Lord Corporation

Martin Bieber

Stefan Barbulescu

Mark Norris

Systems, devices, and methods for active vibration control using circular force generators. In one aspect, a vehicle includes a vehicle frame, a cabin, an engine, and a number of vibration control devices mounted on the vehicle frame. Each vibration device includes a circular force generator comprising at least one mass and at least one motor configured to rotate the mass. The vibration control devices are configured to perform active vibration control to reduce noise and/or vibration within the cabin resulting from the engine deactivating a subset of cylinders in operation.

Active vibration control using circular force generators

Circular force generator devices (), systems, and methods for damping vibrations which include two complementary rotor assemblies () that are rotatable together about a common shaft () but that have an adjustable rotational position (P, P) with respect to one another such that a significant reduction in rotor inertia and bearing drag relative to conventional CFG configurations is provided. The present architecture creates virtually zero rotating moment.

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Oak Island, NC, United States of America

Martin Bieber