A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-resetting piezoelectric friction damper
The invention belongs to the technical field of civil engineering structure vibration response control and earthquake resistance and hazard mitigation and relates to a self-resetting piezoelectric friction damper. The self-resetting piezoelectric friction damper comprises a left baffle, a right baffle, an auxiliary plate, an outer friction plate, a movable main plate, an inner friction plate, an annular piezoelectric ceramic driver, a spring and an actuating rod. The friction force between the movable main plate and the inner friction plate and the friction force between the movable main plateand the outer friction plate are adjusted through axial extending and contracting adjustment of the annular piezoelectric ceramic driver; self-resetting of the structure is achieved through the spring 16, and residual deformation of the structure after the earthquake is reduced. The self-resetting piezoelectric friction damper is simple in structure, low in manufacturing cost and convenient to machine; the passive control of a traditional friction damper is changed to be adaptive control, the working voltage of the piezoelectric ceramic driver 8 can be adjusted in real time according to the response of the building structure, the axial deformation amount of the piezoelectric ceramic is changed, the positive pressure of the friction plates and the movable main plate 4 is changed, and therefore the friction force is changed; and the damping effect is stable, and the effect of intelligent control is achieved.
本发明一种自复位压电摩擦阻尼器，属于土木工程结构振动响应控制、抗震减灾技术领域；包括左侧挡板、右侧挡板、副板、外摩擦板、活动主板、内摩擦板、环形压电陶瓷驱动器、弹簧和作动杆；通过环形压电陶瓷驱动器的轴向伸缩调整所述活动主板与内摩擦板、外摩擦板之间的摩擦力；通过弹簧16来实现结构的自复位，减少结构在震后的残余变形。其构造简单，造价低廉，加工方便。本发明改变传统摩擦阻尼器被动控制为自适应控制，能够根据建筑结构的响应实时调整压电陶瓷驱动器8的工作电压，改变压电陶瓷轴向变形量，导致摩擦板和活动主板4正压力发生变化，从而改变摩擦力的大小。减震效果稳定，达到了智能控制的效果。
Self-resetting piezoelectric friction damper
The invention belongs to the technical field of civil engineering structure vibration response control and earthquake resistance and hazard mitigation and relates to a self-resetting piezoelectric friction damper. The self-resetting piezoelectric friction damper comprises a left baffle, a right baffle, an auxiliary plate, an outer friction plate, a movable main plate, an inner friction plate, an annular piezoelectric ceramic driver, a spring and an actuating rod. The friction force between the movable main plate and the inner friction plate and the friction force between the movable main plateand the outer friction plate are adjusted through axial extending and contracting adjustment of the annular piezoelectric ceramic driver; self-resetting of the structure is achieved through the spring 16, and residual deformation of the structure after the earthquake is reduced. The self-resetting piezoelectric friction damper is simple in structure, low in manufacturing cost and convenient to machine; the passive control of a traditional friction damper is changed to be adaptive control, the working voltage of the piezoelectric ceramic driver 8 can be adjusted in real time according to the response of the building structure, the axial deformation amount of the piezoelectric ceramic is changed, the positive pressure of the friction plates and the movable main plate 4 is changed, and therefore the friction force is changed; and the damping effect is stable, and the effect of intelligent control is achieved.
本发明一种自复位压电摩擦阻尼器，属于土木工程结构振动响应控制、抗震减灾技术领域；包括左侧挡板、右侧挡板、副板、外摩擦板、活动主板、内摩擦板、环形压电陶瓷驱动器、弹簧和作动杆；通过环形压电陶瓷驱动器的轴向伸缩调整所述活动主板与内摩擦板、外摩擦板之间的摩擦力；通过弹簧16来实现结构的自复位，减少结构在震后的残余变形。其构造简单，造价低廉，加工方便。本发明改变传统摩擦阻尼器被动控制为自适应控制，能够根据建筑结构的响应实时调整压电陶瓷驱动器8的工作电压，改变压电陶瓷轴向变形量，导致摩擦板和活动主板4正压力发生变化，从而改变摩擦力的大小。减震效果稳定，达到了智能控制的效果。
Self-resetting piezoelectric friction damper
自复位压电摩擦阻尼器
ZHANG XUN'AN (author) / LI KUN (author) / LIU JIANXIONG (author) / XIAO YANJIE (author)
2020-06-09
Patent
Electronic Resource
Chinese