RU2116605C1 - Method of projectile firing - Google Patents

Abstract

FIELD: salvo firing rocket systems. SUBSTANCE: values of parameters of each projectile influencing its deviation when fired, for example, mass and geometrical characteristics are determined during its manufacture. These values are applied in the form of code on surface of projectile. While launcher is loaded code is read and its value is sent into computer of launcher which generates correction of angle of sight for each projectile individually. Then launching is performed. EFFECT: increased density of hits by projectiles without enhancement of requirements to their manufacture.

Description

 The invention relates to the field of military equipment and is intended to increase the accuracy of firing of shells, mainly multiple launch rocket systems, mainly by reducing their dispersion in the direction. In determining the prior art used publicly available information provided in all known sources of information.

 Known methods of reducing the dispersion of shells, both rocket and artillery are divided into two groups [1].

 The first group provides a reduction in the dispersion of shells by reducing their sensitivity to perturbations, for example, associated with an increase in the muzzle velocity of the projectile, a decrease in wind sensitivity, etc.

 The second group - methods that reduce the dispersion of the parameters of the shells, determined by production errors.

 The possibilities of using methods for reducing the dispersion of shells of the first group are now practically exhausted. A relatively small effect is achieved by significantly complicating the design of the projectile or projectile device and ultimately almost unacceptable, as it is unacceptably more expensive system, increases its weight or degrades performance.

 The introduction of elements of control systems into the design of the projectile usually provides the effect of reducing dispersion, but reducing production capabilities and complicating the conditions for storing and operating shells in troops also limits the possibility of using this direction.

 There is also a known method of firing MLRS shells, including a preliminary determination of the firing conditions taking into account real manufacturing errors and the introduction of appropriate amendments to the aiming angle of the launcher, loading the launcher and launching shells [2].

 In this prototype, it is indicated that the marking is applied to the warhead and rocket (cylindrical) part of the rocket. The shell index is applied to the warhead, equipment number, batch number, manufacture year code, explosive code. The pyro cartridge, gunpowder brand, gunpowder batch number, year of manufacture code and powder gun code, powder charge batch number, ballistic index (number of shooting tables), batch number and shell assembly year code, missile unit batch number and year code are applied to the reactive part manufacture. The firing table is the main document that determines the preparation and conduct of firing from this artillery system. Before firing, shells must be inspected, sorted and prepared for firing. Inspection of shells is aimed at establishing their compliance with the artillery system and firing tasks, as well as with a high-quality condition. Compliance is determined by the caliber and markings affixed to its head and cylindrical parts. To reduce the dispersion of shells, shots are sorted by batch of charges and by signs of mass deflection, and the reduction of rocket artillery shells to the fully equipped form is carried out under the direct supervision of the commander of a combat vehicle, which does not allow shells without marking, as well as with erased marking, to be erased allowing to establish their belonging to the batch of shots available at the firing position. Thus, as indicated in the prototype, all shells are labeled and then sorted precisely in batches of charges.

 The applicant proposes to improve the well-known method of firing shells, based on the use of firing tables, in which having determined in advance the values of ballistic and meteorological conditions for a given firing, corrections can be calculated that take into account the influence of these conditions on the flight of shells. However, the firing tables cannot affect the dispersion of each projectile. For this, it is necessary to use modern computers, a mathematical apparatus, achievements of ballistics, and forecasting theory.

 The proposed invention seeks to increase the accuracy of firing without tightening manufacturing tolerances of products that are unacceptable in mass production.

 This goal is achieved due to the fact that in the proposed method of firing shells based on a preliminary determination of the firing conditions taking into account real errors in the manufacture of the projectile for introducing appropriate amendments to the pointing angle of the launcher with subsequent launch, the values of its parameters are determined in the manufacture of each projectile its deviation during firing, for example, mass and geometrical characteristics, apply these values in the form of a code on the surface of the projectile, and when firing starts of the second installation, the code is read and its value transmitted to the launcher computer, which generates a correction of the angle of guidance of each shell individually.

 Comparative analysis shows that the claimed method of firing shells differs from the known one in that, in the manufacture of each shell, it determines the values of its parameters that affect its deflection when firing, for example, mass and geometric characteristics, put these values in the form of a code on the surface of the shell, and when loading the launcher, the code is read and its value is transmitted to the launcher computer, which generates a correction of the pointing angle of each shell individually.

 Given the foregoing, this technical solution meets the criterion of "novelty."

 To determine whether the proposed invention meets the criterion of "inventive step", an analysis of the identified features in analogues that are generally available in the press is carried out. Given that the proposed technical solution has a new set of features that for a specialist do not explicitly follow from the existing level of technology, it meets the criterion of "inventive step".

 Carry out the proposed method as follows. During the production of the projectile, the values of its parameters are recorded, which affect the dispersion during firing, for example, mass and geometric characteristics. These parameters are applied in the form of signs on the surface of the shells in a place rigidly oriented relative to, for example, its leading pin. Thus, each shell "remembers" its characteristics. A launcher for a set of shells has guidance equipment for guiding the package of guides connected to the onboard computer, which is equipped with a reader located on the launcher in the package of guides to read data from the shells. When the combat vehicle is loaded, the projectile is guided by a certain position relative to the reader so that the signs that carry information about its parameters are opposite the sensitive reader, which transmits to the computer encoded information about each parameter on the projectile, which allows calculating the trajectory of a real projectile, optimizing corrections to the guidance nodes so that the real projectile trajectory provides compensation for deviations of its parameters from the nominal ones. Thus, a shot is fired under conditions that compensate for deviations of the projectile parameters, which improves the accuracy of each projectile and the accuracy of the volley as a whole.

 The invention is tested in one of the OCD developed by the applicant. Its use allowed to reduce the deviation of shells from the aiming point in 1.5 - 1.8 times. The use of the invention can also reduce the requirements for the accuracy of manufacture of individual elements of shells by taking into account the real values of the obtained parameters.

 Based on the foregoing, widespread use of the implementation of the proposed invention is expected in all self-propelled guns and MLRS.

Claims (1)

 A method of firing shells based on a preliminary determination of the firing conditions taking into account real errors in the manufacture of the shell for introducing appropriate amendments to the angle of the launcher guidance with subsequent launch, characterized in that in the manufacture of each shell determine the values of its parameters that affect its deviation during firing, for example mass and geometric characteristics, apply these values in the form of a code to the surface of the projectile, and when loading the launcher, read the code and transmit e value on the computer launcher, which produces a correction of the angle of guidance for each projectile individually.