Expandable Collar Ballute Kinetic Kill Vehicle Interception
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current ballistic missile defense systems face challenges in achieving precise navigation for kinetic kill vehicles (KKVs) due to the high speeds and small sizes of re-entry vehicles, requiring a CEP of less than a fraction of a meter for effective collision, which complicates design and increases costs.
Innovation Solution
The deployment of an expandable collar composed of inflatable ballutes on the kill vehicle, which increases the cross-sectional area, allowing for a higher probability of collision by inflating shortly before impact, utilizing automotive airbag technology and materials, and incorporating explosive charges and hard masses for enhanced impact effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a kinetic kill vehicle uses a small cross-sectional area for interception, then the navigation precision requirements become extremely stringent (CEP less than a fraction of a meter), but this increases system complexity and cost
Solution Approach 1:
The kill vehicle employs a dynamically expandable collar structure that transitions from a compact configuration during approach to an expanded configuration during interception. This dynamic transformation allows the vehicle to maintain small cross-sectional area during navigation (reducing complexity requirements) while achieving large cross-sectional area during collision (improving interception probability), thereby resolving the contradiction between navigation precision requirements and system complexity
Solution Approach 2:
The expandable collar is nested within the kill vehicle body in a compact form during approach, similar to a nested doll structure. When deployed, it expands outward to increase the effective cross-sectional area. This nesting principle allows the system to maintain low complexity during navigation while achieving high interception probability during collision, addressing the technical contradiction
2Reliability
If the kill vehicle maintains a small size for navigation, then system complexity is reduced, but the probability of collision with the target decreases
Solution Approach 1:
The vehicle structure transitions dynamically from a simple compact form during navigation to a complex expanded form during interception. The collar expands at the optimal moment to maximize collision probability, then can be discarded or deactivated. This dynamic approach allows the system to achieve high reliability without permanently increasing vehicle structure complexity
Solution Approach 2:
The expandable collar is deployed only when needed for the final interception phase, then discarded or deactivated. This temporary deployment strategy allows the system to achieve high collision probability during the critical interception window without carrying the complexity of a permanently expanded structure, resolving the contradiction between collision probability and vehicle structure complexity
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 expandable collar significantly increases the chances of collision with re-entry vehicles, improving the probability of destruction while reducing the need for precise navigation, thereby simplifying system design and reducing costs.
Implementation Method 1
The deployment of an expandable collar composed of inflatable ballutes on the kill vehicle, which increases the cross-sectional area, allowing for a higher probability of collision by inflating shortly before impact
Implementation Method 2
incorporating explosive charges and hard masses for enhanced impact effectiveness
Data Source
AI summary
A vehicle may include a vehicle body maneuverable onto a near collision course with a target and a plurality of inflatable ballutes which, when inflated, extend generally radially from the vehicle body. A controller may cause the ballutes to be inflated prior to an anticipated time of collision with the target. A plurality of explosive charges may be attached to at least some of the ballutes. A detonation controller may be coupled to the controller and to the plurality of explosive charges.