教授 博士生导师 硕士生导师
任职 : 《推进技术》、《航空动力学报》青年编委,中国振动工程学会转子动力学专业委员会常务理事
性别: 男
毕业院校: 哈尔滨工业大学
学位: 博士
所在单位: 能源与动力学院
学科: 动力机械及工程. 流体机械及工程
办公地点: 大连理工大学西部校区能动学院621房间
联系方式: 电子邮件:zhaoguang@dlut.edu.cn
电子邮箱: zhaoguang@dlut.edu.cn
简洁有效联系方式——电子邮件 : QQ:5845867及QQ信箱
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论文类型: 期刊论文
发表时间: 2018-11-01
发表刊物: TRIBOLOGY INTERNATIONAL
收录刊物: SCIE、Scopus
卷号: 127
页面范围: 157-164
ISSN号: 0301-679X
关键字: Bolt joint; Contact stiffness; Natural frequency; Layer element
摘要: Bolted joints are widely used when joining parts together and their dynamics is significantly influenced by bolt preload and interface roughness. In this paper, experimental test of bolted joint is implemented to explore the influence of bolt preload on the first 6 order natural frequencies, whose results reveal a phenomenon of natural frequencies increase along with bolt preload. Thin layer elements (TLE) is implemented into the finite element (FE) model to represent interface contact stiffness, and FE analysis reproduces the experimental phenomenon by changing stiffness of thin layer. By comparing the experimental test and the FE analysis, the regularity of the contact stiffness in bolted interface changes with bolt preload is obtained.