It is used to reduce the vibration and swing of the crane in the working process and improve the stability and safety of the crane.

TMD damper is installed in tower crane structure. TMD damper is a kind of mass vibration subsystem with adjustable mass, which consists of mass block, spring and damper. Through the coupling effect with the crane structure, the vibration energy of the crane is counteracted by adjusting the mass and position of the mass block, thus reducing the vibration amplitude.