RU2531660C1 - Warhead - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to rocket engineering, and namely to warheads with semi-finished striking elements. A warhead consists of a housing, an explosive charge with a concave face and a semi-finished striking element adjacent to it. Explosive charge length is 0.75…0.9 of diameter of the semi-finished striking element. Thickness of the bottom part of the housing is (1…3)δ_s.e.(σ_s.e./σ_h), where σ_s.e. - thickness of the semi-finished striking element, σ_s.e., σ_h - ultimate strength of material of the semi-finished striking element and the housing of the warhead respectively.

EFFECT: improvement of combat effectiveness of a warhead.

1 dwg

Description

The invention relates to the field of rocket technology, namely to combat units with semi-finished striking elements, and can be used in the development of armor-piercing self-aiming combat elements for multiple launch rocket systems.

The object of the invention is a warhead (warhead) of increased efficiency for self-aiming warheads of rockets of multiple launch rocket systems.

Multiple launch rocket systems are successfully used to combat many types of targets, including to combat armored vehicles. The high efficiency of defeating such targets is achieved through the use of self-aiming combat elements equipped with armor-piercing combat units with semi-finished striking elements. Thus, a warhead is known that contains a body, explosive charge with a concave end and a semi-finished striking element of variable thickness adjacent to it (French application No. 2410244, published July 27, 1979), which the authors took as an analogue.

The objective of this technical solution was to create a warhead capable of forming a striking element, ensuring penetration of the armor of tanks and other armored vehicles. However, in the process of improving armored vehicles, the thickness of the armor increased and new types appeared. As a result of this, the design adopted by the authors as an analogue is currently not effective enough for armor penetration.

Common signs with the proposed warhead is the presence of a shell, explosive charge with a concave end and the adjacent semi-finished striking element.

The warhead according to the patent of the Russian Federation No. 2221985, which is accepted by the authors as a prototype, is also known. This warhead contains a casing, a explosive charge with a concave end face, and a semi-finished striking element adjacent to it.

The objective of this technical solution was to create a warhead of increased combat effectiveness by improving the aerodynamic shape and providing the mass of the striking element required for hitting a target.

Common signs with the warhead proposed by the authors are the presence in the prototype of the body, the explosive charge with a concave end and the adjacent semi-finished striking element.

The warhead, taken as a prototype, operates as follows. Under the influence of excessive pressure of the detonation products formed when the explosive charge is detonated, the material of the semi-finished striking element moves to the axis of the warhead, thereby the striking element is formed and rushes towards the target, ensuring its destruction. However, the unregulated length of the explosive charge and the wall thickness of the warhead hull do not allow achieving the maximum throwing speed of the striking element, thereby not ensuring the maximum effectiveness of hitting the target.

Unlike the prototype, in the warhead the explosive charge is 0.75 ... 0.9 in diameter of the semi-finished striker

, где δ_nэ - толщина полуготового поражающего элемента, σ_nэ, σ_к - предел прочности материала полуготового поражающего элемента и корпуса боевой части соответственно.element, and the thickness of the bottom of the hull is

where δ _ne - the thickness of the semi-finished striking element, σ _ne , σ _k - the tensile strength of the material of the semi-finished striking element and the warhead housing, respectively.

This allows us to conclude that there is a causal relationship between the totality of existing features of the claimed technical solution and the achieved technical result.

The task of the invention is the creation of a warhead of increased efficiency with an increased throwing speed of the striking element.

, где δ_nэ - толщина полуготового поражающего элемента, σ_nэ, σ_к - предел прочности материала полуготового поражающего элемента и корпуса боевой части соответственно.The specified technical result is achieved by the fact that in the warhead containing the shell, the explosive charge with a concave end and the adjacent semi-finished striking element, the explosive charge length is 0.75 ... 0.9 of the diameter of the semi-finished striking element, and the thickness of the bottom of the shell is

where δ _ne - the thickness of the semi-finished striking element, σ _ne , σ _k - the tensile strength of the material of the semi-finished striking element and the warhead housing, respectively.

A new set of structural elements, as well as the presence of connections between the details of the warhead, allow, in particular, due to the following:

- the length of the explosive charge equal to 0.75 ... 0.9 of the diameter of the semi-finished striking element, to ensure the maximum throwing speed of the striking element towards the target. During detonation of an explosive in the warhead, overpressure of the combustion products of the explosive is formed, under the influence of which the formation of the damaging element occurs and its throwing towards the target. The effectiveness of armor penetration directly depends on the speed of movement of the striking element at the moment it hits the target and is proportional to its square. Thus, increasing the initial throwing speed of the striking element allows you to increase its speed when it hits the target, thereby ensuring an increase in the effectiveness of combat use. When the explosive charge length is less than 0.75 of the diameter of the semi-finished striking element, the overpressure of the combustion products of the explosive does not provide the maximum throwing speed of the striking element, and in some cases it may be insufficient even for the formation of the striking element. The fulfillment of the explosive charge length of more than 0.9 of the diameter of the semi-finished striking element, as shown by experimental studies, does not increase the throwing speed of the striking element, but is not desirable, since it leads to an increase in the dimensions, weight and cost of the warhead without improving the combat effectiveness;

