文献类型：期刊文献

英文题名：Micro-scale numerical simulation on metal contact seal

作者：Man, Jingyu[1,2];Zhou, Qiong[1];Tao, Zongjie[1];Zhang, Yi[3];An, Qi[1]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Shanghai Univ Elect Power, Sch Math & Phys, Shanghai, Peoples R China;[3]Wuxi Seamless Oil Pipe Co Ltd, Wuxi, Peoples R China

年份：2014

卷号：228

期号：12

起止页码：2168

外文期刊名：PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE

收录：;EI(收录号：20143017972524);WOS:【SCI-EXPANDED(收录号:WOS:000340133300011)】；

语种：英文

外文关键词：Contact seal; rough surface; micro-contact; numerical simulation; metal seal

摘要：Metal contact seals are widely used in mechanical equipment, and such sealing performance is directly influenced by the interfacial micro-contact state. In this paper, the surfaces with random roughness are simulated by an exponential autocorrelation function and root-mean-square roughness. The model of metal surface micro-contact is established. The influences of the external loads on the interfacial separation, contact area and maximum interfacial stress are investigated by means of Hertz contact theory. Calculations and investigations are carried out for a concrete sealing interface. The variations of the interfacial separation, contact area and interfacial stress with the external applied loads are investigated with the two surfaces of the same and different root-mean-square roughness, respectively. Meanwhile, the concrete variation curves are obtained. Furthermore, the obtained variation curves are analysed in detail.