Projectile Tumbling Control via Leading Portion Acute Angle
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Solution Overview
Problem
Existing projectiles designed to maximize lethality, such as expanding and fragmenting projectiles, often fail to transfer sufficient kinetic energy and are difficult to control, resulting in inconsistent performance, while tumbling projectiles lack reliable control over tumbling behavior.
Innovation Solution
A projectile design featuring a leading portion with a specific acute angle and a pointed tip, where the length and angle of the leading portion side can be adjusted to control tumbling behavior upon impact, allowing for tailored energy release and increased tumbling frequency, made from materials like copper or composites.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If expanding and fragmenting projectiles are used to increase damage, then the amount of damage to target is improved, but the kinetic energy transfer to target becomes insufficient and control becomes difficult
Solution Approach 1:
The patent modifies the geometric parameters of the projectile, specifically the length and acute angle of the leading portion side relative to the trailing end. By adjusting these parameters, the projectile achieves controlled tumbling that optimizes both energy transfer and damage effectiveness, resolving the contradiction between insufficient energy transfer and need for increased damage.
2Object-affected harmful factors
If expanding and fragmenting projectiles are used to increase damage, then the amount of damage to target is improved, but control over projectile behavior becomes difficult resulting in inconsistent results
Solution Approach 1:
The patent establishes specific geometric parameters for the leading portion, including the acute angle and length ratios, which provide predictable and consistent tumbling behavior. This geometric control ensures reliable projectile performance across multiple shots, resolving the inconsistency problem while maintaining damage effectiveness.
3Loss of energy
If prior art tumbling projectile designs are used, then kinetic energy transfer is improved, but control over how and when the projectile tumbles is lost
Solution Approach 1:
The patent uses specific geometric parameters of the leading portion (acute angle, length ratios) to control and predict tumbling behavior. This allows the designer to tailor the tumbling characteristics to achieve optimal energy transfer while maintaining control over when and how the projectile tumbles during flight.
Data Source
AI summary
A method of making a projectile that tumbles upon impact. The projectile has a leading portion, a leading portion trailing end, and a leading portion side which forms a leading portion acute angle with the leading portion trailing end. A tip extends from the leading portion and has a tip trailing end and a tip side. The tip side forms a tip acute angle with the tip trailing end.