A heavy load tire six-component force sensor

Abstract

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.