Rotating Gravity Chamber with Extendible Connectors
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Solution Overview
Problem
Extended exposure to zero-gravity environments in space stations can lead to detrimental health effects such as muscle and bone degeneration, necessitating the creation of artificial gravity environments to ensure the health and comfort of human occupants.
Innovation Solution
A habitation module with a stationary structure and a rotating structure that includes gravity chambers, where the rotating structure is driven to create centrifugal force, simulating a gravitational pull, and features extendible connectors and counter-rotating members to maintain balance and adjust for changes in mass within the gravity chambers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotating structure with gravity chambers is used to create artificial gravity, then health benefits are improved, but device complexity increases
Solution Approach 1:
The rotating structure is divided into multiple independent gravity chambers that can be separately attached to platforms using extendible connectors. Each chamber can be independently berthed to platforms at different locations, allowing modular assembly and reducing overall system complexity while providing multiple artificial gravity environments simultaneously
Solution Approach 2:
The extendible connectors dynamically adjust the distance between gravity chambers and platforms during rotation, contracting during berthing operations and extending during rotational operations. This dynamic adjustment allows the system to adapt between different operational states (berthing vs. rotation) without requiring complex mechanical constraints
2Reliability
If gravity chambers are attached to rotating platforms, then artificial gravity is generated, but clearance requirements increase
Solution Approach 1:
The extendible connectors dynamically change length based on operational phase: they contract to minimal length during berthing operations to minimize clearance requirements, and extend to provide necessary clearance between gravity chambers and platforms when the rotating structure is in operation. This dynamic adjustment eliminates the need to design for maximum clearance in all states
3Adaptability or versatility
If extendible connectors are used to attach gravity chambers to platforms, then berthing flexibility is improved, but mechanism complexity increases
Solution Approach 1:
Counter-rotating members are introduced to balance the rotational mass of the gravity chambers and platforms. These counter-rotating members rotate in the opposite direction at the same speed, canceling out the centrifugal forces and moments generated by the main rotating structure, thereby reducing bearing loads and improving system stability without compromising berthing flexibility
Solution Approach 2:
The extendible connectors serve as intermediary elements between the stationary platforms and the rotating gravity chambers. They provide a transitional mechanism that allows both structures to move independently while maintaining connection, enabling berthing flexibility without requiring complex rigid coupling mechanisms
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 habitation module effectively provides an artificial gravity environment, mitigating health risks associated with zero-gravity exposure by simulating gravitational forces, allowing for comfortable activities and maintaining balance through adjustable rotation and counter-rotation mechanisms.
Implementation Method 1
The rotating structure is driven to create centrifugal force, simulating a gravitational pull
Implementation Method 2
The linear actuator comprises a ball screw... configured to extend and contract to vary a distance between the base plate and the coupling mechanism
Implementation Method 3
The linear actuator comprises a ball screw
Data Source
AI summary
A habitation module that provides an artificial gravity environment. In one embodiment, the habitation module includes a stationary structure including a hub having a plurality of portals spaced radially around an outer cylindrical surface of the hub, and a rotating structure that attaches to the outer cylindrical surface of the hub using rotatable attachment members to rotate about an axis in relation to the hub. The rotating structure includes a platform that attaches to the rotatable attachment members and is configured to revolve around the outer cylindrical surface of the hub on the rotatable attachment members. The rotating structure also includes a gravity chamber that attaches to the platform, and projects radially from the axis. A drive mechanism is configured to rotate the rotating structure about the axis in relation to the hub to simulate a gravitational force within the gravity chamber.