at hand, a conceptual design study of airship in Malaysia was done to identify and explore the basic technology of airship design. This study focused on the conceptual design, determination of basic specifications and preliminary design of small size non-rigid airship for monitoring missions in Malaysia. The preliminary design focused on static stability, dynamic stability and development of a virtual simulator. The mathematical model of the designed airship for dynamic stability was rederived based on literatures and is then programmed to Graphical User Interface (GUI) with the aid of Matlab software. The airship was designed to fulfill the design specification suitable for monitoring with maximum speed of 40 km/h, cruising speed of20 km/h, operating altitude of 120 m and able to carry payload of at least of 6 kg. The dimension of 10 m length with maximum diameter of2.3 m was chosen with a pair of 0.25 hp engines to accomplish the desired specification. The designed airship was statically stable with trimmed angle of attack of approximately 0.18 degree. Through mathematical model of airship dynamics, following a detailed procedure including stability considerations, the airship had been analyzed and found to be dynamically stable with low control power and the time taken for the longitudinal response of elevator and vectored thrust to become stable was in the order of approximately 80 seconds while the lateral response of rudder becomes stable in approximately 30 seconds. The result of this study concluded that the designed airship fulfilled the design specification for monitoring mission and the designed airship was statically and dynamically stable during cruising speed. The virtual simulator also effectively provides a better understanding of the response of the designed airship through visualization. 2009-01 Thesis http://eprints.uthm.edu.my/7308/ http://eprints.uthm.edu.my/7308/1/24p%20AZIAN%20HARIRI.pdf text en public http://eprints.uthm.edu.my/7308/2/AZIAN%20HARIRI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/7308/3/AZIAN%20HARIRI%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TL Motor vehicles Aeronautics Astronautics TL Motor vehicles Aeronautics Astronautics
spellingShingle	TL Motor vehicles Aeronautics Astronautics TL Motor vehicles Aeronautics Astronautics Hariri, Azian Conceptual design of a small non-rigid airship with particular attention to its static and dynamic stability
description	Small size airships are traditionally designed and built based on experience rather than scientific approaches. Hence, its design approach has only been discussed in a very limited number of literatures. Thus, with these challenges at hand, a conceptual design study of airship in Malaysia was done to identify and explore the basic technology of airship design. This study focused on the conceptual design, determination of basic specifications and preliminary design of small size non-rigid airship for monitoring missions in Malaysia. The preliminary design focused on static stability, dynamic stability and development of a virtual simulator. The mathematical model of the designed airship for dynamic stability was rederived based on literatures and is then programmed to Graphical User Interface (GUI) with the aid of Matlab software. The airship was designed to fulfill the design specification suitable for monitoring with maximum speed of 40 km/h, cruising speed of20 km/h, operating altitude of 120 m and able to carry payload of at least of 6 kg. The dimension of 10 m length with maximum diameter of2.3 m was chosen with a pair of 0.25 hp engines to accomplish the desired specification. The designed airship was statically stable with trimmed angle of attack of approximately 0.18 degree. Through mathematical model of airship dynamics, following a detailed procedure including stability considerations, the airship had been analyzed and found to be dynamically stable with low control power and the time taken for the longitudinal response of elevator and vectored thrust to become stable was in the order of approximately 80 seconds while the lateral response of rudder becomes stable in approximately 30 seconds. The result of this study concluded that the designed airship fulfilled the design specification for monitoring mission and the designed airship was statically and dynamically stable during cruising speed. The virtual simulator also effectively provides a better understanding of the response of the designed airship through visualization.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Hariri, Azian
author_facet	Hariri, Azian
author_sort	Hariri, Azian
title	Conceptual design of a small non-rigid airship with particular attention to its static and dynamic stability
title_short	Conceptual design of a small non-rigid airship with particular attention to its static and dynamic stability
title_full	Conceptual design of a small non-rigid airship with particular attention to its static and dynamic stability
title_fullStr	Conceptual design of a small non-rigid airship with particular attention to its static and dynamic stability
title_full_unstemmed	Conceptual design of a small non-rigid airship with particular attention to its static and dynamic stability
title_sort	conceptual design of a small non-rigid airship with particular attention to its static and dynamic stability
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate	2009
url	http://eprints.uthm.edu.my/7308/1/24p%20AZIAN%20HARIRI.pdf http://eprints.uthm.edu.my/7308/2/AZIAN%20HARIRI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/7308/3/AZIAN%20HARIRI%20WATERMARK.pdf
_version_	1747831126880157696

Conceptual design of a small non-rigid airship with particular attention to its static and dynamic stability

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