【摘要】 将SMA(Shape Memory Alloy, 形状记忆合金)丝作为桅杆结构的纤绳或纤绳的一部分,把它和PSD光电位置传感器、数据采集板、计算机、恒流源组成控制系统,以对桅杆的振动进行控制。对桅杆结构的振动控制试验表明,处于超弹性状态的SMA纤绳,可以成为性能优异的主动阻尼器,并有效地使结构振动得到抑制。更多还原

【Abstract】 Shape Memory Alloy (SMA) wires are used as a guyed mast抯 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.更多还原