Aircraft Cargo Positioning via Linear Synchronous Motor Tracks
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Solution Overview
Problem
The manual loading and securing of cargo units in aircraft cargo compartments is time-consuming, costly, and poses safety risks due to the need for physical interaction and potential tripping hazards from rollers, especially when handling oversized units.
Innovation Solution
A linear track system with linear synchronous motor (LSM) tracks embedded in the floor, using conductive strips on cargo units to interact with the tracks for movement and electromagnets for secure locking, allowing autonomous positioning and securing of cargo units without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual loading and securing methods are used, then cargo units can be positioned and secured, but the process is time-consuming and labor-intensive
Solution Approach 1:
The patent replaces manual mechanical operations with an automated electromechanical system. Electromagnets embedded in the floor replace manual securing actions, while linear synchronous motor tracks replace manual pushing/guiding. This substitution eliminates the need for workers to physically move and secure cargo units, dramatically increasing productivity and reducing time loss.
Solution Approach 2:
The cargo unit itself becomes part of the positioning and securing mechanism through the conductive strips attached to its bottom. These strips interact with the electromagnets and LSM tracks, allowing the cargo unit to be actively moved and secured by the system rather than requiring external manual intervention for each operation.
2Reliability
If manual securing methods are used, then cargo units can be locked in place, but safety risks arise from physical interaction and tripping hazards
Solution Approach 1:
The patent eliminates manual physical interaction by replacing human operators with an automated electromechanical system. Electromagnets provide reliable securing through magnetic attraction to ferromagnetic blocks, while LSM tracks enable safe movement without requiring workers to navigate around rollers or handle oversized cargo units manually, thus removing tripping hazards and physical strain risks.
Solution Approach 2:
The patent introduces conductive strips as an intermediary between the cargo unit and the electromagnets/LSM tracks. These strips enable the cargo unit to interact with the automated system without requiring direct manual handling, serving as a safe interface that transfers force and control while protecting workers from physical risks.
3Ease of operation
If traditional rollers are used for cargo movement, then cargo units can be moved across the floor, but tripping hazards and manual handling risks increase
Solution Approach 1:
The patent replaces the roller-based mechanical movement system with linear synchronous motor tracks embedded in the floor. This electromagnetic propulsion system moves cargo units smoothly without exposed rollers, eliminating tripping hazards while maintaining ease of operation through automated control. The LSM tracks provide precise, controlled movement without requiring manual pushing or guiding.
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
Enables efficient, safe, and autonomous loading/unloading of cargo units, reducing manual labor and minimizing safety risks by allowing precise positioning and secure locking of cargo units within the aircraft cargo compartment.
Implementation Method 1
a first linear synchronous motor (LSM) track coupled to a floor of the cargo compartment, a second LSM track coupled to the floor of the cargo compartment
Implementation Method 2
activate the first and second LSM tracks to move a cargo unit along the first and second LSM tracks
Implementation Method 3
activate the set of electromagnets to magnetically attract the set of blocks to the set of electromagnets to lock the cargo unit in the desired position
Implementation Method 4
a set of electromagnets in a floor of the cargo compartment
Data Source
AI summary
Methods and apparatus to position a cargo unit in a cargo compartment of an aircraft are disclosed herein. An example linear track system in a cargo compartment of an aircraft includes a first linear synchronous motor (LSM) track coupled to a floor of the cargo compartment, a second LSM track coupled to the floor of the cargo compartment, and a cargo positioning system to activate the first and second LSM tracks to move a cargo unit along the first and second LSM tracks through the cargo compartment. A bottom of the cargo unit has first and second strips of conductive material to interact with the corresponding first and second LSM tracks.