针对筒型弹性元件用于扭矩测量的问题，运用材料力学理论进行分析，计算出在扭矩作用下标准空心圆柱表面最大应变值的位置。利用 ANSYS 对标准空心圆柱进行仿真分析，提出一种提取模型上节点的任意方向应变仿真值的方法，并验证仿真准确性。对筒形测力传感器进行仿真，并结合理论分析提取粘贴应变片的最佳位置。设计一种使该传感器进行扭矩动态测量时抗拉力和弯矩影响的测量电路，从而实现扭矩的精确测量，提高筒型测力传感器的精度。本文方法对复杂结构的相关运算具有一定的指导作用。%Aiming at the problem of torque measurement with the cylinder type elastic element,the analysis was carried out with the material mechanics theory,and the position of maximum strain value on the surface of standard hollow cylinder under the action of torque was calculated.In addition,the standard hollow cylinder was simulated with ANSYS,a method of extracting the strain values of nodes in arbitrary direction in the model was proposed,and the simulation accuracy was verified.The cylinder type force sensor was simulated,and the optimal position for sticking strain gauge was extracted in combination with the theoretical analysis.A measurement circuit,which could help the proposed sensor eliminate the effect of tension and bending moment during the dynamic measurement,was designed.Therefore,the accurate measurement of torque can be realized,and the precision of cylinder type force sensor can be improved.The proposed method can play a guiding role in the related operation of complex structures.
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