Curved Blast Shield Deflecting Explosive Forces
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Solution Overview
Problem
Traditional blast protection methods for ground vehicles, such as heavy armor plates, are inadequate against modern explosive threats, particularly from land mines and improvised explosive devices, which require lighter and more maneuverable vehicle designs that can deflect blasts effectively without excessive weight or energy absorption.
Innovation Solution
A blast shield with a monolithic, curved impact surface defining a smooth continuous catenary profile, which can be made of metal or fiber-reinforced composite, is integrated with the vehicle to deflect blasts and projectiles, featuring a reinforcing rib for enhanced structural integrity and attachment to the vehicle frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If heavy armor plates are used for blast protection, then protection strength is improved, but vehicle weight increases and maneuverability decreases
Solution Approach 1:
The patent applies a curved hull geometry instead of flat armor plates. The curved surface deflects blast waves and projectiles away from the vehicle, reducing the direct impact force on any single point while maintaining overall protection. This curvature principle allows lighter weight compared to traditional heavy armor plates.
Solution Approach 2:
The patent changes the geometric parameters of the vehicle hull by implementing specific curvature radii and surface angles. By optimizing these geometric parameters, the vehicle achieves effective blast deflection with reduced material mass, resolving the contradiction between protection strength and weight.
2Device complexity
If traditional flat hull design is used, then structural simplicity is maintained, but blast deflection capability is reduced
Solution Approach 1:
The curved hull geometry is designed to deflect blast waves and projectiles away from the vehicle. The continuous curvature distributes blast load across a larger surface area and prevents stress concentration, effectively reducing blast impact while maintaining structural integrity.
Solution Approach 2:
The patent transitions from a two-dimensional flat hull to a three-dimensional curved surface. This dimensional change allows the hull to utilize surface area and curvature to deflect blasts, adding a new dimension to blast protection capability.
3Object-affected harmful factors
If V-shaped hull geometry is used, then blast deflection is improved, but vehicle maneuverability and operational function are compromised
Solution Approach 1:
The curved hull provides smooth, continuous surface that deflects blasts while maintaining aerodynamic and hydrodynamic characteristics. This curvature allows the vehicle to maneuver more effectively compared to angular V-shaped designs, as the smooth surface reduces resistance and improves stability.
Solution Approach 2:
By optimizing curvature parameters such as radius of curvature and surface slope angles, the design achieves effective blast deflection while maintaining vehicle dynamics. The parameter optimization ensures the hull provides protection without compromising maneuverability or operational functionality.
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 curved blast shield design effectively deflects blasts and reduces energy absorption, providing superior protection against explosive threats while maintaining vehicle maneuverability and operational functionality, with reduced vertical impact and secondary reflections, and is constructed using existing materials and fabrication techniques.
Implementation Method 1
The exterior impact surface defines a cross-sectional profile defining a smooth continuous curve... effectively deflects blasts and reduces energy absorption
Data Source
AI summary
A blast shield for deflecting a blast incident on a ground vehicle includes an impact section having an exterior impact surface to face a source of the blast. The exterior impact surface defines a cross-sectional profile defining a smooth continuous curve.