前言电机组合转子的三向光弹性试验主要是对组合转子的三大件端轴、圆盘及中心螺杆进行应力分析。该三件由中心螺杆以螺纹联结方式组合而成,各螺牙的载荷分配的测定也是本试验目的之一。中心螺杆受予紧拉力,转子受旋转引起的离心力,因此,光弹试验也必须如实 Introduction The three-way photoelasticity test of the motor combination rotor is mainly for the stress analysis of the three-piece end shaft, disk and center screw of the combined rotor. The three pieces by the central screw thread combination of the way, the determination of the load distribution of each thread is also one of the objectives of this test. Center screw subject to tight tension, the rotor caused by the centrifugal force of rotation, therefore, the photoelastic test must be truthful