Rolls-royce Corporation

Ramesh Rajasekaran

Fabrizio Scarpa

Kenneth E Evans

Marc-Antoine Boucher

Christopher W Smith

Wayne Miller

Chrisopher W Smith

Kenneth Evans

Christopher Smith

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.

Vibration damping

A vibration damping body including an auxetic cellular structure having cell walls therein formed substantially of a first material having a first stiffness, the cellular structure further including a second material attached to said cell walls, the second material being selectively located throughout the cellular structure so as to include less than 50% by mass thereof and having a second stiffness which is lower than said first stiffness.

Vibration damping structures

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Derby, United Kingdom

Ramesh Rajasekaran