Force cancellation demonstrator
Internal project
A rebuild of the Bosch Rexroth demonstrator was made with the addition of force cancellation, developed to optimize machine performance.
A gantry stage fair demonstrator was developed in cooperation with Bosch Rexroth, see Bosch Gantry demonstrator. MI-Partners has rebuild this stage with a force cancellation add-on. This force cancellation is enclosed in the specially developed AVI-mount active suspension. The forces exerted by the acceleration of the stage are compensated by an active force generated inside these mounts.
Challenges
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Creating a competitive suspension platform with a 6 DOF force cancellation functionality in a compact build-in volume
Results
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Vibration isolation system with unique high modal damping of >20% at 5Hz
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Ability to accelerate stage up to 9.5 m/s² without visible movements of the granite base
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Use of commercial actuators resulting in a cost-efficient design
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Smart mechanical decoupling of actuation directions resulting in easy build-in of AVI-mount in existing platforms
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Patented design
Key Competences
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System design
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Dynamics and vibration control
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Mechanical design (for stiffness and DOF)
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Control
Cooperation
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Bosch Rexroth
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VHE