Summary

Miniature scale earthquake table with a focus on accuracy and rigidity.

Watch a test in action.

Purpose

For testing earthquake simulations on structures and soil at a 1:12 scale.

Features

• Ball screw linear actuation
• Servo driver
• On board microcontroller sine wave generation
• Graphical PC interface for simple user control
• Acceleration test data acquisition and storage at high sample rates
• Safety mechanism for driver controlle
• Accelerations up to 0.7g
• Misumi extrusion table for ease of testing different objects

Pictures

Rev 1 Drive System and Wiring

Two Degree of Freedom test setup