Release Time:2019-03-10  Hits:

Indexed by: Conference Paper

Date of Publication: 2016-01-01

Included Journals: SCIE、CPCI-S

Volume: 32

Page Number: 1346-1349

Key Words: Rotor-can; Hot shrink-fit process; Finite element simulation

Abstract: In this paper, based on finite element (FE) software MSC. Marc, a two-dimensional nonlinear thermo-mechanical coupled model is established to investigate the hot shrink-fit process for the reactor coolant pump rotor-can. By using this model, the limited time and temperature evolution for hot shrink-fit process are calculated. The residual stress and contact force after shrink-fit are analyzed. The results indicates hot shrink-fit time, the contact force and residual stress decreased with the increase of interference. For the sake of expanding the shrink-fit limit time and improving success ratio, a kind of insulation layer is designed. With the increasing of thickness of insulation layer, the limit time for hot shrink-fit is linear increased. The results show the necessary time for the shrink-fit processing is increased to 85s when the thickness of insulation layer is 2.00mm.