Blast Damper Framework with Mechanical Joints to Replace Welding
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Solution Overview
Problem
Conventional frameworks for installing blast dampers in buildings are cumbersome due to time-consuming welding processes, which lead to transportation challenges and potential deformations, limiting their ability to maintain a tight connection with the wall and flexibility in dimension modification.
Innovation Solution
A framework with mechanical joints that allow for easy assembly at the installation site, using laser-cut metal profiles that can be securely attached with alignment and securing elements, eliminating the need for welding and enabling efficient transportation and modification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding is used to assemble frame parts, then the framework can be manufactured with strong connections, but the manufacturing process becomes time-consuming and complex
Solution Approach 1:
The patent replaces the welding process (thermal/mechanical system) with a mechanical fastening system using bolts, nuts, and connection elements. This substitution eliminates the time-consuming welding operation while maintaining strong structural connections between frame parts, directly resolving the contradiction between connection strength and manufacturing efficiency.
Solution Approach 2:
The framework is divided into separate, pre-fabricated frame parts that can be manufactured independently and then assembled using simple mechanical connections. This segmentation allows each component to be produced efficiently and assembled quickly on-site, improving overall manufacturing productivity while maintaining structural integrity through standardized connection elements.
2Stability of the object's composition
If the framework is assembled using welding, then structural integrity can be achieved, but transportation and handling become difficult due to assembled state requirements
Solution Approach 1:
The framework is segmented into separate frame parts that can be transported independently in a compact state. These parts are designed to be easily handled and transported, then assembled on-site using simple mechanical connections, resolving the contradiction between maintaining structural integrity and facilitating easy transportation.
Solution Approach 2:
The framework transitions from a static assembled state to a dynamic assembly process. The frame parts are designed to be flexible during transportation and handling, then locked into a rigid, stable configuration during assembly and operation, allowing the structure to adapt to different operational requirements.
3Strength
If welding is used to connect frame parts, then strong joints can be formed, but local deformations occur that prevent tight wall connection
Solution Approach 1:
The patent replaces welding with mechanical fastening systems that apply distributed loads rather than concentrated thermal stresses. This substitution eliminates the local deformations and heat-affected zones associated with welding, allowing frame parts to be connected with high precision and maintain tight alignment for proper wall connections.
Solution Approach 2:
The connection method changes from thermal processing (welding) to mechanical processing (bolting). This parameter change in the joining process eliminates thermal deformation while maintaining joint strength, and allows for easier adjustment and precise alignment of frame parts during assembly.
4Stability of the object's composition
If welding is used for framework assembly, then permanent connections are achieved, but flexibility for dimension modification is lost
Solution Approach 1:
The framework employs dynamic, reversible mechanical connections instead of permanent welding joints. This allows the structure to transition between stable assembled states and disassembled states, enabling dimension modifications and reconfigurations while maintaining strong connections during operation. The mechanical fasteners can be easily adjusted or removed to accommodate dimensional changes.
Data Source
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AI summary
The invention relates to a framework (5) for installing and supporting a blast damper (1) to a wall of a building. The framework (5) comprises a frame (10, 11, 12, 13) forming a periphery of the framework (5) and to which frame (10, 11, 12, 13) components of the blast damper (1) are arranged to be installed and supported, and a frame flow channel (15) through the framework (5), the frame flow channel (15) being defined by the frame (10, 11, 12, 13). The frame (10, 11, 12, 13) comprises at least two frame parts (10, 11, 12, 13) mechanically attached to each other with at least one mechanical joint (20) for providing the frame (10, 11, 12, 13).