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Vibration Control of One Dimensional Non-uniform Structures by Magnetorheological Materials

Naeimy, Hamed | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 47851 (58)
  4. University: Sharif University of Technology, International Campus, Kish Island
  5. Department: Science and Engineering
  6. Advisor(s): Behzad, Mehdi; Zabihollah, Abolghasem
  7. Abstract:
  8. Non-uniform composite structures are widely being utilized in many modern industries including aerospace and automobile and wind turbine machines. Excessive vibration in these structures leads to dynamic instability and structural failure. In the present work, the vibration control of non-uniform composite structure particularly trapezoidal plates has been investigated using magnetorheological materials. The application of various smart materials including magnetorheological (MR) elastomer and magnetorheological fluids has been reviewed for vibration control. A trapezoidal composite plate with holes filled by MR elastomer has been considered for numerical simulations. The effect of location of MR materials on vibration control has been investigated by introducing different location configurations. Vibration responses for each configuration have been determined using ABAQUS® software. Various numerical simulations have been presented to illustrate the performance and functionality of the non-uniform composite structures filled with MR elastomer materials. The effect of location of MR materials on the damping and frequency shift has been studied. It has been observed that adding the MR materials in non-uniform composite structures reduce the natural frequency of the structures. Damping properties significantly has been improved by adding MR materials to the non-uniform composite structures
  9. Keywords:
  10. Magnetorheological (MR)Fluid ; Trapezoidally Corrugated Plate ; Composite ; Vibration Control ; Magnetorheological Elastomer(MRE) ; Adjusting Natural Frequency

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