Conversion Technique From 2D To 3D Model For A Shape-Changing Aircraft Slat Mechanism

Airframe noise reduction is a topic being investigated for the well-being of people living close to airports. This type of noise can occur between the high-lift systems and main body of the airfoil. The proposed shape-changing mechanism is an alternative to reduce airframe noise by eliminating the g...

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Main Author: Ismail, Mohammad Hazrin
Format: Thesis
Language:English
English
Published: 2018
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Online Access:http://eprints.utem.edu.my/id/eprint/24853/1/Conversion%20Technique%20From%202d%20To%203d%20Model%20For%20A%20Shape-Changing%20Aircraft%20Slat%20Mechanism.pdf
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institution Universiti Teknikal Malaysia Melaka
collection UTeM Repository
language English
English
advisor Shamsudin, Shamsul Anuar

topic T Technology (General)
TS Manufactures
spellingShingle T Technology (General)
TS Manufactures
Ismail, Mohammad Hazrin
Conversion Technique From 2D To 3D Model For A Shape-Changing Aircraft Slat Mechanism
description Airframe noise reduction is a topic being investigated for the well-being of people living close to airports. This type of noise can occur between the high-lift systems and main body of the airfoil. The proposed shape-changing mechanism is an alternative to reduce airframe noise by eliminating the gap during deployment of the high-lift systems. This work presents a new design of the 30P30N wing, which focusses on installing a shape-changing slat into the systems. This work applies a chain of rigid body wing segments connected by revolute and prismatic joints that are capable of approximating a shape change defined by a set of morphed slat design profiles. The [C M q slat segment design was created as a result of optimised segmentation process using the Shapechanger software where C is a constant curvature segment that may change length, while M is a mean segment of fixed length. The XY data are exported into CATIA software through macros command. To achieve a single degree of freedom (DOF), a building-block approach is employed to mechanise the fixed-end shape-changing chain by using Geometric Constraint Programming as an effective method to design the mechanism. Lastly, a small scale threedimensional model is developed to mechanise the mechanism driven by a single actuator. Related results showed that the shape-changing airfoil that deploys without a gap between the slat and main body, has a pressure coefficient of around -2.0 whereas the conventional one with gap hovers at -1.0. In addition, the values of Sound Pressure Level (SPL) were improved by maintaining below 100 dB near the slat portion of the airfoil.
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Ismail, Mohammad Hazrin
author_facet Ismail, Mohammad Hazrin
author_sort Ismail, Mohammad Hazrin
title Conversion Technique From 2D To 3D Model For A Shape-Changing Aircraft Slat Mechanism
title_short Conversion Technique From 2D To 3D Model For A Shape-Changing Aircraft Slat Mechanism
title_full Conversion Technique From 2D To 3D Model For A Shape-Changing Aircraft Slat Mechanism
title_fullStr Conversion Technique From 2D To 3D Model For A Shape-Changing Aircraft Slat Mechanism
title_full_unstemmed Conversion Technique From 2D To 3D Model For A Shape-Changing Aircraft Slat Mechanism
title_sort conversion technique from 2d to 3d model for a shape-changing aircraft slat mechanism
granting_institution Universiti Teknikal Malaysia Melaka
granting_department Faculty Of Mechanical Engineering
publishDate 2018
url http://eprints.utem.edu.my/id/eprint/24853/1/Conversion%20Technique%20From%202d%20To%203d%20Model%20For%20A%20Shape-Changing%20Aircraft%20Slat%20Mechanism.pdf
http://eprints.utem.edu.my/id/eprint/24853/2/Conversion%20Technique%20From%202d%20To%203d%20Model%20For%20A%20Shape-Changing%20Aircraft%20Slat%20Mechanism.pdf
_version_ 1747834096846897152
spelling my-utem-ep.248532022-02-11T10:26:37Z Conversion Technique From 2D To 3D Model For A Shape-Changing Aircraft Slat Mechanism 2018 Ismail, Mohammad Hazrin T Technology (General) TS Manufactures Airframe noise reduction is a topic being investigated for the well-being of people living close to airports. This type of noise can occur between the high-lift systems and main body of the airfoil. The proposed shape-changing mechanism is an alternative to reduce airframe noise by eliminating the gap during deployment of the high-lift systems. This work presents a new design of the 30P30N wing, which focusses on installing a shape-changing slat into the systems. This work applies a chain of rigid body wing segments connected by revolute and prismatic joints that are capable of approximating a shape change defined by a set of morphed slat design profiles. The [C M q slat segment design was created as a result of optimised segmentation process using the Shapechanger software where C is a constant curvature segment that may change length, while M is a mean segment of fixed length. The XY data are exported into CATIA software through macros command. To achieve a single degree of freedom (DOF), a building-block approach is employed to mechanise the fixed-end shape-changing chain by using Geometric Constraint Programming as an effective method to design the mechanism. Lastly, a small scale threedimensional model is developed to mechanise the mechanism driven by a single actuator. Related results showed that the shape-changing airfoil that deploys without a gap between the slat and main body, has a pressure coefficient of around -2.0 whereas the conventional one with gap hovers at -1.0. In addition, the values of Sound Pressure Level (SPL) were improved by maintaining below 100 dB near the slat portion of the airfoil. 2018 Thesis http://eprints.utem.edu.my/id/eprint/24853/ http://eprints.utem.edu.my/id/eprint/24853/1/Conversion%20Technique%20From%202d%20To%203d%20Model%20For%20A%20Shape-Changing%20Aircraft%20Slat%20Mechanism.pdf text en public http://eprints.utem.edu.my/id/eprint/24853/2/Conversion%20Technique%20From%202d%20To%203d%20Model%20For%20A%20Shape-Changing%20Aircraft%20Slat%20Mechanism.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=117007 mphil masters Universiti Teknikal Malaysia Melaka Faculty Of Mechanical Engineering Shamsudin, Shamsul Anuar 1. Ambike, S.S. and Schmiedeler, J.P., 2007. Application of Geometric Constraint Programming to the Kinematic Design of Three-Point Hitches. Applied Engineering in Agriculture, 23 (I), pp. 13-21. 2. Ameduri, S., Brindisi, A,, Tiseo, B., Concilio, A., and Pecora, R., 2012. 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