Aircraft Part Mounting Adjustment with Decentered 3D Alignment
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Solution Overview
Problem
Existing adjustment devices for aircraft parts do not adequately compensate for manufacturing and assembly plays between parts, requiring tedious and time-consuming combined adjustments along multiple axes to achieve precise positioning.
Innovation Solution
An adjustment device with decentered internal and external adjustment axes, utilizing helical connections and reversible locking mechanisms, allows for simple and accurate compensation of plays along three axes by rotating and translating adjustment members to achieve precise alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional adjustment devices with single-plane adjustment are used, then the device structure remains simple, but it cannot adequately compensate for manufacturing and assembly plays in three dimensions
Solution Approach 1:
The patent implements a nested adjustment mechanism where an internal adjustment member is positioned within an external adjustment member. The internal member provides adjustment in one plane while the external member provides adjustment in another plane, allowing three-dimensional compensation without requiring completely separate adjustment devices. This nested structure achieves high positioning precision while controlling overall device complexity.
Solution Approach 2:
The patent transitions from two-dimensional adjustment (single plane) to three-dimensional adjustment by introducing decentered adjustment axes. The external adjustment member adjusts position in a first plane, while the internal adjustment member adjusts position in a second plane perpendicular to the first, enabling comprehensive three-dimensional compensation for manufacturing and assembly plays.
2Manufacturing precision
If multiple separate adjustment operations are performed to compensate for plays in different directions, then positioning precision can be achieved, but the assembly process becomes tedious and time-consuming
Solution Approach 1:
The patent combines multiple adjustment functions into a single integrated device. The external adjustment member and internal adjustment member work together in one coordinated system, allowing simultaneous adjustment in multiple planes. This eliminates the need for multiple separate adjustment operations and reduces assembly time while maintaining positioning precision.
Solution Approach 2:
The adjustment device is pre-configured with decentered axes and nested members that enable three-dimensional adjustment capability before the actual assembly process begins. This preliminary design allows the operator to make all necessary adjustments in one operation rather than performing multiple sequential adjustment steps.
3Manufacturing precision
If decentered adjustment axes are used to enable three-dimensional adjustment, then positioning precision is improved, but the device structure becomes more complex
Solution Approach 1:
The patent places the internal adjustment member with its decentered axis inside the external adjustment member. This nested arrangement allows the internal member to provide adjustment in a plane perpendicular to the external member's adjustment plane, achieving three-dimensional positioning capability while containing the complexity within a compact nested structure rather than requiring separate distributed components.
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
Simplifies the assembly process by allowing for precise adjustment of aircraft parts along three axes, reducing the need for multiple adjustment steps and enhancing operational efficiency.
Implementation Method 1
the internal adjustment member is mounted in the external adjustment member via a helical connection along the internal position adjustment axis
Data Source
AI summary
An adjustment device for adjusting the mounting of a first aircraft part on a second aircraft part, aircraft cabin and associated method, the device including a base body and an external adjustment member, configured to be mounted on the base body in an external angular position chosen from a plurality of predefined external angular positions. The device also includes an internal adjustment member, configured to be mounted on the external adjustment member in an internal angular position chosen from a plurality of predefined internal angular positions around an internal position adjustment axis, offset relative to the external position adjustment axis. For each predefined internal angular position, the internal adjustment member is configured to be placed in an elevation position chosen from a plurality of predefined elevation positions relative to the base body along the internal position adjustment axis.