Fluid Oscillations In The Containers Of A Space Vehicle And Their Influence Upon Stability
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Fluid Oscillations in the Containers of a Space Vehicle and Their Influence Upon Stability
Author | : Helmut F. Bauer,United States. National Aeronautics and Space Administration |
Publsiher | : Unknown |
Total Pages | : 168 |
Release | : 1964 |
Genre | : Fluid mechanics |
ISBN | : UIUC:30112106681932 |
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With the increasing size of space vehicles and their larger diameters which lower the natural frequencies of the propellants, the effects of propellant sloshing especially since at launch a very large amount of the total weight is in the form of liquid propellant. With increasing diameters the eigenfrequencies of the propellant become smaller and shift closer to the control frequency of the space vehicle. Furthermore, the oscillating propellant masses and the corresponding forces increase considerably. A relatively simple means of avoiding strong dynamic coupling can be achieved by subdivision of the container by radial or circular walls. This results in smaller sloshing masses and higher eigenfrequencies. Another possibility is the clustering of tanks with small diameters which has the disadvantage of a weight penalty. For stability investigations the influence of the oscillating propellant has to be known. For this reason forces and moments of the propellant with a free fluid surface in a container of circular ring sector cross section performing forced oscillations must be determined. This will be performed with the assumption of irrotational, frictionless, and incompressible liquid. Linear equivalent damping is introduced with the help of a mechanical model describing the fluid motion. It has to be determined by experiments.
NASA Technical Report
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 408 |
Release | : 1963 |
Genre | : Aerodynamics |
ISBN | : UCAL:B3534301 |
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Applied Mechanics Reviews
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 742 |
Release | : 1967 |
Genre | : Mechanics, Applied |
ISBN | : UCAL:C2682426 |
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Physics of Fluids in Microgravity
Author | : Rodolfo Monti |
Publsiher | : CRC Press |
Total Pages | : 625 |
Release | : 2002-01-10 |
Genre | : Science |
ISBN | : 9781482265057 |
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In a microgravity experiment, the conditions prevalent in fluid phases can be substantially different from those on the ground and can be exploited to improve different processes. Fluid physics research in microgravity is important for the advancement of all microgravity scients: life, material, and engineering. Space flight provides a uniqu
The Marshall Space Flight Center KC 135 Microgravity Test Program for FY 84 86
Author | : Robert E. Shurney |
Publsiher | : Unknown |
Total Pages | : 246 |
Release | : 1988 |
Genre | : Weightlessness simulators |
ISBN | : UIUC:30112106721654 |
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Effect of Wall Roughness on the Damping of Liquid Oscillations in Rectangular Tanks
Author | : Frank M. Bugg |
Publsiher | : Unknown |
Total Pages | : 44 |
Release | : 1970 |
Genre | : Damping (Mechanics) |
ISBN | : UIUC:30112106878504 |
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Wall roughness effect on damping of liquid oscillations in rectangular tanks.
NASA Technical Note
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 628 |
Release | : 1970 |
Genre | : Electronic Book |
ISBN | : MINN:31951000846285X |
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NASA Technical Memorandum
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 336 |
Release | : 1988 |
Genre | : Aeronautics |
ISBN | : MINN:31951P00054425X |
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