Tear-Webbing Net for Non-Impact Vehicle Stopping
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Solution Overview
Problem
Existing vehicle stopping devices using net-like structures often result in abrupt wheel locking and skidding, leading to loss of control due to sudden stops.
Innovation Solution
A non-impact stopping device featuring a net structure made from tear-webbing with energy-absorbing properties and tire-penetrating spike-plates that wrap around vehicle wheels, gradually absorbing energy to control the stopping process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If net-like stopping devices wrap around vehicle wheels, then vehicle stopping is achieved, but abrupt wheel locking occurs causing skidding and loss of control
Solution Approach 1:
The net structure incorporates energy-absorbing elements that progressively deform and absorb kinetic energy during the stopping process. This beforehand cushioning mechanism prevents sudden wheel locking by gradually reducing vehicle speed through controlled energy dissipation, thereby maintaining vehicle control stability while achieving effective stopping.
2Strength
If net structure uses strong flexible elements, then structural strength is improved, but energy absorption capability decreases
Solution Approach 1:
The flexible elements are designed with specific mechanical properties that allow them to undergo controlled deformation at predetermined stress levels. By adjusting parameters such as material composition, cross-sectional area, and deformation characteristics, the net structure achieves optimal balance between maintaining structural strength and absorbing kinetic energy during vehicle stopping.
Solution Approach 2:
The net structure employs composite construction combining strong flexible elements with energy-absorbing components. This composite approach allows the system to simultaneously achieve high structural strength for containing the vehicle and effective energy absorption through progressive deformation of the webbing elements, resolving the contradiction between strength and energy loss.
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 device effectively prevents skidding and loss of control by gradually slowing the vehicle through energy absorption, ensuring a controlled stop without sudden wheel locking.
Implementation Method 1
at least part of the net structure is formed from tear-webbing deployed so as to irreversibly absorb energy applied to deform the net structure
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A device (10) for non-impact stopping of a wheeled vehicle includes a net structure formed from flexible elements (2) extending in a first direction interconnected with flexible elements (3) extending in a second direction, non-parallel to the first direction. Tire-penetrating elements (12) are mechanically linked to the net structure. At least part of the net structure is formed from tear-webbing deployed so as to irreversibly absorb energy applied to deform the net structure. Most preferably, at least part of each of the flexible elements (2, 3) extending in one or both of the first and second directions is formed from tear-webbing.