Nozomi in perspective, Revisiting the causes of failure |
Nozomi in perspective, Revisiting the causes of failure |
Oct 23 2011, 09:12 AM
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
http://www.mext.go.jp/b_menu/shingi/uchuu/...ts/04061101.pdf
Above pdf file will be translated for aspiring students in aeronautics, control engineering etc. so that in future lay people like me will be able to enjoy planetary scenes and events without worrying about failures. The overall title is "Looking into the causes of failure and trying to find the right measures to take for the future with respect to the 18th scientific satellite (PLANET-B ) not inserted into Mars orbit as planned" and it is dated 21 May 2004. This file is very much detailed at 1.1 megabytes and the number of pages is about 40, I think. In addition, I will be translating 3 more files after this particular file. They will be; 1. ISAS file with views and comments on the failure 2. Another ISAS file, a newsletter written out in a series of 4 individual letters. 3. JAXA file, which is a press release and it is a very concise document with just sufficient details. Re concise link making I tried a few times, but I simply failed and all the links will be fully pasted out as required. Pandaneko |
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Dec 7 2011, 08:42 AM
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Member Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 |
above for ease of reference page 48 fig. II-1-7 Changes in pressure and acceleration at time of TMI (here, left vertical axis is pressure and the right handside vertical axis is average acceleration. The horizontal axis is OME firing time (sec)) (on the graph itself, the brown curve is acceleration and inside the square the brown dot is also acceleration) end of page 48 page 49 fig. II-1-8 Comparison of regulated pressure and propulsion (here, the bottom line inside the square is predicted propulsion) end of page 49 page 50 fig. II-1-9 Fuel system pressure trend (here, inside the square we have): P2: regulator regulated pressure P3: fuel tank pressure P4: oxidiser tank pressure Pc: 500N thruster burn pressure end of page 50 page 51 fig. II-1-10 Oxidiser system pressure trend (captions inside the square are exactly the same as on page 50 end of page 51 P |
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