协调臂的刚柔耦合动力学分析及新型定向子区间不确定性分析方法的应用

IF 2.1 3区 工程技术 Q2 ENGINEERING, AEROSPACE
Xuan Gao, Longmiao Chen, Jingsong Tang
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引用次数: 0

摘要

弹壳输送系统通常用于航空航天工程中圆柱形弹丸的输送。协调机构在确保可靠的弹筒输送中起着关键作用,其定位精度至关重要。然而,由于协调机构在运动过程中涉及众多复杂、不确定的因素,准确描述输入参数与输出响应之间的非线性关系具有挑战性。为解决这一问题,本研究提出了一种动力学模型,该模型结合了铰链间隙来表示协调机构内的刚柔耦合。实验验证证实了该模型的有效性,同时通过使用深度学习神经网络代理模型提高了计算效率。此外,研究还引入了一种改进的方向子区间不确定性分析方法,并将其应用于协调机制的不确定性分析,结果表明与其他方法相比,该方法具有更高的效率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Rigid–Flexible Coupling Dynamics Analysis of Coordination Arm and Application of a New Directional Subinterval Uncertainty Analysis Method
Cartridge delivery systems are commonly employed in aerospace engineering for the transportation of cylindrical projectiles. The coordination mechanism plays a pivotal role in ensuring reliable cartridge conveying, with its positioning accuracy being of utmost importance. However, accurately depicting the nonlinear relationship between input parameters and output response is challenging due to the involvement of numerous complex, uncertain factors during the movement process of the coordination mechanism. To address this issue, this study proposes a dynamics model that incorporates hinged gaps to represent rigid–flexible coupling within the coordination mechanism. Experimental validation confirms its effectiveness, while computational efficiency is enhanced through the utilization of a deep learning neural network surrogate model. Furthermore, an improved method for the uncertainty analysis of directional subintervals is introduced and applied to analyze uncertainty in coordination mechanisms, yielding results that demonstrate superior efficiency compared to other approaches.
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来源期刊
Aerospace
Aerospace ENGINEERING, AEROSPACE-
CiteScore
3.40
自引率
23.10%
发文量
661
审稿时长
6 weeks
期刊介绍: Aerospace is a multidisciplinary science inviting submissions on, but not limited to, the following subject areas: aerodynamics computational fluid dynamics fluid-structure interaction flight mechanics plasmas research instrumentation test facilities environment material science structural analysis thermophysics and heat transfer thermal-structure interaction aeroacoustics optics electromagnetism and radar propulsion power generation and conversion fuels and propellants combustion multidisciplinary design optimization software engineering data analysis signal and image processing artificial intelligence aerospace vehicles'' operation, control and maintenance risk and reliability human factors human-automation interaction airline operations and management air traffic management airport design meteorology space exploration multi-physics interaction.
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