Nonlinear free vibration analysis of ultra-thin organic solar plates

Nam V. Nguyen, H. Nguyen-Xuan
Author affiliations

Authors

  • Nam V. Nguyen \(^1\) Faculty of Mechanical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam https://orcid.org/0000-0001-8528-0352
  • H. Nguyen-Xuan \(^2\) CIRTech Institute, HUTECH University, Ho Chi Minh City, Vietnam

DOI:

https://doi.org/10.15625/0866-7136/23709

Keywords:

nonlinear free vibration, ultra-thin organic solar cells, refined higher-order shear deformation theory, isogeometric analysis

Abstract

Organic photovoltaic devices have gained significant attention as promising solutions to global energy challenges, owing to their unique advantages, including lightweight construction, optical transparency, mechanical flexibility, and low production cost. In this context, the present work aims to introduce an efficient computational approach to investigate the nonlinear free vibration characteristics of ultra-thin organic solar panels. To this end, the solar panel structure is modeled as a multilayered plate, in which each functional layer is assumed to be isotropic. The fundamental displacements are formulated using a refined higher-order shear deformation theory with four independent variables, combined with the von Kármán nonlinear strain assumption to capture large-amplitude effects. The nonlinear natural frequencies are subsequently determined using the non-uniform rational B-splines (NURBS)-based isogeometric analysis (IGA) in conjunction with an iterative displacement-control scheme. Several benchmark investigations are performed to validate the accuracy and robustness of the present formulation. Furthermore, the effects of several key factors, including boundary conditions, length-to-thickness ratios, and aspect dimensions, on the nonlinear vibration characteristics is comprehensively investigated in this work. Several significant remarks are drawn to support the design and optimization of ultra-thin organic solar plate structures in practical engineering applications.

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Published

09-12-2025

How to Cite

Nguyen, N. V., & Nguyen-Xuan, H. (2025). Nonlinear free vibration analysis of ultra-thin organic solar plates. Vietnam Journal of Mechanics, 48(1), 81–93. https://doi.org/10.15625/0866-7136/23709

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