Measurement of Oil Film Coefficients of Journal Bearings with Large Clearance Ratio

• Project/Area Number: 20760146
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Dynamics/Control
• Research Institution: Nagaoka University of Technology
• Principal Investigator: TAURA Hiroo Nagaoka University of Technology, 工学部, 助教 (20334691)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 機械力学・制御 / 機械要素

Research Abstract

To investigate the dynamic characteristics of oil film of the journal bearings with large clearance ratio, a testing machine for the dynamic coefficients of oil lubricated journal bearings was made in the study, and the test bearings with clearance ratio 1/1000 and 20/1000 was prepared. The static characteristics of two grooved bearing with the ordinal clearance ratio 1/1000 were measured with the machines to confirm the performance of the machine.