Zhang Zhao
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Academic Titles:Professor in Process Mechanics
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Department of Engineering Mechanics, Dalian University of Technology
Discipline:mechanics of manufacturing process. Engineering Mechanics. Computational Mechanics
Business Address:Room 619,Integrated Laboratory building (1#)
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Date:2019-03-10
Indexed by:Journal Article
Date of Publication:2015-09-01
Journal:机械研究与应用
Issue:4
Page Number:1-5
ISSN:1007-4414
Key Words:概率断裂力学;叶轮;蒙特卡洛法;疲劳寿命
Abstract:以概率论和断裂力学为基础，考虑参数的不确定性和随机性，应用蒙特卡洛方法对再制造叶轮的疲劳寿命进行分析。结果表明，采用蒙特卡洛方法进行的一定可靠度和置信度下的寿命预测反映了参数的不确定性，较传统的断裂力学计算结果更安全；初始裂纹尺寸、断裂韧性、变异系数、气动载荷对疲劳扩展寿命的影响较大；将概率断裂力学应用于叶轮的疲劳寿命预测中，为相关叶轮的设计、检修提供了参考。
