GUYED MAST'S VIBRATION CONTROL BASED ON SMA ACTIVE DAMPER

Shape Memory Alloy(SMA)wires are used as a guyed mast's cables or cable segments. A system made up of SMA cables, PSD sensors, a data acquisition board and a permanent current power supplier is used to control the mast抯 vibrations. Vibration control tests show that the SMA cables under super-elastic state can become an excellent active damper and decrease the structure's vibrations effectively.