Coiled actuator system and method
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Solution Overview
Problem
Conventional yarn production machinery struggles to reliably produce coiled fiber or yarn actuators with controlled geometry due to sensitivity to ambient conditions and production parameters, limiting the production of highly twisted and coiled fibers with desirable thermal response.
Innovation Solution
The development of novel machines and methods that allow for precise control of yarn tension, feed rate, twist insertion, and coil geometry, including the use of sacrificial materials and core winding techniques, to produce coiled actuators with tunable thermal response and geometry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional yarn production machinery is used, then production process is simple, but manufacturing precision of coil geometry is poor
Solution Approach 1:
The production process is divided into distinct functional modules: yarn feeding system, twisting mechanism, coiling system, and tension control system. Each module independently controls a specific aspect of coil formation, enabling precise geometry control while maintaining overall process simplicity.
Solution Approach 2:
Yarn is pre-twisted to the desired twist level before entering the coiling mechanism. This preliminary twisting action ensures that the yarn has the correct structural properties before coiling begins, reducing variability in the final coil geometry and improving manufacturing precision.
2Reliability
If ambient conditions and production parameters are not controlled, then ease of operation is high, but reliability of coiled actuator production is poor
Solution Approach 1:
Sensors monitor yarn tension, feed rate, and coil formation in real-time, providing feedback to the control system. The system automatically adjusts production parameters to compensate for ambient condition variations, ensuring consistent coil geometry and high production reliability without requiring complex manual intervention.
Solution Approach 2:
The production system includes automated tension control and feed rate regulation that self-adjust based on detected conditions. The machinery monitors its own operation and makes corrections without external intervention, maintaining reliability while preserving ease of operation.
3Adaptability or versatility
If highly twisted and coiled fibers are produced, then thermal response is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The system enables independent adjustment of twist level and coiling parameters to optimize thermal response. By controlling the twist insertion rate and coiling speed as separate parameters, the system achieves highly twisted coils with enhanced thermal response while maintaining precise geometry control through coordinated parameter management.
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
Enables the production of coiled fiber actuators with enhanced thermal response and controlled geometry, overcoming the limitations of conventional machines and achieving desirable properties for applications in textiles and environmental responsiveness.
Implementation Method 1
coiled actuators with tunable thermal response
Data Source
AI summary
A method of generating a coiled actuator fiber that includes twisting a fiber to generate a twisted fiber; wrapping the twisted fiber around a core yarn or fiber to generate a coil in the twisted fiber, which generates a coiled twisted fiber; setting the coiled twisted fiber by heat or chemical treatment; and removing at least a portion of the core yarn or fiber to generate a coiled actuator fiber.