Automatic Restoration and Self-Healing Damper System Utilizing Smart Material

摘要

Disclosed is a damper system. According to the present invention, the damper system comprises: a guide unit having a predetermined length in accordance with a virtual load application line parallel to a direction in which tensile or compressive force is applied; a first moving unit coupled to one side of the guide unit and reciprocating in parallel to the load application line; a second moving unit spaced from the first moving unit, coupled to one side of the guide unit and reciprocating in parallel to the load application line; a deformation unit made of shape memory alloy to connect the first and second moving units and extended or restored in a direction perpendicular to the load application line; an operation unit pulling the second moving unit to allow the second moving unit to be distant from the first moving unit and pushing the first moving unit to allow the first moving unit to be distant from the second moving unit; a first elastic body made of a polyurethane elastic body and compressed and deformed when the operation unit pushes the first moving unit; and a second elastic body made of a polyurethane elastic body and compressed and deformed when the operation unit pulls the second moving unit, wherein the deformation unit is extended when the first and second moving units are separated. Accordingly, when each of tensile and compressive forces is applied to both ends of a damper device, the deformation unit is extended, such that deformation of the deformation unit is easily predicted, thereby facilitating design of a damper device for shock absorption and vibration and deformation control and providing a damper device of a stable structure. Super-elastic shape memory alloy and self-healing thermoplastic polyurethane are included, thereby providing a damper device capable of maximizing shock absorption and restoration effects.