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ACTIVE DAMPING DEVICES PORTFOLIO

ACTIVE DAMPING DEVICES PORTFOLIO
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ADVANTAGES Non intrusive Generating damping within a structure or machine with ADDs is a non-intrusive process. No structural modification is needed. The ADD is just fixed on the apparatus and adds damping. If the control is turned off, the structure just behaves like originally. Once the control is turned on again, the structural behaviour remains the same, but resonances are damped. Additive Process Damping with ADDs is an additive process. In other words, the more ADDs you attach to the structure or machine, the more damping you get. Control Robustness Thanks to the selected configuration of collocated sensor and actuator pair(s), it can be demonstrated that a more robust and stable control scheme can be achieved, and hence that stability is less of an issue. LOW PREVIOUS KNOWLEGDE OF THE STRUCTURE IS REQUIRED As the selected closed-loop damping strategy with DVF is quite universal, the ADD can be applied with no or no deep previous knowledge of the structural behavior of the structure or machine it is attached to. No in-depth preliminary modeling or structural analysis is required before being able to generate damping with ADDs. Active Damping Devices Portfolio_EN-Rev1p1

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Wide operating bandwidth NO EXTERNAL MECHANICAL CONNECTIONS Structure / Machine Being based on an inertial actuator there is no need for and external mechanical link like it would be the case with classical dampers as illustrated in Figure 1. Unlike classical dampers that need a physical reference anchor, the ADD has a virtual reference point; it is “hooked to the sky”. Hence, ADDs can be installed where structural parts connected to the ground are not present or not practicable, or even on moving parts. Active Damping Device Figure 1: Active Damping with an Inertial Actuator...

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• Vibration Problem analysis. • Active damping performance assessment. • Custom actuators and controllers design for perfect integration into customers’ machine or process (mechanical layout and interfaces, environment...). CUSTOMERS NEED COLLABORATIVE OELIfih DEVELOPMENT OF ACTIVE £ PASSIVE SOLUTION pm Prove men? in TraH of: acoustic ■ TECHNICAL -PMOLNITTVITV .COMFORT fLOMQEVFTY EXAMPLES OF EXISTING APPLICATION Here are some existing applications. Unfortunately, we might not give details as most of these are protected by non-disclosure agreements: • Pointing accuracy improvement for...

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