Extensible Partition Air Bag for Buoyancy Redundancy
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Solution Overview
Problem
Conventional life jackets with built-in air bags and compressed air cylinders lose buoyancy if the air bag is damaged, posing a safety risk during water activities.
Innovation Solution
An air bag structure comprising a first and second air bag separated by an extensible intermediate partition, where if one air bag is broken, the intermediate partition deforms to inflate the other, maintaining buoyancy and extending rescue time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single air bag is used in the life jacket, then the structure is simple, but the buoyancy is lost completely when the air bag is damaged
Solution Approach 1:
The air bag system is divided into two separate air bags (first air bag and second air bag) with an intermediate partition between them. This segmentation ensures that if one air bag is damaged, the other can still provide buoyancy, thereby improving reliability without requiring a completely complex system overhaul.
Solution Approach 2:
The intermediate partition is pre-designed with extensible material that can automatically deform and redirect air flow when one air bag is damaged. This preliminary preparation allows the system to automatically compensate for damage without requiring external intervention or complex control mechanisms.
2Reliability
If the intermediate partition is made extensible to enable volume compensation, then the buoyancy can be maintained when one air bag is broken, but the manufacturing complexity increases
Solution Approach 1:
The intermediate partition is made from extensible material that can change its physical parameters (area and shape) in response to pressure differences. This allows the partition to dynamically adjust its configuration to redirect air flow from the intact air bag to the damaged one, maintaining buoyancy without complex mechanical components.
3Ease of operation
If compressed air cylinder is used to inflate the air bag, then the life jacket is thin and convenient for activities, but the buoyancy is completely lost if the air bag is punctured by external objects
Solution Approach 1:
The system incorporates a backup mechanism where the intermediate partition can redirect air flow from the intact air bag to the damaged one. This beforehand preparation ensures that even if external objects puncture one air bag, the buoyancy is maintained through the compensatory mechanism, cushioning against the harmful effect of damage.
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 air bag structure ensures continued buoyancy and extended rescue time by doubling the volume of the intact air bag when one is damaged, enhancing user safety during water activities.
Implementation Method 1
the intermediate partition uses its extensibility to be deformed toward the rupture
Implementation Method 2
The edges of the first outer cladding, the intermediate partition and the second outer cladding are sealed by pressing, so that a first air bag is formed
Data Source
AI summary
An air bag structure includes an air bag body. The air bag body includes a first air bag, a second air bag, and an intermediate partition disposed between the first air bag and the second air bag. The intermediate partition is extensible. When one of the air bags is broken, the other air bag is inflated. The intermediate partition is deformed to move toward the rupture, and the air volume of the good air bag is doubled and returned to the original air volume, thereby maintaining buoyancy.