US Patent 7416491 Internal absorber for a shaft assembly

An absorber for use within a shaft assembly of a vehicle is disclosed. The absorber includes at least one cantilever device and at least one constrained layer device. Both devices are disposed within a tube. The absorber is capable of being tuned to specific frequencies and capable of controlling the amount of damping within the shaft assembly. Also disclosed is a shaft assembly having a generally tubular shaft. Disposed within the tubular shaft is the absorber having at least one cantilever device and at least one constrained layer device.