Abstract
A convenient and feasible tractor frame external load collection technology is proposed in this paper. Based on the frame structural and force characteristic, the sensors for the load measurement are designed, and the mathematical relationship between the loading force and the sensor output voltage and the displacement signal is obtained. On this basis, the theoretical calculation model of the frame external load is established. Based on the dynamic test load spectrum data of the frame, the virtual strain at the locations (L1 and L2) is obtained through simulation. The comparison between the virtual strain and the actual strain shows that the frame external load data is reasonable, which proves that the load collection technology is credible and can provide data support for tractor design and optimization.
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