Actuator Frame Structure Volume Change Part High Output
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Solution Overview
Problem
Conventional actuators face a challenge in achieving high output due to the trade-off between materials that generate large distortion and those with high Young's modulus, as materials with high Young's modulus typically produce small distortion, while those with large distortion have low Young's modulus.
Innovation Solution
The actuator design incorporates a frame structure part with a higher Young's modulus and a volume change part that increases in volume upon external energy input, allowing the frame structure to deform and contract in one direction while widening in another, thereby enhancing distortion and output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If materials with high Young's modulus are used for the actuator, then strength and rigidity are improved, but distortion capability deteriorates
Solution Approach 1:
The actuator is divided into two distinct parts: a frame structure part made from high Young's modulus material for strength, and a volume change part made from low Young's modulus material for large distortion capability. This segmentation allows each part to be optimized for its specific function, resolving the contradiction between strength and distortion capability.
Solution Approach 2:
The actuator uses a composite structure combining two materials with different Young's modulus values. The frame structure part uses high Young's modulus material while the volume change part uses low Young's modulus material, creating a composite system that achieves both high strength and large distortion capability simultaneously.
2Shape
If materials with low Young's modulus are used for the actuator, then distortion capability is improved, but strength deteriorates
Solution Approach 1:
The actuator is divided into two distinct parts: a frame structure part made from high Young's modulus material for strength, and a volume change part made from low Young's modulus material for large distortion capability. This segmentation allows each part to be optimized for its specific function, resolving the contradiction between strength and distortion capability.
Solution Approach 2:
The actuator uses a composite structure combining two materials with different Young's modulus values. The frame structure part uses high Young's modulus material while the volume change part uses low Young's modulus material, creating a composite system that achieves both high strength and large distortion capability simultaneously.
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 the actuator to achieve high output by combining the properties of large distortion and high Young's modulus, exceeding the capabilities of actuators using only one type of material for the frame or volume change part.
Implementation Method 1
the volume change part increases a volume thereof by external input
Data Source
AI summary
An actuator capable of attaining high output. The actuator includes a frame structure part that forms a frame structure surrounding a housing part, and a volume change part housed in the housing part. The volume change part increases a volume thereof by input of external energy. The frame structure part has a higher Young's modulus than a Young's modulus of the volume change part. The housing part has an anisotropic shape, with a maximum width in first direction of the housing part longer than a maximum width in second direction different from the first direction of the housing part.