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Questions tagged [vibration]

Questions regarding quick oscillations known as vibrations.

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1answer
169 views

Could a fairing vacuum protect the payload from acoustic loads?

This is a weirder question, but here it goes: During launch, a payload (let's say a satellite) undergoes intense shaking and acoustic loads. This is known from the launcher parameters and the ...
5
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2answers
116 views

Ariane 4 Random Vibration

In the plot above, taken from space craft system engineering book, chapter 2. This is the plot showing the random vibration power spectrum of Ariane 4. The unit is $g^2/Hz$, I understand how the ...
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2answers
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Why doesn't this SpaceX rocket test fire use water sprays?

I know that rocket launches always have water towers spray water all around when the rocket is launching to suppress the extreme sounds and shockwaves generated by the launch and ensure the rocket ...
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4answers
2k views

Do rocket engines have shock absorbers?

With a million pounds of thrust and many g of acceleration and a significant fraction of a g of vibration, connecting the engine to the rocket can't be trivial. At launch the mass is very high and ...
8
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1answer
345 views

Do astronauts hear audible creaking from spacecraft structures?

I once heard an audio tape compiled from data downloads from a high rate accelerometer on the Olympus satellite, from which one could hear thruster firings, valve switching and reaction wheel ...
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2answers
310 views

Do processors need to be hardened against vibration?

Rockets are very loud, and seems to have a lot of vibration caused by turbulence. They're also run by microchips, which I tend to think of as fragile. Do the microchips need to be specially designed ...
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3answers
6k views

What G-forces do different launchers cause?

What G-force is the payload exposed to on different launchers? Are there more gentle and more rough rockets? And do other factors, like vibrations, differ significantly too? Some scientific payloads ...
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1answer
91 views

Estimating vibration performance of a material

I am choosing a material for a spacecraft component, and I would like to estimate how it will perform under vibration, perhaps during launch. How does one estimate this performance? Are there ...
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2answers
360 views

Is vibration useful in shaking off Mars dust?

I had just read this article about how they were trying to figure out how to make a vibrating superconductor move in 1 direction, for propulsion, but it didn't sound too promising. So I thought of ...
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1answer
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How were vibrations supposed to be handled in an Ares I?

The basic concept of an Ares 1 consisted of a five-segment SRB and some liquid-fuelled upper stage. The SRB was derived from the four-segment Space Shuttle SRBs. A similar concept was later promoted ...