文章列出了18-100型三件式转向架在车轮踏面出现剥落和不均匀磨损等形态和缺陷时,侧架和摇枕承载试验研究的结果。业已确定,当车轮踏面出现深度大于3 mm的剥离缺陷时,对侧架导框内弯角R55处(这是指最靠近带缺陷的车轮处)会引发超出侧架耐久极限σ_(-1)=45 Pa的应力。为此在评估深度大于3mm剥离缺陷的车辆时,建议用探伤仪对转向架侧架进行无损检测。 The article lists the test results of the side frame and the bolster when the 18-100 three-piece bogie is in the shape and defect such as flaking and uneven wear on the wheel tread. It has been determined that at the corner R55 of the side frame guide, which means the closest to the wheel with the defect, will cause the endurance limit σ_ (- 1) of the side frame to rise above the wheelbase when there is a peel defect with a depth greater than 3 mm = 45 Pa stress. For this purpose, it is recommended to inspect the bogie side frame non-destructively with a flaw detector when evaluating vehicles with peel defects greater than 3 mm in depth.