Aircraft Panel Release with Preloaded Spring Ejection
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Solution Overview
Problem
Existing aircraft panel emergency release systems require significant manual strength to operate, especially in emergency situations, and are not easily assembled on the aircraft support.
Innovation Solution
A device with pre-loaded coil springs and removable pins that can be actuated by minimal force, allowing for easy release of aircraft panels, featuring a frame secured to the support with seals for a tight seal and adjustable flushness, and optionally remote-controlled actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional latches with cables and actuators are used to secure the panel, then the panel can be held securely in the working position, but significant manual strength is required to operate the release mechanism in emergency situations
Solution Approach 1:
The spring is pre-loaded in the compressed state during assembly, storing energy in advance. When the removable pin is withdrawn, the pre-compressed spring immediately generates the ejection force to push the panel outward, eliminating the need for significant manual strength during emergency operation.
Solution Approach 2:
The system uses the pre-loaded spring to automatically provide the ejection force needed to release the panel. Once the removable pin is withdrawn, the spring self-generates the force to push the panel outward without requiring additional manual effort or complex actuation mechanisms.
2Reliability
If heavy-duty latches and securing mechanisms are used to ensure panel security, then the panel can be reliably secured, but the device becomes more complex and difficult to assemble on the aircraft support
Solution Approach 1:
The release device is divided into separate functional modules: a frame that secures to the support, ejector members with studs that engage the panel, removable pins for securing, and pre-loaded springs for ejection. This segmentation allows each component to be simple and easy to assemble while collectively providing reliable panel securing.
Solution Approach 2:
The complex actuation mechanism is extracted and replaced with a simple removable pin system. The pin merely needs to be inserted or withdrawn, without requiring cables, actuators, or complex linkages. This extraction of unnecessary complexity maintains reliability while dramatically simplifying the device.
3Device complexity
If a person must manually push out and possibly lift the panel after latches are retracted, then the release mechanism is simple, but injured persons or children cannot easily operate it due to panel weight
Solution Approach 1:
The spring is pre-loaded in the compressed state during assembly, storing energy in advance. When the removable pin is withdrawn, the pre-compressed spring immediately generates the ejection force to push the panel outward, eliminating the need for significant manual strength during emergency operation.
Solution Approach 2:
The system uses the pre-loaded spring to automatically provide the ejection force needed to release the panel. Once the removable pin is withdrawn, the spring self-generates the force to push the panel outward without requiring additional manual effort or complex actuation mechanisms.
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 quick and effortless panel release by anyone, regardless of physical strength, with minimal actuation force and allows pre-mounted assembly on the aircraft support, enhancing safety and ease of installation.
Implementation Method 1
a spring pre-loaded in compression in the longitudinal direction, the spring being arranged coaxially around the stud
Data Source
AI summary
A device for releasing a panel of an aircraft, the device being configured to be secured to a support, the support having an opening and the device being attached to cover a periphery of the opening, the device comprising a panel configured to be arranged at least opposite the opening. Such a device comprises: at least two ejector members, each of the at least two ejector members comprising at least one link; and at least one control member for applying a pulling force to the at least one link.