Modeling and simulation of ultrasonic motor driving jet-pipe servo valve system

Nie, Lingcong; Yao, Xin; Li, Qing

doi:10.1109/asc-icsc.2008.4675447

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Many kinds of pneumatic control devices have been researched [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Especially, piezoelectric (PZT) actuators are widely used [14][15][16][17][18][19][20][21][22][24][25][26][27][28] because some of these actuators have high response and large power. Because the strokes of PZT actuators are very small and must be increased, some researches use laminated PZTs [17][18][19], bimorph structure [16], motors [20,21,24], or displacement amplifier mechanisms [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

“…Especially, piezoelectric (PZT) actuators are widely used [14][15][16][17][18][19][20][21][22][24][25][26][27][28] because some of these actuators have high response and large power. Because the strokes of PZT actuators are very small and must be increased, some researches use laminated PZTs [17][18][19], bimorph structure [16], motors [20,21,24], or displacement amplifier mechanisms [25][26][27][28]. Especially for proportional or servo valves, since the stroke of the actuated part is critical, displacement amplifier mechanisms are used.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of orifice position in particle-excitation valve for proportional flow control

et al. 2017

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This paper reports an improvement of the particle-excitation flow control valve. The valve that we have designed in previous reports can control air flow, using particle excitation by piezoelectric resonance, and has the following advantages: small size, lightweight, high response and continuous airflow control. However, in our previous models, the relationship between the driving voltage and the flow quantity was nonlinear. In this report, we improved the valve to realize proportional flow control. The valve consists of the orifice plate, that has some orifices, and steel particles to seal the orifices and piezoelectric transducer. It controls air flow by the voltage applied to the transducer. For proportional flow control, it is important to adjust the orifice position adequately. In this report, we optimized the orifice position, considering resonance condition of the valve. We designed the experimental prototype using a boltclamped Langevin type transducer and decided orifice position. And we evaluated its vibration properties and flowrate characteristics. The experimental results showed that our designed prototype can proportionally control airflow.

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