Based on experience in calculation, meaningful and correct tests should be defined and carried out.
Our main field of activity is in the field of dynamic component testing. A modern four-poster system with very good dynamics is at your disposal. Furthermore, we use a 4-D component test bench as well as a HEXAPOD under climate to ensure the best possible implementation.
The flexible test bench, which is used on a hydraulic shaker or stamp system and is patent-pending, enables realistic tests to be carried out on components in the overall car system.
Our invention is used to investigate the interaction of a body and a component to be tested, such as doors, flaps, HV storage, and front end and rear end.
It all started with the FSB Type 1, which was developed exclusively for convertible roof systems. With the continued use of the basic modular concept, Type 2 made it possible to depict limousines, station wagons, and SUVs. With the FSB Type 3 for off-road vehicles with a ladder frame, the replacement vehicles became more and more realistic in terms of the position of the support structure. The tuning options for the static and dynamic properties are also more diverse. Types 4 and 5 represent the latest generations of battery-powered vehicles and those with combustion engines. Type 6 was specially developed for electric trucks.
Explanation of the fundamental idea using the Cabrio FSB Type 1
The development of the body and development of the roof system are usually happening independently of each other. Due to that, suppliers and OEMs (vehicle manufacturers) often mainly focus on their own system. This causes a lack of concentration on the connection area of both opponents often leading to deficiencies in the BIW-roof connection
Body supplied by the manufacturer (OEM)
Roof supplied by subcontractor
Moreover, mostly the dynamic design takes place in a rigid environment (“rigid block” or body cutouts), which leads to a falsification of the results. Natural-frequencies against rigid constrains are usually in the range of 20-30 Hz and normally they collapse with global modes, which lay much deeper. Due to that, different data has a different output despite doing the same stimulation on the component (e.g. by measuring the roof – main bearing).
Convertibles as well as all other vehicle types (sedans, station wagons, etc.) can be tested with the FSB2 test bench. However, this is more complex than the FSB1, since not only the natural frequency can be set accordingly, but also the individual deflection shape of the car.
Substitute vehicle for off-road vehicles with a ladder frame and cell mounted on rubber elements
Substitute vehicle for electic trucks.
Images are follwing…
Shaker frames for component testing.
Workshop with a lathe, milling machine (conventional and CNC), drill press, hacksaw, welder, etc.
Complete vehicle tests can be carried out with a total weight of up to 6 tons, a maximum height of 2.50 meters and a wheelbase of 1.80-3.80 meters. We can also support you in the area of component testing (sunroof, doors, durability,…), as well as in modal analysis on the entire vehicle and components.
Endurance runs to determine the service life of components:
e.g. roofs, holders, complete vehicles.
Force-controlled testing of convertible top component (using a force sensor)
OMA and IMA for the entire vehicle and components
INOVA EU 3000
Mobile measuring systems from LMS + IMC
Dytran 5850B Impulse Hammer
Calibration of test objects.
The flexible test bench, which is used on a hydraulic shaker or stamp system and is patent-pending, enables realistic tests to be carried out on components in the overall car system. Our invention is used to investigate the interaction of a body and a component to be tested, such as doors, flaps, HV storage, and front end and rear end.
Ersatzfahrzeug für elektrisierte LKW’s.
85757 Karlsfeld, Germany
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