Research on Dynamic Response Characteristics of Low Power Digital Valve Based on Response Surface Method

doi:10.3901/JME.2025.12.344

Abstract

Abstract: Aiming at the problems of highly pressure-affected opening and closing time, complex driving method, high energy consumption, and slow response of traditional digital valves under the current driving method. Based on the design of a new low-power digital valve, a low-power digital valve driving parameter matching method considered the response surface method is proposed, which improves dynamic characteristics while ensuring low power consumption. By establishing the dynamic model of the low-power digital valve, the influence of working pressure and driving parameters on the response time is analyzed. Using the response surface method, the prediction model of opening and closing response time is constructed, and the matching relationship between driving parameters and working pressure is obtained with the response time of 1 ms as the target. Finally, a low-power digital valve test platform is built to verify the accuracy of the dynamic model and the effectiveness of the driving parameter matching method. The test results show that the maximum response time of opening and closing is 1.08 ms and 1.09 ms, and the shortest response time is 1.06 ms and 1.07 ms, the rate of change is all less than 2%, within the range of 3-19 MPa working pressure. The matching drive parameters effectively improve the dynamic characteristics of the valve and its stability under variable pressure conditions, and the valve temperature is maintained at about 80 ℃ after a long time. The low power consumption effect is obvious.

Key words: low power consumption, digital valve, response time, dynamic characteristics, response surface method

CLC Number:

TH137

YANG Shuai, YAO Jing, WEI Tengfei, ZHANG Pengyuan, WANG Yunchang, YIN Hang, QIU Mingjun. Research on Dynamic Response Characteristics of Low Power Digital Valve Based on Response Surface Method[J]. Journal of Mechanical Engineering, 2025, 61(12): 344-355.

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