Stability-Maneuverability Tradeoffs Provided Diverse Functional Opportunities to Shelled Cephalopods. [PDF]
Integr Org Biol, 2022 Peterman DJ, Ritterbush KA.
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Experimentally determined stiffness and damping of an inherently compensated air squeeze-film damper [PDF]
Values of damping and stiffness were determined experimentally for an externally pressurized, inherently compensated, compressible squeeze-film damper up to excitation frequencies of 36,000 cycles per minute.
Cunningham, R. E.
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Theoretical and experimental studies of visco-type shaft seals Semiannual progress report, Oct. 15, 1964 - Apr. 15, 1965 [PDF]
Theory and performance of visco-type shaft seal under laminar and turbulent ...
Stair, W. K.
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Advanced Launch System propulsion focused technology liquid methane turbopump technical implementation plan [PDF]
This program will focus on the integration of all functional disciplines of the design, manufacturing, materials, fabrication and producibility to define and demonstrate a highly reliable, easily maintained, low cost liquid methane turbopump as a ...
Csomor, A., Nielson, C. E.
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NERVA upgrade: Non-nuclear components [PDF]
The design of engine based upon the original accomplishmentns of the ROVER/NERVA program (but with the use of advanced technologies) is discussed. Some hypothetical requirements for a typical manned Mars mission are outlined.
Gunn, Stanley
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The effect of recess number and conical shape on hydrostatic bearing power losses. [PDF]
Sci RepEl-Sayed MM, Ibrahim M, Taleb ASAA.
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Editorial for the Special Issue on Advances in Ultra-Precision Machining Technology and Applications. [PDF]
Micromachines (Basel), 2022 Cheung BCF, Guo J.
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Evaluation of chromium oxide and molybdenum disulfide coatings in self-acting stops of an air-lubricated Rayleigh step thrust bearing [PDF]
Two coatings for a Rayleigh step thrust bearing were tested when coasting down and stopping under self-acting operation in air. The thrust bearing had an outside diameter of 8.9 cm (3.5 in.), an inside diameter of 5.4 cm (2.1 in.), and nine sectors.
Nemeth, Z. N.
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Deep-Sea Biomimetic Manta Ray Robots: A Comprehensive Review Based on Operational Depth Spectrum, Structures, Energy Optimization, and Control Systems. [PDF]
Biomimetics (Basel)Ye L +6 more
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Lewis Research Center is developing broad-based new technologies for space chemical engines to satisfy long-term needs of ETO launch vehicles and other vehicles operating in and beyond Earth orbit.
Kazaroff, John M.
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