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This project will show you how to make an earthquake shake table to simulate earthquakes at different frequencies. Connect the model with a microcontroller to measure and visualize the earthquake intensity in Mind+. Then you can build earthquake-proof structures and test out their seismic resistance.
Video reference: https://youtu.be/EWlnYXfWSHI
For more class contents, please visit edu.dfrobot.
1 Box & 1 Cardboard
16 Straws
18 Pipe Cleaners
7 Bottle Caps (6 normal sizes, 1 slightly bigger)
4 Bubber Bans
1 Push Pin
1 micro:bit
The model simulates seismic ground motion during an earthquake. With a rotation sensor, you can change the speed of the motor to generate movement at different frequencies. It will be inspiring to test the effect of short and high-frequency earthquakes on buildings with different heights.
Use straws and pipe cleaners to build up the building from the base plate.
There are many ways to create earthquake-proof buildings, the most commonly used for tall buildings might be Tuned Mass Damper (check Taipei 101). I used several screw nuts as weight and suspend them from the top. You might need to test the height and length to get a better result. Add more structures like frames, braces to check how strong is your building. Download the sample program, collect and visualize the acceleration data from micro:bit, compare the data graphs to check the effectiveness of earthquake resistance.
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