Investigation on effects of Fluid-Structure-Interaction (FSI) on the lubrication performances of water lubricated bearing in primary circuit loop system of nuclear power plant. (15th June 2020)

• Record Type: Journal Article
• Authors: Xie, Zhongliang; Song, Pan; Hao, Liang; Shen, Nawei; Zhu, Weidong; Liu, Huanling; Shi, Jing; Wang, Yongkun; Tian, Wenchao
• Is Part Of: Annals of nuclear energy. Volume 141(2020)
• Publication Date: 2020-06-15
• Subjects: The primary circuit loop system -- Bearing -- Lubrication performances -- Pressure distribution; Nuclear energy -- Periodicals; Nuclear engineering -- Periodicals; 621.4805
• DOI: 10.1016/j.anucene.2020.107355
• Languages: English
• ISSNs: 0306-4549

Abstract

Highlights: Rotating speed does not influence the abrupt angle and the lubrication areas. Eccentricity ratios have significant influences on the pressure distribution. Lubrication models have significant influences on the pressure distribution of the hydraulic models. Abstract: The paper investigates the lubrication performances of water film under the consideration of different lubrication models in the primary circuit loop system of nuclear power plant. Variations between lubrication performances and rotating speeds, eccentricity ratios and lubrication models are obtained. Research results show that rotating speeds and lubrication models have significant influences on the lubrication performances. There exist optimum eccentricity ratios at which the bearing load carrying capacity and friction characteristics can strike the balance point. Research conclusions have guiding significances on the structure designs and optimization for such bearings in the primary circuit loop system.