Parachute Ejector Layout for Flexible Aircraft Mounting
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Solution Overview
Problem
Existing parachute safety apparatuses for aerial vehicles lack diversity in attachment positions and have difficulty accommodating ejected objects efficiently.
Innovation Solution
A safety apparatus with a sliding member, actuator, and container design that allows attachment to various positions on the aerial vehicle, featuring a shifted actuator placement and separate housings for pilot chute and main parachute, along with a trigger device for automatic activation in abnormal states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the actuator is positioned at the geometric center of the container bottom surface, then the structure is symmetric and stable, but the ease of accommodation of the ejected object is reduced
Solution Approach 1:
The actuator is deliberately positioned at an off-center location on the bottom surface of the container, creating an asymmetric structure that optimizes the ejection path and accommodation space for the ejected object, resolving the contradiction between structural symmetry and ease of accommodation
2Adaptability or versatility
If the safety apparatus is designed with a fixed central attachment position, then the structure is simplified, but the adaptability to different aerial vehicle configurations is reduced
Solution Approach 1:
The safety apparatus is designed with a universal attachment structure that can be installed at multiple different positions on various aerial vehicles, making the device adaptable to different configurations and applications while maintaining functional integrity
3Ease of operation
If the container has a compact design, then the volume is reduced, but the ease of accommodation of the ejected object is worsened
Solution Approach 1:
The container design incorporates dynamic spatial arrangement where the internal volume is optimized to provide sufficient accommodation space for the ejected object while maintaining a compact external form, achieving balance between compactness and operational ease
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
Enhances safety performance by providing diverse attachment options and improving ease of accommodation for ejected objects, reducing air resistance and power consumption while ensuring rapid deployment of parachutes.
Implementation Method 1
a gas generator that moves the piston member in the cylinder
Data Source
AI summary
There is provided a safety apparatus that not only has excellent safety performance but also has improved ease of accommodation of an ejected object in a container, and is capable of securing diversity of attachment positions to an aerial vehicle as compared with a related art, and an aerial vehicle including the safety apparatus. The safety apparatus includes a pilot chute ejector 62 and a main parachute storage. The pilot chute ejector 62 includes an actuator 1, a push-up member 15 pushed up in one direction by the actuator 1, a pilot chute 16 pushed up while being supported by the push-up member 15, a bottomed cylindrical container 18 that accommodates the actuator 1, the push-up member 15, and the pilot chute 16, and a lid 21 having a fan-shaped cross section that closes an opening end of the container 18. The actuator 1 is fixed at a position shifted from a geometric center of the fan-shaped cross section on a bottom surface of the container 18 via a base 2.