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Calculation and accuracy analysis of center of gravity of payload rack

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5 Author(s)
Yu Cao ; Coll. of Autom., Harbin Univ. of Sci. & Technol., Harbin, China ; Aihua Shen ; Jiazhong Xu ; Ming Qiao
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In order to measure center of gravity of payload rack, a method is put forward to solve this problem by theory of torque balance in rotating coordinate system. Forward computation is used to calculate the weight and center of gravity of payload rack. Then makes an accuracy analysis of this method by inverse computation which focuses on calculating sensor readings including maximum expected errors, and finally makes an accuracy comparison when the payload rack weight is 10000 N and 1000 N. The results show that: if the accuracy of the sensors is 0.01%, measured weight is within 0.3% of actual weight, each of measured center of gravity is within 3 mm of actual center of gravity, and higher accuracy could be achieved by further increasing the weight of the rack under the same condition.

Published in:

Strategic Technology (IFOST), 2011 6th International Forum on  (Volume:2 )

Date of Conference:

22-24 Aug. 2011