SMA piezoelectric friction intelligent mixed damper
A hybrid damping and damper technology, which is applied to building components, earthquake resistance, etc., can solve the problems of complex control system, poor control effect, and inability to adjust the control force in real time, and achieve the effect of large output energy and small input energy
Inactive Publication Date: 2015-12-30
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
View PDF6 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] Although the control effect of the semi-active control device made of piezoelectric ceramics is good, the control system is complicated and the price is high; although the passive control damper made of SMA wire is easy to install and low in cost, it cannot adjust the control force in real time. , its control effect is poor
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
[0026] Such as figure 1 and figure 2 As shown, a SMA piezoelectric friction intelligent hybrid damper includes a damper box 8, a piezoelectric ceramic driver box 6 with a piezoelectric ceramic driver 4 in the damper box 8, and a piezoelectric ceramic driver box 6 A left baffle 3 is set on the left side of the left side, and a right baffle 7 is set on the right side. It is characterized in that a plurality of SMA wires are arranged between the right side wall of the piezoelectric ceramic driver box 6 and the right side wall of the damper box 8. 11, a plurality of SMA wires 220 are arranged between the left side wall of the piezoelectric ceramic driver box 6 and the left side wall of the damper box 8, and after the SMA wire 11 passes through the right baffle plate 7, one end is fixed on the On the right side wall of the piezoelectric ceramic dr...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to an SMA piezoelectric friction intelligent mixed damper, and belongs to the field of energy consumption and seismic mitigation of civil engineering structures. The intelligent mixed damper comprises a damper box, a piezoelectric ceramic driver box with a piezoelectric ceramic driver is arranged in the damper box, a left baffle is arranged at the left side of the piezoelectric ceramic driver box, a right baffle is arranged at the right side of the piezoelectric ceramic driver box, and multiple SMA filaments are arranged between the right side wall of the piezoelectric ceramic driver box and the side wall of the damper box as well as between the left baffle and the right baffle; an actuating rod sequentially penetrates through the left side wall of the damper box, the left baffle and the left side wall of the piezoelectric ceramic driver box and then is fixed to the left end of a sleeve in the piezoelectric ceramic driver box, the left end of a connecting rod is inserted from the right end of the sleeve, and the right end of the connecting rod is fixed to the right baffle. The intelligent mixed damper is convenient to machine, high in energy consumption capacity and capable of combining semi-active control and with passive control to be applied to the field of energy dissipation and seismic mitigation more efficiently and has self-resetting capacity.
Description
technical field [0001] The invention belongs to the technical field of shock absorption of civil engineering structures, in particular to an SMA piezoelectric friction intelligent hybrid damper. Background technique [0002] Earthquakes have always been considered as the four natural enemies faced by human beings together with floods, hurricanes and plagues. Houses collapsed, landslides and ground fissures caused serious harm to people's lives and properties. For example, the 1976 Tangshan Earthquake in China with a death toll of 240,000, the 8.6-magnitude earthquake in northern Sumatra, Indonesia in 2005, and the 8.0-magnitude Wenchuan Earthquake in China in 2008. Therefore, how to effectively reduce the impact of earthquakes on structures is one of the major problems in the field of structural vibration control in civil engineering. [0003] Shape memory alloy (SMA) is a widely used intelligent material. It can provide a full hysteretic curve and no residual deformation ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): E04B1/98
Inventor 展猛王社良杨涛李通赵云黄鑫
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY