Electric cylinders are the core driving components of earthquake simulation shaking tables. Compared to
traditional hydraulic drive solutions, they are widely used in earthquake simulation scenarios due to their
advantages such as high precision and low pollution. Specific application details are as follows:
I. Core Drive Applications
1. Single-Axis/Multi-Axis Shaking Table Drive: A single servo electric cylinder can drive a one-dimensional
earthquake simulation shaking table, reproducing earthquake waveforms in the X/Y/Z directions. A six-deg
ree-of-freedom earthquake simulation platform uses six sets of high-precision servo electric cylinders for
coordinated drive, based on the Stewart parallel mechanism principle, achieving full-dimensional coupled
motion of three-dimensional translation and three-axis rotation, completely reproducing the multi-dimens
ional vibration characteristics of real earthquakes, with excellent phase and amplitude accuracy.
2. Small-Scale Test Scenario Adaptation: Small-scale earthquake simulation shaking tables driven by electric
cylinders are specifically designed for university teaching and seismic testing of small structural specimens.
They can stably reproduce various seismic waves and complete seismic performance testing of small buil
ding components and cultural relic models, solving the pain points of traditional hydraulic shaking tables
such as oil leakage, pollution, and high maintenance costs.
II. Civilian Application Scenarios
In earthquake science popularization drill simulators, independent servo electric cylinders are configured
horizontally and vertically to drive the double-layer swaying platform of the simulated cabin, accurately re
producing the vibration effects of earthquakes of different magnitudes from 3 to 8. The movement is smooth
and low-noise, allowing participants to intuitively learn earthquake safety knowledge. This type of solution
has won the Anhui Provincial Patent Award and has been widely implemented in science popularization
venues in many parts of China.
III. Core Technological Advantages
The electric cylinder converts the rotational motion of the servo motor into linear motion. Combined with a
three-parameter control algorithm and power-law iterative control technology, it can significantly improve
the accuracy of earthquake waveform reproduction. The overall structure is simple and easy to control, req
uiring no complex hydraulic oil maintenance system, making it suitable for long-term stable operation in ex
perimental and science popularization scenarios.
