Nonlinear modeling and parameter optimization of the pilot stage applied to the deflector-jet servovalve

IF 1.4 4区计算机科学 Q4 AUTOMATION & CONTROL SYSTEMS

Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering Pub Date : 2024-01-29 DOI:10.1177/09596518241227496

Yuesong Li

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引用次数: 0

Abstract

Due to its good anti-pollution performance and high reliability, the deflector-jet servovalve is widely used in aerospace engineering. However, because the jet effects such as boundary expansion and adsorption are neglected, the model of the pilot stage applied to the deflector-jet servovalve is inaccurate, making it difficult to simulate the performance and optimize the parameters of the deflector-jet servovalve based on the model. Based on the structure of the jet flow field and the hydraulic resistance network bridge, an accurate nonlinear mathematical model of the pilot stage applied to the deflector-jet servovalve was developed, which considers the influence of the jet effect. Based on the new mathematical model, the structural parameters of the pilot stage were optimized with the maximum pressure, maximum flow, and maximum transmission power as the optimization objectives, respectively. Then the design criteria of the structural parameters were given based on the parameter optimization. Finally, the accuracy of the model was verified by three experiments. The comparison between experiments and this new model showed the maximum relative error of the flow between the model and experiment to be about 8.09%, which is more accurate than the traditional models.

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应用于偏转喷射伺服阀的先导级的非线性建模和参数优化

由于偏转喷射伺服阀具有良好的抗污染性能和高可靠性，因此在航空航天工程中得到了广泛应用。然而，由于忽略了边界膨胀和吸附等射流效应，应用于偏转器-射流伺服阀的先导级模型不准确，导致难以根据模型模拟偏转器-射流伺服阀的性能和优化其参数。根据射流流场和水力阻力网桥的结构，建立了适用于偏转器-射流伺服阀的先导级的精确非线性数学模型，该模型考虑了射流效应的影响。在新数学模型的基础上，分别以最大压力、最大流量和最大传输功率为优化目标，对先导级的结构参数进行了优化。然后，根据参数优化结果给出了结构参数的设计标准。最后，通过三次实验验证了模型的准确性。实验与新模型的对比显示，模型与实验之间流量的最大相对误差约为 8.09%，比传统模型更加精确。

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 工程技术-自动化与控制系统

CiteScore

3.50

自引率

18.80%

发文量

审稿时长

4.2 months

期刊介绍： Systems and control studies provide a unifying framework for a wide range of engineering disciplines and industrial applications. The Journal of Systems and Control Engineering refleSystems and control studies provide a unifying framework for a wide range of engineering disciplines and industrial applications. The Journal of Systems and Control Engineering reflects this diversity by giving prominence to experimental application and industrial studies. "It is clear from the feedback we receive that the Journal is now recognised as one of the leaders in its field. We are particularly interested in highlighting experimental applications and industrial studies, but also new theoretical developments which are likely to provide the foundation for future applications. In 2009, we launched a new Series of "Forward Look" papers written by leading researchers and practitioners. These short articles are intended to be provocative and help to set the agenda for future developments. We continue to strive for fast decision times and minimum delays in the production processes." Professor Cliff Burrows - University of Bath, UK This journal is a member of the Committee on Publication Ethics (COPE).cts this diversity by giving prominence to experimental application and industrial studies.