Piezoelectric semi-active vibration control device based on synchronous switch damping technology
A technology of synchronous switching and vibration control, which is applied in the direction of non-electric variable control, mechanical oscillation control, control/regulation system, etc., can solve the problems of low reusability of devices, poor circuit storability, and poor circuit stability, etc., to improve Reusability, convenient and stable connection, and the effect of improving the stability of the circuit
Active Publication Date: 2013-04-03
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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[0003] In previous studies, in order to use the above four semi-active vibration control technologies to realize the vibration control of the structure, it is necessary to temporarily build an analog circuit. The stability of the circuit is poor, and there is no standard interface for connection with external devices such as computers, and the operation is more complicated. And for switching between different control technologies, electronic components need to be replaced on a large scale, and the reusability of the devices is low; in addition, the temporary built circuits have poor storability
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[0031] In order to further illustrate the technical means and effects adopted by the present invention to achieve the intended invention purpose, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0032] Such as figure 1 As shown, the piezoelectric semi-active vibration control device with synchronous switch damping technology consists of a power module, a circuit module and a control panel. The power module converts 220V AC into ±45V and ±12V DC to supply power to the circuit module. The circuit module includes a switch circuit unit, a voltage source unit, an inductance unit, and a negative capacitance unit. The switch circuit unit includes first, second, third, fifth, and sixth interfaces. The first interface is connected to an external computer for receiving external The switch signal sent by the computer, the second interface is connected to the external piezoelectric element, used...
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The invention discloses a piezoelectric semi-active vibration control device based on synchronous switch damping technology. The device comprises a power source module, a circuit module and a control panel, wherein the circuit module comprises a switch circuit unit, a voltage source unit, an inductance unit and a negative capacitor unit. The device provided by the invention is connected with a computer, a piezoelectric element adhered on a to-be-controlled structure and the like devices through an interface on the control panel so as to form a semi-active vibration control system based on non-linear synchronous switch damping; therefore, the short-circuit synchronous damping technology SSDS, the inductance synchronous damping technology SSDI, the voltage synchronous switch damping technology SSDV, the negative capacitor synchronous switch damping technology SSDNC and the like vibration control technology can be well realized.
Description
technical field [0001] The invention relates to a structural vibration control device, in particular to a piezoelectric semi-active vibration control device with multi-method integration synchronous switch damping technology. Background technique [0002] Piezoelectric semi-active control method is a new vibration control method developed based on piezoelectric active and passive control technology, and is currently being widely studied. A representative one is a semi-active vibration control method based on nonlinear synchronous switch damping technology. This method is also called SSD technology (SSD: Synchronized Switch Damping). Some simple electronic components such as series inductors and switches are connected in the circuit. The element causes the electric energy on the piezoelectric element to be quickly consumed or the voltage to be reversed, so as to achieve the purpose of vibration reduction. Piezoelectric active control has a good control effect, but its system...
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IPC IPC(8): G05D19/02
Inventor 季宏丽裘进浩吴义鹏张锦
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS