弹头表面磨损形貌的分形研究  

Fractal study on topography of bullet surface wear

作　　者：王炳成[1] 景畅[2] 任朝晖[1] 张帆[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004 [2]广东警官学院机械工程系,广东广州510232

出　　处：《辽宁工程技术大学学报（自然科学版）》2004年第6期829-831,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：广东省科研基金资助项目 (2003C32401)

摘　　要：应用分形理论对弹头磨损表面形貌进行了研究,研究表明,其表面磨损形貌的不规则和随机分布性具有分形特征。应用轮廓仪对不同枪支发射子弹的弹头磨损表面进行数据采集并计算出其分形维数,其研究结果表明:不同枪支发射子弹时,造成弹头表面磨损程度不同,其分形维数也不同。因此可将其分形维数作为描述弹头表面磨损程度特征量,会比较有效、方便地分析弹头表面形貌变化的特点,为推断发射子弹枪支提供了依据,也为弹头痕迹的量化检验进行了一种新的探索。The topography of bullet surface wear was studied by using fractal theory. The irregularity and random distribution of its surface wear show the fractal characteristics. The data of the surface wear of the bullets shot from different guns were collected, and their fractal dimension were calculated by applying the profile meter. The result shows that the surface wear of bullets from different guns has different fractal dimensions. Therefore, the fractal dimension may be used as an index to describe the characteristics of bullet surface wear. This may help to analyze, effectively and conveniently, the characteristics of the change of bullet surface topography, and provide reference for the judgment of the gun that shoots such bullets, which is regarded as a preparatory study on the quantitative examination of bullet marks.

关 键 词：分形理论 分形维数 弹头表面 磨损形貌 

分 类 号：TH114[机械工程—机械设计及理论]