NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
NASTRAN Structural Model for the Large 64-meter Antenna Pedestal. Part 3: Applications to Hydrostatic Bearing Oil FilmInvestigations are conducted on the 64-meter antenna hydrostatic bearing oil film thickness under a variety of loads and elastic moduli. These parametric studies use a NASTRAN pedestal structural model to determine the deflections under the hydrostatic bearing pad. The deflections form the input for a computer program to determine the hydrostatic bearing oil film thickness. For the future 64-meter to 70-meter antenna extension and for the 2.2-meter (86-in.) haunch concrete replacement cases, safe oil film thickness (greater than 0.13 mm (0.005 in.) at the corners of the pad) are predicted. The effects of varying moduli of elasticity for different sections of the pedestal and the film height under distressed runner conditions are also studied.
Document ID
19840024567
Document Type
Reprint (Version printed in journal)
Authors
Chian, C. T. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Schonfeld, D. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 12, 2013
Publication Date
August 15, 1984
Publication Information
Publication: The Telecommun. and Data Acquisition Rept.
Subject Category
STRUCTURAL MECHANICS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

IDRelationTitle19840024551Analytic PrimaryThe Telecommunications and Data Acquisition Report
Document Inquiry