Rotatable Projectile Guiding Kit with Segmented Generators

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Solution Overview

Problem

Existing guiding warheads for projectiles are complex and cumbersome due to the integration of mechanical, electronic, and ignition elements, requiring strict handling and safety measures, and there is a need for a design that separates the explosive and guiding components for improved safety and ease of installation.

Innovation Solution

A guiding kit with a front and rear part rotatably connected via bearings, featuring a first electric generator with separate parts to provide power to the front part and an independent second electric generator for the rear part, ensuring complete electrical separation and allowing for easy installation of the fuze element before use, with a transceiver unit for signal transmission and a receiver port for communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mechanical, electronic and ignition elements are assembled together in a common container, then the guiding warhead can function as an integrated unit, but handling becomes complicated and requires strict safety measures compatible with explosives

Engineering Contradiction:
Improvefunctional integrationVSAvoidhandling complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The warhead is divided into two separate parts: a front part containing mechanical and electronic guiding elements, and a rear part containing the ignition fuze element. These parts are connected via a coupling mechanism that allows them to be separated during handling and assembled before firing. This segmentation eliminates the need to handle complete explosive assemblies during storage and maintenance, reducing safety risks while maintaining functional integration when needed.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the fuze element is inseparable from mechanics and electronics units during storage and conveying, then the guiding warhead maintains complete functionality, but handling becomes cumbersome and imposes strict safety measures

Engineering Contradiction:
Improvefunctional completenessVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system is segmented into modular components (front part with electronics, rear part with fuze) that can be independently handled and stored. A coupling mechanism enables simple assembly of these modules before firing, ensuring functional completeness only when needed while simplifying handling during storage and conveyance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The front and rear parts are pre-configured with alignment features and coupling mechanisms that enable quick and reliable assembly before firing. This preliminary preparation ensures that when the parts are assembled, they automatically achieve proper functional integration without requiring complex assembly procedures.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If front part spins free of rear part about common longitudinal axis, then aerodynamic control is improved, but electrical connection between spinning and non-spinning parts becomes difficult

Engineering Contradiction:
Improveaerodynamic controlVSAvoidelectrical connection complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A universal coupling mechanism serves as an intermediary between the spinning front part and non-spinning rear part. This coupling includes electrical contacts that can accommodate relative rotation while maintaining electrical connection. The coupling mechanism translates the rotational freedom needed for aerodynamic control into a form that preserves electrical connectivity for signaling and power transmission.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 simplifies handling and maintenance by separating the explosive and guiding components, enabling safe and easy installation of the fuze element, and provides improved heat separation for enhanced safety and reliability, allowing for easy testing and operation without destroying the guiding kit.

Implementation Method 1

a first electric generator (340) having a first part (344) and a second part (342), and wherein the first electric generator (340) is configured to provide electrical energy to the front part (320) of the guiding kit

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a second electric generator (317) having a first part and a second part, the second electric generator configured to provide electrical energy to the rear part of the guiding kit (310)

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 3

the front part (320) and the rear part (310) are rotatably connected to each other via a set of bearings (350) adapted to enable relative spinning of the front and rear parts about a common central longitudinal axis of rotation (300A)

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3671102B1Guiding kit for projectile
Publication Date: 2022.11.02 ELBIT SYST ROKAR LTD
  • EP3671102B1 patent drawingFigure 1A~1B
  • EP3671102B1 patent drawingFigure 2A~2B
  • EP3671102B1 patent drawingFigure 3

AI summary

A guiding kit for guiding a projectile to a target comprises a front part and a rear part. The front part and the rear part are rotatably connected to each other to enable relative rotation about a common central longitudinal axis of rotation. The front part comprises a front transceiver (T/X) unit that is disposed next to the rear end of the front part and coinciding with the longitudinal central axis of rotation and adapted to transmit signals towards the rear part. A rear transceiver unit is disposed against the front transceiver unit and adapted to communicate with front transceiver unit when the front part and the rear part are rotating with respect to each other.