Aircraft Aerodynamic Wall De-Icing Using Heating and Elastic Deformation

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Solution Overview

Problem

Existing de-icing systems for aircraft aerodynamic walls are energy-intensive and inefficient, particularly due to the continuous coverage and long activation times of resistive mats and the increased weight and energy consumption of vibration generators.

Innovation Solution

A dual de-icing method using a first system for elastic deformation and a second system for localized heating, where the activation of the second system segments ice into smaller blocks, optimizing the effectiveness of the first system and reducing energy consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an electric de-icing system with resistive mats is used to cover the entire surface area of the aerodynamic wall, then de-icing effectiveness is improved, but energy consumption increases significantly

Engineering Contradiction:

Improvede-icing effectivenessVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The aerodynamic wall is divided into multiple heating zones with independent resistive mats, allowing selective activation of only the zones where ice formation is detected or expected. This segmentation enables the system to maintain de-icing effectiveness while reducing overall energy consumption by avoiding continuous heating of the entire surface area.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The electric de-icing system operates in periodic cycles rather than continuously. The control unit activates heating zones based on detected ice conditions, alternating between active heating phases and standby phases. This periodic operation maintains de-icing reliability while significantly reducing energy consumption compared to continuous operation.

Inventive Principle:

Principle #19Periodic action

2Reliability

If vibration generators are positioned close together to effectively detach ice clusters, then de-icing effectiveness is improved, but device weight and complexity increase

Engineering Contradiction:

Improveice detachment effectivenessVSAvoidnumber of vibration generators

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The mechanical de-icing function is divided between multiple distributed vibration generators and elastic deformable zones of the aerodynamic wall itself. The wall structure is designed with specific elastic properties that allow it to amplify vibration effects across larger areas, reducing the need for densely packed vibration generators while maintaining effective ice detachment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The aerodynamic wall structure serves as an intermediary between the vibration generators and the ice clusters. The wall's elastic properties and geometric design amplify and transmit vibration energy from the generators to the ice, enhancing detachment effectiveness without requiring additional vibration generators to be positioned close together.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If the aerodynamic wall is designed with elastic deformability to enable mechanical de-icing, then de-icing effectiveness is improved, but structural strength may be compromised

Engineering Contradiction:

Improvemechanical de-icing capabilityVSAvoidstructural strength

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The aerodynamic wall is designed with localized elastic deformable zones specifically positioned where ice formation occurs, while maintaining high structural strength in other critical areas. This local quality differentiation allows the wall to exhibit elastic behavior only where needed for mechanical de-icing, preserving overall structural integrity and strength.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The aerodynamic wall incorporates composite material structures that combine high-strength materials with elastic components. These composite constructions provide both the structural strength required for flight loads and the localized elastic deformability needed for effective mechanical de-icing through vibration-induced movements.

Inventive Principle:

Principle #40Composite materials

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 dual de-icing method effectively segments ice into manageable blocks, reducing the energy required for detachment and enhancing the efficiency of the de-icing process while minimizing energy consumption.

Implementation Method 1

the second de-icing system, different from the first de-icing system, configured to generate at least a localized heating on the outer face of the aerodynamic wall

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Implementation Method 2

the first de-icing system configured to generate at least one elastic deformation of the aerodynamic wall

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS12612166B2Method for de-icing an aerodynamic wall using at least two different de-icing systems, aircraft equipped with a de-icing device making it possible to implement said method

Publication Date: 2026.04.28 AIRBUS OPERATIONS (SAS)

AI summary

A method for de-icing an aerodynamic wall of an aircraft, the method comprising activation of a thermal de-icing system configured to generate at least a localized heating on the outer face of the aerodynamic wall and activation of another de-icing system by elastic deformation configured to deform the aerodynamic wall. Also an aircraft equipped with a de-icing device.