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蜗杆传动的变形理论与实验研究，属于典型的复杂空间曲面的三维接触问题．作者首次使用植入式三维应变丝的传感测试技术，测试了蜗杆传动的接触应力．文中还介绍了测试装置、三维应变测试单元的制作和浇铸．实验测试结果与数值分析结果吻合良好
Worm drive deformation theory and experimental research belong to the typical three-dimensional contact problem of complex space and surface. For the first time, the authors tested the contact stress of worm drive using the sensing test technology of implantable three-dimensional strain wire. The article also introduces the test device, the manufacture and casting of three-dimensional strain test unit. The experimental results are in good agreement with the numerical results