Coupled systems mechanics

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The plate on the nonlinear dynamic foundation under moving load

  • Phuoc T. Nguyen (Faculty of Civil Engineering, Ho Chi Minh City Open University) ;
  • Thieu V. Vi (Faculty of Civil Engineering, Ho Chi Minh City Open University) ;
  • Tuan T. Nguyen (Faculty of Civil Engineering, Ho Chi Minh City Open University) ;
  • Van T. Vu (Department of Civil Engineering, Ho Chi Minh City University of Achitecture)
  • Received : 2022.02.14
  • Accepted : 2023.03.03
  • Published : 2023.02.25
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Abstract

First introduced in 2016, the dynamic foundation model is an interesting topic in which the foundation is described close to reality by taking into account the influence of the foundation mass in the calculation of oscillation and is an important parameter that should be considered. In this paper, a follow-up investigation is conducted with the object of the Mindlin plate on a nonlinear dynamic foundation under moving loads. The base model includes nonlinear elastic springs, linear Pasternak parameters, viscous damping, and foundation mass. The problem is formulated by the finite element analysis and solved by the Newmark-β method. The displacement results at the center of the plate are analyzed and discussed with the change of various parameters including the nonlinear stiffness, the foundation mass, and the load velocity. The dynamic response of the plate sufficiently depends on the foundation mass.

Keywords

References

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