Adjustable Shaped Charge Body for Variable Penetration Depth
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Solution Overview
Problem
Existing shaped charge devices lack the ability to be precisely adapted to various materials and situations, requiring multiple pre-manufactured devices with different explosive characteristics, which is inefficient and impractical for applications like destroying sea mines or processing materials.
Innovation Solution
A spacer fitting element with a passage opening and a circumferential fitting surface, along with a shaped charge body and closure element that allows for adjustable explosive volume and pressure wave focus, enabling on-site customization of explosive characteristics without the need for multiple pre-produced devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple pre-manufactured shaped charge devices with different explosive characteristics are kept available, then the required tolerances for hole dimensions and penetration depths can be met, but the device complexity and inventory requirements increase
Solution Approach 1:
The invention introduces adjustable components (spacer elements, cylinder-closure assembly) that allow the explosive chamber volume to be dynamically adjusted on-site. This transforms a static, fixed-volume device into a dynamic, adjustable-volume device, enabling a single device to replace multiple pre-manufactured devices with different fixed volumes.
Solution Approach 2:
The invention changes the volume parameter of the explosive chamber by introducing spacer elements with different dimensions and adjusting the cylinder-closure assembly position. This allows precise control over explosive characteristics (penetration depth, hole dimensions) without manufacturing multiple devices with different fixed parameters.
2Reliability
If a sufficiently large shaped charge is used to guarantee destruction of a dud, then the reliability of dud destruction is improved, but the risk of pipeline destruction and environmental damage increases
Solution Approach 1:
The invention allows precise adjustment of the explosive chamber volume to match the specific requirements of each dud type. By adjusting the volume parameter, the explosive force can be optimized to achieve reliable dud destruction while minimizing excess force that could damage pipelines or cause environmental harm.
Solution Approach 2:
The invention enables customization of explosive characteristics for specific applications. Different spacer elements or cylinder-closure positions can be selected based on the specific dud type, providing locally optimized explosive force rather than using a universally large charge that causes collateral damage.
3Manufacturing precision
If different shaped charges with specific hole dimensions are mass-produced, then the required tolerances for hole dimensions can be met, but the productivity and efficiency decrease due to the need to keep multiple device types available
Solution Approach 1:
The invention creates a universal shaped charge device that can perform multiple functions by adjusting the explosive chamber volume. A single device design can produce different hole dimensions and penetration depths by changing the spacer element or cylinder-closure position, eliminating the need to maintain multiple specialized device types in inventory.
Solution Approach 2:
The invention transforms fixed-volume devices into adjustable-volume devices, enabling dynamic adaptation to different operational requirements. This allows rapid reconfiguration for different hole dimension requirements without manufacturing or retrieving different pre-made devices, significantly improving response efficiency.
4Length of moving object
If the quantity of explosives in a shaped charge is increased, then the penetration depth increases, but the adaptability to different materials and situations decreases
Solution Approach 1:
The invention allows the explosive quantity (chamber volume) to be adjusted as a variable parameter rather than a fixed design parameter. By selecting different spacer elements or adjusting the cylinder-closure position, the explosive volume can be precisely tuned to achieve the required penetration depth for each specific material or situation, maintaining high adaptability.
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
Enables precise adaptation of explosive devices to different materials and situations, reducing the need for multiple pre-manufactured devices and ensuring safe storage and transport by allowing defined explosive characteristics to be set on-site, thereby improving efficiency and versatility.
Implementation Method 1
a foot-side concave pressure wave reflection surface opposite the fitting surface with a reflection radius RR to one second focus, the first and second focus being formed on the foot side
Data Source
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AI summary
The invention relates to a hollow charge body comprising a receptacle for an expansion element (111), especially a metal insert, a cylinder (203) and a closure element (205), the cylinder and the closure element defining a chamber. Said chamber has an opening (257) so that any excess explosive present in the chamber is discharged when the cylinder and the closure element are adjusted relative to each other. The hollow charge body is configured in such a way that the chamber may produce at least two or more defined volume values.