Oscillatory Linear Actuator Vibration Reduction
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Solution Overview
Problem
Existing oscillatory linear actuators face challenges in reducing overall vibration while minimizing size, as positioning weights to align centers of mass increases the device's size due to large oscillating parts at opposite phases.
Innovation Solution
The oscillatory linear actuator design includes a first weight positioned opposite to the work part on the output movable element and a second weight on the vibration absorbing movable element, with the second weight disposed closer to the work part, allowing the centers of mass to be aligned closer, reducing both vibration and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If weights are positioned to align centers of mass of movable elements, then vibration is reduced, but device size increases due to large oscillating parts at opposite phases
Solution Approach 1:
The patent positions weights in different spatial dimensions to align centers of mass. The first weight is positioned at a first location on the output movable element, while the second weight is positioned at a second location on the vibration absorbing movable element, where the second location is in a direction different from the reciprocation direction. This dimensional approach allows center of mass alignment without requiring large oscillating parts, thus reducing vibration while maintaining compact size.
2Object-affected harmful factors
If large parts oscillating at opposite phases are concentrated to align centers of mass, then vibration is reduced, but device complexity increases
Solution Approach 1:
The patent divides the weight distribution into segmented components: a first weight at a first location on the output movable element and a second weight at a second location on the vibration absorbing movable element. This segmentation allows independent positioning of each weight to achieve center of mass alignment without requiring large concentrated oscillating parts, thereby reducing vibration while maintaining simpler overall 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 effectively reduces overall vibration and minimizes the size of the oscillatory linear actuator, achieving a more compact and efficient cutting device.
Implementation Method 1
a first driver which generates a thrust force which is reciprocated by a magnetic field
Implementation Method 2
a second driver which generates a thrust force which is reciprocated by a magnetic field
Data Source
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AI summary
An oscillatory linear actuator includes: an output movable element (101) which is reciprocated by a periodically varying magnetic field and performs work on an object; and a vibration absorbing movable element (102) which is reciprocated at a phase opposite to a phase of the output movable element (1.01) and reduces vibration of the oscillatory linear actuator. The output movable element (101) includes: a first driver (310) which generates a thrust force which is reciprocated by a magnetic field; a work part (32) which performs work on the object at a predetermined distance away from the first driver (310); a shaft (520) which connects the work part (32) and the first driver (310); a first weight (305) opposite to the work part (32) relative to the first driver (310); and a weight support (530) which connects the work part (32) and the first weight (305).