一、序言光弹性实验方法的特点是直观性强,可以直接观察和获得零件的应力分布情况。特别是能直接看到应力的集中部位,较准确地求出零件的应力集中系数。从而,可从强度的观点改进设计,寻求合理的几何形状和尺寸。滚柱式超越离合器套环形状极不规则,其工作应力很难进行精确的计算。由于超越离合器是一种量大面广的产品,采用光弹性实验方法测出其真实的应力状态,对改进产品设计,提高产品质量具有较大的经济意 First, the preamble Photoelastic experimental method is characterized by intuitive, you can directly observe and obtain the stress distribution of the parts. In particular, can directly see the stress concentration of parts, more accurately calculate the stress concentration factor of the part. Thus, the design can be improved from the point of view of strength, seeking a reasonable geometry and size. Roller overrunning clutch collar shape is extremely irregular, its working stress is difficult to accurately calculate. As the overrunning clutch is a large quantity of products, using the photoelastic experiment method to measure the true stress state, it is more economical to improve product design and product quality