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Submarine-launched missile bionic warhead capable of weakening wave disturbance

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

Active Publication Date: 2020-08-18
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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  • Submarine-launched missile bionic warhead capable of weakening wave disturbance
  • Submarine-launched missile bionic warhead capable of weakening wave disturbance
  • Submarine-launched missile bionic warhead capable of weakening wave disturbance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] 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:

[0059] y=0.000004511*x^6+0.0003111*x^5-0.0082*x^4+0.1002*x^3-5949*x^2+1.029*x+5

[0060] Among them: 0≤x≤25mm;

[0061] 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:

[0062] 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.

[0063] Since d1=k1*(H 4 / 2-|H 4 / 2-H 3 |) / (|H 4 / 2-H 3 |+j1);

[0064] d2=k2*(H 4 / 2-|H 4 / 2-H 3 |) / (|H 4 / 2-H 3 |+j2),

[0065] Take d1=d2 here, that is, k1=k2=1 / 6, j1=j2=4.

[0066] Through simula...

Embodiment 2

[0068] 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:

[0069] y=0.000004511*x^6+0.0003111*x^5-0.0082*x^4+0.1002*x^3-5949*x^2+1.029*x+50

[0070] 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.

[0071] Since d1=k1*(H4 / 2-|H4 / 2-H3|) / (|H4 / 2-H3|+j1);

[0072] d2=k2*(H4 / 2-|H4 / 2-H3|) / (|H4 / 2-H3|+j2),

[0073] Take d1=d2 here, that is, k1=k2=1 / 6, j1=j2=4.

[0074] Through the simulation of CFD software, the m...

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Abstract

The invention discloses a submarine-launched missile bionic warhead capable of weakening wave disturbance, belonging to the technical field of submarine-launched missile design. The submarine-launchedmissile bionic warhead capable of weakening the wave disturbance consists of three parts of a conventional warhead front end and a warhead front end imitating the grooves on the head and back of a humpback whale, a warhead middle section, and a transition section of the missile body; the conventional warhead front end I has a smooth curved surface; the warhead middle section II is designed with bionic grooves based on the head and back shape of the humpback whale, and through the structure, not only the flying resistance of the missile body during flying can be reduced, but also the impact ofwaves on the missile body can be effectively weakened when the missile body is launched from the water and shot across the water into the air, so that the angle of the missile body in the process ofbeing launched out of water is reduced; therefore, the stability of the missile body launched from the water is improved, and the success rate of missile body launches is ultimately increased; and thewarhead end III is mainly used for connecting the missile body and playing a smooth transition function without increasing the flying resistance of the missile body.

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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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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