Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5470920 | Applied Mathematical Modelling | 2017 | 29 Pages |
Abstract
This paper presents a method for determining the nonlinear dynamic responses of structures under moving loads. The load is considered as a four degrees-of-freedom system with linear suspensions and tires flexibility, and the structure is modeled as an Euler-Bernoulli beam with simply supported at both ends. The nonlinear dynamic interaction of the load-structure system is discussed, and KelvinâVoigt material model is employed for the beam. The nonlinear partial differential equations of the dynamic interaction are derived by using the von Kármán nonlinear theory and D'Alembert's principle. Based on the Galerkin method, the partial differential equations of the system are transformed into nonlinear ordinary equations, which can be solved by using the Newmark method and NewtonâRaphson iteration method. To validate the approach proposed in this paper, the comparison are performed using a moving mass and a moving oscillator as the excitation sources, and the investigations demonstrate good reliability.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
Sheng G.G., Wang X.,