基于空间几何关系的新型失效准则下模块装药摆载定位精度可靠性分析

IF 5 Q1 ENGINEERING, MULTIDISCIPLINARY

Defence Technology(防务技术) Pub Date : 2025-02-10 DOI:10.1016/j.dt.2025.02.006

Zihan Wang , Linfang Qian , Liu Yang , Taisu Liu , Weiwei Chen , Haolin Zhang

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引用次数: 0

摘要

摆动装填过程是火炮自动装填系统的重要组成部分。研究了影响摆载定位精度的可靠性分析问题。建立了多自由度摆动-载荷-刚柔集成耦合系统的动力学模型。该模型基于关键参数的识别和平台实验。基于模装药传递过程中后膛与装填机之间的空间几何关系和模装药可能的最大干涉深度，提出了一种新的摆装定位精度可靠性评估失效准则。考虑摆装载机工作中的不确定性，采用直接概率积分法分析了摆装载机在三种装药量下摆装载机定位精度的可靠性。结果表明，在2装药和4装药情况下，摆动加载过程具有良好的可靠性。而在6装药下发生摆动运动时出现不稳定阶段，定位失效概率最大为0.0712。通过对常规准则和所提准则的比较，进一步揭示了所提准则的有效性和必要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Reliability analysis of modular charge swinging-loading positioning accuracy under new failure criterion based on spatial geometric relationship

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Reliability analysis of modular charge swinging-loading positioning accuracy under new failure criterion based on spatial geometric relationship

The swinging-loading process is essential for automatic artillery loading systems. This study focuses on the problems of reliability analysis that affect swinging-loading positioning accuracy. A dynamic model for a multi degree-of-freedom swinging-loading-integrated rigid–flexible coupling system is established. This model is based on the identification of key parameters and platform experiments. Based on the spatial geometric relationship between the breech and loader during modular charge transfer and the possible maximum interference depth of the modular charge, a new failure criterion for estimating the reliability of swinging-loading positioning accuracy is proposed. Considering the uncertainties in the operation of the pendulum loader, the direct probability integration method is introduced to analyze the reliability of the swinging-loading positioning accuracy under three different charge numbers. The results indicate that under two and four charges, the swinging-loading process shows outstanding reliability. However, an unstable stage appears when the swinging motion occurred under six charges, with a maximum positioning failure probability of 0.0712. A comparison between the results obtained under the conventional and proposed criteria further reveals the effectiveness and necessity of the proposed criterion.

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来源期刊

Defence Technology(防务技术) Mechanical Engineering, Control and Systems Engineering, Industrial and Manufacturing Engineering

CiteScore

8.70

自引率

0.00%

发文量

728

审稿时长

25 days

期刊介绍： Defence Technology, a peer reviewed journal, is published monthly and aims to become the best international academic exchange platform for the research related to defence technology. It publishes original research papers having direct bearing on defence, with a balanced coverage on analytical, experimental, numerical simulation and applied investigations. It covers various disciplines of science, technology and engineering.