线膛身管有限元网格参数化建模方法
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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。
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.
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.
引文
[1]张喜发,卢兴华.火炮烧蚀内弹道学[M].北京:国防工业出版社,2001.ZHANG Xifa, LU Xinghua. Interior ballistics of erosion guns[M]. Beijing:National Defense Industry Press,2001.(in Chinese)
[2]孙全兆.大口径榴弹炮弹带挤进动力学研究[D].南京:南京理工大学,2015.SUN Quanzhao. Numerical research on rotating bang engraving process of a large-caliber howitzer[D]. Nanjing:Nanjing University of Science and Technology,2015.(in Chinese)
[3]李淼,钱林方,孙河样.某大口径弹带热力耦合挤进动力学数值模拟研究[J].兵工学报,2016,37(10):1803-1813.LI Miao,QIAN Linfang,SUN Heyang. Research on coupled thermo-mechanical model during rotating band engraving process[J]. Acta Armamentarii,2016,37(10):1803-1813.(in Chinese)
[4]刘国庆,徐诚.狙击步枪弹准静态弹头挤进力研究[J].兵工学报,2014,35(10):1529-1537.LIU Guoqing,XU Cheng. Research on quasi-static engraving force of sniper rifle bullet[J]. Acta Armamentarii,2014,35(10):1529-1537.(in Chinese)
[5]丘尔巴诺夫E B.挤进时期内弹道学与挤进压力计算[M].杨敬荣,译.北京:国防工业出版社,1997.Qierbarov E B. Interior ballistics and engraving force calculation during engraving of projectile[M]. Translated by YANG Jingrong. Beijing:National Defense Industry Press,1997.(in Chinese)
[6]丁传俊,张相炎.基于热力耦合有限元的弹带挤进过程及内弹道过程的仿真研究[J].兵工学报,2015,36(12):2254-2261.DING Chuanjun, ZHANG Xiangyan. Simulation study of bearing band engraving process and interior ballistic process based on thermo-mechanical coupling FEA model[J]. Acta Armamentarii,2015,36(12):2254-2261.(in Chinese)
[7]丁传俊,张相炎,刘宁.身管内膛参数化模型及其磨损有限元模型的生成方法[J].兵工学报,2016,37(12):2212-2219.DING Chuanjun,ZHANG Xiangyan,LIU Ning. A parametric modeling method for gun barrel and a meshing generation strategy for worn barrel[J]. Acta Armamentarii, 2016,37(12):2212-2219.(in Chinese)
[8]张振辉.末制导炮弹与火炮身管相互耦合机理及适配性技术[D].南京:南京理工大学,2012.ZHANG Zhenhui. The mutual interaction mechanism between terminal guided projectile and barrel[D]. Nanjing:Nanjing University of Science and Technology,2012.(in Chinese)
[9]葛建立,杨国来,陈运生,等.基于弹塑性接触/碰撞模型的弹炮耦合问题研究[J].弹道学报,2008,20(3):103-106.GE Jianli,YANG Guolai,CHEN Yunsheng,et al. A study on projectile-barrel coupling problem based on elastoplastic contact/impact model[J]. Journal of Ballistics,2008,20(3):103-106.(in Chinese)
[10]刘雷,陈运生,杨国来,等.基于接触模型的弹炮耦合问题研究[J].兵工学报,2006,27(6):984-987.LIU Lei,CHEN Yunsheng,YANG Guolai,et al. A study on the projectile-barrel coupling based on contact model[J].Acta Armamentarii,2006,27(6):984-987.(in Chinese)
[11]吴会民,牛长根.弹丸膛内运动分析[J].火炮发射与控制学报,2011(4):62-65.WU Huimin, NIU Changgen. Analysis on moving characteristics of projectile in bore[J]. Journal of Gun Launch&Control,2011(4):62-65.(in Chinese)
[12]过斌,葛建立,张鸿浩,等.膛线身管的NURBS建模与等几何数值分析[J].南京理工大学学报,2015,39(5):538-543.GUO Bin, GE Jianli, ZHANG Honghao, et al. NURBS model and isogeometric analysis of rifled barrel[J]. Journal of Nanjing University of Science and Technology,2015,39(5):538-543.(in Chinese)
[13]邵培,于存贵,魏浩.基于ABAQUS二次开发的旋压参数化加工研究[J].机械制造与自动化,2015,44(1):109-112.SHAO Pei,YU Cungui,WEI Hao. Parametric processing of spinning based on ABAQUS secondary development[J].Machine Building&Automation,2015,44(1):109-112.(in Chinese)
[14]苏景鹏,江芮云. ABAQUS Python二次开发攻略[M].北京:人民邮电出版社,2016.SU Jingpeng,JIANG Ruiyun. Secondary development strategy based on ABAQUS[M]. Beijing:Posts&Telecom Press,2016.(in Chinese)
[15]迈耶斯M A.材料的动力学行为[M].张庆明,刘彦,黄风雷,等译.北京:国防工业出版社,2006.Meyers M A. Dynamic behavior of materials[M]. Translated by ZHANG Qingming,LIU Yan,HUANG Fenglei,et al.Beijing:National Defense Industry Press, 2006.(in Chinese)
[16]Johnson G R,Cook W H. Fracture characteristics of three metals subjected to various strains,strain rates,temperatures and pressures[J]. Engineering Fracture Mechanics,1985,21(1):31-48.
