Acoustic effects on binary aeroelasticity model
Acoustics is the science concerning the study of sound. The effects of sound on structures attract overwhelm interests and numerous studies were carried out in this particular area. Many of the preliminary investigations show that acoustic pressure produces significant influences on structures su...
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| Format: | Article |
| Language: | en |
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Chulalongkorn University, Faculty of Engineering
2011
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| Online Access: | http://eprints.usm.my/38241/1/ACOUSTIC_EFFECTS_ON_BINARY_AEROELASTICITY_MODEL.pdf http://eprints.usm.my/38241/ http://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/108 |
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| author | Kok, Hwa Yu Djojodihardjo, Harijono Kadarman, A Halim |
| author_facet | Kok, Hwa Yu Djojodihardjo, Harijono Kadarman, A Halim |
| author_sort | Kok, Hwa Yu |
| building | Hamzah Sendut Library |
| collection | Institutional Repository |
| content_provider | Universiti Sains Malaysia |
| content_source | USM Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Acoustics is the science concerning the study of sound. The effects of
sound on structures attract overwhelm interests and numerous studies were carried out in
this particular area. Many of the preliminary investigations show that acoustic pressure
produces significant influences on structures such as thin plate, membrane and also highimpedance
medium like water (and other similar fluids). Thus, it is useful to investigate
structural response to acoustics on aircraft, especially on aircraft '"/ings, tails and control
surfaces which are vulnerable to flutter phenomena. The present paper describes the
modelling of structure-acoustic interaction to simulate the external acoustic effect on
binary flutter model. Here, the model is illustrated as a rectangular wing where the
aerodynamic wing model is constructed using strip theory \vith simplified unsteady
aerodynan1ics involving the terms for flap and pitch degree of freedom. The external
acoustic excitation, on the other hand, is modelled using a four-node quadrilateral
isoparametrlc element via finite element approach. Both equations are then carefully
coupled and solved using eigenvalue solution. Next the mentioned approach is
implemented in MATLAB and the outcome or the simulated results arc later described,
analyzed and illustrated. |
| format | Article |
| id | my.usm.eprints.38241 |
| institution | Universiti Sains Malaysia |
| language | en |
| publishDate | 2011 |
| publisher | Chulalongkorn University, Faculty of Engineering |
| record_format | eprints |
| spelling | my.usm.eprints.38241 http://eprints.usm.my/38241/ Acoustic effects on binary aeroelasticity model Kok, Hwa Yu Djojodihardjo, Harijono Kadarman, A Halim TL1-4050 Motor vehicles. Aeronautics. Astronautics Acoustics is the science concerning the study of sound. The effects of sound on structures attract overwhelm interests and numerous studies were carried out in this particular area. Many of the preliminary investigations show that acoustic pressure produces significant influences on structures such as thin plate, membrane and also highimpedance medium like water (and other similar fluids). Thus, it is useful to investigate structural response to acoustics on aircraft, especially on aircraft '"/ings, tails and control surfaces which are vulnerable to flutter phenomena. The present paper describes the modelling of structure-acoustic interaction to simulate the external acoustic effect on binary flutter model. Here, the model is illustrated as a rectangular wing where the aerodynamic wing model is constructed using strip theory \vith simplified unsteady aerodynan1ics involving the terms for flap and pitch degree of freedom. The external acoustic excitation, on the other hand, is modelled using a four-node quadrilateral isoparametrlc element via finite element approach. Both equations are then carefully coupled and solved using eigenvalue solution. Next the mentioned approach is implemented in MATLAB and the outcome or the simulated results arc later described, analyzed and illustrated. Chulalongkorn University, Faculty of Engineering 2011 Article PeerReviewed application/pdf en http://eprints.usm.my/38241/1/ACOUSTIC_EFFECTS_ON_BINARY_AEROELASTICITY_MODEL.pdf Kok, Hwa Yu and Djojodihardjo, Harijono and Kadarman, A Halim (2011) Acoustic effects on binary aeroelasticity model. Engineering Journal, 12 (2). pp. 123-130. ISSN 0125-8281 http://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/108 |
| spellingShingle | TL1-4050 Motor vehicles. Aeronautics. Astronautics Kok, Hwa Yu Djojodihardjo, Harijono Kadarman, A Halim Acoustic effects on binary aeroelasticity model |
| title | Acoustic effects on binary aeroelasticity model
|
| title_full | Acoustic effects on binary aeroelasticity model
|
| title_fullStr | Acoustic effects on binary aeroelasticity model
|
| title_full_unstemmed | Acoustic effects on binary aeroelasticity model
|
| title_short | Acoustic effects on binary aeroelasticity model
|
| title_sort | acoustic effects on binary aeroelasticity model |
| topic | TL1-4050 Motor vehicles. Aeronautics. Astronautics |
| url | http://eprints.usm.my/38241/1/ACOUSTIC_EFFECTS_ON_BINARY_AEROELASTICITY_MODEL.pdf http://eprints.usm.my/38241/ http://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/108 |
| url_provider | http://eprints.usm.my/ |