Advanced Three-Axis Shake Table System for Comprehensive Earthquake Simulation and Structural Dynamics Research

Abstract

The development of a three-axis shake table is essential for advancing research in sensor validation, earthquake engineering, and structural dynamics. Traditional shake tables that exist provide one or two-dimensional motion where it limits the capability of three-dimensional (3D) movements in experiments conducted by engineers, researchers and users. This paper presents the design and development of a cost-effective 3-axis shake table which has the ability to produce independent motions in the X, Y and Z directions. The shake table consists of three dynamic plates, each axis supported by dual linear guides and driven by separate DC motors with a 12V voltage rating. This independent configuration of the axis allows the users for a precise control and generation of vibrations across all three axes, making it suitable for a wide range of testing applications. The design utilizes motor drivers for varying power to the motors and control the movement of the dynamic plates independently, which omits the requirement of encoders and reduce the production cost. The developed shake table offers a versatile and cost-effective solution for laboratories, earthquake engineering and structural health monitoring, where 3D motion capabilities are essential.