Multiphysical numerical (FE–BE) solution of sound radiation responses of laminated sandwich shell panel including curvature effect
In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Sharma, Nitin [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020transfer abstract |
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| Schlagwörter: |
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| Umfang: |
19 |
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| Übergeordnetes Werk: |
Enthalten in: Growth and welfare implications of sector-specific innovations - Güner, İlhan ELSEVIER, 2022, an international journal, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:80 ; year:2020 ; number:5 ; day:1 ; month:09 ; pages:1221-1239 ; extent:19 |
| Links: |
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| DOI / URN: |
10.1016/j.camwa.2020.06.010 |
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ELV05098845X |
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| 245 | 1 | 0 | |a Multiphysical numerical (FE–BE) solution of sound radiation responses of laminated sandwich shell panel including curvature effect |
| 264 | 1 | |c 2020transfer abstract | |
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| 520 | |a In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. | ||
| 520 | |a In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. | ||
| 650 | 7 | |a MATLAB routine |2 Elsevier | |
| 650 | 7 | |a Sandwich panel |2 Elsevier | |
| 650 | 7 | |a HSDT |2 Elsevier | |
| 650 | 7 | |a FEM–BEM scheme |2 Elsevier | |
| 650 | 7 | |a Vibroacoustic response |2 Elsevier | |
| 700 | 1 | |a Panda, Subrata Kumar |4 oth | |
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10.1016/j.camwa.2020.06.010 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001093.pica (DE-627)ELV05098845X (ELSEVIER)S0898-1221(20)30259-5 DE-627 ger DE-627 rakwb eng 330 VZ 83.03 bkl 83.10 bkl Sharma, Nitin verfasserin aut Multiphysical numerical (FE–BE) solution of sound radiation responses of laminated sandwich shell panel including curvature effect 2020transfer abstract 19 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. MATLAB routine Elsevier Sandwich panel Elsevier HSDT Elsevier FEM–BEM scheme Elsevier Vibroacoustic response Elsevier Panda, Subrata Kumar oth Enthalten in Elsevier Science Güner, İlhan ELSEVIER Growth and welfare implications of sector-specific innovations 2022 an international journal Amsterdam [u.a.] (DE-627)ELV008987521 volume:80 year:2020 number:5 day:1 month:09 pages:1221-1239 extent:19 https://doi.org/10.1016/j.camwa.2020.06.010 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 83.03 Methoden und Techniken der Volkswirtschaft VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 80 2020 5 1 0901 1221-1239 19 |
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10.1016/j.camwa.2020.06.010 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001093.pica (DE-627)ELV05098845X (ELSEVIER)S0898-1221(20)30259-5 DE-627 ger DE-627 rakwb eng 330 VZ 83.03 bkl 83.10 bkl Sharma, Nitin verfasserin aut Multiphysical numerical (FE–BE) solution of sound radiation responses of laminated sandwich shell panel including curvature effect 2020transfer abstract 19 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. MATLAB routine Elsevier Sandwich panel Elsevier HSDT Elsevier FEM–BEM scheme Elsevier Vibroacoustic response Elsevier Panda, Subrata Kumar oth Enthalten in Elsevier Science Güner, İlhan ELSEVIER Growth and welfare implications of sector-specific innovations 2022 an international journal Amsterdam [u.a.] (DE-627)ELV008987521 volume:80 year:2020 number:5 day:1 month:09 pages:1221-1239 extent:19 https://doi.org/10.1016/j.camwa.2020.06.010 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 83.03 Methoden und Techniken der Volkswirtschaft VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 80 2020 5 1 0901 1221-1239 19 |
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10.1016/j.camwa.2020.06.010 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001093.pica (DE-627)ELV05098845X (ELSEVIER)S0898-1221(20)30259-5 DE-627 ger DE-627 rakwb eng 330 VZ 83.03 bkl 83.10 bkl Sharma, Nitin verfasserin aut Multiphysical numerical (FE–BE) solution of sound radiation responses of laminated sandwich shell panel including curvature effect 2020transfer abstract 19 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. MATLAB routine Elsevier Sandwich panel Elsevier HSDT Elsevier FEM–BEM scheme Elsevier Vibroacoustic response Elsevier Panda, Subrata Kumar oth Enthalten in Elsevier Science Güner, İlhan ELSEVIER Growth and welfare implications of sector-specific innovations 2022 an international journal Amsterdam [u.a.] (DE-627)ELV008987521 volume:80 year:2020 number:5 day:1 month:09 pages:1221-1239 extent:19 https://doi.org/10.1016/j.camwa.2020.06.010 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 83.03 Methoden und Techniken der Volkswirtschaft VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 80 2020 5 1 0901 1221-1239 19 |
