Reactive Armor Multi-Stage Detonation for Tandem Warheads

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Solution Overview

Problem

Current reactive armor systems are ineffective against tandem missiles, as they cannot survive the first detonation stage and disrupt the secondary detonation effectively, leaving the tank vulnerable to subsequent hits.

Innovation Solution

A reactive armor unit with multiple explosion centers, including a first and second explosion center configured with a predetermined distance between them, and optionally a third explosion center, utilizing a shield element and movable elements to extend or retract for optimal positioning, along with a trigger mechanism and delay mechanism to ensure timely disruption of the tandem missile's pressure wave and structural integrity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional reactive armor with single explosion center is used, then the armor can disrupt single-stage HEAT rounds, but it cannot effectively survive the first detonation stage and disrupt the second detonation of tandem missiles

Engineering Contradiction:
Improveprotection effectiveness against tandem missilesVSAvoidarmor structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The reactive armor is divided into multiple independent explosion centers (first explosion center and second explosion center) positioned at predetermined distances from each other. Each explosion center can be independently triggered to create separate detonation events, allowing the armor to counter different stages of the tandem missile threat separately.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The first explosion center is positioned and configured to detonate first, creating a preliminary explosion that disrupts the incoming tandem missile before the second stage detonates. This preliminary action modifies the threat environment for the subsequent second explosion center to then disrupt the second stage detonation.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If multiple explosion centers are added to counter tandem missiles, then protection effectiveness improves, but the armor unit size and structural complexity increase

Engineering Contradiction:
Improvesurvival capability through first detonation stageVSAvoiddistance between explosion centers
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The armor unit incorporates movable elements that can extend and retract to adjust the distance between the first explosion center and the second explosion center. This dynamic adjustment allows the system to optimize the spacing between explosion centers based on threat conditions while maintaining a compact stowed configuration when not in use.

Inventive Principle:
Principle #15Dynamics

3Reliability

If explosion centers are positioned at predetermined distances, then disruption effectiveness against tandem missile stages is optimized, but the armor unit requires extended dimensions

Engineering Contradiction:
Improvedisruption of pressure wave formationVSAvoidoverall armor unit length
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

Movable elements with extend and retract capabilities are used to position the second explosion center at the optimal predetermined distance from the first explosion center only when needed for operation. When retracted, these elements minimize the overall length of the armor unit, resolving the conflict between operational effectiveness and stowed compactness.

Inventive Principle:
Principle #15Dynamics

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 reactive armor unit effectively survives the first detonation stage and disrupts the secondary detonation of tandem missiles, providing enhanced protection by creating timed and directed explosions that minimize interference between blasts and optimize disruption of the incoming warhead's energy.

Implementation Method 1

A reactive armor unit may react to an incoming projectile by providing timed and/or directed explosions that allow the reactive armor to survive the first detonation stage and to disrupt the second detonation

Methodology Applied
Scientific EffectExplosion: Explosion

Implementation Method 2

at least one of the predetermined delays is selected to ensure that at least one of the explosion centers is timed to explode at a time suitable for disruption of pressure wave formation or structural integrity of a secondary detonation

Methodology Applied
Scientific EffectDetonation: Detonation

Data Source

PatentUS11512930B2Reactive armor
Publication Date: 2022.11.29 COHEN(IL)
  • US11512930B2 patent drawing
  • US11512930B2 patent drawing
  • US11512930B2 patent drawing

AI summary

A reactive armor unit has a first explosion center and a second explosion center, the unit being configured with a predetermined distance between the first and the second explosion centers.