| 引用本文: | 邹利波,于存贵,郭昭蔚,等.线膛身管有限元网格参数化建模方法.[J].国防科技大学学报,2019,41(3):77-82.[点击复制] |
| ZOU Libo,YU Cungui,GUO Zhaowei,et al.Parametric modeling method of finite element grid for rifling barrel[J].Journal of National University of Defense Technology,2019,41(3):77-82[点击复制] |
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| 线膛身管有限元网格参数化建模方法 |
| 邹利波1, 于存贵1, 郭昭蔚2, 冯广斌1 |
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(1. 南京理工大学 机械工程学院, 江苏 南京 210094;2.中国船舶重工集团七一三研究所, 河南 郑州 450015)
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| 摘要: |
| 为了精确快速地建立身管结构有限元网格模型，提出基于Python脚本语言操作单元和节点坐标的参数化建模方法，建立身管结构有限元网格模型。使用该方法能够精确地建立身管内膛(包含药室、坡膛和导向部)和外部轮廓的有限元网格模型，并进行参数化建模。以76 mm火炮身管为对象，建立身管与弹丸耦合的有限元模型，计算弹丸在身管内的全弹道运动过程，并结合相应实验进行验证。研究结果表明：该方法能够精确快速地建立身管结构有限元网格模型。 |
| 关键词: 身管结构 参数化建模 弹炮耦合 有限元 膛线 |
| DOI：10.11887/j.cn.201903013 |
| 投稿日期：2018-03-09 |
| 基金项目:国家部委基金资助项目（6141B04010503） |
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| Parametric modeling method of finite element grid for rifling barrel |
| ZOU Libo1, YU Cungui1, GUO Zhaowei2, FENG Guangbin1 |
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(1. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;2. No. 713 Research Institute of China Shipbuilding Industry Corporation, Zhengzhou 450015, China)
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| Abstract: |
| In order to establish the finite element grid model of the tube structure accurately and quickly, a parametric modeling method based on the Python script language operating unit and the node coordinates was proposed to establish the finite element grid model of the body tube. Through this method, the finite element mesh model of the tube bore (including the medicine chamber, the slope and the guide part) and the external contour were accurately established and parameterized. In addition, with the 76 mm artillery as the object, the finite element model of the coupling of the barrel and the projectile was established, and the full ballistic motion of the projectile was calculated and verified with the corresponding experiment. The results show that the method can accurately and quickly establish the finite element mesh model of the tube structure. |
| Keywords: rifling barrel parametric modeling projectile-barrel coupling finite element rifling |
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