RU2282812C1 - Method for automated ballistic preparation of fire of artillery guns - Google Patents

Abstract

FIELD: armaments, applicable for automated ballistic preparation of fire of tank guns and self-propelled artillery guns.

SUBSTANCE: the method consists in introduction of a correction for variation of the propellant charge temperature into the shell muzzle velocity by taking into account the variation of the propellant charge temperature before fire. To this end, a temperature-sensitive element is installed in the propellant charge, a signal is read off the temperature-sensitive element and its value is taken into account at introduction of the correction into the shell muzzle velocity.

EFFECT: enhanced precision of determination of the shell muzzle velocity.

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Description

The invention relates to a method for ballistic preparation for firing artillery guns and can be used for ballistic preparation for firing automatic guns of tank guns and self-propelled artillery guns having an automatic loading mechanism (mechanism).

The ballistic preparation of the gun includes the definition of corrections for firing due to [1]:

- wear of the channel of the gun barrel;

- deviations from the normal (+ 15 ° C) temperature of the propelling charge;

- changes in the properties of a batch of propellant charges;

- ballistic characteristics of shells.

The invention provides a method for determining the correction for shooting due to deviations from the normal temperature of the propellant charge. The prototype of this invention is the invention RU 2206042 C2 (IPC F 41 G 3/12) from 10.06.2003, [2].

When the charge temperature deviates from normal, the initial velocity of the projectile changes. For standard artillery guns in the operating temperature range from -50 to + 50 ° С, its change reaches 7.8% [3]. The results of the experiment showed that the actual temperature dispersion of the charges in the stack and the fighting compartment of self-propelled artillery guns reaches 4 and 17 ° C, respectively.

Currently, the temperature measurement of charges is carried out manually by the temperature of one charge located in the combat compartment of a self-propelled artillery gun or in a stack [1, 3]. When determining the temperature of the charges, it was assumed that the uniformity of temperatures in all charges intended for firing is ensured. To determine the temperature of the charge no later than 1.5 hours before firing for shots separately-shell loading under a normal cover between the beams of gunpowder in the sleeve put a thermometer. For unitary loading shots, the thermometer is placed in a container with one of the propelling charges. Then, at a firing position, a temperature measurement of the charge is organized every 1-2 hours, and for self-propelled artillery guns, the temperature of the charges in the fighting compartment and the charges on the ground are measured separately. To ensure uniform temperature of the charges in the stack, it is recommended that containers with shots or shells with charges laid out from containers be reliably protected from heat by the sun during the day and from cooling during the night. From the measured temperature using the shooting tables or computing devices determine the correction for shooting.

The disadvantages of this method are obvious. It is not efficient, time-consuming, requires additional measures, does not take into account the real dispersion of the temperature of the charges and has a relatively large measurement error.

The aim of the present invention is the automated determination of corrections for firing deviation from normal (+ 15 ° C) charge temperature when loading automatic (mechanism) loading artillery guns. The invention is illustrated in the drawing.

This goal is achieved by the fact that it is proposed to install a temperature sensor 2 in the propellant charge 1 in the medium-volume temperature region. When a machine gun (mechanism) is loading an artillery gun, a signal is read from temperature sensor 2, the value of which is automatically taken into account when calculating and introducing corrections to the initial speed shell.

The proposed method allows you to: 1) increase firing efficiency, taking into account the correction for firing from changes in the real temperature of each propellant charge; 2) reduce the time of ballistic shooting training; 3) reduce the median error of determining the temperature of the charge, which will be reduced to the instrumental error of the measuring instruments; 4) to exclude activities at the firing position for the organization of temperature control of propellant charges and ensuring its uniformity in the volume of the stack; 5) to ensure that the time of ballistic preparation is independent of the inertia of the measuring instruments, since the sensor is constantly in a propelling charge.

Used Books

1. The rules of firing and fire control artillery. Division, battery, platoon, gun. PS and UO-96. Part 1. - Moscow: Military Publishing House, 1996. - 375 p.

2. Patent RU 2206042 C2 (IPC F 41 G 3/12) dated 06/10/2003.

3. Shooting tables for lowland and mountainous conditions of the 152 mm howitzer 2A65 and the 152 mm self-propelled howitzer 2C19. TS RG No. 187. - Moscow: Military Publishing House, 1994. - 760 p.

Claims (1)

A method of automated ballistic preparation for firing artillery shells, including the introduction of an amendment to change the temperature of the propellant charge in the initial velocity of the projectile, characterized in that to take into account changes in the temperature of the propellant charge before firing and reduce the time for ballistic preparation of firing, a temperature sensor is installed in the propellant charge, the signal is read from temperature sensor and take into account its value when introducing amendments to the initial velocity of the projectile.