Counting method of stress and application in fatigue life prediction of pump

被引：0

作者：

Gao J. ^{[1
]}

Wang F. ^{[1
]}

Zhang Z. ^{[2
]}

机构：

[1] College of Water Conservancy and Civil Engineering, China Agricultural University

[2] China Institute of Water Resources and Hydropower Research

来源：

Nongye Jixie Xuebao/Transactions of the Chinese Society of Agricultural Machinery | 2010年 / 41卷 / SUPPL. 1期

关键词：

Cycle counting; Fatigue life; Life prediction; Miner-rule; Pump;

D O I：

10.3969/j.issn.1000-1298.2010.Supp.006

中图分类号：

学科分类号：

摘要：

The life prediction of the pump and the counting method of stress were the subjects of this investigation. Aiming at the defect of the previous consideration that failed in attempts to count stress cycles, the concept of critical net stress was proposed to modify the counting principle. The improvements were made based on the concept of critical net stress. The improved counting method for predicting the fatigue life of an axial flow pump impeller was implemented. In addition, the key steps of the fatigue life prediction method were introduced based on 2-D probabilistic Miner-rule.

引用

页码：27 / 31+38