Results 91 to 100 of about 24,248 (166)

Passive isolation/damping system for the Hubble space telescope reaction wheels [PDF]

open access: yes
NASA's Hubble Space Telescope contain large, diffraction limited optics with extraordinary resolution and performance for surpassing existing observatories. The need to reduce structural borne vibration and resultant optical jitter from critical Pointing
Hasha, Martin D.
core   +1 more source

Investigation of variables in turbine erosion, influence of aerodynamic and geometric parameters [PDF]

open access: yes
Influence of aerodynamic and geometric parameters in turbine ...
Baughman, J. R.   +2 more
core   +1 more source

An approach to CMG steering using feedback linearization [PDF]

open access: yes
This paper presents an approach for controlling spacecraft equipped with control moment gyroscopes. A technique from feedback linearization theory is used to transform the original nonlinear problem to an equivalent linear form without approximating ...
Bergmann, Edward   +4 more
core   +1 more source

Analysis of rotary engine combustion processes based on unsteady, three-dimensional computations [PDF]

open access: yes
A new computer code was developed for predicting the turbulent, and chemically reacting flows with sprays occurring inside of a stratified charge rotary engine.
Raju, M. S., Willis, E. A.
core   +1 more source

Physical sciences: Thermodynamics, cryogenics, and vacuum technology: A compilation [PDF]

open access: yes
Technological developments which have potential application outside the aerospace community are reported. A variety of thermodynamic devices including heat pipes and cooling systems are described along with methods of handling cryogenic fluids.

core   +1 more source

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