“MULTIDISCIPLINARY SHAKING TABLE DESIGN TEST”
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Date
2021
Authors
Fadi Zaid
Hasan Hawari
Maen Arabasi
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Abstract
The collapse of buildings and residential facilities are resulted from the horizontal vibrations of earthquakes at a range of frequency of (0-10) Hz. Also, the physical problems of back pain or brain concussion resulted from, usually at frequency rate of (0-5) Hz, of vehicle seats in the long run. This project is trying to reach solutions to these problems and find the gaps that the engineers fell into. This study is carried out by designing a bench-mark scale shaking table which intended to simulate these vibrations in multi-axis (X – Y and Z ) axis and try to obtain the best design so that it takes into account all of the size, cost, multidisciplinary and high efficiency.
So in this project a shaking table design is expected take into account all of the previous matters and be in more than one axis, and will cover a range of frequency (0-10) Hz in (X-Y) Axis for amplitude of ±7 cm, and (0-5) Hz in Z-Axis for amplitude of ±1 cm.
The project of the Z-axis shaking table was practically applied with two different designs, and accordingly the results were taken, the relationship between the amplitude and the time describing the movement of the table vibration was obtained, and the error was calculated between the input and output frequency, not exceeding 10% in the first case and an error not exceeding 7 % in the second case.