[1]刘坤,吴志林,徐万和,等.球形破片侵彻明胶修正力学模型[J].南京理工大学学报(自然科学版),2012,36(05):755.
 LIU Kun,WU Zhi-lin,XU Wan-he,et al.Correction Mechanical Model of Spherical Fragments Penetrating Gelatin[J].Journal of Nanjing University of Science and Technology,2012,36(05):755.
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球形破片侵彻明胶修正力学模型
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
36卷
期数:
2012年05期
页码:
755
栏目:
出版日期:
2012-10-31

文章信息/Info

Title:
Correction Mechanical Model of Spherical Fragments Penetrating Gelatin
作者:
刘坤吴志林徐万和莫根林
南京理工大学机械工程学院,江苏南京210094
Author(s):
LIU KunWU Zhi-linXU Wan-heMO Gen-lin
School of Mechanical Engineering,NUST,Nanjing 210094,China
关键词:
球形破片侵彻明胶修正力学模型明胶抗力
Keywords:
spherical fragmentspenetrating gelatincorrection mechanical modelsgelatin resistance
分类号:
O357. 1
摘要:
为了弥补球形破片侵彻明胶力学模型仅考虑惯性阻力和粘性阻力的局限性,该文在现有模型中引入明胶抗力,得出同时考虑3 种阻力的修正模型。以Φ4 mm 球形破片为杀伤元,根据最小二乘法原理计算参数,确定了最佳的惯性阻力系数和粘性阻力系数。通过与准Φ mm、Φ4 mm、Φ4. 8 mm 3 种口径球形破片侵彻明胶试验数据的对比分析,验证了模型参数选取的合理性和准确性。结果表明,修正后的力学模型能够更准确地描述3 种口径球形破片侵彻明胶的运动过程。
Abstract:
To improve the mechanical model of the spherical fragments penetrating gelatin includingthe inertial resistance and the viscosity resistance only,the gelatin resistance is taken into the originalmodel, and a new equation of motion is developed. The correction mechanical model consideringthree resistances is proposed. Based on the principle of least squares,parameters are calculated todetermine the best coefficients of the inertial resistance and the viscous resistance by selecting theΦ4 mm diameter spherical fragments as the example. The comparison of calculation and experimentresults of Φ3 mm,Φ4 mm and Φ4. 8 mm diameter spherical fragments verifies the reasonableness andthe accuracy of parameter selection. The results show that the correction mechanical model candescribe the movement of the three spherical fragments penetrating the gelatin more accurately.

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备注/Memo

备注/Memo:
收稿日期:2011-07-14修回日期:2012-03-01基金项目:国家973 计划资助项目(613104);江苏省博士研究生科研创新培养基金(CXLX11_0273);南京理工大学优秀博士论文培养基金作者简介:刘坤(1986-),男,博士生,主要研究方向:创伤弹道理论模型,E-mail:liukun515@ yahoo. com. cn;通讯作者:吴志林(1967-),男,博士,教授,博士生导师,主要研究方向:自动武器及其弹药的设计理论,wuruinan-1994@ njust. edu. cn。
更新日期/Last Update: 2012-11-26