High-overload-resistant projectile for gas detonation driven ultra-high-speed launcher

Abstract

The invention belongs to the technical field of ultra-high-speed collision research, and aims to provide a high-overload-resistant projectile for a gas detonation driven ultra-high-speed launcher to solve the problem that a traditional projectile structure cannot meet the requirement of bearing higher overload in the acceleration process. The high-overload-resistant projectile comprises a flying body and a combined projectile support structure, an anti-wear projectile support is in interference fit with a launching tube, a containing cavity is formed in the anti-wear projectile support, an anti-overload projectile support is installed in the containing cavity, and the flying body is installed at the front end of the anti-overload projectile support. The high-overload-resistant projectile is scientific and reasonable in design, safe and convenient to assemble, and capable of effectively relieving the wear problem of the launching tube in the launching process, so that the service life of a launching system is prolonged; and the anti-overload projectile support can meet the anti-overload condition, meanwhile, the machining difficulty is low, the gravity center of the flying body moves forwards, the stability of trajectory flight outside the flying body is improved, the friction resistance of the surface of the flying body is reduced, and the speed storage performance of the flying body is improved. The high overload resistance of the projectile is verified through experiments.

Description

technical field [0001] The invention belongs to the technical field of ultra-high-speed collision research, and in particular relates to an anti-high overload projectile for a gas detonation-driven ultra-high-speed launching device. Background technique [0002] In the field of ultra-high-speed collision research, when the ultra-high-speed flying damage element acts on the target body, the damage form and energy dissipation mechanism will be completely different from those under low-speed conditions: the coupling mechanism of the missile-target interface is no longer simple. The erosion effect of the rigid projectile on the target is transformed into a complex process related to the density, strength, adiabatic shear strain rate, characteristic thickness of the adiabatic shear band, and phase transition characteristics of the projectile and the target. Therefore, in order to meet the major strategic needs of the country's anti-armor field, it is necessary to study the damage...

AI Technical Summary

Problems solved by technology

However, the high initial velocity also means that the damage element needs to withstand higher overload during the acceleration process, with a peak value of more than 120,000 g. The traditional projectile structure can no longer meet the strength requirements under this overload condition.

If the design is not proper, the projectile will be damaged during the movement in the chamber, which will significantly reduce the launch efficiency and service life of the detonation drive system

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