Launchable Dog Dummy Venting for Noise and Barrel Wear
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Solution Overview
Problem
Existing launchable dummies produce loud noises that limit training scenarios to remote areas and can startle or harm people, and they may cause damage to launcher components due to rapid pressure release.
Innovation Solution
The introduction of pressure-relief features such as holes and widened cavities in the dummy design to gradually release pressure, reducing noise and minimizing component abrasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a traditional launchable dummy is used without pressure-relief features, then the dummy can be launched effectively for training, but loud noises are produced that limit training to remote areas and can harm people
Solution Approach 1:
The patent extracts the harmful noise by introducing pressure-relief holes that allow explosive pressure to escape before the dummy leaves the barrel. This separates the useful launching function from the harmful noise generation, enabling training in urban environments while maintaining effective dummy projection.
Solution Approach 2:
The pressure-relief holes act as intermediaries between the explosive pressure source and the external environment. They provide a controlled pathway for pressure release, mediating between the need for powerful launch and the need to reduce noise pollution.
2Speed
If rapid pressure release occurs in the dummy cavity, then the dummy launches effectively, but launcher components suffer from abrasion and damage
Solution Approach 1:
The pressure-relief holes are positioned to open before the dummy fully leaves the barrel, allowing pressure to begin releasing in advance. This preliminary pressure release prevents the sudden, violent expansion that causes abrasion to the launcher components, while still maintaining sufficient launch speed.
Solution Approach 2:
The pressure-relief mechanism provides a cushioning effect by gradually equalizing pressure inside the dummy cavity before launch completion. This prevents the sharp pressure spike that would otherwise cause mechanical damage to the launcher and its components.
3Power
If pressure is released quickly from the dummy cavity, then the dummy achieves sufficient propulsion, but the pressure release duration is short causing noise and component wear
Solution Approach 1:
The pressure-relief holes enable continuous pressure equalization throughout the launch sequence rather than a single abrupt release. This extends the useful action duration by maintaining controlled pressure release from the moment of ignition through the dummy's exit from the barrel, distributing the pressure work over time.
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
This design allows for quieter training in various environments and reduces wear on launcher components by extending the pressure release duration, enhancing versatility and user experience.
Implementation Method 1
pressure builds up inside the cavity causing the launchable dummy to move away from the launcher, and some pressure is released from the cavity through the pressure-relief hole before the launchable dummy entirely leaves the barrel
Data Source
AI summary
A launchable dummy and launchable dummy system that include pressure-relief functionality, which may include a hole in the side of the body of the dummy or a widened cavity section. The launchable dummy and launchable dummy system include a cavity in the body of the dummy to accept a barrel from a launcher. In some embodiments, the cavity has two sections, with a first section having a larger diameter than a second section, and with the pressure-relief hole connecting the first section to an exterior of the body of the dummy. In some embodiments, the cavity has a tapered section between the first and second sections that includes a gradual change in diameter. In some embodiments, the launchable dummy and launchable dummy system include two or more pressure-relief holes.