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Hitachi

Research & development support systems

Our unique mechanisms improve testing accuracy, which contributes to energy efficiency and accurate reproduction of phenomena.

Three-dimensional six-degree-of-freedom shaking table

Independent vibrations in the 2 horizontal directions, the vertical direction, and rotations around the 3 axes and their 6 degrees of freedom can be all combined as coupled vibrations, and sufficient data can be measured for destructive tests, which cannot be repeated.

Image: Illustration of a three-dimensional six-degree-of-freedom shaking table

Vibration control technology for destructive tests

  1. The reaction from the test specimen is measured, and reflected to the control in real time
  2. A real-time response filter is used to track the changes of characteristics in real time in vibration table including the test piece.

Image: Outline diagram of vibration control technology for damage tests

Deep underground development support system ( dynamic geotechnical centrifuge)

This is a vibration table for carrying out vibration tests for civil engineering, by rotating the arm to apply N times the gravity force to a 1/N scale model by centrifugal force. It is used for scale model testing of the ground.

Image: Deep underground development support system (dynamic centrifugal load testing device)