首页> 外国专利> ASSESSMENT METHOD OF PROTECTIVE PROPERTIES OF ARMOUR HELMETS BY DETERMINING RISK OF UNDER-ARMOUR CONTUSION HEAD INJURY

ASSESSMENT METHOD OF PROTECTIVE PROPERTIES OF ARMOUR HELMETS BY DETERMINING RISK OF UNDER-ARMOUR CONTUSION HEAD INJURY

机译:确定装甲下头部头部受伤风险的装甲头盔防护性能评估方法

摘要

FIELD: weapons and ammunition.;SUBSTANCE: invention relates to tests of personal protective equipment of a person, namely to assessment methods of protective properties of armour helmets against action of high-speed striking elements - small arms bullets and fragments formed during explosions of HE ammunition. Besides, the proposed technical solution can be related to special medical equipment. An assessment method of protective properties of armour helmets by determining risk of under-armour contusion head injury consists in action with striking elements of fire arms on an armour helmet put on a dummy head made according to anthropometric parameters of a human head and recording of consequences of action by measurement of dummy deformations. The method differs from the known ones by the fact that there measured is a value of elastic deformation of the dummy base in a direction perpendicular to the base plane, quantitative assessment of risk of under-armour contusion head injury is performed as per risk index Kr according to a chart of Kr dependence on maximum elastic deformation S of the dummy base, and the found quantitative value Kr is used as a parameter characterising protective properties of the armour helmet; with that, at value Kr of less than 0.50 an allowable risk degree is forecasted, and when Kr is equal to and more than 0.50, a high risk degree of occurrence of under-armour contusion head injury is forecasted, with that, material with elasticity modulus of 0.2 to 0.5 GPa is used as material for the dummy head base.;EFFECT: method allows characterising damage to health in a certain and quantitative manner, which is related to occurrence of under-armour contusion injury at penetration of a bullet or a fragment into the armour helmet.;3 cl, 4 dwg
机译:技术领域:本发明涉及人的个人防护装备的测试,即,评估防弹头盔抵抗高速打击元素(HE爆炸时形成的小武器子弹和碎片)作用的防护性能的方法。弹药。此外,提出的技术解决方案可以与特殊医疗设备有关。通过确定装甲下挫伤性头部受伤的风险来评估装甲头盔的防护性能的方法包括:对根据人体头部的人体测量学参数制成的假人头上的装甲头盔上的火力进行打击,并记录后果通过测量虚拟变形来确定作用。该方法与已知方法的不同之处在于,所测量的是假人基座在垂直于基座平面的方向上的弹性变形值,并根据风险指数K定量评估了盔甲下挫伤性头部受伤的风险根据K r 与虚设基座的最大弹性变形S的关系图,确定 r ,并使用找到的定量值K r 表征盔甲头盔防护特性的参数;这样,当K r 的值小于0.50时,可预测的允许风险程度;当K r 等于或大于0.50时,则发生的风险高。预测了盔甲下挫伤性颅脑损伤的发生率,因此,将弹性模量为0.2到0.5 GPa的材料用作假人头基的材料。效果:该方法可以以一定定量的方式表征对健康的损害,即与子弹或碎片刺入装甲头盔时发生的装甲下挫伤有关; 3 cl,4 dwg

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