摘要
以燃气轮机叶盘系统为研究对象,建立叶盘系统有限元模型,对其进行模态分析,研究工作载荷下的振动特性,并计算叶盘系统的疲劳寿命,结合分析结果对叶盘寿命进行评估。结果表明:叶盘振动以叶片振动为主导,叶片振动过大会导致其损坏。振幅的大小与轮盘和叶片节点位置有关,叶盘的寿命与载荷成反比,与表面粗糙度成正比。
Based on the gas turbine blade disk system,the finite element model of the blade disk is established and the modal analysis is carried out.The vibration characteristics of the system under the working load are studied,and the fatigue life of the blade disk system is calculated.Combined with the analysis results to evaluate the leaf disc life.The results show that the vibration of the blade is dominated by the vibration of the blade,and the vibration of the blade is caused by the vibration of the blade.The magnitude of the amplitude is related to the position of the wheel and the blade node.The life of the disc is inversely proportional to the load and is proportional to the surface roughness.
作者
邬云诗
潘宏刚
杨文军
张野
梁鑫
WU Yun-shi;PAN Hong-gang;YANG Wen-jun;ZHANG Ye;LIANG Xin(School of Energy and Power,Shenyang Institute of Engineering,Shenyang 110136,China;School of Mechatronics Engineering,Shenyang Aerospace University,Shenyang 110135,China;Branch of Courts of Shenyang,China Guodian Science and Technology Research Institute,Shenyang 110102,China)
出处
《汽轮机技术》
北大核心
2020年第6期438-441,共4页
Turbine Technology
基金
中国博士后科学基金项目(2019M661125)
辽宁省博士启动基金(20180540077)
辽宁省教育厅科学研究经费项目(JL-2003)
沈阳市中青年科技创新团队支持计划项目(RC190342)。
关键词
叶盘系统
有限元
振动特性
疲劳寿命
bladed disk system
finite element
vibration characteristics
fatigue life
