Dynamic Analysis on Test Benches

Technologies such as optical metrology enable the automotive industry to use methods of the highest precision to ensure the durability and comfort of vehicles. This is a crucial point that we drivers are often unaware of.
Facilities capable of performing dynamic analyses on test benchesare what make it possible to guarantee these qualities.

One of the pioneering centers in this type of technology is the Vehicle Test Center at the Technical University of Dresden in Germany. Its facilities house the only center in Europe outside the automotive industry that has complete vehicle test benches for analyzing vehicles and individual parts under static and dynamic loads.

As we mentioned at the beginning, facilities capable of performing dynamic analyses on test benches are what ensure the durability and comfort of vehicles. TU Dresden uses ARAMIS to capture data on the entire vehicle as it interacts with its components, chassis, axles, and tires.

The 3D optical measurement system offers fast, time-domain, non-contact analysis, allowing for flexible use. Users at this center were impressed by its high measurement accuracy and its suitability for static and dynamic testing, both on the test bench 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 of the vehicle in the vehicle coordinate system in accordance with DIN 70000. Unlike traditional displacement sensors (LVDTs), measurements taken with non-contact ARAMIS sensors generate 3D point clouds that enable analysis in all six degrees of freedom (6DoF).

A clear example of its application is the calculation of all the angular positions of a wheel. During axle measurements at the TU Dresden Test Center, ARAMIS is primarily used to measure the geometric position of the wheels relative to the vehicle body and the road—a factor that affects chassis behavior, directional stability, tire grip, and wear.

Translational and rotational movements in space (wheel position during compression and rebound, changes in camber, 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 step of the process.

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 submicrometer range.
Therefore, they are the ideal choice for engineering, materials research, and component testing.

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