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

  • Creating a competitive suspension platform with a 6 DOF force cancellation functionality in a compact build-in volume

Results

  • Vibration isolation system with unique high modal damping of >20% at 5Hz

  • Ability to accelerate stage up to 9.5 m/s² without visible movements of the granite base

  • Use of commercial actuators resulting in a cost-efficient design

  • Smart mechanical decoupling of actuation directions resulting in easy build-in of AVI-mount in existing platforms

  • Patented design

Key Competences

  • System design

  • Dynamics and vibration control

  • Mechanical design (for stiffness and DOF)

  • Control

Cooperation

  • Bosch Rexroth

  • VHE

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