Analysis of Temperature Characteristics of Electro-hydraulic Servo Valve Based on AMESim

DOI

10.2991/meees-18.2018.10How to use a DOI?

Keywords

AMESim; Electro-hydraulic servo valve; Temperature; Control characteristics.

Abstract

In order to study the influence of the change of hydraulic oil temperature on the control characteristics of the electro-hydraulic servo valve, simulation analysis was carried out based on AMESim software. According to the structural characteristics and working principle of the dual-nozzle type baffle electro-hydraulic servo valve, a graphical physical model of the servo valve is established. The control variable method was used to group and set the oil viscosity parameters at different temperatures, and the results from batch processing were compared and analyzed. It shows that under low temperature conditions, the servo valve output amplitude is greatly attenuated and the hysteresis is also large. At higher temperatures, the step response speeds up, and the overshoot increases. As the temperature increases, the servo valve width and the phase width increase to varying degrees, but at the same time, the internal leakage of the valve also increases, and the increase is significant.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zeqi Chen
AU  - Weihui Wang
PY  - 2018/05
DA  - 2018/05
TI  - Analysis of Temperature Characteristics of Electro-hydraulic Servo Valve Based on AMESim
BT  - Proceedings of the 2018 International Conference on Mechanical, Electrical, Electronic Engineering & Science (MEEES 2018)
PB  - Atlantis Press
SP  - 47
EP  - 53
SN  - 2352-5401
UR  - https://doi.org/10.2991/meees-18.2018.10
DO  - 10.2991/meees-18.2018.10
ID  - Chen2018/05
ER  -