| 分段杆弹的梯度化设计 |
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| 引用本文： | 喻争,王舒,董方栋,郑志军,崔世堂,张永亮. 分段杆弹的梯度化设计[J]. 兵工学报, 2022, 43(9): 2300-2306. DOI: 10.12382/bgxb.2022.0460 |
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| 作者姓名： | 喻争 王舒 董方栋 郑志军 崔世堂 张永亮 |
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| 作者单位： | (1.中国科学技术大学 近代力学系 中国科学院材料力学行为和设计重点实验室, 安徽 合肥 230026; 2.中国兵器工业第208研究所 瞬态冲击技术重点实验室, 北京 102202) |
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| 基金项目： | 国家自然科学基金项目(12102428); 瞬态冲击技术重点实验室基金项目(6142606211111); 中央高校基本科研业务费专项资金项目(WK2480000008) |
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| 摘 要： | 为充分发挥出分段杆弹侵彻效能,利用LS-DYNA软件拉格朗日算法对钨合金长杆弹侵彻装甲钢进行数值模拟,得到长杆侵彻的典型物理图像和重要物理量的时程曲线,与实验和理论结果进行对比,验证有限元模型的有效性。构造了各段长度梯度分布的和各段直径梯度分布的两类分段杆,对比研究了其侵彻效能。研究结果表明：分段杆弹体总有效长度一定时,各段长度均匀相等时分段杆的侵彻能力最大;各段直径梯度分布的分段杆弹比各段长度梯度分布的分段杆侵彻深度大。
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| 关 键 词： | 分段杆弹 梯度设计 弹体优化 有限元模拟 |
Gradient Design of Segmented Rod Projectile |
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| YU Zheng,WANG Shu,DONG Fangdong,ZHENG Zhijun,CUI Shitang,ZHANG Yongliang. Gradient Design of Segmented Rod Projectile[J]. Acta Armamentarii, 2022, 43(9): 2300-2306. DOI: 10.12382/bgxb.2022.0460 |
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| Authors: | YU Zheng WANG Shu DONG Fangdong ZHENG Zhijun CUI Shitang ZHANG Yongliang |
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| Affiliation: | (1.CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026, Anhui,China; 2.Science and Technology on Transient Impact Laboratory, No.208 Research Institute of China Ordnance Industries, Beijing 102202, China) |
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| Abstract: | In order to give full play to the penetration efficiency of segmented rod projectile, the LS-DYNA software Lagrangian algorithm was used to simulate the penetration of tungsten alloy long rod projectile into armored steel. The typical physical images of long rod penetration and the time history curves of important physical quantities were obtained, which verifies the effectiveness of the finite element model. Two kinds of segmented rods with length gradient distribution and diameter gradient distribution are constructed, and their penetration efficiency was compared. The results show that when the total effective length of the segmented rod projectile is fixed, the length of each segment is uniform and equal, and the penetration ability of the segmentation rod is the greatest; The penetration depth of segmented rod with diameter gradient distribution in each segment is greater than that of the segmented rod with length gradient distribution in each segment. |
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| Keywords: | segmentedrodprojectile gradientdesign projectileoptimization finiteelementsimulation |
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