Vibratory Fruit Harvesting: High speed video of apple fruit-stem response to forcing direction and frequency
Loading...
No Access Until
Permanent Link(s)
Collections
Other Titles
Author(s)
Abstract
This high-speed video (10x) of an apple fruit-stem subjected to gradually increasing periodic excitation at the upper end of the stem (where attached to the tree branch) provides excellent experimental agreement with the numerically integrated equations of motion for forced oscillation. This double physical pendulum model confirms the predicted nonlinear normal mode behavior for apples being harvested using an inertial shaking device.
Journal / Series
Volume & Issue
Description
CONTENTS OF THE VIDEO CLIPS -- A. One-half inch, peak-to-peak displacement
Clip 1. Horizontal displacements of one-half inch, peak-to-peak with forcing frequency gradually increasing from 120 to 450 cycles per minute in 22 seconds.
Clip 2: Vertical displacements of one-half inch, peak-to-peak with forcing frequency gradually increasing from 150 to 590 cycles per minute in 21 seconds.
Clip 3: Circular displacements (simultaneous horizontal and vertical) of one-half inch, peak-to-peak with forcing frequency gradually increasing from 110 to 535 cycles per minute in 27 seconds. Clip 4: Linear displacements at 45 degrees to horizontal (simultaneous horizontal and vertical) of one-half inch, peak-to-peak with forcing frequency gradually increased from 125 to 590 cycles per minutes in 27 seconds. B. One inch, peak-to-peak displacement Clip 5: Horizontal displacements of one inch, peak-to-peak [larger amplitude] with forcing frequency gradually increasing from 100 to 465 cycles per minute in 25 seconds.
This video was created as part of a Master of Science Thesis presented to the Graduate School of Cornell University: Parchomchuk, Peter. 1971. Vibratory Fruit Harvesting: An Experimental Investigation of an Apple Fruit-Stem Response to Forced Oscillation. (Note: This thesis provides the context for this video)
This video was created as part of a Master of Science Thesis presented to the Graduate School of Cornell University: Parchomchuk, Peter. 1971. Vibratory Fruit Harvesting: An Experimental Investigation of an Apple Fruit-Stem Response to Forced Oscillation. (Note: This thesis provides the context for this video)
Sponsorship
Date Issued
1971
Publisher
Cornell University
Keywords
Location
Effective Date
Expiration Date
Sector
Employer
Union
Union Local
NAICS
Number of Workers
Committee Chair
Committee Co-Chair
Committee Member
Degree Discipline
Degree Name
Degree Level
Related Version
Related DOI
Related To
Related Part
Based on Related Item
Has Other Format(s)
Part of Related Item
Related To
Related Publication(s)
Parchomchuk, Peter. VIBRATORY FRUIT HARVESTING: AN EXPERIMENTAL INVESTIGATION OF AN APPLE FRUIT-STEM RESPONSE TO FORCED OSCILLATIONS. Cornell University thesis, 1971.
Link(s) to Related Publication(s)
References
Link(s) to Reference(s)
Previously Published As
Government Document
ISBN
ISMN
ISSN
Other Identifiers
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International
Types
video/moving image