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Dynamic Response of a Finite Beam Subjected to a Moving Oscillator

Mottahedin, Aida | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 43107 (53)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Vafaei, Abolhassan
  7. Abstract:
  8. Vibration of a stationary structure excited by another structure moving on the surface of the stationary Structure is very common in engineering, such as vibration of bridges or railway track under travelling vehicles. In the simplest case, the moving structure maybe modeled as a constant load or a mass or an oscillator, in this case the moving mass is attached to the structure either by a spring or by a mass-spring assembly.The model of a moving mass brings some improvements to the model of the moving load where there is no inertia effect. However, the relative displacement between the moving structures and the beam cannot be considered in the moving mass model. A more appropriate model in applications is the moving oscillator model for which the stiffness of the coupling between the moving subsystem and the continuum is assumed to be finite. In the following, the problem of the vibration of the distributed parameter system due to the moving mass or oscillator will be referred to as the moving mass or moving oscillator problem, respectively. The purpose of this study is to investigate the dynamic response of a finite beam subjected to a moving oscillator.The finite beam is assumed to be an Euler-Bernoulli beam. Influences of the various mechanical properties of the system on the dynamic response with different boundary condition was studied,too
  9. Keywords:
  10. Traveling Mass ; Dynamic Response ; Boundary Conditions ; Moving Oscillator

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