Zuoping Yao, Yong Wei, Juncheng Lv
SAIC GM Wuling Automobile Co., Ltd., No.18 Hexi Road, Liunan District, Liuzhou, Guangxi Zhuang Autonomous Region, 545007, China
This paper presents research on design and calibration of a heavy load tire six-component force (including three forces and three moments) sensor. Differ from common tire six-component force sensor, it is designed mainly for truck tire and aircraft tire test. With a four-column structure in its elastic body, size thinning in the middle of every column is designed to get a higher sensitivity in Fy channel. Before fabricating, the ‘virtual calibration’ is carried out, which proves that the design scheme of strain gauge position and elastic body matches well with each other. For there is low crosstalk between every two output channels. The calibration experiment results are not entirely the same as that in ‘virtual calibration’, for factors such as material heat treatment, machining accuracy and the quality of pasting strain gauges increase crosstalks. With decoupling calculation, a high-accuracy heavy load tire six-component force sensor is still obtained.
heavy load, six-component force sensor, virtual calibration, decoupling calculation
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