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The ISS suffered violent oscillations Jan 14 due to faulty rocketfiring
my question so the commander feels vibration like never before.
why didnt someone detecting the abnormal problem stop the burn? heck it might have got worse and depressurized the station. how many were asleep at the abort switch? actually onboard sensors should watch automatically for out of bounds situations and automatically stop whatever they are doing........... to give people time to look at things........ major major screw up |
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The ISS suffered violent oscillations Jan 14 due to faulty rocket firing
Well its as well it was spotted and you need some luck in life when systems
do not do what they should. I believe in Murphy and his law! Brian -- Brian Gaff - Note:- In order to reduce spam, any email without 'Brian Gaff' in the display name may be lost. Blind user, so no pictures please! "bob haller safety advocate" wrote in message ... my question so the commander feels vibration like never before. why didnt someone detecting the abnormal problem stop the burn? heck it might have got worse and depressurized the station. how many were asleep at the abort switch? actually onboard sensors should watch automatically for out of bounds situations and automatically stop whatever they are doing........... to give people time to look at things........ major major screw up |
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The ISS suffered violent oscillations Jan 14 due to faulty rocketfiring
bob haller safety advocate wrote:
why didnt someone detecting the abnormal problem stop the burn? It is possible that within Zvezda, the burn didn't seem abnormal, and that it was only at the other end of the station that oscillations were noticeable (lever effect). One also wonders how the CMGs responded to this, whether they dampened it , were neutral to it, or whether they might have made matters worse. Remember that this article sensationalised the issue. If not sensationalised, then the network wouldn't have seen any value in publishing a boring "the burn was slightly abnormal" article. |
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The ISS suffered violent oscillations Jan 14 due to faulty rocketfiring
On Feb 4, 12:06�pm, "Brian Gaff" wrote:
Well its as well it was spotted and you need some luck in life when systems do not do what they should. I believe in Murphy and his law! Brian -- Brian Gaff - Note:- In order to reduce spam, any email without 'Brian Gaff' in the display name may be lost. Blind user, so no pictures please! "bob haller safety advocate" wrote in ... my question so the commander feels vibration like never before. why didnt someone detecting the abnormal problem stop the burn? heck it might have got worse and depressurized the station. how many were asleep at the abort switch? actually onboard sensors should watch automatically for out of bounds situations and automatically stop whatever they are doing........... to give people time to look at things........ major major screw up- Hide quoted text - - Show quoted text - shouldnt somerone or some system have stopped the burn? hey were shaking bad here,........... dead silence as the atmosphere evacuated the station. would hittinmg the big red safety button be better? heck they are low tech had them in high school shop for bad events |
#6
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The ISS suffered violent oscillations Jan 14 due to faulty rocket firing
Yes, I often wonder about the media's take on things. How long was the
problem in fact? If they had been really worried I'd imagine they would have shoved everyone into the Russian segment just in case. Its probably a bit of an embarrassment to anyone who's experiment needs steady state micro gravity though. Brian -- Brian Gaff....Note, this account does not accept Bcc: email. graphics are great, but the blind can't hear them Email: __________________________________________________ __________________________________________________ __________ "John Doe" wrote in message ... bob haller safety advocate wrote: why didnt someone detecting the abnormal problem stop the burn? It is possible that within Zvezda, the burn didn't seem abnormal, and that it was only at the other end of the station that oscillations were noticeable (lever effect). One also wonders how the CMGs responded to this, whether they dampened it , were neutral to it, or whether they might have made matters worse. Remember that this article sensationalised the issue. If not sensationalised, then the network wouldn't have seen any value in publishing a boring "the burn was slightly abnormal" article. |
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The ISS suffered violent oscillations Jan 14 due to faulty rocketfiring
On Feb 4, 9:52*am, bob haller safety advocate wrote:
my question so the commander feels vibration like never before. why didnt someone detecting the abnormal problem stop the burn? heck it might have got worse and depressurized the station. how many were asleep at the abort switch? actually onboard sensors should watch automatically for out of bounds situations and automatically stop whatever they are doing........... to give people time to look at things........ major major screw up As usual, you get it wrong. Always looking for the bad The crew was never in danger and it wasn't a major screw up. The vibrations were caused by the thrusters shutting down |
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The ISS suffered violent oscillations Jan 14 due to faulty rocket firing
"Brian Gaff" wrote:
Yes, I often wonder about the media's take on things. How long was the problem in fact? If they had been really worried I'd imagine they would have shoved everyone into the Russian segment just in case. Not being worried during an event does not preclude becoming worried after the event. Its probably a bit of an embarrassment to anyone who's experiment needs steady state micro gravity though. Yeah, major out of family vibrations are only an embarrassment. Loads in excess of those designed for can't possibly cause problems. D. -- Touch-twice life. Eat. Drink. Laugh. http://derekl1963.livejournal.com/ -Resolved: To be more temperate in my postings. Oct 5th, 2004 JDL |
#9
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The ISS suffered violent oscillations Jan 14 due to faulty rocketfiring
Derek Lyons wrote:
Yeah, major out of family vibrations are only an embarrassment. Loads in excess of those designed for can't possibly cause problems. One should be asking the question on whether Zvezda's engines can produce loads on the station that the station can't handle. If you start engine and run for 1 minute and then stop the engine, at the start and end periods, portion of the ISS will sway under the changed acceleration. And I would assume that all components of the station are built to widthstand that. They also widtstand the impact of docking vehicles. If you reduce the burn time to a short period that ends up matchin harmonic frequency, then yeah, oscillations on the truss and solar arrays might get out of hand. But we don't know that this is what happened. The article just speculated on this and how this could cause the ISS to collapse like the Tacoma Narrows bridge. |
#10
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The ISS suffered violent oscillations Jan 14 due to faulty rocket firing
John Doe wrote:
Derek Lyons wrote: Yeah, major out of family vibrations are only an embarrassment. Loads in excess of those designed for can't possibly cause problems. One should be asking the question on whether Zvezda's engines can produce loads on the station that the station can't handle. If you start engine and run for 1 minute and then stop the engine, at the start and end periods, portion of the ISS will sway under the changed acceleration. And I would assume that all components of the station are built to widthstand that. They also widtstand the impact of docking vehicles. If you reduce the burn time to a short period that ends up matchin harmonic frequency, then yeah, oscillations on the truss and solar arrays might get out of hand. But we don't know that this is what happened. Did you even read the article? While sober? D. -- Touch-twice life. Eat. Drink. Laugh. http://derekl1963.livejournal.com/ -Resolved: To be more temperate in my postings. Oct 5th, 2004 JDL |
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