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Nonlinear vibration and stability of sandwich functionally graded porous plates reinforced with graphene platelets in subsonic flow on elastic foundation
https://orcid.org/0009-0009-5515-7615
Highlights Explored the impact of different pore types and structural parameters on the fundamental frequency of GPLR-SFGP plates, providing significant insights into the optimization of their mechanical performance. Investigated the critical divergence velocity of the plates under subsonic airflow, taking into account both the structural and Winkler-Pasternak elastic foundation parameters, which serves as a crucial reference for the design of stable and robust structures. Utilized the matcont toolbox to draw the nonlinear amplitude-frequency resonance response curve of the structure, providing an effective method for nonlinear dynamic analysis and advancing the understanding of the structure's nonlinear vibration behavior.
Abstract This paper investigates the nonlinear vibration and stability of a functionally graded porous sandwich plate reinforced with graphene platelets (GPLR-SFGP) interacting with subsonic airflow on elastic foundation. The plate comprises of a functionally graded porous core with graphene platelet reinforcement and two metal face layers. Utilizing Hamilton's principle, the nonlinear equation of the plate is exported and discretized into ordinary equations using the assumed modes method. The influence of porosity, GPL weight fraction, surface thickness ratio and Winkler Pasternak elastic foundation arguments on the critical divergence velocity of the plate under subsonic flow is revealed by calculating the system characteristic values. The Matcont toolbox is occupied to generate nonlinear amplitude frequency resonance curves, allowing for a comprehensive examination of the influence of these parameters on the nonlinear resonance behavior of the system. The GPLR-SFGP plate exhibits outstanding characteristics, including superior stiffness and a reduced mass, rendering it a suitable choice for exterior applications in airplanes, automobiles, and high-speed railways. The findings in this study can provide valuable insight into the key design parameters that significantly affect the performance of GPLR-SFGP plates, enabling future design efforts aimed at enhancing their efficacy and robustness in real-world applications.
Nonlinear vibration and stability of sandwich functionally graded porous plates reinforced with graphene platelets in subsonic flow on elastic foundation
https://orcid.org/0009-0009-5515-7615
Highlights Explored the impact of different pore types and structural parameters on the fundamental frequency of GPLR-SFGP plates, providing significant insights into the optimization of their mechanical performance. Investigated the critical divergence velocity of the plates under subsonic airflow, taking into account both the structural and Winkler-Pasternak elastic foundation parameters, which serves as a crucial reference for the design of stable and robust structures. Utilized the matcont toolbox to draw the nonlinear amplitude-frequency resonance response curve of the structure, providing an effective method for nonlinear dynamic analysis and advancing the understanding of the structure's nonlinear vibration behavior.
Abstract This paper investigates the nonlinear vibration and stability of a functionally graded porous sandwich plate reinforced with graphene platelets (GPLR-SFGP) interacting with subsonic airflow on elastic foundation. The plate comprises of a functionally graded porous core with graphene platelet reinforcement and two metal face layers. Utilizing Hamilton's principle, the nonlinear equation of the plate is exported and discretized into ordinary equations using the assumed modes method. The influence of porosity, GPL weight fraction, surface thickness ratio and Winkler Pasternak elastic foundation arguments on the critical divergence velocity of the plate under subsonic flow is revealed by calculating the system characteristic values. The Matcont toolbox is occupied to generate nonlinear amplitude frequency resonance curves, allowing for a comprehensive examination of the influence of these parameters on the nonlinear resonance behavior of the system. The GPLR-SFGP plate exhibits outstanding characteristics, including superior stiffness and a reduced mass, rendering it a suitable choice for exterior applications in airplanes, automobiles, and high-speed railways. The findings in this study can provide valuable insight into the key design parameters that significantly affect the performance of GPLR-SFGP plates, enabling future design efforts aimed at enhancing their efficacy and robustness in real-world applications.
Nonlinear vibration and stability of sandwich functionally graded porous plates reinforced with graphene platelets in subsonic flow on elastic foundation
https://orcid.org/0009-0009-5515-7615
Highlights Explored the impact of different pore types and structural parameters on the fundamental frequency of GPLR-SFGP plates, providing significant insights into the optimization of their mechanical performance. Investigated the critical divergence velocity of the plates under subsonic airflow, taking into account both the structural and Winkler-Pasternak elastic foundation parameters, which serves as a crucial reference for the design of stable and robust structures. Utilized the matcont toolbox to draw the nonlinear amplitude-frequency resonance response curve of the structure, providing an effective method for nonlinear dynamic analysis and advancing the understanding of the structure's nonlinear vibration behavior.
Abstract This paper investigates the nonlinear vibration and stability of a functionally graded porous sandwich plate reinforced with graphene platelets (GPLR-SFGP) interacting with subsonic airflow on elastic foundation. The plate comprises of a functionally graded porous core with graphene platelet reinforcement and two metal face layers. Utilizing Hamilton's principle, the nonlinear equation of the plate is exported and discretized into ordinary equations using the assumed modes method. The influence of porosity, GPL weight fraction, surface thickness ratio and Winkler Pasternak elastic foundation arguments on the critical divergence velocity of the plate under subsonic flow is revealed by calculating the system characteristic values. The Matcont toolbox is occupied to generate nonlinear amplitude frequency resonance curves, allowing for a comprehensive examination of the influence of these parameters on the nonlinear resonance behavior of the system. The GPLR-SFGP plate exhibits outstanding characteristics, including superior stiffness and a reduced mass, rendering it a suitable choice for exterior applications in airplanes, automobiles, and high-speed railways. The findings in this study can provide valuable insight into the key design parameters that significantly affect the performance of GPLR-SFGP plates, enabling future design efforts aimed at enhancing their efficacy and robustness in real-world applications.
Nonlinear vibration and stability of sandwich functionally graded porous plates reinforced with graphene platelets in subsonic flow on elastic foundation
Wang, Zongcheng (author) / Yao, Guo (author)
Thin-Walled Structures ; 194
2023-11-01
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2018
| British Library Online Contents | 2018
Isogeometric Analysis of functionally graded porous plates reinforced by graphene platelets
| British Library Online Contents | 2018
Isogeometric Analysis of functionally graded porous plates reinforced by graphene platelets
| British Library Online Contents | 2018