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Displacement amplification type self-resetting SMA-viscoelasticity composite vibration reduction device and displacement amplification type self-resetting SMA-viscoelasticity composite vibration reduction method
The invention discloses a displacement amplification type self-resetting SMA-viscoelasticity composite damping device and method. The displacement amplification type self-resetting SMA-viscoelasticity composite damping device comprises an upper composite steel plate, a lower composite steel plate, a displacement amplification gear set and an SMA self-resetting composite device. The upper clad steel plate and the lower clad steel plate are mutually inserted and can move along the axial direction, and a viscous-elastic material cushion layer is filled between the side walls of the upper clad steel plate and the lower clad steel plate; when the device is subjected to small vibration, the viscous-elastic material cushion layer is subjected to shear deformation to absorb and consume vibration energy, and meanwhile, the SMA bars and the SMA wires are subjected to tension deformation to provide self-resetting capacity for the device; when vibration is large, the viscous-elastic material cushion layer is subjected to shear deformation to consume energy, the SMA material is subjected to elongation deformation under large-amplitude displacement, and the self-resetting capacity is provided for the device while the SMA material and the viscous-elastic material block consume energy together; the composite vibration reduction device consumes ground vibration energy, meanwhile, large toughness is provided for the structure, the number of times of vibration resistance of the structure is increased, the vibration resistance service life of the structure is prolonged, and development of a tough city is promoted.
本发明公开了一种位移放大式自复位SMA‑粘弹性复合减振装置及方法，包括上复合钢板、下复合钢板、位移放大齿轮组和SMA自复位复合装置；上复合钢板与下复合钢板相互插合并能够沿轴向位移，上复合钢板与下复合钢板的侧壁之间填充有粘弹性材料垫层；在装置受到小振时，粘弹性材料垫层发生剪切变形吸收消耗振动能量，同时SMA棒材和SMA丝材受拉变形为装置提供了自复位能力；在振动较大时，粘弹性材料垫层发生剪切变形消耗能量，SMA材料在大幅度位移下发生伸长变形，与粘弹性材料块共同耗能的同时，给装置提供自复位能力；该复合减振装置在消耗地振能量的同时，为结构提供了较大的“韧性”，有助于提升结构的抗振次数和抗振寿命，推动“韧性”城市的发展。
Displacement amplification type self-resetting SMA-viscoelasticity composite vibration reduction device and displacement amplification type self-resetting SMA-viscoelasticity composite vibration reduction method
The invention discloses a displacement amplification type self-resetting SMA-viscoelasticity composite damping device and method. The displacement amplification type self-resetting SMA-viscoelasticity composite damping device comprises an upper composite steel plate, a lower composite steel plate, a displacement amplification gear set and an SMA self-resetting composite device. The upper clad steel plate and the lower clad steel plate are mutually inserted and can move along the axial direction, and a viscous-elastic material cushion layer is filled between the side walls of the upper clad steel plate and the lower clad steel plate; when the device is subjected to small vibration, the viscous-elastic material cushion layer is subjected to shear deformation to absorb and consume vibration energy, and meanwhile, the SMA bars and the SMA wires are subjected to tension deformation to provide self-resetting capacity for the device; when vibration is large, the viscous-elastic material cushion layer is subjected to shear deformation to consume energy, the SMA material is subjected to elongation deformation under large-amplitude displacement, and the self-resetting capacity is provided for the device while the SMA material and the viscous-elastic material block consume energy together; the composite vibration reduction device consumes ground vibration energy, meanwhile, large toughness is provided for the structure, the number of times of vibration resistance of the structure is increased, the vibration resistance service life of the structure is prolonged, and development of a tough city is promoted.
本发明公开了一种位移放大式自复位SMA‑粘弹性复合减振装置及方法，包括上复合钢板、下复合钢板、位移放大齿轮组和SMA自复位复合装置；上复合钢板与下复合钢板相互插合并能够沿轴向位移，上复合钢板与下复合钢板的侧壁之间填充有粘弹性材料垫层；在装置受到小振时，粘弹性材料垫层发生剪切变形吸收消耗振动能量，同时SMA棒材和SMA丝材受拉变形为装置提供了自复位能力；在振动较大时，粘弹性材料垫层发生剪切变形消耗能量，SMA材料在大幅度位移下发生伸长变形，与粘弹性材料块共同耗能的同时，给装置提供自复位能力；该复合减振装置在消耗地振能量的同时，为结构提供了较大的“韧性”，有助于提升结构的抗振次数和抗振寿命，推动“韧性”城市的发展。
Displacement amplification type self-resetting SMA-viscoelasticity composite vibration reduction device and displacement amplification type self-resetting SMA-viscoelasticity composite vibration reduction method
一种位移放大式自复位SMA-粘弹性复合减振装置及方法
DONG YAORONG (author) / GAO WANG (author) / ZHU LIHUA (author) / XU ZHAODONG (author) / CHEN FENG (author)
2023-05-12
Patent
Electronic Resource
Chinese
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