Modular Disengaging System for Rotational Impact Protection
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Solution Overview
Problem
Current protective helmets are primarily designed to mitigate linear acceleration during impacts, leaving them ineffective in reducing rotational acceleration, which is a significant cause of head injuries, and require complex structural modifications to address this issue, leading to increased production costs and reduced versatility.
Innovation Solution
A modular disengaging system comprising multiple layers that can be coupled to the body-facing surface of protective equipment, allowing relative lateral motion upon impact to reduce both rotational and linear accelerations, without the need for significant structural changes to the equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard shielding equipment is designed based primarily on linear acceleration, then the equipment can effectively mitigate linear acceleration, but it lacks the ability to mitigate rotational acceleration, leaving the impacted object vulnerable to further damage
Solution Approach 1:
The protective system is divided into multiple independent layers (first layer, second layer, third layer) with distinct functions. The first layer handles linear acceleration protection, while the second layer specifically addresses rotational acceleration through lateral motion, and the third layer provides additional protection. This segmentation allows each layer to specialize in mitigating specific types of acceleration forces.
Solution Approach 2:
The second layer acts as an intermediary between the first and third layers, facilitating relative lateral motion to reduce rotational acceleration. This intermediate layer transfers and transforms the impact forces, converting rotational acceleration into lateral motion that can be dissipated safely.
2Object-affected harmful factors
If helmet structure is modified to address rotational acceleration, then rotational acceleration protection is improved, but production lead times increase, costs increase, and versatility decreases
Solution Approach 1:
The rotational acceleration protection is implemented as a separate, modular second layer that can be independently designed and manufactured. This layer does not require redesigning the entire helmet structure, thus maintaining production efficiency and versatility while adding specific rotational acceleration mitigation capability.
Solution Approach 2:
The second layer is designed to dynamically respond to rotational acceleration forces by facilitating relative lateral motion between layers. This dynamic response mechanism allows the system to adapt to different impact scenarios without requiring complex structural modifications to the base helmet design.
3Object-affected harmful factors
If a modular disengaging system with multiple layers is implemented, then both rotational and linear accelerations are reduced, but the device complexity increases
Solution Approach 1:
The protective system is segmented into three functional layers, each with a specific role in acceleration mitigation. This segmentation allows for simplified design and manufacturing of individual layers, which can be produced using standard processes and then assembled together, offsetting the complexity of having multiple layers.
Solution Approach 2:
The modular disengaging system is designed to provide multiple functions (linear acceleration protection, rotational acceleration reduction, energy absorption) through a relatively simple multi-layer structure. Each layer contributes to multiple protection goals, maximizing the benefit-to-complexity ratio.
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 modular system effectively reduces rotational and linear accelerations, enhancing protection against impact forces while maintaining cost-effectiveness and versatility by being easily integrable with existing protective gear.
Implementation Method 1
The second layer is configured to facilitate relative lateral motion between the first layer and the third layer upon an impact force acting on the modular disengaging system
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
The present disclosure seeks to reduce the effects of rotational and linear acceleration experienced by the body of a user in response to an impact force. Modular disengaging systems of the present disclosure are generally suitable for coupling to protective equipment to provide a disengaging motion between various layers such that the effects of the impact force to the body of the user are reduced. Generally described, the modular disengaging systems of the present disclosure include layers configured to facilitate relative lateral motion therebetween upon an impact force.