Shock absorber sea-based ballistic missile

 

(57) Abstract:

The invention relates to marine missile armament. Shock absorber sea-based ballistic missile contains a belt made up of shock absorbers made in the form of a hollow rubber boxes with metal base, fixed on the side surface missiles. The side opposite to the base, each shock absorber is made open with the formation of cavities in the form of niches. Thus for the one with the side walls of the shock absorber is formed a flange with a sealing groove, and the flange is reinforced with a metal inside a closed frame. The invention allows to expand the range of stiffness of the shock absorbers due to use as the working fluid environment and damping vibrations of the rocket under the influence of external disturbing factors. 4 Il.

The invention relates to the field of rocketry and can be used when designing inrush (starting) installations Maritime ballistic missiles launched from submarines and surface conditions.

Modern rocket science for sustainable position and the desired direction of the rocket in% is atarov. When this damper may be installed on the rocket, and on the wall of the chute. Modern rocket science known type schemes launchers submarines of the United States (see "Ballistic missile submarines of Russia". Selected articles, State rocket center KB them. academician B. N. Makeeva, 1997, pp. 145-147, Fig. 3) where the damping force and shock loads acting on the rocket during its operation, apply absorbers made of polyurethane foam and elastomer. Also known cushioning devices missiles Polaris a-3", made in the form of sealing zones (see I. N. Pencak "Theory of flight and design of ballistic missiles", "engineering", 1974, page 258, Fig. 13.14, item 7).

The disadvantage of the above patterns launchers containing absorbers from poliuretano and elastomer, is the inability to change the power characteristics depreciation in different operating conditions (in terms of campaign and launch missiles from submerged position).

The closest in technical essence to the declared object and selected as a prototype is a diagram launcher with rubber horizontal depreciation (see "Ballistic missiles,, pages 143-145, Fig. 2), where for depreciation during operation of the rocket in the mine launchers and provide directional movement of the rocket launcher in the mine during launch from surface ships and underwater position use the bumpers made of rubber.

The disadvantage of this scheme launchers containing absorbers is the inability to change the power characteristics of the shock absorbers in different operating conditions, for example in field conditions and in conditions starting from an underwater position, where the rocket is valid incoming flow of water due to the speed of the submarine. It should be noted that the force characteristics of the shock absorbers choose from a condition of maximum power loading, which leads to undesirable increase in amortization device installed on the rocket, and to an overestimation of the stiffness of the shock absorbers under field conditions. The invention is aimed at expanding the range of power characteristics of shock absorbers without changing their design parameters by using as the working fluid to the environment (air or water), which allows to reduce the weight of the dampers missiles, and hasenauer the flow of water, and so on), i.e. for providing a damping effect on the rocket.

According to the invention this problem is solved as follows. In it, each shock absorber on the opposite substrate side is made open with the formation of the cavity in the form of niche, with the perimeter of the end surface of one side wall of the shock absorber is formed a flange on the outer surface of which is made of a sealing groove, and the flange on the inside is reinforced with a metal closed frame.

The invention is illustrated in the drawing, where Fig.1 shows a General view of the device of Fig. 2 shows a cross section along a-a of Fig.3 shows a view I of Fig.4 shows curves of the transverse movement of the mine on the magnitude of the force loading for different operating conditions missiles.

The device contains the launcher (mine)1 rocket 2, which features rubber bumpers box type 3 with metal bases 4, each shock absorber is made open with the formation of the cavity 5, and the perimeter of one with the walls of the absorber is formed a flange 6 on the outer surface of which is formed by sealing groove 7, in this case, the collar is reinforced with a metal seacity is carried out as in field conditions submarine in the air shaft, and in the process launch missiles from submerged position in the water environment, with power loading, depending on the operating conditions differ significantly. So, during the launch of a submarine mine on the rocket, and therefore the shock absorbers, there are significant forces due to the flow speed of the water (the start takes place on a moving boat), which is many times the force, for example, from the vehicle pitching submarine in field conditions. Selection of the power characteristics of the shock absorbers is carried out under condition of providing their health at the maximum loading that adversely affects the health of the shock absorbers at low loads (increased stiffness), and, therefore, worsen the conditions of the rocket.

The invention provides for the use of the environment in the starting shaft (air or water) as the working fluid in the system depreciation for the different operating conditions of the rocket. For a hypothetical missiles in Fig.4 shows a qualitative picture of the dependency of the transverse movement of the rocket in the mine, due to power loaded from perturbations for the different operating conditions of the depreciation system is, the. that is, without the use of the environment (air or water) as a working body, with force characteristics of the shock absorbers is determined only by the material characteristics of the shock absorbers and their design. Curve N2 corresponds to the conditions missiles when starting mine and sealed cavity of the shock absorber is filled with air.