[17]孙全兆,杨国来,王鹏,等.某大口径榴弹炮弹带挤进过程数值模拟研究[J].兵工学报,2015,36(2):206-213.SUN Quanzhao, YANG Guolai, WANG Peng, et al.Numerical research on rotating bang engraving process of a large-caliber howitzer[J]Acta Armamentarii,2015,36(2):206-213.(in Chinese)
[2]孙全兆.大口径榴弹炮弹带挤进动力学研究[D].南京:南京理工大学,2015.SUN Quanzhao. Numerical research on rotating bang engraving process of a large-caliber howitzer[D]. Nanjing:Nanjing University of Science and Technology,2015.(in Chinese)
[3]李淼,钱林方,孙河样.某大口径弹带热力耦合挤进动力学数值模拟研究[J].兵工学报,2016,37(10):1803-1813.LI Miao,QIAN Linfang,SUN Heyang. Research on coupled thermo-mechanical model during rotating band engraving process[J]. Acta Armamentarii,2016,37(10):1803-1813.(in Chinese)
[4]刘国庆,徐诚.狙击步枪弹准静态弹头挤进力研究[J].兵工学报,2014,35(10):1529-1537.LIU Guoqing,XU Cheng. Research on quasi-static engraving force of sniper rifle bullet[J]. Acta Armamentarii,2014,35(10):1529-1537.(in Chinese)
[5]丘尔巴诺夫E B.挤进时期内弹道学与挤进压力计算[M].杨敬荣,译.北京:国防工业出版社,1997.Qierbarov E B. Interior ballistics and engraving force calculation during engraving of projectile[M]. Translated by YANG Jingrong. Beijing:National Defense Industry Press,1997.(in Chinese)
[6]丁传俊,张相炎.基于热力耦合有限元的弹带挤进过程及内弹道过程的仿真研究[J].兵工学报,2015,36(12):2254-2261.DING Chuanjun, ZHANG Xiangyan. Simulation study of bearing band engraving process and interior ballistic process based on thermo-mechanical coupling FEA model[J]. Acta Armamentarii,2015,36(12):2254-2261.(in Chinese)
[7]丁传俊,张相炎,刘宁.身管内膛参数化模型及其磨损有限元模型的生成方法[J].兵工学报,2016,37(12):2212-2219.DING Chuanjun,ZHANG Xiangyan,LIU Ning. A parametric modeling method for gun barrel and a meshing generation strategy for worn barrel[J]. Acta Armamentarii, 2016,37(12):2212-2219.(in Chinese)
[8]张振辉.末制导炮弹与火炮身管相互耦合机理及适配性技术[D].南京:南京理工大学,2012.ZHANG Zhenhui. The mutual interaction mechanism between terminal guided projectile and barrel[D]. Nanjing:Nanjing University of Science and Technology,2012.(in Chinese)
[9]葛建立,杨国来,陈运生,等.基于弹塑性接触/碰撞模型的弹炮耦合问题研究[J].弹道学报,2008,20(3):103-106.GE Jianli,YANG Guolai,CHEN Yunsheng,et al. A study on projectile-barrel coupling problem based on elastoplastic contact/impact model[J]. Journal of Ballistics,2008,20(3):103-106.(in Chinese)
[10]刘雷,陈运生,杨国来,等.基于接触模型的弹炮耦合问题研究[J].兵工学报,2006,27(6):984-987.LIU Lei,CHEN Yunsheng,YANG Guolai,et al. A study on the projectile-barrel coupling based on contact model[J].Acta Armamentarii,2006,27(6):984-987.(in Chinese)
[11]吴会民,牛长根.弹丸膛内运动分析[J].火炮发射与控制学报,2011(4):62-65.WU Huimin, NIU Changgen. Analysis on moving characteristics of projectile in bore[J]. Journal of Gun Launch&Control,2011(4):62-65.(in Chinese)
[12]过斌,葛建立,张鸿浩,等.膛线身管的NURBS建模与等几何数值分析[J].南京理工大学学报,2015,39(5):538-543.GUO Bin, GE Jianli, ZHANG Honghao, et al. NURBS model and isogeometric analysis of rifled barrel[J]. Journal of Nanjing University of Science and Technology,2015,39(5):538-543.(in Chinese)
[13]邵培,于存贵,魏浩.基于ABAQUS二次开发的旋压参数化加工研究[J].机械制造与自动化,2015,44(1):109-112.SHAO Pei,YU Cungui,WEI Hao. Parametric processing of spinning based on ABAQUS secondary development[J].Machine Building&Automation,2015,44(1):109-112.(in Chinese)
[14]苏景鹏,江芮云. ABAQUS Python二次开发攻略[M].北京:人民邮电出版社,2016.SU Jingpeng,JIANG Ruiyun. Secondary development strategy based on ABAQUS[M]. Beijing:Posts&Telecom Press,2016.(in Chinese)
[15]迈耶斯M A.材料的动力学行为[M].张庆明,刘彦,黄风雷,等译.北京:国防工业出版社,2006.Meyers M A. Dynamic behavior of materials[M]. Translated by ZHANG Qingming,LIU Yan,HUANG Fenglei,et al.Beijing:National Defense Industry Press, 2006.(in Chinese)
[16]Johnson G R,Cook W H. Fracture characteristics of three metals subjected to various strains,strain rates,temperatures and pressures[J]. Engineering Fracture Mechanics,1985,21(1):31-48.
[17]孙全兆,杨国来,王鹏,等.某大口径榴弹炮弹带挤进过程数值模拟研究[J].兵工学报,2015,36(2):206-213.SUN Quanzhao, YANG Guolai, WANG Peng, et al.Numerical research on rotating bang engraving process of a large-caliber howitzer[J]Acta Armamentarii,2015,36(2):206-213.(in Chinese)