Perforated Baffle Fluid Bladder Pulse Mitigation
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Solution Overview
Problem
Existing vehicle fluid bladders are prone to rupture due to fluid pulses caused by forces, leading to potential damage and failure.
Innovation Solution
Incorporating a baffle structure with perforations within the fluid bladder to mitigate fluid pulses by flowing the fluid through these perforations, thereby reducing pressure and preventing rupture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fluid bladder is subjected to force causing fluid movement, then the fluid bladder can contain and transport the fluid, but the fluid pulse can cause rupture of the bladder wall
Solution Approach 1:
A baffle structure is introduced as an intermediary element between the moving fluid and the bladder wall. The baffle structure absorbs and dissipates the fluid pulse energy through controlled flow resistance, preventing the direct transmission of high-pressure pulses to the bladder wall and thereby preventing rupture.
Solution Approach 2:
The baffle structure incorporates perforations or porous features that allow fluid to pass through while creating flow resistance. This porous configuration enables the baffle to mitigate fluid pulses by forcing the fluid to navigate through restricted pathways, dissipating energy and reducing peak pressures before the fluid reaches the bladder wall.
2Reliability
If a baffle structure with perforations is added to mitigate fluid pulses, then the pulse pressure on the bladder wall is reduced, but the device complexity increases
Solution Approach 1:
The baffle structure is divided into multiple segments or panels, each with specific perforation patterns. This segmentation allows the complex pulse mitigation function to be achieved through simpler, modular components that can be manufactured and assembled more easily than a single complex monolithic structure.
Solution Approach 2:
The baffle structure features non-uniform perforation distributions, with different densities and patterns in different regions. This local quality variation allows the baffle to address pulse mitigation needs in specific high-risk areas while maintaining simpler structures in regions where pulse pressures are lower, thereby reducing overall device complexity.
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 baffle structure effectively absorbs and mitigates fluid pulses, preventing damage to the bladder body by distributing pressure and maintaining structural integrity under force conditions.
Implementation Method 1
flowing the fluid through perforations to mitigate a pulse of the fluid moving within the bladder body
Implementation Method 2
baffle structure with perforations within the fluid bladder to mitigate fluid pulses by flowing the fluid through these perforations
Implementation Method 3
energy absorbing fluid bladder systems... baffle structure... configured to mitigate pulses by flowing fluid through perforations, deform, expand, and/or otherwise absorb energy to prevent rupture of the fluid bladder
Implementation Method 4
distributing pressure and maintaining structural integrity under force conditions
Data Source
AI summary
Various techniques are provided for an energy absorbing fluid bladder. In one example, the fluid bladder includes a bladder body and a perforated baffle structure. The perforated baffle structure can be disposed within the bladder body and configured to mitigate a pulse of fluid (e.g., fuel) moving within the bladder body before the pulse reaches the bladder body. Related methods are also disclosed.