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通过分别制备高性能压电陶瓷FD3-PZT,FD4-PZT和复合电流变液并测量它们的性能之后,研究和制作了由压电陶瓷与电流变液结合的一种新型声学与振动控制系统(在该系统中的压电陶瓷与电流变液之间连接有一高压延迟电路)。当外界施加一个瞬时冲击力作用于该新型声学和振动控制系统中的压电陶瓷上时,压电陶瓷由于压电效应产生瞬时高压(d-ccurrent)输入复合电流变液,电流变液在短时由于其具有的流变性(其电致流变性可逆)而迅速由液态变为固态,从而抵消了外来的瞬时冲击力。该新型声学与振动控制系统在振动控制和声学方面极有应用前景,例如抗(防)次声、声震波和爆炸冲击波的危害以及用于制造高效防弹衣、防护头盔(安全帽)等;在声学方面可制备新型电控激励器、制动器、强振隔离体、无后坐力装备及各种抗震、减振、防噪所需装置等。
After separately preparing high-performance piezoelectric ceramics FD3-PZT, FD4-PZT and composite electrorheological fluid and measuring their performance, a new type of acoustic and vibration control system combined with electrorheological fluid was researched and fabricated A high-voltage delay circuit is connected between the piezoelectric ceramic and the electro-rheological fluid in the system). When a transient impact is applied to the piezoelectric ceramic in the new acoustic and vibration control system, the piezoelectric ceramic produces a transient high voltage (d-ccurrent) input electro-rheological fluid due to the piezoelectric effect, and the electro-rheological fluid is short Due to its rheology (its reversible electrochromic reversible) and quickly changed from liquid to solid state, thus offset the external transient impact force. The new acoustics and vibration control system has great applications in terms of vibration control and acoustics, such as the anti-infrasound, acoustic shock and explosion shock wave, as well as in the manufacture of high-performance bullet-proof vests and helmets Acoustics can be prepared new type of electronic control actuators, brakes, strong vibration isolation body, recoilless equipment and a variety of seismic, vibration reduction, noise control devices.