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Vibrations brought down NK rocket - Printable Version

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Vibrations brought down NK rocket - DrTorch - 04-17-2012 07:32 AM

So says the speculation

http://www.eetimes.com/electronics-news/4370955/Severe-vibrations-likely-brought-down-N--Korean-rocket

Quote:He said the timing of the failure at about 60 seconds into the flight points to severe vibration at Max Q, the point where aerodynamic stresses on rocket traveling through the atmosphere are greatest. Unlike American rockets, the North Koreans lack the ability to throttle their liquid-fueled rockets up or down to diminished the stresses at Max Q.

Why?

RE: Vibrations brought down NK rocket - Machiavelli - 04-17-2012 07:43 AM

007 ??????

RE: Vibrations brought down NK rocket - DrTorch - 04-17-2012 08:33 AM

(04-17-2012 07:43 AM)Machiavelli Wrote:  007 ??????

No, why can't they throttle their motors?

RE: Vibrations brought down NK rocket - Bull_In_Exile - 04-17-2012 09:08 AM

Never has this song been so true





RE: Vibrations brought down NK rocket - BleedsHuskieRed - 04-17-2012 09:33 AM

I don't know what kind of fuel they are using in their rockets, however if it is a solid fuel there is no throttle, just light and go, like the solid boosters for the space shuttle. I would assume they are liquid fuel, which we have been throttling since the 1960's. Just goes to show that the NK's are idiots.

RE: Vibrations brought down NK rocket - RobertN - 04-17-2012 10:08 AM

Vibrating rockets?

RE: Vibrations brought down NK rocket - No Bull - 04-17-2012 10:12 AM

pretty interesting.... makes one wonder...

RE: Vibrations brought down NK rocket - Bull_In_Exile - 04-17-2012 10:35 AM

(04-17-2012 10:12 AM)No Bull Wrote:  pretty interesting.... makes one wonder...

Trying to do it on the cheap... The tech is not very new but to properly implement it requires key tools that are (1) not cheap and (2) not easy for an nation under an international microscope to obtain.

RE: Vibrations brought down NK rocket - Lord Stanley - 04-17-2012 10:53 AM

You heard it hear first - lasers. American lasers.

RE: Vibrations brought down NK rocket - No Bull - 04-17-2012 10:54 AM

(04-17-2012 10:53 AM)Lord Stanley Wrote:  You heard it hear first - lasers. American lasers.

03-lmfao just kidding I presume.

RE: Vibrations brought down NK rocket - Bull_In_Exile - 04-17-2012 10:58 AM

(04-17-2012 10:53 AM)Lord Stanley Wrote:  You heard it hear first - lasers. American lasers.
[Image: real_genius_laser_21.jpg]


RE: Vibrations brought down NK rocket - Lord Stanley - 04-17-2012 11:00 AM

(04-17-2012 10:54 AM)No Bull Wrote:  
(04-17-2012 10:53 AM)Lord Stanley Wrote:  You heard it hear first - lasers. American lasers.

03-lmfao just kidding I presume.

Au contrair, my fine feathered friend. Do you think they'd tell us they lasers were operational? The stealth planes were operating years before they were public....

Navy: We’re 4 Years Away From Laser Guns on Ships
http://www.wired.com/dangerroom/2012/03/navy-lasers-four-years/

[Image: death-star-7.jpg]

RE: Vibrations brought down NK rocket - I45owl - 04-17-2012 11:05 AM

(04-17-2012 07:32 AM)DrTorch Wrote:  So says the speculation

http://www.eetimes.com/electronics-news/4370955/Severe-vibrations-likely-brought-down-N--Korean-rocket

Quote:He said the timing of the failure at about 60 seconds into the flight points to severe vibration at Max Q, the point where aerodynamic stresses on rocket traveling through the atmosphere are greatest. Unlike American rockets, the North Koreans lack the ability to throttle their liquid-fueled rockets up or down to diminished the stresses at Max Q.

Why?

Good question. This paper gives some good information (and the links provide even more detail).

This link provides the following info: Taep'o-Dong-2 (TD-2) Design Evolution, Shahab-5, A,B, C/6

http://www.globalsecurity.org/wmd/world/dprk/td-2-specs.htm Wrote:Step-throttle thrust levels Step-1 (kgf) Step-2 (kgf)

Although step-throttling was used by North Korea for the TD-1 attempted satellite launch that both stretched the range and the altitude in addition to achieving the required velocity it is not believed to have been designed into the TD-2 hardware.


RE: Vibrations brought down NK rocket - I45owl - 04-17-2012 11:08 AM

(04-17-2012 10:53 AM)Lord Stanley Wrote:  You heard it hear first - lasers. American lasers.

pftt. Lasers can't even stop Lionel Messi...


RE: Vibrations brought down NK rocket - Lord Stanley - 04-17-2012 11:10 AM

Many Bothans died to bring us this picture of the Taep'o-Dong-2 fueling on the launchpad.

[Image: Model_Rocket_5072.jpg]

RE: Vibrations brought down NK rocket - Fo Shizzle - 04-17-2012 11:26 AM

(04-17-2012 10:08 AM)RobertN Wrote:  Vibrating rockets?

03-lmfao Pocket rockets?

RE: Vibrations brought down NK rocket - Cardiff - 04-17-2012 11:35 AM

don't know who caused the nork rocket to fail (have a hunch japan or israel was involved) but anyway, many thanks on a job well done

RE: Vibrations brought down NK rocket - DrTorch - 04-17-2012 12:12 PM

(04-17-2012 11:35 AM)Cardiff Wrote:  don't know who caused the nork rocket to fail (have a hunch japan or israel was involved) but anyway, many thanks on a job well done

Not necessarily. It's tough stuff, w/ many more things that can go wrong rather than right. It really is rocket science.

RE: Vibrations brought down NK rocket - Bull_In_Exile - 04-17-2012 12:30 PM

(04-17-2012 12:12 PM)DrTorch Wrote:  
(04-17-2012 11:35 AM)Cardiff Wrote:  don't know who caused the nork rocket to fail (have a hunch japan or israel was involved) but anyway, many thanks on a job well done

Not necessarily. It's tough stuff, w/ many more things that can go wrong rather than right. It really is rocket science.

They are working on a v2 to correct the problem.. Here is a smuggled still og the lab

[Image: FZFCLP2FEJ2G9EU.MEDIUM.jpg]

RE: Vibrations brought down NK rocket - smn1256 - 04-17-2012 02:07 PM

This is what happens when something isn't built by highly trained and skilled union workers.