BEM-FEM coupling for acoustic effects on aeroelastic stability of structures
A series of work has been carried out to develop the foundation for the computational scheme for the calculation of the influence of the acoustic disturbance to the aeroelastic stability of the structure. The generic approach consists of three parts. The first is the formulation of the acoustic wave...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Tech Science Press
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/28839/1/BEM%20FEM%20coupling%20for%20acoustic%20effects%20on%20aeroelastic%20stability%20of%20structures.pdf |
| _version_ | 1825947394801401856 |
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| author | Djojodihardjo, Harijono Safari, Irtan |
| author_facet | Djojodihardjo, Harijono Safari, Irtan |
| author_sort | Djojodihardjo, Harijono |
| collection | UPM |
| description | A series of work has been carried out to develop the foundation for the computational scheme for the calculation of the influence of the acoustic disturbance to the aeroelastic stability of the structure. The generic approach consists of three parts. The first is the formulation of the acoustic wave propagation governed by the Helmholtz equation by using boundary element approach, which then allows the calculation of the acoustic pressure on the acoustic-structure boundaries. The structural dynamic problem is formulated using finite element approach. The third part involves the calculation of the unsteady aerodynamics loading on the structure using generic unsteady aerodynamics computational method. Analogous to the treatment of dynamic aeroelastic stability problem of structure, the effect of acoustic pressure disturbance to the aeroelastic structure is considered to consist of structural motion independent incident acoustic pressure and structural motion dependent acoustic pressure, referred to as the acoustic aerodynamic analogy. Results are presented and compared to those obtained in earlier work. |
| first_indexed | 2024-03-06T08:12:43Z |
| format | Article |
| id | upm.eprints-28839 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:12:43Z |
| publishDate | 2013 |
| publisher | Tech Science Press |
| record_format | dspace |
| spelling | upm.eprints-288392015-10-07T06:45:50Z http://psasir.upm.edu.my/id/eprint/28839/ BEM-FEM coupling for acoustic effects on aeroelastic stability of structures Djojodihardjo, Harijono Safari, Irtan A series of work has been carried out to develop the foundation for the computational scheme for the calculation of the influence of the acoustic disturbance to the aeroelastic stability of the structure. The generic approach consists of three parts. The first is the formulation of the acoustic wave propagation governed by the Helmholtz equation by using boundary element approach, which then allows the calculation of the acoustic pressure on the acoustic-structure boundaries. The structural dynamic problem is formulated using finite element approach. The third part involves the calculation of the unsteady aerodynamics loading on the structure using generic unsteady aerodynamics computational method. Analogous to the treatment of dynamic aeroelastic stability problem of structure, the effect of acoustic pressure disturbance to the aeroelastic structure is considered to consist of structural motion independent incident acoustic pressure and structural motion dependent acoustic pressure, referred to as the acoustic aerodynamic analogy. Results are presented and compared to those obtained in earlier work. Tech Science Press 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/28839/1/BEM%20FEM%20coupling%20for%20acoustic%20effects%20on%20aeroelastic%20stability%20of%20structures.pdf Djojodihardjo, Harijono and Safari, Irtan (2013) BEM-FEM coupling for acoustic effects on aeroelastic stability of structures. Computer Modeling in Engineering and Sciences, 91 (3). pp. 205-234. ISSN 1526-1492; ESSN: 1526-1506 |
| spellingShingle | Djojodihardjo, Harijono Safari, Irtan BEM-FEM coupling for acoustic effects on aeroelastic stability of structures |
| title | BEM-FEM coupling for acoustic effects on aeroelastic stability of structures |
| title_full | BEM-FEM coupling for acoustic effects on aeroelastic stability of structures |
| title_fullStr | BEM-FEM coupling for acoustic effects on aeroelastic stability of structures |
| title_full_unstemmed | BEM-FEM coupling for acoustic effects on aeroelastic stability of structures |
| title_short | BEM-FEM coupling for acoustic effects on aeroelastic stability of structures |
| title_sort | bem fem coupling for acoustic effects on aeroelastic stability of structures |
| url | http://psasir.upm.edu.my/id/eprint/28839/1/BEM%20FEM%20coupling%20for%20acoustic%20effects%20on%20aeroelastic%20stability%20of%20structures.pdf |
| work_keys_str_mv | AT djojodihardjoharijono bemfemcouplingforacousticeffectsonaeroelasticstabilityofstructures AT safariirtan bemfemcouplingforacousticeffectsonaeroelasticstabilityofstructures |