Results 101 to 110 of about 6,776 (209)

Engineering analysis and test results of the pre-stage planetary gear trains for wrist rotation and pitch assembly and azimuth and elevation assembly of the extendable stiff arm manipulator kit assembly [PDF]

open access: yes
In order to improve the performance capability of the Extendable Stiff Arm Manipulator (ESAM) it was necessary to increase the overall gear ratio by a factor of approximately four.
Morris, R. N.
core   +1 more source

Analytical and experimental investigation of rubbing interaction in labyrinth seals for a liquid hydrogen fuel pump [PDF]

open access: yes
Cracking of the titanium knife edges on the labyrinth seals of the liquid hydrogen fuel pump in the Space Shuttle main engine is considered. Finite element analysis of the thermal response of the knife edge in sliding contact with the wear ring surface ...
Dolan, F. X.   +2 more
core   +1 more source

An Auger electron spectroscopy study of surface-preparation contaminants [PDF]

open access: yes
There are many cleaning techniques that are presently being employed for surface preparation of materials that are subsequently exposed to ultrahigh vacuum (UHV). Unfortunately, there are virtually no comparative measurements which establish the residual
Hopson, P.   +3 more
core   +1 more source

Evaluation of Surface Roughness Reduction in TPU 95A Samples Using Ferromagnetic Liquid Machining. [PDF]

open access: yesMaterials (Basel)
Kowalska N   +5 more
europepmc   +1 more source

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