In the process of loading the shock absorber is deformed, while the air pressure inside it increases, due to which its rigidity is increased, and when removing the load damper springs up due to the elasticity of the material of the absorber and the excess air pressure in the cavity. Here the air is used as working fluid, works like a spring. This transverse movement of the rocket launcher in the mine (a) less than for the curve N1 of the conditions are the same loading them.

Curve N3 corresponds to the operating conditions of shock absorbers, when starting mine and sealed cavity absorbers filled with water. In the process of loading of the shock absorbers by nsimemory fluid (water) hardness significantly increased, while lateral movement of the rocket decreases.

From the comparative analysis of the curves on fieisty dampers depending on the conditions.

In Fig.1 shows a General view of the shock absorber 3, through which the base 4 is fixed on the rocket 2, the cavity 5 is made open to the side wall 1 chute. In field conditions the gap between the wall 1 mine and 2 rocket filled the air. When exposed to disturbances, such as pitching side, the missile 1 is moved in the transverse direction in the direction of action of the disturbing factor, in this case the flange 6 fits snugly to the wall 1 of the mine, due to which the cavity 5 is isolated from the external environment, and the sealing groove 7 the edges helps to ensure sufficient tightness of the cavity 5.

It should be noted that at the moment of contact of the flange 6 with the wall 1 of the mine part of the air due to leaks flows in the environment and in the cavity 5 when moving missiles air pressure increases, increasing the stiffness of the shock absorber 3, and the air in the cavity 5 is used as a working body (like a spring). When the load reaches its maximum value, the rocket 2 will be moved to the end position in the gap chute. Then the impact of the disturbing factor is reduced to zero, while the missile 2 is moved in the opposite direction due to the elastic is 5 is equal to the ambient pressure, when the flange 6 due to residual elastic strain remains pressed against the wall 1 of the mine. During further movement of the missile 2 in the reverse direction, the pressure in the cavity 5 will be reduced in relation to the environment, i.e., will be the effect of the suction Cup, while the sealing groove 7 allows better sealing of the cavity 5, and the metal closed frame 8, a reinforcing flange 6 prevents shapevine shock absorber 3.

So is the damping of the rocket due to disturbing factors. During further movement of the missile 2 is tripping flange 6 with the wall 1 chute and swing in the opposite direction with less effort. In a further cycle of repeated loads.

Similarly implemented, the operation of the shock absorber 3 in the launch of 2 from an underwater position, when the gap between the missile 2 and the wall 1 of the mine is filled with sea water, while the cavity 5 of the damper 3 is also filled with water. Here, the main disturbing factor acting on the rocket 2, and therefore the shock absorbers 3, is the power loading from the flow of water due to the progress of atora 3, the cavity is filled with water. During force loading of the rocket 2 moves to the side wall 1 start mine up until the flange 6 is in contact with the wall 1, at the same time because of the looseness of the slit and the flexibility of the walls of the sealing grooves 7 of the water from the cavity 5 flows into the environment, after which the cavity 5 is sealed.

Further movement of the rocket 2 because of nsimemory water is only due to the deformation of the material of the absorber 3, which makes the shock absorber 3 more hard, and therefore, at the maximum loading of the moving rocket 2 lower compared to the previous operating conditions. This liquid in the cavity 5 improves the sliding of the damper 3 and the wall 1 chute in the process of entering missiles from silos. In the case of fluctuations 2 rocket launcher in the mine during the reverse course of the missile, the flange 6 of the shock absorber 3 with the sealing groove 7 works like a suction Cup, at the same time because nsimemory fluid damping effect is increased several times compared to previous conditions. The use of water in the cavity 5 of the shock absorber 3 as the working fluid results in a minimum poperechnyy on the underwater site.

So is the shock absorbers are sea-based ballistic missile when filling silos with air or water.

Implementation of the proposed damping device launchers sea-based ballistic missile allows to obtain a technical result, which is expressed in the expansion of the range of stiffness of the shock absorbers depending on operating conditions without changing their design parameters, by using the environment as a working body, and damping of the rocket, due to external disturbing factors. Yo

Cushioning device of sea-based ballistic missiles containing cushioning belt, made of shock-absorbers in the form of a hollow rubber boxes with metal base, which is fixed on the side surface of the missile, wherein each shock absorber on the opposite substrate side is made open, with the formation of the cavity in the form of niche, with the perimeter of the end surface of one side wall of the shock absorber is formed a flange on the outer surface whose perimeter is made of the sealing groove, and the flange on the inside and

 

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