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Research on Pressure-Flow Characteristics of Pilot Stage in Jet Pipe Servo-Valve
Jet pipe servo-valves are widely used in high-precision servo control systems. However, the accuracy of pressure-flow characteristic equations relevant to its pilot stage needs to be improved. In contrast to the traditional analytical approach using the orifice equation, the article investigates the...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9823615/ https://www.ncbi.nlm.nih.gov/pubmed/36616814 http://dx.doi.org/10.3390/s23010216 |
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author | Kang, Shuangqi Kong, Xiangdong Zhang, Jin Du, Ranheng |
author_facet | Kang, Shuangqi Kong, Xiangdong Zhang, Jin Du, Ranheng |
author_sort | Kang, Shuangqi |
collection | PubMed |
description | Jet pipe servo-valves are widely used in high-precision servo control systems. However, the accuracy of pressure-flow characteristic equations relevant to its pilot stage needs to be improved. In contrast to the traditional analytical approach using the orifice equation, the article investigates the pressure and flow characteristics of the pilot stage based on the impact jet principle. Taking the pre-stage of a certain type of jet pipe servo-valve as an example, the flow field is simulated using ANASYS software. By comparing the simulation data with the calculation results, the pressure characteristic model is basically consistent with the simulation data, and the relative error is less than 2.3%. The error between the revised flow characteristic model and the simulation result is small, and the maximum deviation is less than 0.0022 L/min. Finally, to verify the applicability of the model to other specifications, the experimental data in the literature are compared with the theoretical calculation results, the maximum relative error of pressure characteristics is 2.19%, and the relative error of flow characteristics is less than 5.34%. |
format | Online Article Text |
id | pubmed-9823615 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-98236152023-01-08 Research on Pressure-Flow Characteristics of Pilot Stage in Jet Pipe Servo-Valve Kang, Shuangqi Kong, Xiangdong Zhang, Jin Du, Ranheng Sensors (Basel) Article Jet pipe servo-valves are widely used in high-precision servo control systems. However, the accuracy of pressure-flow characteristic equations relevant to its pilot stage needs to be improved. In contrast to the traditional analytical approach using the orifice equation, the article investigates the pressure and flow characteristics of the pilot stage based on the impact jet principle. Taking the pre-stage of a certain type of jet pipe servo-valve as an example, the flow field is simulated using ANASYS software. By comparing the simulation data with the calculation results, the pressure characteristic model is basically consistent with the simulation data, and the relative error is less than 2.3%. The error between the revised flow characteristic model and the simulation result is small, and the maximum deviation is less than 0.0022 L/min. Finally, to verify the applicability of the model to other specifications, the experimental data in the literature are compared with the theoretical calculation results, the maximum relative error of pressure characteristics is 2.19%, and the relative error of flow characteristics is less than 5.34%. MDPI 2022-12-25 /pmc/articles/PMC9823615/ /pubmed/36616814 http://dx.doi.org/10.3390/s23010216 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kang, Shuangqi Kong, Xiangdong Zhang, Jin Du, Ranheng Research on Pressure-Flow Characteristics of Pilot Stage in Jet Pipe Servo-Valve |
title | Research on Pressure-Flow Characteristics of Pilot Stage in Jet Pipe Servo-Valve |
title_full | Research on Pressure-Flow Characteristics of Pilot Stage in Jet Pipe Servo-Valve |
title_fullStr | Research on Pressure-Flow Characteristics of Pilot Stage in Jet Pipe Servo-Valve |
title_full_unstemmed | Research on Pressure-Flow Characteristics of Pilot Stage in Jet Pipe Servo-Valve |
title_short | Research on Pressure-Flow Characteristics of Pilot Stage in Jet Pipe Servo-Valve |
title_sort | research on pressure-flow characteristics of pilot stage in jet pipe servo-valve |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9823615/ https://www.ncbi.nlm.nih.gov/pubmed/36616814 http://dx.doi.org/10.3390/s23010216 |
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