Ammunition with head capable of deflecting and based on smart material driver

A technology of intelligent material and driver, applied in the direction of ammunition, warhead, weapon accessories, etc., can solve the problems of reduced deformation efficiency, bulky structure, complex structure, etc., and achieve the effect of wide attack range, compact overall structure and large output displacement.

Active Publication Date: 2013-05-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex structure, low reliability, bulky structure, reduced deformation benefit, complex brake transmission system, low power-to-weight ratio, and difficulty in achieving continuous smooth de

Method used

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  • Ammunition with head capable of deflecting and based on smart material driver
  • Ammunition with head capable of deflecting and based on smart material driver
  • Ammunition with head capable of deflecting and based on smart material driver

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1

[0031] like Figure 1-2 As shown, the external aerodynamic layout of the projectile in this design refers to the external structure of the PF89 individual rocket. , The projectile body 2 and the projectile tail 3 are cylindrical, wherein the projectile 1 and the projectile body 2 are connected by a universal joint to realize the free deflection of the projectile, and the projectile body 2 and the projectile tail 3 are connected by threads, and can be disassembled if necessary. This design can be applied to various missile ammunition structures in practice. After the lower end of the outer wall of the bullet 1 has four guide grooves 11 passing through the center of the bullet, four through holes 12 are formed on the outer wall, and a spherical groove 6 is formed on the center of the bottom surface of the bullet 1. The groove 6 It communicates with the four guide grooves 11; a spherical protrusion 8 corresponding to the spherical groove 6 is provided on the ...

Example Embodiment

[0032] Example 2

[0033] exist image 3 In order to realize the deflection of the first part of the projectile, the amplifying driver installed in the projectile body needs to provide driving force and driving displacement. The ammunition also includes three smart material drivers 9, and the three smart material drivers 9 are installed in the projectile body 2, and the smart material drivers 9 include piezoelectric materials 14, amplifying mechanisms 15 and casings 13, and the piezoelectric materials 14 One end is fixed in the housing 13 after being pre-tightened by the pre-tightening screw 16. The amplifying mechanism 15 is annularly distributed around the piezoelectric material 14. The amplifying mechanism is hinged with the housing 13 through three hinge screws 17. The other end of 14 is connected, the other end of the amplification mechanism 15 is the output end 10 of the smart material driver 9 and is located outside the casing 13, the output end 10 of the smart materia...

Example Embodiment

[0036] Example 3

[0037] This embodiment is the same as Embodiment 2, except that the smart material is a magnetostrictive material.

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Abstract

Disclosed is ammunition with a head capable of deflecting and based on a smart material driver. The ammunition with the head capable of deflecting and based on the smart material driver comprises an ammunition head, an ammunition body, a smart material driver and a positioning system. The main body part of the ammunition is connected with a spherical protrusion of the surface on the upper end of the ammunition body through a spherical groove at the bottom of the ammunition head; four guide grooves are formed at the bottom of the ammunition head, wherein the guide grooves penetrate through the center of the circle of the ammunition head and are communicated with the spherical groove; sealing pins, springs and rolling balls are placed in the guide grooves to fasten connecting portions; under the impact of certain electrical signals, the smart material driver is deformed through information fed back by the positioning system to put the ammunition head to deflect, and therefore changing of motion locus of the ammunition is achieved. The ammunition with the head capable of deflecting and based on the smart material driver is large in deflection angle and is finally wide in attack ranges, reduces consumption of smart materials, saves space capable of placing a microprocessor and a small-size power supply, is compact in the whole structure, and therefore achieves microminiaturization, high accuracy and low energy consumption of independent and self-adaptation attack ammunition.

Description

technical field [0001] The present invention relates to a head deflectable ammunition based on a smart material actuator. Background technique [0002] Nowadays, the guidance and control mechanism of the electromechanical mechanism has been widely used in precision strike ammunition, and has achieved good results. Its application has promoted the development of ammunition from uncontrolled to simplified control, and then to today's guided. However, due to the complex structure, low reliability, bulky structure, reduced deformation benefit, complex brake transmission system, low power-to-weight ratio, and difficulty in achieving continuous smooth deformation, these electromechanical mechanisms require novel design concepts and It is conceived to realize the miniaturization, high precision and low energy consumption of highly autonomous and adaptive attack ammunition. [0003] At present, the posture control control methods that people can use are: [0004] (1) Using micro-s...

Claims

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Application Information

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IPC IPC(8): F42B12/02F42B15/01
Inventor 冷劲松刘彦菊黄剑阳张国旗徐航宇恩松范稀木孙健
Owner HARBIN INST OF TECH
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