Surface Texturing for Fluid Interaction Control

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Solution Overview

Problem

Existing surface texturing methods fail to effectively tailor fluid and energy interactions, leading to issues like icing, contamination, fogging, corrosion, and biofouling across various devices, and often involve coatings that are prone to wear and have low heat tolerance.

Innovation Solution

A system and method for designing application-specific surface textures using a computing device that combines pre-solved solution surfaces based on behavior input data, discrete input data, and continuous input data to determine an optimized surface texture, which is applied without penetrating the substrate, thus maintaining its structural properties and allowing for re-texturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional surface texturing methods are used, then surface modification is achieved, but the surface is prone to wear and has low heat tolerance

Engineering Contradiction:
Improvesurface durabilityVSAvoidwear and heat damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary action by pre-texturing the substrate surface before applying the coating layer. The surface texturing is created in advance using methods such as laser texturing, chemical etching, or mechanical polishing, establishing a robust structural foundation that resists wear and heat damage before the functional coating is applied.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent employs composite materials by combining a textured substrate with a functional coating layer. The substrate provides mechanical strength, wear resistance, and heat tolerance, while the coating layer provides the desired surface properties such as hydrophobicity, hydrophilicity, or low friction. This composite structure achieves both durability and functional performance.

Inventive Principle:
Principle #40Composite materials

2Object-affected harmful factors

If surface texturing is applied to manage fluid interactions, then fluid management improves, but the substrate structural properties may be compromised

Engineering Contradiction:
Improvefluid interaction issuesVSAvoidsubstrate structural integrity
Core Design Contradiction:
Object-affected harmful factorsVSStrength

Solution Approach 1:

The surface texturing is performed as a preliminary step before coating application, using controlled methods such as laser texturing or chemical etching that modify only the surface topology without compromising the bulk structural properties of the substrate. This preliminary surface preparation enables improved fluid management while preserving substrate strength.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The texturing creates local surface variations with specific geometries (such as micro-pits, ridges, or patterns) that are optimized for fluid management functions. These local modifications are confined to the surface layer and do not affect the overall structural integrity of the substrate, achieving functional improvement without global structural compromise.

Inventive Principle:
Principle #3Local quality

3Ease of manufacture

If a single surface texture is applied, then manufacturing is simplified, but the surface cannot be re-textured or adapted for different applications

Engineering Contradiction:
Improvetexturing process simplicityVSAvoidre-texturing capability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The surface treatment is segmented into two independent stages: first, a universal texturing process is applied to the substrate to create a robust structural foundation; second, a functional coating layer is applied that can be independently modified or removed. This segmentation allows the substrate texture to remain while enabling re-texturing or coating replacement for different applications.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system enables dynamic adaptation by allowing the functional coating layer to be modified, removed, or replaced while the underlying substrate texture remains intact. This dynamic approach provides versatility for different applications without requiring re-manufacturing of the substrate, balancing manufacturing simplicity with adaptability.

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 optimized surface texture effectively manages fluid and energy interactions, preventing issues like icing and biofouling while maintaining the substrate's structural integrity and allowing for re-use, offering a more robust solution compared to conventional methods.

Implementation Method 1

The optimized surface texture changes a contact angle between a fluid and the surface

Methodology Applied
Scientific EffectContact angle modification: Wetting

Data Source

PatentUS10726172B2Systems and methods to achieve tailored fluid and energy interaction through surface texturing
Publication Date: 2020.07.28 HARRIS CORP
  • US10726172B2 patent drawing
  • US10726172B2 patent drawing
  • US10726172B2 patent drawing

AI summary

Systems and methods for tailoring fluid and energy interaction through surface texturing. The methods comprise: receiving behavior input data specifying known or modeled interactions between a material and pre-solved solution surfaces, discrete input data specifying parameters of a surface to be textured, and continuous input data specifying ranges of values for environmental characteristics that the surface is to be subjected to during use; transforming the behavior input data into a composite response surface comprising a weighted combination of the pre-solved solution surfaces generated based on the discrete input data and the continuous input data; determining an optimized surface texture for the surface based on the composite response surface and desired behavior data specifying a desired interaction between the material and the surface to be textured; and outputting the optimized surface texture (e.g., to a surface texturing machine) so that the optimized surface texture is applied to the surface.