As the effective way of obscuring important target , covering the army ’ s action and making the enemy ’ s fire power blind , smokescreen has catched every country ’ s attention 烟雾作为遮蔽重要目标、掩护部队行动、迷盲敌人火力、干扰敌人侦察、观瞄器材和精确制导武器的有效手段,已被世界各国所重视。
At present , one of the development trends of smokescreen is to improve its obscure power , so the measurement of smokecscreen obscure power is the most important content of the research on smokescreen 目前烟雾干扰技术的发展趋势之一就是要提高烟雾的遮蔽能力,对烟雾遮蔽性能的测试就成为目前烟雾技术研究的重要内容。
The preparation and capacity of the smokescreen materials against infrared wave were studied in the dissertation . firstly , the new methods to measure the anti - infrared ability of graphite and carbon fibre with the dual - waveband infrared radiation instrument were be found 探讨了影响粉体材料对红外衰减能力的原因,进而分别在石墨和云母表面进行了化学镀铜和化学镀镍,并测试和研究了化学镀前后材料对红外的衰减能力。
In recent years , they paid more attention to the research , development and production of smokescreen equipment . the battles have proved that when attacking weapon ’ s efficiency reduced by 4 / 5 , while defending it could let the enemy ’ s weapon efficiency reduced by 9 / 10 战争证明进攻时烟雾能使敌方武器效能降低4 / 5 ,防御时能使敌方武器效能降低9 / 10 ,还有资料介绍,激光制导反坦克导弹在烟雾干扰下探测效能下降80 % ,命中精度下降60 % 。
At last , the radiation transmit process in smokescreen is discussed , and the transmitted radiation energy distribution is obtained from extinction characters of particles . the relationship between transmittance and smokescreen concentration is experimental studied , the experiment results agrees with calculated results . we also discuss the application limit and error of lambert - beer law in smokescreen studies 本文最后讨论了辐射在随机分布微粒形成烟幕中的传输过程,根据烟幕微粒的消光特性计算出辐射通过烟幕后的能量分布情况,讨论了在烟幕研究中应用lambert ? beer定律的误差问题,并对透过率随烟幕浓度的变化情况进行了实验研究,结果表明,理论计算结果能够与实验数据较好吻合。
Thirdly , the cluster - cluster aggregation model is used to study the possible structure of aggregated smokescreen particle . we also develop the mathematical radiation extinction model of aggregated particle based on t - matrix method . associated with monte carlo method , another computer program is designed to simulate the extinction cross section and scattering cross section of actually aggregated particle 本文还将“凝聚体?凝聚体”凝聚模型应用于烟幕凝聚现象研究,模拟出了烟幕凝聚粒子的可能结构,并且根据t矩阵方法发展了凝聚粒子消光特性的计算方法,结合montecarlo方法,编写了能够模拟实际烟幕凝聚粒子消光截面、散射截面的计算程序。
This paper deals with theoretical study on extinction characters of non - spherical particles and their smokescreen , which is one of the fundamental researches of smokescreen technology . the mathematical radiation extinction model of particles is discussed , and numerical simulation of extinction characters of particle and smokescreen is developed 本文就非球形微粒及其形成烟幕的消光机理开展了研究,针对烟幕对辐射衰减的理论模型,进行了非球形微粒及其形成烟幕的消光特性数值模拟。