IMPROVED MODEL OF VIBRATORY DAMPED GLASS REINFORCED PLASTIC (GRP) | ||||
| ERJ. Engineering Research Journal | ||||
| Article 6, Volume 24, Issue 3, July 2001, Page 69-87 PDF (678.22 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2001.71051 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Ahmed Maher1; Fawkia Ramadan2 | ||||
| 1Prof. of Applied mechanics. Production and Mechanical Design Department, Faculty of Engineering, Minoufiya University, Shebin El-Kom Egypt. | ||||
| 2Lecturer Production and Mechanical Design Department, Faculty of Engineering, Minoufiya University, Shebin El-Kom Egypt | ||||
| Abstract | ||||
| An improved model of modal parameters of glass reinforced plastic structures (GRP) is presented. The extensive analysis of :he fitted experimental results proves that the quasi uniform mass damping is the main feature of vibratory GRP structures. Consistent with the analysis it is stated that the number of boi~ndary degrees of freedom, code number, volume fraction and typical order of natural mode have significant effects respectively on controlling the type of each set of quasi rectangular hyperbolic relations associated with the vibration damping of GRP structures. The close agreement between the numerical results of-' the finite element model and the fitted experimental results shows the efficiency and applicability of the present modelling techniques, resulting in significant simplifications in solutions of idiosyncratic composite systems with lowest residual errors. | ||||
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