Decoupling mechanism and testing apparatus for large-displacement vibration tests

Abstract

A decoupling mechanism () for large-displacement vibration tests includes a first transfer decoupling assembly (), a rotary amplifying assembly () and a second transfer decoupling assembly (), wherein the first transfer decoupling assembly () includes a first transfer shaft () and a first transfer main body () axially connected to the first transfer shaft (); the second transfer decoupling assembly () includes a second transfer shaft () and a second transfer main body () axially connected to the second transfer shaft (); an extension direction of the axis of the first transfer shaft () is the same as that of the axis of the second transfer shaft (); a first connecting shaft () is arranged between the rotary amplifying assembly () and the first transfer main body (), and a second connecting shaft () is arranged between the rotary amplifying assembly () and the second transfer main body (); and extension directions of the axis of the first connecting shaft () and the axis of the second connecting shaft () are the same and are perpendicular to that of the axis of the first transfer shaft () or the second transfer shaft (). A vibration testing apparatus prepared by combining the decoupling mechanism () with a vibration exciter () and a sliding table assembly () realizes large-displacement vibration of the sliding table assembly.