| allfieldsGer |
10.1016/j.camwa.2020.06.010 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001093.pica (DE-627)ELV05098845X (ELSEVIER)S0898-1221(20)30259-5 DE-627 ger DE-627 rakwb eng 330 VZ 83.03 bkl 83.10 bkl Sharma, Nitin verfasserin aut Multiphysical numerical (FE–BE) solution of sound radiation responses of laminated sandwich shell panel including curvature effect 2020transfer abstract 19 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. MATLAB routine Elsevier Sandwich panel Elsevier HSDT Elsevier FEM–BEM scheme Elsevier Vibroacoustic response Elsevier Panda, Subrata Kumar oth Enthalten in Elsevier Science Güner, İlhan ELSEVIER Growth and welfare implications of sector-specific innovations 2022 an international journal Amsterdam [u.a.] (DE-627)ELV008987521 volume:80 year:2020 number:5 day:1 month:09 pages:1221-1239 extent:19 https://doi.org/10.1016/j.camwa.2020.06.010 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 83.03 Methoden und Techniken der Volkswirtschaft VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 80 2020 5 1 0901 1221-1239 19 |
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10.1016/j.camwa.2020.06.010 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001093.pica (DE-627)ELV05098845X (ELSEVIER)S0898-1221(20)30259-5 DE-627 ger DE-627 rakwb eng 330 VZ 83.03 bkl 83.10 bkl Sharma, Nitin verfasserin aut Multiphysical numerical (FE–BE) solution of sound radiation responses of laminated sandwich shell panel including curvature effect 2020transfer abstract 19 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. MATLAB routine Elsevier Sandwich panel Elsevier HSDT Elsevier FEM–BEM scheme Elsevier Vibroacoustic response Elsevier Panda, Subrata Kumar oth Enthalten in Elsevier Science Güner, İlhan ELSEVIER Growth and welfare implications of sector-specific innovations 2022 an international journal Amsterdam [u.a.] (DE-627)ELV008987521 volume:80 year:2020 number:5 day:1 month:09 pages:1221-1239 extent:19 https://doi.org/10.1016/j.camwa.2020.06.010 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 83.03 Methoden und Techniken der Volkswirtschaft VZ 83.10 Wirtschaftstheorie: Allgemeines VZ AR 80 2020 5 1 0901 1221-1239 19 |
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multiphysical numerical (fe–be) solution of sound radiation responses of laminated sandwich shell panel including curvature effect |
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Multiphysical numerical (FE–BE) solution of sound radiation responses of laminated sandwich shell panel including curvature effect |
| abstract |
In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. |
| abstractGer |
In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. |
| abstract_unstemmed |
In this paper, a numerical scheme is prepared using the higher-order shear deformation type of kinematic model with the help of a coupled finite and boundary elements (FE–BE) to evaluate the vibroacoustic responses of laminated composite sandwich curved shell panels. The panel is under the influence of a harmonic point load. Further, an FE–BE combined technique is utilized to prepare a generic computer code (MATLAB environment) for the numerical prediction via the proposed mathematical formulation. The structural frequency and the subsequent sound relevant data are obtained by solving the final form of the multiphysics model. In this regard, the structural system equation is derived through Hamilton’s principle and the Helmholtz wave equation for the computation of acoustic responses. The performance of the proposed scheme is established initially through the convergence and the corresponding validation studies. The comparison cases are made with the available published benchmark frequency (free vibration) as well as the acoustic data. Appropriate numbers of numerical examples are solved to draw the meaningful inferences of various factors to show the significant influences on the acoustic radiation responses of the curved sandwich panel type of structural components. The curvature ratio is showing the accentuated influences on the sound radiation responses for the low-frequency ranges whereas the increase in the thickness ratio, i.e. the ratio of core to face leads to an accentuated radiated sound power. |
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