Design and investigation on a novel piezoelectric screw pump
| Autor: | Fagang Zhao, Chunhua Zhou, Liang Wang, Yongkang Yin, Ye Zilong, Jiamei Jin |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Back pressure Acoustics Maximum flow problem 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Piezoelectricity Atomic and Molecular Physics and Optics Finite element method Power (physics) Screw thread Mechanics of Materials 0103 physical sciences Signal Processing Vibrator (electronic) General Materials Science Electrical and Electronic Engineering 0210 nano-technology Screw pump Civil and Structural Engineering |
| Zdroj: | Smart Materials and Structures. 29:085013 |
| ISSN: | 1361-665X 0964-1726 |
| DOI: | 10.1088/1361-665x/ab98ec |
| Popis: | In order to alleviate the problem of low back pressure of valveless piezoelectric pumps, a novel piezoelectric screw pump was proposed, manufactured and tested. It used the movable cavity formed by screw thread fit to realize liquid transportation. The theoretical model was used to analyze the factors affecting the performance of the piezoelectric screw pump. The geometrical parameters of the piezoelectric vibrator were optimized by the finite element method, and a prototype was made for testing. The test verifies the results calculated by the above analysis. The results showed that under the driving frequency of 13.8 kHz, the maximum back pressure was 6.70 kPa and the maximum flow was 750 μL/min. Moreover, this novel piezoelectric screw pump is simple in structure, and can maintain the state of liquid circuit by self- locking when power is off, and has higher reliability. |
| Databáze: | OpenAIRE |
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