Aircraft Landing Gear Door Alignment Tool
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Solution Overview
Problem
Aligning landing gear doors on aircraft during production is labor-intensive and time-consuming, requiring repetitive adjustments of adjustable support rods to meet strict aerodynamic requirements.
Innovation Solution
A door alignment tool with self-adjusting rods is temporarily installed to emulate the final door stop components, allowing for accurate setting of rod lengths without incremental adjustments, reducing labor and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If final door stop components are installed and incremental adjustments are performed to align the landing gear door, then manufacturing precision is improved, but productivity is reduced due to time-consuming adjustments
Solution Approach 1:
A door alignment tool is temporarily installed before the final door stop components to pre-establish the correct alignment position. The tool includes adjustable rods that can be set to the precise length needed for proper door alignment, allowing the final components to be installed without time-consuming incremental adjustments. This preliminary positioning action eliminates the need for repeated measurement and adjustment during final installation.
Solution Approach 2:
The door alignment tool serves as an intermediary device between the installation process and the final door stop components. It temporarily performs the alignment function during manufacturing, enabling precise positioning to be established before the permanent components are installed. The tool acts as a mediator that transfers the alignment information to the final components, improving both precision and productivity.
2Manufacturing precision
If multiple incremental adjustments are made to adjustable support rods to achieve proper door alignment, then manufacturing precision is improved, but loss of time increases due to repetitive adjustments
Solution Approach 1:
The door alignment tool is configured and adjusted to the correct dimensions before installation, establishing the precise alignment parameters in advance. This preliminary configuration eliminates the need for multiple incremental adjustments during the actual door alignment process, significantly reducing adjustment time while maintaining high manufacturing precision.
3Productivity
If a door alignment tool is temporarily installed to emulate final components and enable accurate length setting, then productivity is improved by reducing adjustment time, but device complexity increases due to additional temporary equipment
Solution Approach 1:
The door alignment tool is designed to emulate or copy the function and configuration of the final door stop components. By creating a temporary replica that performs the same alignment function, the tool enables accurate length setting and positioning without requiring complex adjustment mechanisms. The copied design simplifies the alignment process while maintaining productivity benefits.
4Device complexity
If final door stop components are installed without preliminary alignment tool usage, then device complexity is reduced, but manufacturing precision deteriorates due to difficulty in achieving accurate alignment
Solution Approach 1:
The door alignment tool performs preliminary alignment work before the final components are installed. This preliminary action establishes the correct geometric relationships and dimensions, ensuring that when the simpler final components are installed, they automatically achieve the required manufacturing precision without complex adjustment procedures.
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
The tool enables quick and accurate alignment of landing gear doors, reducing the time and effort required for setting and installing final door stop components, improving ergonomics and efficiency in aircraft manufacturing.
Implementation Method 1
a spring configured to compress to reduce the length of the telescopic body, and to expand to extend the length of the telescopic body
Implementation Method 2
a locking mechanism configured to lock the telescopic body at a fixed length to prevent expansion of the spring
Data Source
AI summary
Systems and methods are provided for door alignment of an aircraft landing gear door. One embodiment is an apparatus that includes a plurality of adjustable rods configured to temporarily install in an aircraft to stand in place of a final adjustable part, each of the adjustable rods configured to position a block for stopping a door of the aircraft. Each of the adjustable rods includes a telescopic body configured to extend and retract in length, and a spring configured to compress to reduce the length of the telescopic body, and to expand to extend the length of the telescopic body. Each adjustable rod also includes a locking mechanism configured to lock the telescopic body at a fixed length to prevent expansion of the spring, and to unlock the telescopic body to release the spring and adjust the telescopic body to an adjusted length.