Transport engineering laboratory
INSIA has facilities for testing vehicles on the track. These facilities have a circular platform for maneuvers and a total paved area of 3,000 square meters. It has specific areas depending on the type of test, such as a bumpy area with speed bumps and an off-road area.
- Straight Length: 170 m
- Circular platform 60 m in diameter
- Total length: 700 m
- Braking tests.
- Dynamic lateral stability tests
- Cornering behaviour
- Suspension behaviour
- Large vehicles maneuverability
- Fields of view
Shock absorber test bench
Through the shock absorber test, the displacement-force curve is determined, based on the values of both variables obtained in the test bench.
From the data recorded in the test, the velocity-force curve is obtained. The slope of this curve defines the damping ratio. The damping values thus obtained are used in the reconstruction of the accident.
The test procedure consists of subjecting the shock absorber to a known displacement according to a sinusoidal external excitation at a certain frequency that forces the shock absorber to complete several traction-compression cycles, recording the corresponding values of displacement and force in a computer. To do this, the bench consists of a load cell that registers the force exerted by the shock absorber and a displacement sensor.