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壓電共振型隔膜氣泵設(shè)計(jì)
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國家自然科學(xué)基金資助項(xiàng)目（51175213,、50977037）和常州市自然科學(xué)基金資助項(xiàng)目（CJ20115014）


Design of Piezoelectric Resonant Diaphragm Air Pump
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    摘要:

    提出了一種利用系統(tǒng)共振原理的壓電共振型隔膜氣泵。分析了共振泵的工作原理，建立了共振泵的動(dòng)力學(xué)模型，通過計(jì)算獲得影響共振泵輸出流量的主要因素。設(shè)計(jì)了共振泵樣機(jī)，使用激光測微儀測得隔膜片的放大位移約是同一支撐條件下的壓電振子位移的5.3倍,設(shè)計(jì)了測量共振泵輸出流量的實(shí)驗(yàn)裝置。通過實(shí)驗(yàn)測試得到在不同的振動(dòng)彈簧剛度,、調(diào)整彈簧片剛度和隔膜片剛度下輸出流量及其相應(yīng)的變化規(guī)律。實(shí)驗(yàn)測試表明：在輸入電壓為150 V,、振動(dòng)彈簧片厚度為0.6 mm,、調(diào)整彈簧片厚度為1.4 mm、剛性傳振活塞與隔膜片半徑比為0.5和共振頻率為230 Hz時(shí),，輸出流量可以達(dá)到1650 mL/min,。

    Abstract:

    A kind of piezoelectric resonant diaphragm air pump was proposed, which is based on the system resonant principle. Firstly, the working principle of the piezoelectric resonant diaphragm air pump was analyzed and a dynamic model of the pump resonance was established. The main factors of the output flow rate can be obtained. Then a prototype was designed. The testing facility was developed to measure the volume of the resonance pump. Finally, the variation of output flow rate on different vibrating spring rate, adjusting spring rate and diaphragm rate were obtained by experiment test. Experimental results indicated that the maximum flow rate was 1650 mL/min when he sinusoidal AC driving voltage was 150 V, the vibrating spring thickness was 0.6 mm, the adjusting spring thickness was 1.4 mm, and the radius ratio of the rigidity transfer vibration piston and the diaphragm was 0.5. And the amplification factor of the piezoelectric vibrator was 5.3 by using the proposed photovoltaic displacement sensor. 

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謝海峰,接勐,康曉濤,楊志剛,王龍.壓電共振型隔膜氣泵設(shè)計(jì)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(12):246-250. Xie Haifeng, Jie Meng, Kang Xiaotao, Yang Zhigang, Wang Long. Design of Piezoelectric Resonant Diaphragm Air Pump[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(12):246-250.

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  • 在線發(fā)布日期: 2012-12-13
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