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- Mobaraki, H. A., et al.
(författare)
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Dynamic analysis of a laminated composite plate coupled with a piezoelectric energy harvester and traversed by a moving vehicle
- 2022
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Ingår i: Mechanics of Advanced Materials and Structures. - : Informa UK Limited. - 1537-6532 .- 1537-6494. ; 29:27, s. 6835-6853
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Tidskriftsartikel (refereegranskat)abstract
- The dynamic analysis is carried out of a laminated composite plate coupled with a piezoelectric energy harvester under the action of a moving vehicle. The finite element method along with Newmark’s method are applied to solve the discretized equations. Results are presented for two main cases: (i) free and forced vibrations of the laminated composite plate with no harvester and (ii) forced vibrations of the plate coupled with the energy harvester. Several parameters–such as the symmetric and anti-symmetric layups, length of the harvester, and piezoelectric material parameters–are considered to study their effects on the electrical output.
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- Mobaraki, H. A., et al.
(författare)
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Forced vibration analysis of laminated composite plates under the action of a moving vehicle
- 2022
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Ingår i: Frattura ed Integrita Strutturale. - 1971-8993. ; 16:59, s. 198-211
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Tidskriftsartikel (refereegranskat)abstract
- This paper provides a finite element analysis of laminated composite plates under the action of a moving vehicle. The vehicle is modeled as a rigid body with four suspension systems, each consisting of a springdashpot. Overall, the vehicle possesses three degrees of freedom: vertical, rolling, and pitching motions. The equations of motion of the plate are deduced based on first-order shear deformation theory. Using the EulerLagrange equations, the system of coupled equations of motion is extracted and solved by using the Newmark time discretization scheme. The algorithm is validated through the comparison of both the free and forced vibration results provided by the present model and exact or numerical results reported in the literature. The effects are investigated of several system parameters on the dynamic response.
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- Haghani, Milad, et al.
(författare)
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How COVID-19 transformed the landscape of transportation research: an integrative scoping review and roadmap for future research
- 2024
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Ingår i: Transportation Letters. - : Informa UK Limited. - 1942-7867 .- 1942-7875. ; 16:1, s. 43-88
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Forskningsöversikt (refereegranskat)abstract
- In the wake of the COVID-19 pandemic, scholars mobilized their efforts to address its far-reaching societal problems. With mobility restrictions being front and center of the pandemic, a new cohort of transportation science was developed within a short period of time. Here, we examine more than 400 studies related to COVID-19 published across transportation journals during 2020 and 2021. The aim is (i) to scope this newly developed segment of transportation research, (ii) outline the diversity of pandemic-related issues across various divisions of the transportation field and (iii) provide a roadmap for the future of this line of research. Common themes are identified and existing congruence and discrepancies across findings are discussed. Results show that although conventional methods of transportation research were adopted in virtually all COVID-19 studies, no pre-pandemic study was particularly instrumental in the development of this segment of transportation literature. The COVID-19 segment appears to have developed its own independent knowledge foundation, in that, it does not systemically and frequently look back at any particular pre-pandemic reference. Potential impacts of this newly developed segment on the metrics of transportation journals are quantified and discussed.
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