Service
Seismic Testing
We conduct seismic testing of products requiring earthquake resistance using a large 3D shaking table. Actual seismic waves from the Great East Japan Earthquake and the Great Hanshin-Awaji Earthquake can be faithfully reproduced, and tests can also be performed using standard or artificial seismic waves. This is useful for the design of earthquake-resistant products.
Purpose
- To conduct seismic testing of products requiring earthquake resistance
Features of Our Large 3D Shaking Table
- Accommodates 20-foot Containers:Capable of testing large specimens, including full-size containers.
- Multi-modal Simulation:Reproduces vibrations, shocks, and motions encountered in maritime, rail, and trailer transport.
- Faithful Earthquake Waveform Reproduction:Accurately replicates acceleration, velocity, and displacement of seismic waves from major earthquakes.
- Comprehensive Analytical Data:Provides acceleration response spectra, transfer functions, and other data essential for earthquake-resistant design.
- Six Degrees of Freedom:Capable of combined excitation (pitch, roll, yaw) and 3-axis, 6-DOF motion.
- Large Table Size:2.6m x 6.2m platform allows for simultaneous testing of multiple specimens.
- Electro-hydraulic System:Suitable for testing liquid tanks and water tanks, with high resistance to leakage.
- Continuous and Repetitive Testing:Enables long-duration or repeated short waveform excitation without hydraulic pressure accumulation.
Reproducible Seismic and Vibration Waveforms
Our advanced technology ensures complete fidelity in seismic waveform reproduction. Unlike conventional solutions, we accurately replicate even the demanding waveforms of the Great East Japan Earthquake, with 100% precision across displacement, velocity, and acceleration.
2011
Tohoku Region Pacific Offshore Earthquake
1995
Hyogo-ken Nanbu Earthquake (Kobe Marine Observatory)
2004
Niigata-ken Chuetsu Earthquake
Others
- Kushiro-Oki (1993)
- El Centro (1940)
- Taft (1952)
- Noto Peninsula (2024)
Reproducible Artificial Seismic Waves
| Seismic Wave Name for Earthquake Resistance Testing | Primary Applications (Seismic Testing, Seismic Conditions) |
|---|---|
| NTT Artificial Seismic Waves (December 1998 Edition) | NTT building standard seismic test for communication equipment |
| NTT Docomo Artificial Seismic Waves (March 2018 Edition) | Seismic test for communication equipment in NTT Docomo buildings |
| NEBS（GR-63-CORE zone4） Issue 4, April 2012 | Seismic Testing of Network Equipment |
| EN300019-2-3 Chapter4.2 | European Telecommunication Standards Earthquake-Resistant Conditions For INDOOR Use |
| EN300019-2-4 Chapter4.2 | EEuropean Telecommunication Standards, outdoor seismic conditions |
| IEC61587-2 | Seismic test for racks, etc. |
Examples Applications
Electronics Manufacturer:
Conducted seismic performance evaluation of communication control equipment per IEC standards.
Automotive Manufacturer:
Investigated and improved cargo racks for overseas parts transport by simulating actual transport vibrations.
Transport Equipment Manufacturer:
Demonstrated equipment strength by replicating vehicle operation vibrations.
Seismic experiment videos reproducing actual seismic waves from the Great East Japan Earthquake, Hanshin-Awaji Earthquake, and Niigata Chuetsu Earthquake are available.
Video of seismic resistance testing is available here.