Ceramic composites for rocket engine turbines [PDF]
The use of ceramic materials in the hot section of the fuel turbopump of advanced reusable rocket engines promises increased performance and payload capability, improved component life and economics, and greater design flexibility.
Eckel, Andrew J., Herbell, Thomas P.
core +1 more source
Determination of the SSME high pressure oxidizer turbopump bearing temperature [PDF]
The SSME high pressure liquid oxygen turbopump (HPOTP) bearings sometimes wear and experience heating and oxidation of the ball and raceway surfaces. So far it has been impossible to measure the temperature of the bearings directly during operation of ...
Lumsden, J. B. +2 more
core +1 more source
Liquid Rocket Engine Turbopump Rotating-shaft Seals [PDF]
A monograph is organized and presents, for effective use in design, the significant experience and knowledge accumulated in development and operational programs to date.
Burcham, R. E., Keller, R. B., Jr.
core +1 more source
The determination of equivalent bearing loading for the BSMT that simulate SSME high pressure oxidizer turbopump conditions using the SHABERTH/SINDA computer programs [PDF]
The MSFC bearing seal material tester (BSMT) can be used to evaluate the SSME high pressure oxygen turbopump (HPOTP) bearing performance. The four HPOTP bearings have both an imposed radial and axial load.
Mcdonald, Gary H.
core +1 more source
Evaluation of a hybrid hydrostatic bearing for cryogenic turbopump application [PDF]
A hybrid hydrostatic bearing was designed to operate in liquid hydrogen at speeds to 80,000 rpm and radial loads to 440 n (100 lbf). The bearing assembly consisted of a pair of 20-mm angular-contact ball bearings encased in a journal, which was in turn ...
Hannum, N. P. +2 more
core +1 more source
Evaluation of Wire Arc Additive Manufacturing for Cavitation-Erosion-Damaged Blade Repairs
Engineering ProceedingsIn this study, to further clarify the advantages of industrial applications of wire arc additive manufacturing (WAAM), the focus is on the repair of blades damaged by cavitation erosion using WAAM.
Shinichiro Ejiri
doaj +1 more source
Simulation of Flow in Turbopump Vaneless and Vaned Diffusers with Fluid Injection
International Journal of Rotating Machinery, 2000 In future space missions by NASA there will be a need for “Space Transfer Vehicles” to perform varying orbital transfers and descents. This requires engines capable of producing different levels of thrust.
Ali Ogut, Diego Garcia Pastor
doaj +1 more source
Fiber-reinforced ceramic composites for Earth-to-orbit rocket engine turbines [PDF]
Fiber reinforced ceramic matrix composites (FRCMC) are emerging materials systems that offer potential for use in liquid rocket engines. Advantages of these materials in rocket engine turbomachinery include performance gain due to higher turbine inlet ...
Brockmeyer, Jerry W. +1 more
core +1 more source
Inert-Atmosphere Microfabrication Technology for 2D Materials and Heterostructures. [PDF]
Micromachines (Basel), 2023 Duleba A +6 more
europepmc +1 more source
Noncontacting device to indicate deflection of turbopump internal rotating parts [PDF]
Phase 2 (development) which was concluded for the ultrasonic Doppler device and the light-pipe-reflectance device is reported. An ultrasonic Doppler breadboard system was assembled which accurately measured runout in the J-2 LOX pump impeller during ...
Ensminger, D. +4 more
core +1 more source