The Role of Air Damping in Synthesized Damping of Litchi Tree Vibration

Abstract:

In order to analyze the role of air damping in synthesized damping of litchi tree vibration, the fruit tree was simplified into a cantilever firstly. Then, according to equations of equivalent stiffness, equivalent damping, and equivalent mass, the damping ratio of air resistance was analyzed. The results showed that such damping ratio increases with the height of canopy center and the canopy size, and decreases with canopy mass and trunk radius. Within normal trunk radius, trunk length, canopy size, and canopy mass range, the damping ratio of air resistance is much smaller than 1.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 2041-2044
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.2041
• Online since: February 2013
• Authors: Tian Hu Liu, Yu Xiang Luo
• Keywords: Air Damping, Litchi Tree, Vibration

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