考虑运动副间隙的折叠翼机构运动精度可靠性分析
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V224

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国家自然科学基金资助项目(U20B2028)


Reliability Analysis of the Motion Accuracy of Folding Wing Mechanism Considering the Clearance Between Motion Pairs
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    摘要:

    针对运动副间隙引发的冲击振动问题,提出一种并行加点策略的自适应Kriging可靠性分析方法。首先,基于L-N模型和改进Coulomb模型建立了铰链间隙碰撞模型,并采用Lagrange法构建了机构动力学模型。通过引入影响函数(IF)和伪学习函数(PH),实现了每次迭代中多个训练点的并行选取,显著提升了建模效率。然后以数值模拟分析了间隙值、材料弹性模量和摩擦因数对角位移误差可靠性的影响。结果表明,与传统方法相比,所提出方法在保证精度的同时提高了计算效率,可为折叠翼机构的可靠性设计提供理论支持。

    Abstract:

    A reliability analysis method using adaptive Kriging with a parallel point strategy has been proposed to address the impact vibration problem caused by the clearance between motion pairs. Firstly, a hinge clearance collision model is established based on the L-N model and an improved Coulomb model, with a mechanism dynamics model constructed by using the Lagrange method. By introducing the influence function (IF) and pseudo learning function (PH), parallel selection of multiple training points in each iteration has been achieved, significantly improving modeling efficiency. A numerical simulation analysis has been made of the influence of gap value, material elastic modulus, and friction coefficient on the reliability of diagonal displacement error. The results demonstrate that, compared to traditional methods, the proposed approach significantly enhances computational efficiency while ensuring accuracy, providing effective theoretical support for the reliability design of folding wing mechanisms.

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黎 钰,彭鑫阳,王泽鑫,姚齐水,唐嘉昌.考虑运动副间隙的折叠翼机构运动精度可靠性分析[J].湖南工业大学学报,2026,40(4):8-16.

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  • 在线发布日期: 2026-02-06
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