Damped vibration of a nonlocal nanobeam resting on viscoelastic foundation: fractional derivative model with two retardation times and fractional parameters
Само за регистроване кориснике
2017
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In this paper, we investigate the free damped vibration of a nanobeam resting on viscoelastic foundation. Nanobeam and viscoelastic foundation are modeled using nonlocal elasticity and fractional order viscoelasticity theories. Motion equation is derived using D'Alambert's principle and involves two retardation times and fractional order derivative parameters regarding to a nanobeam and viscoelastic foundation. The analytical solution is obtained using the Laplace transform method and it is given as a sum of two terms. First term denoting the drift of the system's equilibrium position is given as an improper integral taken along two sides of the cut of complex plane. Two complex conjugate roots located in the left half-plane of the complex plane determine the second term describing the damped vibration around equilibrium position. Results for complex roots of characteristic equation obtained for a single nanobeam without viscoelastic foundation, where imaginary parts represent damped f...requencies, are validated with the results found in the literature for natural frequencies of a single-walled carbon nanotube obtained from molecular dynamics simulations. In order to examine the effects of nonlocal parameter, fractional order parameters and retardation times on the behavior of characteristic equation roots in the complex plane and the time-response of nanobeam, several numerical examples are given.
Кључне речи:
Viscoelasticity / Nonlocal elasticity / Nanocomposites / Nanobeams / Fractional derivativesИзвор:
Meccanica, 2017, 52, 1-2, 363-382Издавач:
- Springer, Dordrecht
Финансирање / пројекти:
- Динамика хибридних система сложених структура. Механика материјала (RS-MESTD-Basic Research (BR or ON)-174001)
- Динамичка стабилност и нестабилност механичких система под дејством стохастичких поремећаја (RS-MESTD-Basic Research (BR or ON)-174011)
- Одрживост и унапређење машинских система у енергетици и транспорту применом форензичког инжењерства, еко и робуст дизајна (RS-MESTD-Technological Development (TD or TR)-35006)
DOI: 10.1007/s11012-016-0417-z
ISSN: 0025-6455
WoS: 000389603900024
Scopus: 2-s2.0-84962154864
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Cajić, Milan AU - Karličić, Danilo AU - Lazarević, Mihailo PY - 2017 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2527 AB - In this paper, we investigate the free damped vibration of a nanobeam resting on viscoelastic foundation. Nanobeam and viscoelastic foundation are modeled using nonlocal elasticity and fractional order viscoelasticity theories. Motion equation is derived using D'Alambert's principle and involves two retardation times and fractional order derivative parameters regarding to a nanobeam and viscoelastic foundation. The analytical solution is obtained using the Laplace transform method and it is given as a sum of two terms. First term denoting the drift of the system's equilibrium position is given as an improper integral taken along two sides of the cut of complex plane. Two complex conjugate roots located in the left half-plane of the complex plane determine the second term describing the damped vibration around equilibrium position. Results for complex roots of characteristic equation obtained for a single nanobeam without viscoelastic foundation, where imaginary parts represent damped frequencies, are validated with the results found in the literature for natural frequencies of a single-walled carbon nanotube obtained from molecular dynamics simulations. In order to examine the effects of nonlocal parameter, fractional order parameters and retardation times on the behavior of characteristic equation roots in the complex plane and the time-response of nanobeam, several numerical examples are given. PB - Springer, Dordrecht T2 - Meccanica T1 - Damped vibration of a nonlocal nanobeam resting on viscoelastic foundation: fractional derivative model with two retardation times and fractional parameters EP - 382 IS - 1-2 SP - 363 VL - 52 DO - 10.1007/s11012-016-0417-z ER -
@article{ author = "Cajić, Milan and Karličić, Danilo and Lazarević, Mihailo", year = "2017", abstract = "In this paper, we investigate the free damped vibration of a nanobeam resting on viscoelastic foundation. Nanobeam and viscoelastic foundation are modeled using nonlocal elasticity and fractional order viscoelasticity theories. Motion equation is derived using D'Alambert's principle and involves two retardation times and fractional order derivative parameters regarding to a nanobeam and viscoelastic foundation. The analytical solution is obtained using the Laplace transform method and it is given as a sum of two terms. First term denoting the drift of the system's equilibrium position is given as an improper integral taken along two sides of the cut of complex plane. Two complex conjugate roots located in the left half-plane of the complex plane determine the second term describing the damped vibration around equilibrium position. Results for complex roots of characteristic equation obtained for a single nanobeam without viscoelastic foundation, where imaginary parts represent damped frequencies, are validated with the results found in the literature for natural frequencies of a single-walled carbon nanotube obtained from molecular dynamics simulations. In order to examine the effects of nonlocal parameter, fractional order parameters and retardation times on the behavior of characteristic equation roots in the complex plane and the time-response of nanobeam, several numerical examples are given.", publisher = "Springer, Dordrecht", journal = "Meccanica", title = "Damped vibration of a nonlocal nanobeam resting on viscoelastic foundation: fractional derivative model with two retardation times and fractional parameters", pages = "382-363", number = "1-2", volume = "52", doi = "10.1007/s11012-016-0417-z" }
Cajić, M., Karličić, D.,& Lazarević, M.. (2017). Damped vibration of a nonlocal nanobeam resting on viscoelastic foundation: fractional derivative model with two retardation times and fractional parameters. in Meccanica Springer, Dordrecht., 52(1-2), 363-382. https://doi.org/10.1007/s11012-016-0417-z
Cajić M, Karličić D, Lazarević M. Damped vibration of a nonlocal nanobeam resting on viscoelastic foundation: fractional derivative model with two retardation times and fractional parameters. in Meccanica. 2017;52(1-2):363-382. doi:10.1007/s11012-016-0417-z .
Cajić, Milan, Karličić, Danilo, Lazarević, Mihailo, "Damped vibration of a nonlocal nanobeam resting on viscoelastic foundation: fractional derivative model with two retardation times and fractional parameters" in Meccanica, 52, no. 1-2 (2017):363-382, https://doi.org/10.1007/s11012-016-0417-z . .