基于NSGA-Ⅱ算法的柔性气缸弹射影响参数优化研究

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振动与冲击 ›› 2025, Vol. 44 ›› Issue (9) : 99-108.

振动理论与交叉研究

基于NSGA-Ⅱ算法的柔性气缸弹射影响参数优化研究

王卓越，杨宝生，姜毅*，杨哩娜，王汉平

作者信息 +

Optimization of parameters affecting flexible cylinder ejection based on NSGA-II algorithm

WANG Zhuoyue, YANG Baosheng, JIANG Yi*, YANG Lina, WANG Hanping

Author information +

文章历史 +

摘要

柔性气缸弹射作为一种新型弹射方法，具有红外目标隐蔽、能量输出稳定等优点。为解决柔性气缸弹射过载较大、响应时间较长的问题，进一步提高弹射响应速度和弹射稳定性，本文引入了一种代理模型优化方法对柔性气缸弹射过程进行优化，旨在减小弹射过载并提升弹射速度。基于代理模型理论，建立柔性气缸弹射代理模型，对代理模型进行精度分析，在此基础上，深入探究了充气孔直径、开启时间以及开启时长这三个关键参数对弹射动力学响应的具体影响。结合NSGA-Ⅱ（Non-dominated Sorting Genetic Algorithm II）优化算法，对弹射模型的相关参数进行了优化处理。研究结果显示，采用粒子法的有限元模型能够精确模拟柔性气缸的弹射过程；进一步的分析表明，相较于响应面模型Kriging代理模型在替代柔性气缸有限元模型方面展现出了更高的准确性。针对初始设计点，我们提出了通过NSGA-Ⅱ算法优化的均衡设计方案，该方案成功地将弹射速度提升了4.79%，同时将弹射过载降低了21.70%；并针对弹射速度与最大过载的优化过程给出了优化方案。

Abstract

As a new type of ejection method, flexible cylinder ejection has the advantages of infrared target concealment and stable energy output. In order to solve the problems of large overload and long response time of flexible cylinder ejection, and further improve the ejection response speed and ejection stability, this paper introduces an agent model optimization method to optimize the ejection process of flexible cylinder, which aims to reduce the ejection overload and improve the ejection speed. Based on the theory of agent model, an agent model of flexible cylinder ejection is established, and the accuracy of the agent model is analyzed. On this basis, the effects of three key parameters, namely, the diameter of the inflation hole, the opening time, and the opening duration, on the ejection dynamics are investigated in depth. Combined with NSGA-II (Non-dominated Sorting Genetic Algorithm II) optimization algorithm, the relevant parameters of the ejection model were optimized. The results show that the finite element model using the particle method is able to accurately simulate the ejection process of the flexible cylinder; further analysis shows that the Kriging proxy model demonstrates higher accuracy in replacing the finite element model of the flexible cylinder compared to the response surface model. For the initial design point, we propose a balanced design scheme optimized by NSGA-II algorithm, which successfully increases the ejection velocity by 4.79% and reduces the ejection overload by 21.70%; and an optimization scheme is given for the optimization process of the ejection velocity and the maximum overload.

导出引用

王卓越, 杨宝生, 姜毅, 杨哩娜, 王汉平. 基于NSGA-Ⅱ算法的柔性气缸弹射影响参数优化研究[J]. 振动与冲击, 2025, 44(9): 99-108

WANG Zhuoyue, YANG Baosheng, JIANG Yi, YANG Lina, WANG Hanping. Optimization of parameters affecting flexible cylinder ejection based on NSGA-II algorithm[J]. Journal of Vibration and Shock, 2025, 44(9): 99-108

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