Dynamic analysis on test benches

Technologies such as optical metrology enable the automotive industry to use superlative precision methods to ensure the strength and comfort of vehicles. A vital point that we drivers are often unaware of.
Centers with the ability to perform dynamic analysis on test benchesare the ones that allow these qualities to be guaranteed.

One of the pioneering centers for this type of technology is the Vehicle Test Center of the Technical University of Dresden, Germany. It is the only center in Europe with a complete vehicle test bench outside the automotive industry for testing vehicles and individual parts under static and dynamic loads.

As we said at the beginning, centers with the ability to perform dynamic analysis on test benches are the ones that can guarantee the endurance and comfort of vehicles. TU Dresden uses ARAMIS to capture the entire vehicle as it interacts with components, chassis, axles and tires.

The 3D optical measurement system features fast, time-phased and non-contact analysis, allowing for flexible use. Users at this facility were impressed by its high measurement accuracy and its suitability for static and dynamic testing, both on the test stand and on the test track where the system will be used.

The ARAMIS SRX dual sensor scans, simultaneously with the other measurement channels, the entire vehicle chassis, its wheels and both sides in the vehicle coordinate system according to DIN 70000. In contrast to traditional displacement sensors (LVDT), measurements with non-contact ARAMIS sensors generate 3D point clouds that enable analysis in all six degrees of freedom (6DoF).

A clear application example is the calculation of all angular positions of a wheel. During axle measurements at the TU Dresden Test Center, ARAMIS is mainly used to measure the geometric position of the wheels in relation to the body and the road, a factor with an impact on chassis properties, directional stability, tire adhesion and wear.

Translational and rotational movements in space (wheel position during compression and rebound, changes in inclination, trajectory, etc.) are important for such measurements. The system offers another major advantage for engineers: the measurement results can be processed directly in the next process step.

ARAMIS provides 3D analysis whenever precise measurements of material properties and component behavior under load are required. In addition, they enable non-contact 3D deformation and motion analysis for all materials down to the sub-micrometer range.
They are therefore the ideal choice for engineering, materials research and component testing.

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