, где δ_nэ - толщина полуготового поражающего элемента, σ_nэ, σ_к - предел прочности материала полуготового поражающего элемента и корпуса боевой части соответственно, обеспечить максимальное использование энергии взрыва взрывчатого вещества на формирование и метание в направлении цели поражающего элемента. В процессе детонации взрывчатого вещества происходит практически мгновенное его сгорание, сопровождающееся выделением большого количества энергии, заключенной прежде всего в избыточном давлении продуктов сгорания ВВ. Избыточное давление действует на корпус боевой части и полуготовый поражающий элемент, расположенный в торце боевой части, стремясь их разрушить. Выполнение стенки донной части корпуса толщиной

позволяет сохранить ее прочность и избежать разрушения в процессе детонации ВВ и тем самым избежать потерь избыточного давления. В результате этого наибольшая часть энергии взрыва будет направлена на формирование поражающего элемента и метание его в направлении цели с максимальной скоростью, что в свою очередь позволит повысить эффективность боевого применения. Уменьшение толщины донной части корпуса боевой части менее

приведет к тому, что часть энергии взрыва ВВ будет израсходована на деформацию или разрушение донной части корпуса боевой части, а не на формирование и метание поражающего элемента. Это приведет к снижению скорости метания поражающего элемента и, соответственно, к снижению боевой эффективности. Увеличение толщины донной части корпуса боевой части более

не влияет на увеличение скорости поражающего элемента и боевую эффективность. При этом чрезмерно увеличивается масса боевой части, что является нежелательным.- thickness of the bottom of the hull, component

where δ _ne - the thickness of the semi-finished striking element, σ _ne , σ _k - the tensile strength of the material of the semi-finished striking element and the warhead case, respectively, to maximize the use of explosive energy to form and throw in the direction of the target of the striking element. In the process of detonation of an explosive, its combustion occurs almost instantaneously, accompanied by the release of a large amount of energy, primarily contained in the excess pressure of the combustion products of the explosive. Excessive pressure acts on the body of the warhead and a semi-finished striking element located at the end of the warhead, trying to destroy them. The execution of the wall of the bottom of the hull thickness

allows you to maintain its strength and to avoid destruction in the process of detonation of explosives and thereby avoid loss of excess pressure. As a result, the largest part of the energy of the explosion will be directed to the formation of the damaging element and throwing it in the direction of the target at maximum speed, which in turn will increase the effectiveness of combat use. Reducing the thickness of the bottom of the warhead hull less

will lead to the fact that part of the explosive energy will be spent on deformation or destruction of the bottom of the warhead, and not on the formation and throwing of the striking element. This will lead to a decrease in the throwing speed of the striking element and, accordingly, to a decrease in combat effectiveness. The increase in the thickness of the bottom of the warhead hull more

does not affect the increase in the speed of the striking element and combat effectiveness. In this case, the warhead mass is excessively increased, which is undesirable.

The invention is illustrated in the drawing, where figure 1 shows a General view of the warhead.

The warhead consists of a housing 1, an explosive charge 2 with a concave end and the adjacent semi-finished striking element 3.

, что позволяет обеспечить максимальное использование энергии взрыва взрывчатого вещества 2 на формирование и метание поражающего элемента.The charge length (L _BB ) of explosive 2 is 0.75 ... 0.9 diameter (d _ne ) of the semi-finished striking element 3, which allows for the formation and maximum throwing speed of the striking element. The thickness (δ _dong ) of the bottom 4 of the housing 1 is

that allows you to ensure maximum use of the energy of the explosion of the explosive 2 on the formation and throwing of the striking element.

The proposed warhead works as follows. During the explosion of explosive 2 inside the body 1 creates excess pressure that is not able to deform or destroy the body of the warhead, due to its high strength, and which acts on the plastic material of the semi-finished striking element 3. As a result of this effect, the material of the semi-finished striking element 3 is deformed, forming a ready-made striking element, which, under the action of excessive pressure of the combustion products of explosives, begins to move in the direction of the target. By acquiring the maximum initial throwing speed, the striking element provides high efficiency penetration of armor. In addition, an increase in the throwing speed of the striking element allows you to increase the range at which it is possible to hit the target, which also increases the combat effectiveness of the use of ammunition of this type.

Based on the invention, design documentation was developed, a batch of warheads was made, during the test of which the specified technical result was obtained. Serial production of combat units of the proposed design is planned.

Claims (1)

The warhead containing the shell, the explosive charge with a concave end and the adjacent semi-finished striking element, characterized in that the explosive charge length is 0.75 ... 0.9 of the diameter of the semi-finished striking element, and the thickness of the bottom of the shell is

where

- the thickness of the semi-finished striking element,

,

- the tensile strength of the material of the semi-finished striking element and the warhead housing, respectively.