A bionic warhead for submarine-launched missiles that can weaken wave disturbance

A technology of warheads and missiles, which is applied in the direction of warheads, ammunition, projectiles, etc., can solve the problems of missile instability, crash, missile flight attitude deflection, etc., and achieve the goal of reducing wave force, reducing pressure difference, and uniform distribution of pressure field Effect

Active Publication Date: 2021-07-02
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when the missile is close to the water surface, it will be strongly disturbed by the waves, which will cause a large deflection of the missile's flight attitude, and even eventually cause the missile to lose stability and crash.

Method used

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  • A bionic warhead for submarine-launched missiles that can weaken wave disturbance
  • A bionic warhead for submarine-launched missiles that can weaken wave disturbance
  • A bionic warhead for submarine-launched missiles that can weaken wave disturbance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A missile model loaded with a bionic grooved warhead such as image 3 As shown, in the model, H=50mm, H2=2.5mm, H1=5mm, the contour line f, m and g are combined into a complete contour curve to figure 1 The midpoint o is the origin, os is the positive direction of the x-axis, op is the positive direction of the y-axis, then the equation of the contour curve is:

[0053] y=0.000004511*x^6+0.0003111*x^5-0.0082*x^4+0.1002*x^3-5949*x^2+1.029*x+5

[0054] Among them: 0≤x≤25mm;

[0055] The contour dimensions of the section at H3 from the bottom H3 of the middle section II of the warhead with the bionic groove are as follows:

[0056] n=40, and take θ1=θ2=4.5°, meanwhile θ1 and θ2 determine the size of d1 and d2, and the size of D2 is determined by the outline m.

[0057] Since d1=k1*(H 4 / 2-|H 4 / 2-H 3 |) / (|H 4 / 2-H 3 |+j1);

[0058] d2=k2*(H 4 / 2-|H 4 / 2-H 3 |) / (|H 4 / 2-H 3 |+j2),

[0059] Take d1=d2 here, that is, k1=k2=1 / 6, j1=j2=4.

[0060] Through simula...

Embodiment 2

[0062] A missile model loaded with a bionic grooved warhead such as image 3 As shown, in the model, H=50mm, H2=2.5mm, H1=5mm, the contour line f, m and g are combined into a complete contour curve to figure 1 The midpoint o is the origin, os is the positive direction of the x-axis, op is the positive direction of the y-axis, then the equation of the contour curve is:

[0063] y=0.000004511*x^6+0.0003111*x^5-0.0082*x^4+0.1002*x^3-5949*x^2+1.029*x+50

[0064] Among them: 0≤x≤25mm. Among them, the contour dimension of the section at H3 from the bottom of the middle section II of the warhead with the bionic groove is as follows: n=40, and θ1=θ2=4.5°, while θ1 and θ2 determine the size of d1 and d2, and the size of D2 is determined by the shape The profile m decides.

[0065] Since d1=k1*(H4 / 2-|H4 / 2-H3|) / (|H4 / 2-H3|+j1);

[0066] d2=k2*(H4 / 2-|H4 / 2-H3|) / (|H4 / 2-H3|+j2),

[0067] Take d1=d2 here, that is, k1=k2=1 / 6, j1=j2=4.

[0068] Through the simulation of CFD software, the m...

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Abstract

A bionic warhead of a submarine-launched missile that can weaken wave disturbance belongs to the technical field of submarine-launched missile design. The invention consists of three parts: the front end of the conventional warhead, the front end of the warhead imitating the groove on the back of the humpback whale head, the middle section of the warhead and the transition section of the missile body. The front end I of the conventional warhead has a smooth curved surface; the middle section II of the warhead is designed with bionic grooves based on the shape of the back of the humpback whale head. This structure can not only reduce the flight resistance of the projectile during flight, but also In the process of launching from the water and shooting across the water surface into the air, it can effectively weaken the influence of waves on the projectile, so as to reduce the turning angle of the projectile in the process of exiting the water, thereby improving the stability of the projectile in the water, and finally making the launch of the projectile easier. The success rate is improved; the warhead end III is mainly used to connect the projectile and make a smooth transition without increasing the flight resistance of the projectile.

Description

technical field [0001] The invention belongs to the technical field of submarine-launched missile design, in particular to a bionic warhead of a submarine-launched missile capable of weakening wave disturbance. Background technique [0002] Submarine-launched ballistic missiles are the most critical pole of the Trinity's strategic forces. They have better mobility, concealment, and survivability. They are important weapons for the second nuclear strike capability and the top priority for countries to develop nuclear deterrence forces in the future. Submarine-launched missiles are launched across the two media of water and air, and go through the stages of exiting the barrel, navigating in the water, and exiting the water in a short period of time. There are complex force changes in the process. At present, nuclear powers, including my country, have many failure records in submarine-launched missile tests. One of the important reasons is that during the launching process of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42B15/20F42B12/02
CPCF42B12/02F42B15/20
Inventor 张成春孙金焕孙潇伟杜天宇韩志武任露泉
Owner JILIN UNIV
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