Free Vibration of Sandwich Panels with Smart Magneto-Rheological Layers and Flexible Cores
Publish place: Journal of Solid Mechanics، Vol: 8، Issue: 1
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JSMA-8-1_002
تاریخ نمایه سازی: 12 اسفند 1398
Abstract:
This is the first study on the free vibrational behavior of sandwich panels with flexible core in the presence of smart sheets of oil which is capable of the excitation of magnetic field. In order to model the core, the improved high order theory of sandwich sheets was used by a polynomial with unknown coefficients first degree shear theory was used for the sheets. The derived equations based on Hamilton principle with simple support boundary condition for upper and lower sheets were solved using Navier technique. Accuracy and precision of the theory were investigated by comparing the results of this study with those of analytical and numerical works. In the conclusion section, effect of the intensity of magnetic field and other physical parameters including ratio of sheet s length to width, ratio of sheet s length to thickness, ratio of core thickness to sheet s overall thickness, and ratio of oil layer thickness to sheet s overall thickness on natural frequency was investigated.
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Authors
G Payganeh
School of Mechanical Engineering, Shahid Rajaee Teacher Training University (SRTTU), Tehran, Iran
K Malekzadeh
Structural Analysis and Simulation Department,Space Research Institute, Malek Ashtar University of Technology
H Malek-Mohammadi
School of Mechanical Engineering, Shahid Rajaee Teacher Training University (SRTTU), Tehran, Iran
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