Architectural Mesh Air Flow Flaps Reduce Wind Loading

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Solution Overview

Problem

Architectural meshes that provide desired shading or privacy characteristics often result in high wind loading, which is undesirable for energy-efficient building designs requiring sun shading or privacy screening without compromising aesthetic appeal.

Innovation Solution

An architectural metal mesh panel with movable air flow flaps connected by clips to a flat wire mesh comprising U-shaped links and connecting rods, allowing for adjustable shading and privacy while reducing wind loading by enabling flap movement and easy installation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a tightly woven mesh is used to provide shading or privacy, then the aesthetic appearance and shading effectiveness are improved, but the wind loading increases

Engineering Contradiction:
Improveshading effectivenessVSAvoidwind loading
Core Design Contradiction:
Illumination intensityVSForce

Solution Approach 1:

The patent applies the dynamics principle by making the mesh panels movable rather than fixed. The mesh panels are suspended between horizontal rails and can move vertically along the rails, allowing them to dynamically adjust their position and orientation in response to wind conditions while maintaining shading effectiveness when needed

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent divides the facade into multiple separate mesh panels that can move independently. Each panel is a discrete unit suspended on its own rails, allowing individual panels to respond to local wind conditions rather than the entire facade moving as one rigid structure, thereby reducing overall wind loading

Inventive Principle:
Principle #1Segmentation

2Loss of information

If a tightly woven mesh is used to provide privacy screening, then the privacy effectiveness is improved, but the wind loading increases

Engineering Contradiction:
Improveprivacy effectivenessVSAvoidwind loading
Core Design Contradiction:
Loss of informationVSForce

Solution Approach 1:

The mesh panels can be positioned at different heights and angles along the vertical rails, allowing dynamic adjustment of the privacy screening level. When privacy is needed, panels can be moved to block views; when wind is strong, panels can be repositioned to reduce wind capture while maintaining adequate privacy

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system allows changing the effective parameters of the privacy screen by adjusting panel positions, spacing, and orientations. This enables the same physical mesh panels to provide different levels of privacy and wind resistance depending on environmental conditions and user requirements

Inventive Principle:
Principle #35Parameter changes

3Illumination intensity

If the mesh is made tighter to reduce light passage, then the shading performance is improved, but the structural complexity increases

Engineering Contradiction:
Improvelight blockingVSAvoidmesh structure complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

Rather than using one large complex tightly woven mesh, the system segments the shading function into multiple smaller mesh panels with varying degrees of openness. Each panel can have its own weave density optimized for specific areas, reducing the need for a uniformly tight complex structure across the entire facade

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different mesh panels can have different weave densities and patterns tailored to specific locations on the building. Areas requiring high shading can use tighter meshes, while areas needing more light can use more open patterns, allowing local optimization without requiring overall structural complexity

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3375951B1Architectural mesh with air flow flaps
Publication Date: 2020.09.09 CAMBRIDGE INTERNATIONAL INC
  • EP3375951B1 patent drawingFigure 1
  • EP3375951B1 patent drawingFigure 2~3
  • EP3375951B1 patent drawingFigure 4~5

AI summary

An architectural panel includes a mesh defining a plurality of openings and a plurality of flaps configured for attachment to the mesh within the plurality of openings, the flaps being movable to allow air flow through the openings.