Monocoque Military Vehicle Hull for Blast-Resistant Lifting
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Solution Overview
Problem
Traditional military vehicles rely on frame rails for lifting and structural support, which can capture and transfer blast forces to the vehicle, potentially harming occupants and limiting strength-to-weight performance and durability.
Innovation Solution
A military vehicle design featuring a frame rail-less monocoque hull structure with integrated front and rear modules, including a structural shell that provides a load path and incorporates breakaway sections to absorb blast energy, along with a lift structure that allows for elevated transport without damaging the vehicle's components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If frame rails are used for lifting and structural support, then the vehicle can be elevated for transport, but the frame rails capture and transfer blast forces to the vehicle, potentially harming occupants
Solution Approach 1:
The patent removes the traditional frame rail structure from the vehicle design. By extracting the frame rails that capture and transfer blast forces, the monocoque hull becomes the primary structural element, eliminating the harmful blast force transfer pathway while maintaining lifting capability through integrated lift points on the hull.
Solution Approach 2:
The patent merges the structural support function and lifting function into the monocoque hull itself. The hull structure is designed to bear both the structural loads and the lifting forces, eliminating the need for separate frame rails and creating a unified structure that prevents blast force capture while enabling transport elevation.
2Strength
If frame rails are used as the primary structure, then the vehicle achieves structural integrity, but the strength-to-weight performance is limited
Solution Approach 1:
The patent employs composite materials in the monocoque hull construction to achieve high strength-to-weight ratio. The composite structure provides the necessary structural integrity while significantly reducing the overall vehicle weight compared to traditional frame rail constructions, thereby resolving the contradiction between strength and weight.
3Ease of manufacture
If components are coupled to frame rails, then the vehicle achieves proper component arrangement, but sequential assembly is required which reduces productivity
Solution Approach 1:
The patent segments the vehicle into modular components (passenger capsule, front module, rear module) that can be independently manufactured and then quickly assembled. The monocoque hull serves as a self-contained module with integrated mounting points, allowing parallel production of multiple modules and reducing sequential assembly requirements, thereby improving productivity.
Data Source
AI summary
A military vehicle includes a passenger capsule, a front module coupled to a front end of the passenger capsule, and a rear module coupled to a rear end of the passenger capsule. The passenger capsule has a frame rail-less monocoque hull structure. The front module includes a front axle, a front differential coupled to the front axle, and a prime mover. The rear module includes a rear axle and a transaxle coupled to the prime mover, the rear axle, and the front differential.