Vibration damping

摘要

A vibration damping insert configured to seat within a cell of a cellular structure and to span the cell cavity. The insert comprises a first portion formed of a first material and a second portion formed of a second material having lower stiffness than the first material. The first portion is arranged to constrain deformation of the second portion to be in a predetermined direction. The invention also comprises a vibration damping body comprising a cellular structure formed of a plurality of tessellating cells and a vibration damping insert as described. The vibration damping insert is mounted in at least one of the cells in the cellular structure. The invention also comprises a method of manufacturing a vibration damping body.

主权项

1. A cellular structure, comprising:
a cell comprising a cell cavity defined by a perimeter wall; and a vibration damping insert, comprising:
a first portion formed of a first material comprising a first portion wall distinct from the perimeter wall, the first portion wall defining an insert cavity which is entirely spaced from the perimeter wall; anda second portion formed of a second material having lower stiffness than the first material; wherein all of the second material in the cell is located within the insert cavity and the first portion is arranged to constrain deformation of the second portion to be in a predetermined direction, and wherein the vibration damping insert sits within the cell and spans the cell cavity of the cell.