ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

In order to improve the small intelligent components of vibration isolation, vibration reduction and power generation capacity, a kind of liquid piezohydraulic energy harvester was designed, the use of sheet deformation superposition theory under the action of concentrated load was established for the electricity generating capacity of the circular piezoelectric vibrator displacement curve and calculation model. Research results showed that the prisoner can implement the output voltage, which was proportional to the driving voltage in a fixed frequency, output voltage of captive can increase with the increase of system back pressure, power voltage was increased firstly and then decreased, and the best voltage back pressure existed to maximize the voltage, and the best back pressure was affected by the frequency. Mechanical and electrical equivalent model was established, by changing the circuit impedance equivalent analysis, the results were consistent with the theoretical simulation results, the established circuit model can true reflect characteristics of the theoretical model.