发射药药型参数驱动结构建模方法研究
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摘要
目前对于极限装填密度的确定一般根据经验估计取值,为研究发射药药形对装填密度的影响,需要以发射药三维模型为模板建立发射药离散元模型,基于离散单元法进行装填过程的仿真,因此实现发射药药型参数驱动结构建模具有重要的意义。利用C#语言,连接发射药药型参数数据库,对SolidWorks进行二次开发,详细阐述了圆柱七孔和梅花十九孔发射药的建模方法、编程方法,并模拟了122 mm模块装药的装填过程,初步验证了相同条件下不同药形发射药的装填密度具有差异性。
At present, the determination of the extremity loading density is generally based on empirical estimation. In order to study the effect of propellant shape on loading density, it is necessary to build the discrete element model of propellant based on the three-dimensional model of propellant and to simulate the loading process based on DEM(Discrete Element Method). Therefore, it is of great significance to realize the parameter-driven structure modeling of propellant. SolidWorks was redeve-loped by connecting the database of propellant type parameters with C# language. The modeling method, programming method and precautions of cylindrical seven-hole and plum nineteen-hole propellants are elaborated in detail. The loading process of 122 mm modular propellants was simulated, preliminarily validating that gun propellants of different shapes have different loading densities.
At present, the determination of the extremity loading density is generally based on empirical estimation. In order to study the effect of propellant shape on loading density, it is necessary to build the discrete element model of propellant based on the three-dimensional model of propellant and to simulate the loading process based on DEM(Discrete Element Method). Therefore, it is of great significance to realize the parameter-driven structure modeling of propellant. SolidWorks was redeve-loped by connecting the database of propellant type parameters with C# language. The modeling method, programming method and precautions of cylindrical seven-hole and plum nineteen-hole propellants are elaborated in detail. The loading process of 122 mm modular propellants was simulated, preliminarily validating that gun propellants of different shapes have different loading densities.
引文
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[10] 胡国明.颗粒系统的离散元素法仿真分析[M].武汉:武汉理工大学出版社,2010.
[2] 张小兵.枪炮内弹道学[M].北京:北京理工大学出版社,2014:204-227.
[3] 叶炜威,余才佳.SolidWorks 2006实体建模与二次开发教程[M].北京:国防工业出版社,2006:180-209.
[4] 李卫民,刘淑芬.基于Solidworks平台的二次开发技术[J].机械制造,2003(4):24-26.
[5] 吕晓燕,贾海英,张晓钟.基于VB对SolidWorks二次开发方法的研究[J].机械设计与制造,2005(3):114-116.
[6] 唐敏康,李永兵.基于C#.NET的SolidWorks二次开发在数字矿山中的应用[J].现代矿业,2009,25(5):63-65.
[7] 张柏生,林天木.炮用火药装药[M].北京:机械委兵工教材编审室,1988.
[8] 国防科学技术委员会.炮用单基发射药通用规范:GJB 558A—1997[S].北京:国防科工委军标出版发行部,1997.
[9] 盛利,张亮有,谢立新.SolidWorks二次开发精确草绘问题的分析与探讨[J].现代制造工程,2014(4):68-71,76.
[10] 胡国明.颗粒系统的离散元素法仿真分析[M].武汉:武汉理工大学出版社,2010.