Analysis of the dynamic and static characteristics of asymmetric tilting-pad journal bearings

• Grant number: 17/14045-7
• Support Opportunities: Scholarships in Brazil - Master
• Start date: December 01, 2017
• End date: May 31, 2019
• Field of knowledge: Engineering - Mechanical Engineering - Mechanical Engineering Design
• Principal Investigator: Rodrigo Nicoletti
• Grantee: Heitor Antônio Pereira da Silva
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

This project lies in the area of designing tilting-pad journal bearings with higher load capacity and enhanced dynamic characteristics. In this project, we study the static and the dynamic characteristics of tilting-pad journal bearings with asymetric geometry. That means, the geometry and position of the pads are different to each other due to machining and assembling tolerances. First, we investigate numerically the characteristics of tilting-pad bearings with random geometry, both for the cases of load-on-pad and load-between-pads. Second, we will identify the design solutions that improve the system and those that degrade the system. Finally, we analyse the sensitivity of the design solution that improves the system to parameter variability and we compare the results with those obtained for the symetric bearing. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PEREIRA DA SILVA, HEITOR ANTONIO; NICOLETTI, RODRIGO. Design of Tilting-Pad Journal Bearings Considering Bearing Clearance Uncertainty and Reliability Analysis. JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, v. 141, n. 1, JAN 2019. (17/14045-7)

PEREIRA DA SILVA, HEITOR ANTONIO; NICOLETTI, RODRIGO; CAVALCA, KL; WEBER, HI. Stochastic Analysis of Asymmetric Tilting-Pad Journal Bearings. PROCEEDINGS OF THE 10TH INTERNATIONAL CONFERENCE ON ROTOR DYNAMICS - IFTOMM, VOL. 1, v. 60, p. 12-pg., 2019-01-01. (17/14045-7)