Five-freedom-degree vibration displacement test method for artillery cradle

Abstract

The invention discloses a five-freedom-degree vibration displacement test method for an artillery cradle. The five-freedom-degree vibration displacement test method for the artillery cradle comprises three steps of: step one, testing vertical and horizontal movement of an artillery cradle during the artillery firing by using a laser displacement follower; step two, testing the movement of the artillery cradle along a direction line during the artillery firing by using the laser displacement follower, fixing a laser device on the cradle to synchronously move along with the cradle, arranging a laser detector on the ground around an artillery, and receiving the laser sent by the laser device with the laser detector; and step three, obtaining the pitch angle movement and the side-to-side swing angle displacement of the cradle according to the cradle vibration line displacement test results by using a calculation module. In the way, the five-freedom-degree vibration displacement test method can realize the five-freedom-degree vibration displacement of the cradle. The method can fill the blank of the five-freedom-degree vibration displacement test method for large caliber artillery cradles, and provide an effective test method for researching the influence of the structural vibration of the artillery on the firing intensity mechanism and enhancing the artillery firing intensity performance, so that the type development level of the artillery can be obviously enhanced.

Description

[0001] The invention relates to a method for testing the five-degree-of-freedom vibration displacement of the artillery cradle under shooting conditions. Specifically, the invention relates to a method for measuring the vibration displacement of the cradle of a large-caliber artillery along the height and direction (or called left and right) relative to the ground during the shooting test. , front and rear translation displacement, and cradle pitch and left and right swing angular displacement test methods. technical background [0002] During the development process of artillery weapons, projectile dispersion (that is, shooting intensity) performance tests must be carried out. Large-caliber artillery often conducts ground-intensity firing tests at maximum range. Projectile spread on the ground is also the ground density of artillery shooting. It is the density of a group of projectiles scattered around the spread center. It is a key combat technical indicator of the artillery...

AI Technical Summary

Problems solved by technology

[0004] In the development process of the artillery weapon system, the problem of shooting intensity has been plagued by the rapid development of the artillery weapon system. The shooting intensity index often cannot meet the requirements of the combat technology index, and technical research needs to be organized, which not only increases the development cost but also prolongs the development of the artillery weapon system. The development cycle, these are one of the bottleneck issues restricting the development of artillery weapons

Although there is also high-speed photography technology that can test the spatial displacement of moving objects, it is not effective because it is easily interfered by the muzzle flame and smoke, especially when the smoke covers the gun.

High-speed photography technology is limited by pixels, and it is difficult to improve the accuracy of displacement testing

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