Patent ID: 11965580
Assignee: PETRÓLEO BRASILEIRO S.A.—PETROBRAS
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 4:
5. A method to control radial vibrations in pipes, the method comprising:
receiving a radial vibration, within a specified frequency range, of a pipe by the viscoelastic neutralizer of claim 1;
transferring the radial vibrations to the mass by the housing supports, housing, shaft supports, and shaft;
vibrating the mass, responsive to the transferred vibrations, in a corresponding radial direction of movement;
generating shear deformations predominant in the viscoelastic pieces responsive to vibrating the mass; and
dissipating and redistributing at least part of the radial vibration of the pipe in response to the shear deformation.