Cylindrical Hollow Charge Flange for Angular Fragment Dispersal
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Solution Overview
Problem
Existing hollow charges primarily generate splinters in the direction of the sting, lacking the capability to effectively distribute splinters in an angular range, which limits their effectiveness as a penetrating and dispersing mechanism.
Innovation Solution
The introduction of a radially extending annular flange with numerous linear or figurative embossings and/or deformations, allowing fragments to be generated in various directions by controlling the pressure load from the explosive charge, with the option to incline or arrange the flange perpendicular to the longitudinal axis, creating a splinter circle around the spike.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a simple annular flange is used without embossings, then the device structure is simple, but splinters cannot be generated in angular directions
Solution Approach 1:
The flange is segmented into multiple embossings and deformations distributed around its circumference. Each embossing acts as an independent fragment generation point, enabling angular dispersal of splinters while maintaining a relatively simple overall flange structure.
Solution Approach 2:
The flange transitions from uniform simplicity to localized complexity through the strategic placement of embossings and deformations at specific locations. These local modifications create angular splinter generation capabilities without requiring the entire flange structure to be complex.
2Area of stationary object
If the flange is arranged perpendicular to the longitudinal axis, then splinters are generated in a circular pattern, but the splinter circle diameter is limited
Solution Approach 1:
The solution moves from a two-dimensional perpendicular arrangement to a three-dimensional inclined configuration. By tilting the flange at an angle to the longitudinal axis, the splinter generation pattern expands from a simple circle to a larger elliptical or circular pattern with increased diameter, utilizing the additional angular dimension.
Solution Approach 2:
The flange orientation angle is changed from 90 degrees (perpendicular) to a specific inclined angle. This parameter change in the flange's angular position relative to the longitudinal axis directly influences the splinter circle diameter, allowing optimization of the dispersal area.
3Adaptability or versatility
If multiple devices are arranged radially adjacent to create multiple splinter circuits, then the dispersal pattern is enhanced, but the device complexity increases
Solution Approach 1:
Multiple splinter-generating functions are merged into a single flange structure through the integration of multiple embossings and deformations. Instead of requiring separate radial devices, one flange with multiple localized features achieves the same multi-circuit dispersal pattern, reducing overall device complexity.
Solution Approach 2:
The flange is designed as a multi-functional element that simultaneously generates multiple splinter circuits through its various embossings and deformations. This single component performs the work of multiple separate devices, enhancing dispersal patterns while minimizing the number of individual components required.
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
This design enables the generation of splinters not only in the direction of the sting but also in an angular range, allowing for a controlled diameter and width of the splinter circle, enhancing the dispersal pattern and effectiveness of the hollow charge.
Implementation Method 1
due to the pressure acting on the shell and the flange from the inside, a material weakening occurs first, which leads to cracks
Implementation Method 2
these points turn out to be the points at which, due to the pressure acting on the shell and the flange from the inside, a material weakening occurs first, which leads to cracks
Implementation Method 3
A hollow charge has become known from US Pat. No. 4,474,113 A which, in addition to a shaped insert, an ignition device and an explosive charge, also has a casing surrounding the charge
Data Source
Figure 1
Figure 2
AI summary
The casing of a warhead with a shaped charge is extended by means of a flange surrounding the insert, which has devices for generating fragments, in such a way that the shaped charge emits a ring of fragments in addition to the spike in the direction of the target.