Twisted Hollow Aluminum Sheet Assembly for Uniform Gradient Facades
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Solution Overview
Problem
Traditional methods for processing and mounting twisted aluminium sheets for architectural decoration face challenges such as uneven deformation, stress concentration, and irregular twisting angles, leading to buckling, elastic deformation, and difficulty in achieving a smooth, gradient-colored finish.
Innovation Solution
The method involves adjusting a clamping apparatus, filling hollow aluminium sheet units with flexible fillers to distribute stress uniformly, and using a multi-time small-angle twisting process to achieve the desired angle without excessive stress concentration, followed by painting and assembly onto framework structures to form a gradient-colored, twisted aluminium sheet structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional mechanical clamping at two ends is used for arc bending, then the aluminium sheets can be twisted, but stress concentration occurs near clamping ends causing uneven deformation and buckling
Solution Approach 1:
The patent divides the aluminium sheet into multiple sections with different twisting angles. Instead of twisting the entire sheet uniformly, it segments the sheet into at least two sections with different twisting angles, which distributes the stress more evenly and prevents concentration at clamping ends.
Solution Approach 2:
The patent applies different twisting angles to different sections of the aluminium sheet based on local requirements. Each section can have its own optimal twisting angle, allowing the structure to achieve both aesthetic gradient effects and structural integrity by matching local deformation characteristics.
2Shape
If excessively large twisting radian is applied, then the aluminium sheets achieve desired curvature, but buckling deformation occurs
Solution Approach 1:
By segmenting the aluminium sheet into sections with progressively increasing twisting angles, the patent avoids applying excessive twisting radian to any single section. This gradual progression maintains structural stability while achieving the desired overall curvature effect.
Solution Approach 2:
The patent creates a dynamic gradient in twisting angles across different sections, where the twisting angle varies continuously or step-wise along the length of the sheet. This dynamic approach allows the structure to achieve curvature while distributing stress to prevent buckling.
3Stability of the object's composition
If excessively small twisting radian is applied, then the aluminium sheets avoid buckling, but elastic deformation occurs and the desired shape is not achieved
Solution Approach 1:
The patent segments the sheet into multiple sections with progressively larger twisting angles, ensuring that no single section experiences excessive twisting that would cause buckling, while the cumulative effect of all sections achieves the desired overall curvature.
Solution Approach 2:
The patent implements a continuous or progressive twisting angle gradient across sections, ensuring that the useful action of twisting is distributed continuously throughout the structure. This prevents sudden jumps in deformation that would cause elastic rebound while maintaining structural stability.
4Productivity
If one-time twisting forming with large angle mutation is used, then the process is simple, but obvious rebound and irregular deformation occur
Solution Approach 1:
The patent segments the twisting process into multiple stages corresponding to different sections of the aluminium sheet. Each section is twisted to a specific angle in a controlled sequence, which prevents obvious rebound and irregular deformation while maintaining reasonable processing efficiency.
Solution Approach 2:
The patent performs preliminary twisting on individual sections before final assembly. By pre-twisting each section to its designated angle and then assembling them in sequence, the process achieves precise angle control while avoiding the rebound issues associated with single-step large-angle twisting.
5Ease of manufacture
If the aluminium sheets are clamped and twisted at two ends, then the twisting is achieved, but the sheets extend along the longitudinal axis causing depression or diameter shrinkage in middle sections
Solution Approach 1:
The patent segments the aluminium sheet into multiple sections that are twisted independently or semi-independently. This segmentation prevents the longitudinal extension and cross-sectional deformation that occur in traditional end-clamping methods, as each section can be twisted without causing cumulative stress in the middle sections.
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 approach ensures uniform stress distribution, reduces deformation issues, and allows for precise control of twisting angles, resulting in a stable, aesthetically pleasing, and ornately decorated aluminium sheet curtain wall with a gradient color effect.
Implementation Method 1
filling the hollow aluminium sheet units with flexible fillers... ensures uniform stress distribution
Implementation Method 2
using a multi-time small-angle twisting process to achieve the desired angle without excessive stress concentration
Implementation Method 3
followed by painting and assembly onto framework structures to form a gradient-colored, twisted aluminium sheet structure
Data Source
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AI summary
The present invention provides a processing and mounting method for a twisted aluminum sheet having a gradient color, comprising the following steps: twisting of aluminum sheet units: respectively twisting a plurality of hollow aluminum sheet units, specifically, clamping one end of each aluminum sheet unit by means of a telescopic sheet rolling machine, and twisting the other end by means of a twisting machine to twist the aluminum sheet unit towards the sheet rolling machine along the direction of the twisting machine until the aluminum sheet unit is twisted to a designed angle; filling the hollow aluminum sheet units with flexible fillers; painting of the aluminum sheet units: respectively painting the aluminum sheet units according to a design requirement of a gradient color; building of framework structures: providing grille-shaped framework structures along the outside of a building according to design requirements, the framework structures being fastened on the building; and assembly of aluminum sheet structures: providing at least one aluminum sheet structure on each grille-shaped framework structure from top to bottom, the aluminum sheet structure being formed by splicing at least two painted aluminum sheet units.