Magic Angle Spinning Tilt Linkage for Thermal Contraction
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Solution Overview
Problem
Existing MAS apparatuses fail to properly adjust the tilt angle during cooling due to thermal contraction of parts, leading to malfunction of the angle adjustment mechanism.
Innovation Solution
The MAS apparatus incorporates a connection mechanism with a first movable part moving in linear motion and a second movable part moving in an arc motion, featuring an elongated hole and a shaft member that allows for sliding motion during thermal contraction, converting linear motion into arc motion and absorbing positional changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the angle adjustment mechanism is designed with fixed rigid connections, then the structure is simple and strong, but the mechanism cannot accommodate thermal contraction during cooling and will malfunction
Solution Approach 1:
The connection mechanism changes its physical parameters (relative position between components) in response to temperature changes. The elongated hole allows the shaft member to slide, changing the effective length and configuration of the connection to accommodate thermal contraction, thus maintaining operation reliability without excessive complexity
Solution Approach 2:
The connection mechanism transitions from a static rigid connection to a dynamic adjustable connection. The shaft member can move within the elongated hole, allowing the mechanism to adapt its configuration dynamically during cooling processes to maintain proper operation
2Adaptability or versatility
If the connection mechanism allows sliding motion to accommodate thermal contraction, then the mechanism remains functional during cooling, but the structure becomes more complex
Solution Approach 1:
The mechanism adapts to temperature changes by allowing parameter changes in the connection geometry. The elongated hole enables the shaft member position to change, accommodating thermal contraction while maintaining a relatively simple overall structure
Solution Approach 2:
The connection mechanism is segmented into movable components (shaft member) and stationary components (elongated hole). This segmentation allows independent movement of parts to accommodate thermal effects while keeping each component relatively simple in structure
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 configuration enables smooth tilt angle adjustment and prevents excessive stress on parts, ensuring proper operation of the angle adjustment mechanism even after cooling, allowing precise alignment with the magic angle.
Implementation Method 1
the shaft member is caused to move in a sliding motion against the elongated hole
Implementation Method 2
when a positional relationship between the elongated hole and the shaft member changes due to thermal contraction of the MAS apparatus during a process of cooling the MAS apparatus
Data Source
AI summary
An angle adjustment mechanism has a block, a projecting piece, and a connection mechanism. The projecting piece is fixed to a stator. The connection mechanism has elongated holes provided in the block and a shaft member provided in the projecting piece. The shaft member is inserted in the elongated holes. During a tilt angle adjustment process, the shaft member is caused to move in a sliding motion in the elongated holes. During a cooling process, the shaft member is also caused to move in a sliding motion in the elongated holes.