Payload Stabilizer with Magnetic Coupling for Launch Reliability
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Solution Overview
Problem
Conventional launch locks for spacecraft payloads are unreliable due to temperature variations, vacuum exposure, and mechanical vibrations, which can cause release mechanisms to fail or become stuck, and they are difficult to re-lock for return to earth, rendering the payload useless.
Innovation Solution
A payload transport stabilizer with a frame, payload guide, balance mass assembly, and coupling mechanism that uses a parallelogram linkage or lever linkage to counteract inertial forces, allowing the payload to move without relative motion to the spacecraft, overcoming the issues of release and re-locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional launch lock is used to rigidly hold the payload in place, then the payload is protected from damage during launch, but the release mechanism may fail or get stuck due to temperature variations, vacuum exposure, and mechanical vibrations
Solution Approach 1:
The patent replaces the conventional mechanical release mechanism with a magnetic field-based system. Magnets embedded in the payload and counterbalancing assembly interact through magnetic attraction to provide locking and release functions without mechanical contact, eliminating the problems of cold welding and mechanical failure in vacuum environments.
Solution Approach 2:
The patent introduces magnetic fields as an intermediary between the payload and the counterbalancing assembly. This magnetic intermediary allows for reliable coupling and decoupling without direct mechanical contact, solving the reliability issues of conventional mechanical release mechanisms in harsh space environments.
2Adaptability or versatility
If a one-way release mechanism is used, then the payload can be released after launch, but re-locking for return to earth is impossible
Solution Approach 1:
The magnetic coupling system serves multiple functions: it provides initial locking, enables release after launch, and allows re-locking for return to earth. The same magnetic interaction mechanism works bidirectionally, making the system universal and adaptable for different mission phases without requiring separate one-way and two-way mechanisms.
3Stability of the object's composition
If a rigid launch lock is used to prevent payload movement, then the payload is stabilized during launch, but the release mechanism becomes unreliable under intense mechanical vibrations
Solution Approach 1:
The patent replaces the rigid mechanical launch lock with a magnetic field-based coupling system. The magnetic attraction provides stable payload retention during launch vibrations without the mechanical contact that leads to cold welding and failure, maintaining stability while improving release reliability.
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 payload transport stabilizer effectively stabilizes the payload during launch and re-entry by preventing relative motion due to inertial forces, ensuring the payload's safety and enabling deliberate movement without affecting the spacecraft's structure or center of mass.
Implementation Method 1
an acceleration of the frame causes the payload and the balance mass to act one another via the coupling mechanism, such that movement of the payload along the payload guide path (and movement of the balance mass along the balance mass guide path) due to said acceleration is prevented
Data Source
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AI summary
A payload transport stabilizer (1), comprising: · a frame (10); a payload assembly (100), including a payload guide (104) that is connected to the frame (10) and that defines a payload guide path (106), and a payload (102) that is connected to the payload guide such that it is moveable along the payload guide path; · a balance mass assembly (200), including a balance mass guide (204) that is connected to the frame (10) and that defines a balance mass guide path (206), and a balance mass (202) that is connected to the balance mass guide such that it is moveable along the balance mass guide path;. a coupling mechanism (300, 400) that interconnects the payload (102) and the balance mass (202), such that positions of the payload and the balance mass along their respective guide paths (106, 206) are mutually coupled.