Vehicle Floor Armor Plate Deformable Box Energy Absorption
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Solution Overview
Problem
Existing vehicle cabin floor protection devices fail to provide sufficient energy absorption and do not effectively utilize the space beneath the floor for equipment or components without compromising protective performance.
Innovation Solution
A floor protection device comprising multiple integral boxes arranged at a distance from each other, fixed to the cabin walls, allowing for deformation and energy absorption, with the space between them used as storage or for housing vehicle components, and optionally filled with energy-absorbing materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If deformable connecting means are used to fix the armor plate to the cabin, then part of the impact energy is absorbed, but the energy absorption capacity is insufficient
Solution Approach 1:
The connecting means are divided into multiple boxes (at least two boxes integral with the same lower wall, arranged at a distance from each other and separated by a space) instead of using a single continuous structure. This segmentation allows each box to deform independently during impact, increasing the overall energy absorption capacity while maintaining structural integrity for mounting the armor plate.
Solution Approach 2:
The boxes are designed with deformable walls that act as pre-configured cushioning elements. When impact occurs, these walls deform in a controlled manner to absorb energy before the force is transmitted to the cabin floor, providing beforehand cushioning that enhances protective performance.
2Loss of energy
If a deformable plate is arranged below the floor with direct contact to floor supports, then the plate can deform to absorb impact, but the impact is communicated to the floor supports
Solution Approach 1:
The deformable walls of the boxes serve as intermediary elements between the armor plate and the cabin floor. These walls deform during impact to absorb energy and attenuate the shock before it reaches the floor supports, acting as a mediator that protects the floor structure from direct impact forces.
3Adaptability or versatility
If the space below the vehicle floor is used for equipment housing, then the protective performance is improved, but the space utilization may conflict with deformation requirements
Solution Approach 1:
The space below the vehicle floor is segmented into multiple compartments using separate boxes with deformable walls. This segmentation allows the space to be utilized for housing equipment while maintaining the deformability needed for impact energy absorption, as each box can independently deform without compromising the other compartments.
Solution Approach 2:
The walls of the boxes are designed with specific local qualities - they are deformable in the vertical direction to absorb impact energy, while providing structural containment for equipment housing. This local differentiation of mechanical properties allows simultaneous achievement of space utilization and protective performance.
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 solution provides enhanced energy absorption and reduced shock transmission to the cabin floor, allowing for increased protection with minimal mass and utilization of the underfloor space for equipment without penalizing protective performance.
Implementation Method 1
The deformable connecting means also absorb part of the impact energy
Implementation Method 2
absorb part of the effect of the blast of the mine by the deformation of the armor plate
Implementation Method 3
at least one box is filled with an energy absorbing material
Data Source
Figure 1~2b
Figure 3a~4c
Figure 5~6
AI summary
The subject of the invention is a device (9) for protecting the floor (8) of the cabin (2) of a vehicle. This device comprises at least one armoured plate (10) which is located some distance from the floor (8) of the cabin and which is connected to this cabin by deformable means of connection. This device is characterized in that at least one of the deformable means of connection consists of a partitioned box structure (11) which is fixed to the cabin at a lateral substantially vertical wall (2a, 2b) thereof.