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Projectile structure for controlling detonation stability in ram accelerator

An accelerator and projectile technology, applied in the field of detonation engines, can solve problems such as non-starting and unfavorable acceleration of projectiles, and achieve the effect of maximizing thrust

Pending Publication Date: 2020-09-01
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Then continuing to use the angle at a low Mach number will produce additional resistance and additional total pressure loss, which is not good for the acceleration of the projectile, and may even cause a non-starting phenomenon

Method used

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  • Projectile structure for controlling detonation stability in ram accelerator
  • Projectile structure for controlling detonation stability in ram accelerator
  • Projectile structure for controlling detonation stability in ram accelerator

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0016] combine figure 2 , a projectile structure for controlling detonation stability in a ram accelerator, the wedge structure of the detonation wave of the projectile structure includes a leading edge wedge surface and a trailing edge wedge surface, and the angle θ of the trailing edge wedge surface 2 Adjustable, the angle θ of the wedge surface on the leading edge 1 fixed.

[0017] Further, combine image 3 , the trailing edge wedge surface includes a trailing edg...

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Abstract

The invention discloses a projectile structure for controlling detonation stability in a ram accelerator. The wedge surface structure of a detonation wave of the projectile structure comprises a front-edge inclined wedge surface and a rear-edge inclined wedge surface, and the angle of the rear-edge inclined wedge surface is adjustable. The rear-edge inclined wedge surface is connected with a spring or a reed, and the stretch or deformation of the spring or the reed can change the angle of the rear-edge inclined wedge surface. The larger the mach number is, the smaller the angle of the rear-edge inclined wedge surface is. The angle of the rear-edge inclined wedge surface is adjustable and can be adjusted adaptively with mach number change. The larger the mach number is, the smaller the angle of the rear-edge inclined wedge surface is. Thus, the detonation is stood at the optimal position, and thrust is maximized.

Description

technical field [0001] The invention belongs to the technical field of detonation engines, and in particular relates to a projectile structure for controlling detonation stability in a ram accelerator. Background technique [0002] The ram accelerator can accelerate the projectile to a speed of several kilometers per second or even tens of kilometers per second, which is a speed that cannot be achieved by traditional gunpowder burning propelled projectiles. However, the ram accelerator has a fatal weakness, that is, it does not start. The traditional projectile design such as figure 1 As shown, the slope of the projectile head is straight, and the slope angle is fixed once determined. Therefore, the slope angle that can stabilize the detonation at low Mach numbers will be too sufficient for high Mach numbers, that is, when the projectile accelerates to high Mach numbers, only a smaller angle is actually needed. Then continuing to use the angle at a low Mach number will pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41F1/00
CPCF41F1/00
Inventor 张小兵秦琼瑶
Owner NANJING UNIV OF SCI & TECH
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