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Variable thickness flyer plate for penetration device

A flying piece and energy-changing technology, which is applied in the direction of aerospace vehicles, space vehicle docking devices, space vehicle propulsion system devices, etc., can solve the problems of increasing explosion pressure and disadvantages

Active Publication Date: 2019-04-23
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the increased blast pressure is less favorable at higher standoffs (e.g. when the penetrating device is positioned farther from the target)

Method used

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  • Variable thickness flyer plate for penetration device
  • Variable thickness flyer plate for penetration device
  • Variable thickness flyer plate for penetration device

Examples

Experimental program
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Embodiment Construction

[0060] Implementations described herein relate to penetration devices with variable stiffness flyers. The penetrating device includes a housing that holds a propellant that, when triggered, propels the variable stiffness flyer toward the target. The propellant may comprise or correspond to a cylindrical or "pancake" charge, rather than a linearly shaped charge or a conical (eg, dome or curvilinear) shaped charge. An exemplary use case for penetration devices is in flight termination systems. Other exemplary use cases for penetrations include building penetrations, penetrations for non-flying vehicles, penetrations for pressure vessels, and penetrations for metallic objects.

[0061] The flight termination system employs one or more penetration devices by penetrating the propellant container surface and effecting pressure loss and propellant discharge, by cutting off the structural load path to cause the vehicle to rupture, cutting off the propellant supply to the engine, or a...

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PUM

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Abstract

A penetration device includes a casing, a propellant positioned in the casing, and a flyer plate. The flyer plate is coupled to the casing and adjacent to the propellant. The flyer plate includes a center portion having a substantially constant first thickness and includes a peripheral portion around the center portion and defining an edge. The peripheral portion tapers from the first thickness toa second thickness at the edge, where the second thickness is less than the first thickness.

Description

technical field [0001] The present disclosure generally relates to variable thickness flyer plates for penetration devices. Background technique [0002] Flight termination systems, such as those used in rocket-propelled vehicles or spacecraft, include penetrating devices and are designed to create holes in the skin of the rocket and sever the supporting structure to keep the rocket from propulsion. Forming holes through the skin of the rocket reduces the pressure of the rocket propellant and allows the rocket propellant to escape so that the rocket does not propel. [0003] The penetrating device creates a hole and severes the structure by advancing the flyer through the structure. Compared with flyers with compliant material or relatively thinner thickness, flyers with dense material or relatively larger thickness remain intact after impact and produce mainly shear failure with localized damage (e.g., piercing skin and structure) with less residual damage. Flyers with c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/40F42B15/00
CPCB64G1/401F42B15/00B64G1/64F42B1/02F42B10/48F42B39/20B64G1/402F42B12/06
Inventor 耶雷米·乔尔·阿尔贝特尼古拉斯·B·穆哈罗伯特·W·托马斯
Owner THE BOEING CO