Title :
Analysis for mechanics model of wheat and random vibration
Author :
Qicheng Xu ; Changchun Sun
Author_Institution :
Shenyang Jianzhu Univ., Shenyang, China
Abstract :
Wind acting on ear of wheat is separated into mean wind and fluctuating wind in this paper. Total effect of the wind direction is a linear combination on the effect of the average wind and the effect of fluctuating wind in downwind direction. By utilizing a typical power spectral density of Davenport horizontal wind speed in fluctuating wind, downwind movement model of wheat is constructed. Based on random vibration theory to solve equations, displacement response of wheat is obtained. Lodging bending moments produced by wind on the bottom of the wheat are also calculated further.
Keywords :
bending; crops; vibrations; wind; Davenport horizontal wind speed; average wind; fluctuating wind; lodging bending moments; mean wind; power spectral density; random vibration; wheat displacement response; wheat downwind movement model; wheat ear; wheat mechanics model; wind direction; Agriculture; Analytical models; Ear; Force; Mathematical model; Vibrations; Wind speed; Displacement Response; Fluctuating Wind; Mean Wind; Random Vibration; Wheat;
Conference_Titel :
Control and Decision Conference (CCDC), 2015 27th Chinese
Conference_Location :
Qingdao
Print_ISBN :
978-1-4799-7016-2
DOI :
10.1109/CCDC.2015.7162630
