The Additional Side Force on the Force Transducer in the Combinatorial Load Cell

By the reason of the additional side force acting on the force transducers affecting the rotation effect of the combinatorial load cell,the paper describes the effect of the spherical plain thrust bearings structure on the additional side force. A three-dimensional finite element model of the late-model high-accuracy combinatorial load cell was established and analyzed. From the results, it shows that the magnitude of the additional side force fluctuation increases with the height of the bearing base increasing. At the same time, the magnitude decreases with the friction coefficient of the inner and outer ring of bearing increasing. The results provide guidance for the design of the combinatorial load cell.