Client: Acoustic laboratory project
Floating Floor Vibration Isolation
Spring isolators set onto a steel reinforcement grid to build a floating floor for an anechoic chamber, cutting off low frequency vibration from the ground.
Project Highlights
- Steel grid with spring isolators
- Load and stiffness calculated at each point
- Decouples low frequency vibration
Low frequency vibration is a hidden source of interference for an anechoic chamber and for precise measurement. To deal with it we build a floating floor between the foundation and the room floor: first a steel reinforcement grid is set up, then spring isolators are installed at calculated positions, which decouples the whole room floor from the building structure in terms of vibration.
In this photo the engineers are installing and leveling the isolation units point by point, and the load and stiffness at every support are worked out in advance to reach the target isolation frequency. This step is the foundation of a chamber’s noise floor and measurement accuracy.
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