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SERVO-HYDRAULIC TEST RIGS

In servo-hydraulic test rigs, hydraulically controlled actuators load the specimen with forces, moments, or motion cycles. CFM Schiller has years of experience in development, manufacture, and installation of test rig systems. Our product portfolio comprises - among other things – multi-axial shaker tables, tilting test rigs, and servo-hydraulic test rigs for the automotive industry.

Usage and design of servo-hydraulic test rigs are universal. Applications range from component part and assembly testing in materials science to fatigue testing of large scale components to full-vehicle road simulators in the automotive industry. Simple tests with only one degree of freedom can usually be realized with a single actuator and 1-channel control. Along with simple ones, we offer test rig systems with up to 6 degrees of freedom and a multiple number of actuators for most complex kinematics.

Besides actuators and sensors, key factors for an effective test rig are the infrastructure, periphery, and vibration isolation system.          

Servo-hydraulic tests are oftentimes carried under highly dynamic and high-frequency conditions. The generated forces and vibrations are transmitted to the specimen and the components of the test rig setup. To sustain reaction forces safely and without deformation, all clamping components must have a highly stiff design. Only minimal deflections guarantee correct and reproducible measurements.

The clamping technology from CFM Schiller provides universal options to stiffly adapt servo-hydraulic actuators, specimens, and measuring instruments. This includes the standard products from our modular construction kit MOCOKIT® as well as tailor-made special designs for your application. The connection to the underground is also an essential element of clamping technology. Clamping plates of different types and materials are generally used for this purpose, serving as stable ground with flexible positioning. Anchorage systems provide high-strength connections between the clamping plates and the foundation, allowing high-frequency vibrations to be isolated.

Servo-hydraulic test rig with MOCOKIT® clamping technology

Servo-hydraulic test rig with MOCOKIT® clamping technology

Servo-hydraulic axle test rig with axle fixture system

Servo-hydraulic axle test rig with axle fixture system

Stainless steel clamping plate

Stainless steel clamping plate

Connection of clamping plate to seismic mass in cross-sectional view

Connection of clamping plate to seismic mass in cross-sectional view