Vehicle Floor Blast Decoupling via Explosive Separable Connections
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Solution Overview
Problem
Existing armored vehicles fail to effectively protect occupants and equipment from the force of blast waves generated by mine detonations, as the energy of the blast wave is transmitted to the floor and seats, causing injury or damage.
Innovation Solution
The vehicle's floor is mechanically released from its suspension and allowed to move freely during a blast wave, using separable connections that break rapidly, typically within 1-2 milliseconds, to decouple the floor from the blast wave, with a sensor system detecting the wave and igniting explosive charges to achieve this decoupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the floor is rigidly attached to the vehicle body, then structural stability is improved, but the floor becomes vulnerable to blast wave forces causing injury and damage
Solution Approach 1:
The floor attachment system transitions from a static rigid connection to a dynamic separable connection. The floor is normally securely attached to provide structural stability, but can rapidly separate when a blast wave is detected, allowing the floor to move freely and avoid blast forces. This dynamic adaptability resolves the contradiction between needing structural stability and avoiding blast wave impact.
Solution Approach 2:
The sensor system detects the approaching blast wave and triggers the explosive charges to break the separable connections before the blast wave reaches the floor. This preliminary action of pre-separating the floor from the vehicle body eliminates the harmful blast wave impact while maintaining structural integrity during normal operation.
2Object-affected harmful factors
If separable connections are used to protect from blast waves, then protection against explosion is improved, but the response time must be extremely short (less than 1-2 ms) to be effective
Solution Approach 1:
The mechanical separable connections using explosive charges replace inert mechanical systems like shearing pins. The explosive charges respond to electrical signals with extremely fast reaction times (less than 1-2 ms), whereas mechanical systems would be too slow to break connections before the destructive blast wave arrives. This substitution enables the required rapid response time for effective explosion protection.
Solution Approach 2:
The sensor system acts as an intermediary between the approaching blast wave and the separable connections. It detects the blast wave's approach and triggers the explosive charges at the precise moment needed, coordinating the separation action to occur just before the destructive phase of the blast wave reaches the floor, thereby minimizing response time loss.
3Object-affected harmful factors
If the floor is allowed to move freely during blast, then shockproof protection is achieved, but the floor must be reconnected after the blast wave passes
Solution Approach 1:
The separable connection system is designed to automatically reconnect the floor to the vehicle body after the blast wave has passed. The connection mechanism performs the reconnection action itself without requiring external intervention, combining the functions of separation and reconnection in a single system that serves the protective purpose throughout the entire blast event sequence.
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
This solution provides shockproof protection by preventing the blast wave from reaching the floor, thereby minimizing the risk of injury or damage to occupants and equipment, while ensuring the floor's safe reconnection after the blast wave has passed.
Implementation Method 1
igniting explosive or pyrotechnical charges in the area of the separable connections
Implementation Method 2
A required sensor system serves to detect an arising shock wave, to measure and evaluate it
Implementation Method 3
the floor of the vehicle is mechanically released from a state of suspension and is, in the ideal case, in the state of free fall at the time of the arrival of the blast wave
Data Source
AI summary
The invention relates to a vehicle equipped with seats and/or equipment for use in areas in which the detonation of mines or the like are feared, wherein walls, floor and ceiling are provided with an arrangement that can withdraw energy from the blast wave of a detonation by deformation, and the floor is suspended only through ropes, rods or chains with separable connections. At least one pressure sensor and/or acceleration sensor is provided, which reacts to a blast wave, outputs a signal and ignites explosive charges thereby. The explosive charges (11) are arranged at the separable connections (8) and these are broken before the blast wave of a detonation has reached the floor (10).