电子科技大学学报Issue(2)：316-320,5.DOI:10.3969/j.issn.1001-0548.2013.02.026
基于广义σ-N曲面的涡轮盘疲劳寿命预测
Turbine Disk Fatigue Life Prediction Based on Generalizedσ-N Surface
摘要
Abstract
On the basis of theσ-N curved surface, the fatigue life of turbine disk is investigated in this paper by constructing Goodman and Gerber types of generalizedσ-N curved surface equation based on stress amplitude and mean stress. An example of an aircraft engine turbine disk is presented to validate the proposed method, and the results show that the prediction from Goodman equivalent life curve is much better than that of Gerber type model. In addition, there is no need to equivalently convert the cyclic stress in above method. This method can improve the accuracy of fatigue life estimation.关键词
疲劳寿命/Miner准则/名义应力法/S-N曲线/σ-N曲面Key words
fatigue life/Miner criterion/nominal stress method/S-N curve/σ-N surface分类
航空航天引用本文复制引用
廖强,黄洪钟,朱顺鹏,何俐萍,凌丹..基于广义σ-N曲面的涡轮盘疲劳寿命预测[J].电子科技大学学报,2013,(2):316-320,5.基金项目
国家自然科学基金(51075061) （51075061）
教育部高等学校博士学科点专项科研基金(20090185110019) （20090185110019）
