Boom Locking Mechanism for Deployable Structures
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Solution Overview
Problem
Existing boom deployment mechanisms lack an efficient and secure method to transition from a stowed, flattened configuration to a deployed, tubular configuration and secure the proximal end of the boom during deployment.
Innovation Solution
A boom deployment mechanism that includes a tubular boom with a slit, a root plug, and a locking mechanism, where the locking mechanism uses clamps and levers or a shaft to securely attach the proximal end of the boom to the root plug, allowing for reliable deployment and stowage, with optional motor assistance for engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a boom is designed to be deployable from a stowed configuration to a deployed configuration, then the boom can be compactly stored and deployed when needed, but the mechanism becomes complex and requires reliable locking to maintain structural integrity during deployment
Solution Approach 1:
The locking mechanism is designed to automatically engage and lock the boom in its deployed configuration through self-latching action, eliminating the need for complex external locking systems or manual intervention. The boom's own structural elements serve as both the moving component and the locking component.
Solution Approach 2:
The locking mechanism is divided into distinct functional segments: the root plug with locking surface, the proximal end of the boom with engagement features, and the clamps. This segmentation allows each component to perform its specific function independently while contributing to the overall locking system.
2Reliability
If the proximal end of the boom is securely locked to the root plug during deployment, then structural integrity and reliability are improved, but the mechanism for achieving and maintaining this lock becomes more complex
Solution Approach 1:
The locking mechanism uses self-latching features where the boom's proximal end automatically engages with the root plug's locking surface through spring-loaded clamps or lever action. Once engaged, the system maintains its own locked state without requiring continuous external force or complex control systems.
Solution Approach 2:
The locking mechanism incorporates pre-loaded springs and tension elements that are pre-positioned to provide immediate locking force when the boom transitions to its deployed configuration. This ensures reliable engagement before any operational loads are applied to the boom.
3Volume of moving object
If the boom is flattened and rolled for stowage, then the storage space required is reduced, but the mechanism for transitioning between flattened and tubular configurations becomes more complex
Solution Approach 1:
The boom is designed as a dynamic structure that can transition between static configurations. The tubular boom with longitudinal slit can be elastically deformed into a flattened state for stowage and then returned to its rigid tubular shape for deployment, with the locking mechanism adapting to secure the boom in either state.
Solution Approach 2:
The boom utilizes a flexible tubular structure with a longitudinal slit that allows it to be collapsed and flattened for compact stowage. The flexibility of the tubular shell enables easy transition between configurations while maintaining structural integrity during deployment.
4Reliability
If a locking mechanism is added to secure the boom during deployment, then the reliability of the deployed configuration is improved, but the ease of operation for deploying and stowing the boom is reduced
Solution Approach 1:
The locking mechanism operates automatically through spring-loaded clamps or lever action that engage when the boom transitions to its deployed configuration. The system self-locks without requiring manual intervention, maintaining reliability while preserving ease of operation.
Solution Approach 2:
The locking mechanism replaces complex multi-component mechanical locking systems with simpler spring-loaded clamps or lever-based engagement features that automatically secure the boom. This substitution reduces operational complexity while maintaining secure locking.
Data Source
AI summary
A boom deployment mechanism is disclosed. The boom deployment mechanism may include a boom, a root plug, and a locking mechanism. In some embodiments, the boom may have a proximal end and a distal end. The boom may have a deployed configuration where the boom has a tubular shape with a slit that extends along the longitudinal length of the boom from the proximal end of the boom to the distal end of the boom. The boom may have a stowed configuration where the boom is flattened and rolled. In some embodiments, the locking mechanism may be configured to secure the proximal end of the boom to the root plug when the boom is in a deployed configuration.