Armored Vehicle Walking Floor Honeycomb Composite Vibration Dampening
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Solution Overview
Problem
Existing armored vehicle walking floors are prone to high-frequency vibrations during mine explosions, leading to potential shin fractures for occupants due to the mechanical coupling with the mine protection floor and lack of effective vibration dampening.
Innovation Solution
A composite walking floor with a honeycomb core layer sandwiched between two cover layers, featuring integrated holding means for attachment to the vehicle, which allows for oscillation during explosions, thereby reducing peak forces transmitted to occupants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the running floor is mechanically coupled to the mine protection floor with stiffening elements, then the structural strength is improved, but high-frequency vibrations are transmitted to occupants causing shin fractures
Solution Approach 1:
A viscoelastic damping layer is introduced as an intermediary between the running floor and the mine protection floor. This damping layer absorbs and dissipates vibration energy, preventing high-frequency vibrations from being transmitted to occupants while maintaining the structural coupling between floors
Solution Approach 2:
The floor construction uses a composite structure combining the running floor, viscoelastic damping layer, and mine protection floor. This composite design allows the system to simultaneously achieve structural strength through the rigid components and vibration dampening through the viscoelastic material
2Strength
If a metal plate barrel base is used, then the structural integrity is maintained, but vibrations from explosions are transmitted without dampening
Solution Approach 1:
The material properties of the barrel base are changed from purely metallic to a composite structure incorporating viscoelastic materials. This parameter change allows the barrel base to maintain structural integrity while introducing vibration-dampening characteristics through the viscoelastic layer
3Reliability
If steel plates are integrated into composite panels for mine protection, then the protection capability is improved, but the weight of the floor increases
Solution Approach 1:
The material composition of the composite panels is optimized by adjusting the ratio and distribution of steel plates and other materials. This allows maintaining protection capability while reducing overall weight through parameter optimization
Solution Approach 2:
The floor uses a multi-layer composite structure combining steel plates with lighter materials. This composite design maintains the protection capability provided by steel while reducing the overall weight through the use of lighter composite materials in non-critical areas
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 composite walking floor significantly reduces shin stress and maintains structural integrity during mine explosions, with the honeycomb structure providing effective vibration dampening and crash absorption.
Implementation Method 1
the honeycomb structure providing effective vibration dampening and crash absorption
Implementation Method 2
the honeycomb structure providing effective vibration dampening and crash absorption
Data Source
AI summary
The invention relates to a walking floor for an armored vehicle with a double floor to protect against mine explosions, characterized by a composite panel (10) having at least one core layer (11) made of a honeycomb structure, which is arranged between a first and a second outer layer (12a, 12b) and is connected thereto, wherein retaining means for connecting the composite panel (10) to the vehicle are integrated in the composite panel (10).