Aircraft Wall Module Clamping for Faster Cabin Lining Assembly
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Solution Overview
Problem
The complex and time-consuming process of attaching and anchoring lightweight wall modules in aircraft fuselages for noise and heat insulation, which requires multiple screwing processes and is labor-intensive, necessitates a more efficient fastening method to reduce assembly time and facilitate automation.
Innovation Solution
A holding device using two clamping devices, one with a movable clamping jaw and an actuating lever, and another with a fork-shaped profile, to securely hold wall modules on their upper and lower edges, allowing for initial secure placement without additional measures, with optional further securing points for additional stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple screw connections or interlocking devices are used to attach wall modules to the aircraft fuselage, then the structural integrity and secure fastening are improved, but the assembly process becomes personnel-intensive and time-consuming
Solution Approach 1:
The attachment system is segmented into multiple independent clamping devices, each responsible for a specific fastening point. This allows parallel assembly operations at different locations, improving overall productivity while maintaining secure fastening through distributed clamping points
Solution Approach 2:
Traditional screw connections and interlocking devices are replaced with a clamping mechanism that uses mechanical leverage through actuating levers. This substitution simplifies the fastening process from multi-step screwing operations to a single clamping action, significantly reducing assembly time while maintaining attachment reliability
2Adaptability or versatility
If traditional screw connections or interlocking devices with elongated holes are used to allow play between wall modules and frames, then adaptability to temperature fluctuations is improved, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The clamping devices incorporate movable clamping jaws that can dynamically adjust their position and pressure. This dynamic capability allows the system to adapt to thermal expansion and contraction of the aircraft fuselage while maintaining secure attachment, replacing the need for complex elongated hole configurations
Solution Approach 2:
The clamping force and jaw position parameters can be adjusted to accommodate temperature-induced dimensional changes in the fuselage structure. This parameter adaptability provides the necessary thermal flexibility without requiring complex fastening geometries, simplifying the overall attachment system
3Weight of moving object
If lightweight construction materials are used for wall modules to reduce weight, then the weight reduction is achieved, but the attachment and anchoring process becomes very complex
Solution Approach 1:
The clamping devices are designed to automatically secure the lightweight wall modules through their clamping action. The system self-adjusts to maintain proper clamping force on the lightweight structure without requiring complex additional anchoring measures, making the attachment process simpler despite the delicate nature of lightweight 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
This system simplifies the fastening process by allowing wall modules to be securely placed and adjusted manually or with robots, reducing assembly time and enabling efficient installation and disassembly, while maintaining structural integrity and insulation properties.
Implementation Method 1
The movable clamping jaw (32) is elastically deformable under clamping force in order to accommodate dimensional tolerances of a wall module (10)
Data Source
AI summary
A holding device for a wall module 10 of the cabin lining in an aircraft includes two different clamping devices. The first clamping device 30 has a clamping body 33 having a first clamping jaw 31, which is fixed relative to the clamping body, and a second clamping jaw 32, which is movable relative to the clamping body 33, which in turn is operatively connected or can be temporarily connected to an actuating lever 35. In the closed state, the clamping jaws 31, 32 form a receiving space 36 for the wall module 10. An interlocking device 37 fixes the position of the clamping jaws 31, 32 relative to one another in the closed state.