Shaped Charge with Pyrogenic Material for Aeronautical Stage Separation
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Solution Overview
Problem
Conventional shaped charges lack enhanced performance for specific industrial and aeronautical applications, particularly in separating stages of aeronautical crafts, due to limited thermal and mechanical effects for efficient penetration and separation.
Innovation Solution
Incorporation of a pyrogenic material, such as thermite or nanothermites, between the explosive charge and the projection coating in a V-shaped concave surface, which generates heat and enhances the jet's thermal effect upon detonation, allowing for improved penetration and separation by melting the target material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional shaped charges are used for separating aeronautical stages, then the basic cutting function is achieved, but the thermal effect is insufficient for efficient penetration and separation
Solution Approach 1:
The patent combines the explosive charge with pyrogenic material (thermite or nanothermites) in a single composition, merging the mechanical cutting action with intense thermal effects to achieve both penetration and separation of aeronautical stages
Solution Approach 2:
The shaped charge uses a composite material containing explosive charge mixed with pyrogenic material, creating a multi-functional substance that produces both shock wave and intense heat for enhanced cutting and separation performance
2Productivity
If pyrogenic material is added to enhance thermal effect, then penetration and separation efficiency improve, but device complexity increases
Solution Approach 1:
The pyrogenic material is merged with the explosive charge into a single composite composition, eliminating the need for separate material layers and simplifying the overall device structure while maintaining enhanced functionality
Solution Approach 2:
The composite charge material serves multiple functions simultaneously: it provides the shock wave for initial penetration, generates intense heat for melting and separation, and maintains structural integrity, reducing the need for additional specialized components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The use of pyrogenic materials increases the thermal effect of the jet, enabling more efficient penetration and separation of materials, particularly in aeronautical applications by effectively melting and severing connections, thereby enhancing the performance of shaped charges in industrial and military contexts.
Implementation Method 1
a pyrogenic material, that is, a heat generating material, is used, for heating the projection material coating
Implementation Method 2
The explosive charge 2 is thus triggered and comes into a detonation regimen. A wave is then propagated in the entire explosive bulk of the explosive charge 2
Implementation Method 3
Because of the V hollow shape of the surface 2B of FIG. 1, an energy concentration is produced in the axis of the shaped charge and in particular at the bottom of the V of the surface 2B of the explosive charge 2
Implementation Method 4
the pyrogenic material being placed in front of an inner surface of the connecting part... increases the thermal effect of the jet, enabling more efficient penetration and separation of materials, particularly in aeronautical applications by effectively melting and severing connections
Data Source
AI summary
A shaped charge comprising a containment shell, an explosive charge placed in the containment shell and having a V-shaped surface, a fuse placed behind the explosive charge, and a layer of projection material placed in front of the V-shaped surface of the explosive charge. A layer of pyrogenic material is used for heating the projection coating. This pyrogenic material can also be mixed with the explosive charge.