NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Spin test of turbine rotorExperimental data are presented for the tangential and radial stresses in the disks of the 36,000 horsepower, 4000 rpm turbine for the M-1 engine oxidizer turbopump. The two-stage Curtis turbine is a special light-weight design utilizing thin conical disks with hollow sheet metal blades attached by electron-beam welding techniques. The turbine was fabricated from Inconel 718, a nickel-chromium alloy. The stresses were obtained by strain-gage measurements using a slip-ring assembly to transmit the electrical signals. Measurements were made at different rotative speeds and different thermal loads. In addition to presenting test data, the report describes test equipment, design of associated hardware, test procedures, instrumentation, and tests for the selection and calibration of strain gages.
Document ID
19720012802
Document Type
Contractor Report (CR)
Authors
Vavra, M. H. (Naval Postgraduate School Monterey, CA, United States)
Hammer, J. E. (Naval Postgraduate School Monterey, CA, United States)
Bell, L. E. (Naval Postgraduate School Monterey, CA, United States)
Date Acquired
September 2, 2013
Publication Date
February 1, 1972
Subject Category
MACHINE ELEMENTS AND PROCESSES
Report/Patent Number
NPS-57VA71061B
NASA-CR-1967
Funding Number(s)
CONTRACT_GRANT: NASA ORDER C-10836
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

NameType 19720012802.pdf STI