Inverted pendulum mass damper device

Abstract

An inverted pendulum mass damper device for reducing the oscillations of boats and ships (1) is disclosed. It comprises an inverted pendulum structure (2) which includes a bundle of elongated elements (3), and a damper system. The bundle of elongated elements (3) adds bending flexibility to the inverted pendulum structure (2) enabling the inverted pendulum structure (2) also to function as a spring system which allows simpler, more compact, and more affordable configurations. The bundle of elongated elements (3) may include a high strength steel strand. The damper system may include a damper (4) and a flexible link (5), e.g. a belt, which connects the damper (4) to the boat or ship (1). The damper system may alternatively include a base damper (7) which damps the horizontal movement of the inverted pendulum structure (2) close to its base.