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  • Surface fatigue life of M50NiL and AISI 9310 spur gears and R C bars [microform] / Dennis P. Townsend and Eric N. Bamberger.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1991]
    • 1991

  • Surface fatigue life of carburized and hardened M50NiL and AISI 9310 spur gears and rolling-contact test bars [microform] / Dennis P. Townsend and Eric N. Bamberger.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command, Aviation R&T Activity ; [Springfield, Va. : For sale by the National Technical information Service, 1989]
    • 1989

  • Effect of two synthetic lubricants on life of AISI 9310 spur gears [microform] / Dennis P. Townsend and John Shimski.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1991]
    • 1991

  • Improvement in surface fatigue life of hardened gears by high-intensity shot peening [microform] / Dennis P. Townsend.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center : U.S. Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1992]
    • 1992

  • Evaluation of a vibration diagnostic system for the detection of spur gear pitting failures [microform] / Dennis P. Townsend and James J. Zakrajsek.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Adelphi, MD?] : U.S. Army Research Laboratory ; [Springfield, Va. : National Technical Information Service, distributor, 1993]
    • 1993

  • Surface fatigue life of high temperature gear materials [microform] / Dennis P. Townsend.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; Cleveland, Ohio] : U.S. Army Research Laboratory ; [Springfield, Va. : National Technical Information Service, distributor, 1994]
    • 1994

  • Lubricant and additive effects on spur gear fatigue life [microform] / Dennis P. Townsend, Erwin V. Zaretsky, and Herbert W. Scibbe.

    • Text
    • Cleveland, Ohio : Lewis Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1985]
    • 1985

  • Evaluation of advanced lubricants for aircraft applications using gear surface fatigue tests [microform] / Dennis P. Townsend and John Shimski.

    • Text
    • [Washington, D.C.] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command, Aviation R&T Activity ; [Springfield, Va. : For sale by the National Technical Information Service, distributor, 1991]
    • 1991

  • Surface fatigue and failure characteristics of hot forged powder metal AISI 4620, AISI 4640, and machined AISI 4340 steel spur gears [microform] / Dennis P. Townsend.

    • Text
    • [Washington, DC] : NASA ; [Springfield, Va. : For sale by the National Technical Information Service, 1986]
    • 1986

  • The surface fatigue life of contour induction hardened AISI 1552 gears [microform] / Dennis P. Townsend, Alan Turza, Mike Chaplin.

    • Text
    • [Washington, D.C.] : National Aeronautics and Space Administration ; [Adelphi, Md.] : U.S. Army Research Laboratory ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
    • 1995

  • Gear and transmission research at NASA Lewis Research Center [microform] / Dennis P. Townsend.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1997]
    • 1997

  • Evaluation of a vibration diagnostic system for the detection of spiral bevel gear pitting failures [microform] / Dennis P. Townsend and James J. Zakrajsek ; Robert F. Handschuh.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration : U.S. Army Research Laboratory ; Springfield, Va. : National Technical Information Service, distributor, 1996]
    • 1996

  • Gear and transmission research at NASA Lewis Research Center / Dennis P. Townsend.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center : U.S. Army Research Laboratory, April 1997.
    • 1997-4
    • 1 Resource

    Available Online

    https://purl.fdlp.gov/GPO/gpo72116

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