钢丝绳的拉伸疲劳性能

介绍了钢丝绳位伸疲劳试验的有关技术问题及研究成果，设计成功的钢丝绳与试验机联接的专用锚具、优化出的一套试验室条件下的绳头浇铸工艺，可应用于相关研究工作；研究得到的Ｓ－Ｎ曲线族及其曲线方程Ｇｏｏｄｍａｎ－Ｓｍｉｔｈ图和疲劳强度计算经验公式、钢丝绳的拉伸疲劳性能和疲劳破坏规律、从宏、微观两个对钢丝绳疲劳进行的初步研究等等，对钢丝绳结构工程设计人员具有一定的参考价值。

The Tensile Fatigue Performance of Steel Ropes

Some relevant tehnical questions and achievements on the research of tensile fatigue test of steel ropes are discussed.The successfully designed steel ropes with the specialized ground tackle,which is used to connect with experimental machine,together with a set of revised casting technology of steel rope ends that used in labs can be used in relevant researches.In the research the following significant achievements are made:a set of S-N diagrams and their equations,Goodman Smith figures and an empirical formula on how to calculate fatigue strength,the tensile fatgue performance and the law of the fatigue breakdown of steel ropes.With these achievents the paper made teth macrosopic and microscopic researches on the mechanism of the fatigue breakdown of steel ropes.The paper is valuable to project designers who are responsible for the structure of steel ropes.