Reactive Protection Arrangement for Shaped Charge Jet Disruption
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Solution Overview
Problem
Current reactive protection systems are ineffective against shaped charges due to high penetration capacity, requiring significant additional weight and explosives, which cause lateral damage and restrict mobility in lighter vehicles, and are limited by the stress of the reactive system itself.
Innovation Solution
A reactive protective arrangement with a partially covered explosive surface, featuring a reactive middle layer inclined towards the threat, bounded by front and rear covers, utilizing all-round damming to minimize detonation area and accelerate protective elements to high speeds for effective disruption of shaped charge jets with minimal lateral damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional reactive protection systems are used to protect against shaped charges, then protection effectiveness is improved, but vehicle weight and explosives mass increase significantly
Solution Approach 1:
The reactive protective layer is divided into multiple independent reactive fields, each capable of being detonated separately. This segmentation allows only the specific area under threat to detonate, rather than requiring full-area coverage with explosives, thereby reducing total explosives mass and vehicle weight while maintaining protection effectiveness.
Solution Approach 2:
The protective system implements local quality by providing reactive protection only where needed - specifically in the reactive fields that are actually threatened. The damming structures confine the explosive effect to local areas, allowing the vehicle to have reduced explosives mass overall while maintaining adequate protection at critical locations.
2Area of stationary object
If large areas of explosives are used in reactive protection systems, then protection coverage is improved, but lateral damage and environmental pollution increase
Solution Approach 1:
The protective surface is divided into multiple discrete reactive fields separated by damming structures. When threatened, only the specific reactive field under attack detonates, confining the explosive effect locally. This prevents lateral damage to surrounding areas and reduces environmental pollution compared to large-area explosive coverage.
Solution Approach 2:
The damming structures, which could be seen as limiting the explosive effect, actually convert potential harmful lateral damage into beneficial localized protection. The confinement structures redirect the explosive energy precisely where needed to disrupt the shaped charge jet, transforming what would be harmful collateral damage into effective localized protection.
3Reliability
If multi-layered and strongly inclined reactive protective structures are used, then jet disturbance effectiveness is improved, but structure depth and construction mass increase
Solution Approach 1:
The reactive protective elements are designed to be dynamically accelerated by detonation rather than being static. The inclined reactive fields, when detonated, accelerate protective elements at high speeds to disrupt the shaped charge jet. This dynamic approach achieves effective jet disturbance without requiring the same structural depth as static multi-layered configurations.
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 solution achieves high effectiveness with reduced explosive mass, minimal lateral damage, and increased mobility, allowing for multi-hit capability and flexible adaptation to vehicle surfaces, while using insensitive explosives to prevent accidental ignition and reduce environmental impact.
Implementation Method 1
all-round damming for the reactive occupancy/partial occupancy of the protective area (occupation of the explosives area or explosives field)
Implementation Method 2
The ignition of both layers creates shock waves and reaction gases and accelerates both towards and towards the penetrating threat
Implementation Method 3
The ignition of both layers creates shock waves and reaction gases and accelerates both towards and towards the penetrating threat
Implementation Method 4
Since the early 1970s, arrangements have been known to react against both shaped charges and kinetic energy projectiles, in which pyrotechnically accelerated elements laterally disrupt or deflect the impinging or penetrating threat, thereby reducing the penetration capacity.
Data Source
Figure 1~4C
Figure 5~7
Figure 8~13
AI summary
The invention relates to a reactive protection arrangement for protecting stationary or moving objects (1) against threats (3) by hollow charges, projectile-forming charges, or kinetic energy penetrators is or can be rigidly or movably attached to a side of the object (1) to be protected facing the threat (3) and contains at least one protective surface (4) arranged at an inclination angle (2) from the threat direction. Said protective surface (4) has a front cover (5), which faces the threat (3), and a rear cover (9, 10), which faces away from the threat (3) and is arranged at a distance from the front cover (5) and is preferably designed as a bulging arrangement. Between said two covers (5, 9, 10) is at least one stationary or movable reactive middle layer or reactive zone (11), which has at least two reactive sub-areas (4A) each having at least one explosive-substance field (7), wherein the reactive sub-areas (4) are plugged on all sides by the bounding covers (5, 9, 10) and by lateral separating layers (8).