Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Displacement amplification type damper
The invention discloses a displacement amplification type damper. According to the displacement amplification type damper, buckling restrained SMA rods and rigid rods are connected through a large gear and a small gear, the large gear is engaged with the rigid rods welded with racks, the small gear is engaged with the rigid rods welded with the racks, and the displacement amplification coefficientis controlled through the design that the radiuses of the large gear and the small gear are different. A set of concentric circle gears are fixed into a steel plate through a steel shaft, the large gear is tightly engaged with the rack welded to a lower rigid rod, the buckling restrained SMA rods are fixed into the steel plate through high-strength nuts, and a section of rack is welded to the rigid rod between the two buckling restrained SMA rods and is tightly engaged with the small gear. The energy dissipation capacity of the damper mainly comes from deformation energy dissipation of the SMA rod; meanwhile, the radius ratio of a large damper to a small damper is changed during design, so that displacement amplification is realized; and compared with a common damper, the displacement amplification type damper has good energy dissipation capacity and self-resetting capacity.
本发明公开了位移放大型阻尼器，使用大小齿轮将屈曲约束SMA棒和刚性杆连接，大齿轮与焊有齿条的刚性杆齿合，小齿轮与焊有齿条的刚性杆齿合，通过大小齿轮半径不同的设计，来控制位移放大的系数。一组同心圆齿轮被钢轴固定在钢板里，大齿轮与下部刚性杆上焊接的齿条紧密齿合，屈曲约束SMA棒通过高强螺母固定在钢板里，两个屈曲约束SMA棒中间的刚性杆上焊接一段齿条，与小齿轮紧密齿合。阻尼器的耗能能力主要来自SMA棒的变形耗能。同时，通过设计时改变大小阻尼器的半径比例，从而实现位移的放大。相较于普通的阻尼器，该阻尼器具有很好的耗能能力和自复位能力。
Displacement amplification type damper
The invention discloses a displacement amplification type damper. According to the displacement amplification type damper, buckling restrained SMA rods and rigid rods are connected through a large gear and a small gear, the large gear is engaged with the rigid rods welded with racks, the small gear is engaged with the rigid rods welded with the racks, and the displacement amplification coefficientis controlled through the design that the radiuses of the large gear and the small gear are different. A set of concentric circle gears are fixed into a steel plate through a steel shaft, the large gear is tightly engaged with the rack welded to a lower rigid rod, the buckling restrained SMA rods are fixed into the steel plate through high-strength nuts, and a section of rack is welded to the rigid rod between the two buckling restrained SMA rods and is tightly engaged with the small gear. The energy dissipation capacity of the damper mainly comes from deformation energy dissipation of the SMA rod; meanwhile, the radius ratio of a large damper to a small damper is changed during design, so that displacement amplification is realized; and compared with a common damper, the displacement amplification type damper has good energy dissipation capacity and self-resetting capacity.
本发明公开了位移放大型阻尼器，使用大小齿轮将屈曲约束SMA棒和刚性杆连接，大齿轮与焊有齿条的刚性杆齿合，小齿轮与焊有齿条的刚性杆齿合，通过大小齿轮半径不同的设计，来控制位移放大的系数。一组同心圆齿轮被钢轴固定在钢板里，大齿轮与下部刚性杆上焊接的齿条紧密齿合，屈曲约束SMA棒通过高强螺母固定在钢板里，两个屈曲约束SMA棒中间的刚性杆上焊接一段齿条，与小齿轮紧密齿合。阻尼器的耗能能力主要来自SMA棒的变形耗能。同时，通过设计时改变大小阻尼器的半径比例，从而实现位移的放大。相较于普通的阻尼器，该阻尼器具有很好的耗能能力和自复位能力。
Displacement amplification type damper
位移放大型阻尼器
QIU CANXING (Autor:in) / QIAN HUIJUAN (Autor:in) / DU XIULI (Autor:in)
09.03.2021
Patent
Elektronische Ressource
Chinesisch
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