Boro Prodanic
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« Reply #495 on: April 01, 2011, 08:10:06 pm » |
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Boro Prodanic
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« Reply #496 on: April 02, 2011, 11:07:59 pm » |
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Boro Prodanic
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« Reply #497 on: April 02, 2011, 11:19:21 pm » |
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Boro Prodanic
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« Reply #498 on: April 04, 2011, 09:21:11 pm » |
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Boro Prodanic
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« Reply #499 on: April 04, 2011, 09:23:21 pm » |
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Boro Prodanic
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« Reply #500 on: April 07, 2011, 05:38:41 pm » |
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Boro Prodanic
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« Reply #501 on: April 07, 2011, 05:40:36 pm » |
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Vladimir Ivanović
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Da sam nomalan, poludio bih.
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« Reply #502 on: April 07, 2011, 06:41:45 pm » |
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Kad si već stavio ovu sliku smrznutog aviona da malo objasnim detalje oko ispitivanja tehnike na klimomehaničke uticaje. Radio sam dosta i na tome. Ovakva slika koju si postavio bila je česta u VOC-u u Žarkovu. Bio sam tamo nekoliko puta.
Svi su se uređaji ispitivali po JUS. N.A.700 do JUS. N.A.730. Ti su standardi imali verziju u JNA koji su se zvali SNO 760 ( koliko me pamćenje služi) Standatd narodne odbrane, koji je kasanije preimenovan u JAS, jugoslovenski armijski standard. Bila je i verzija standarda ta ispitivanja vazduhoplovne opreme, ali se ne sjećam oznake standarda.
Da samo navedem neke od ispitivanja koja su se sprovodila na SVOJ avioopremi koja se ugrađivala u domaće avione.
Mora da radi na -55 stepeni celzijusa, a da izdrži -70 celzijusa. Mora da radi na 105 stepeni celzijusa sa 100% vlagom. Mora da radi na gravitaciji 9g, a da izdrži gravitaciju 13g Mora da radi na naponima od 22 do 36 volti. Svi električni uređaji u avionu moraju da izdrže naponski udar od 56 volti u trajanju od sekunde. Mora da izdrži vibracije u opsegu od 55 Hz do 20000 Hz sa amplitudom (koliko se sjećam, u ovo nisam siguran) od 5 mm. Na ovim vibracijama otpada sve što bi moglo da otpadne. Mora da izdrži prevrtanja i pad sa jednog metra na čohanu podlogu, i pri tom izdrži udar od 25g. I najgora. Mora da radi na potpritisku 0,1 atmosfera u vlazi 100% i temperaturi 100 stepeni. Ovo smo zvali kuvanje. Na ovom vakumu pucaju varovi, čelik i aluminij. Vazdušni mjehurići pronalaze najsitnije rupice u strukturi materijala i probijaju se kroz uređaj. Takvi mjehurići bukvalno naprave eksploziju uređaja koji je na ovakvom ispitivanju.
I da ne zaboravim. Svi naponski izlazi, signali i naponski morali su da izdrže bez oštećenja kratki spoj. Po otkanjanju kratkog spoja uređaj mora da ispravno radi.
Nekad bilo. Nema više.
Opremu koja je tako ispitivana uništena je nedavno u Libiji.
Pozdrav
Vlado
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« Last Edit: April 07, 2011, 06:50:54 pm by vladimir_16 »
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vathra
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« Reply #503 on: April 07, 2011, 06:52:54 pm » |
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Владо, да ли је постојао овакав фрижидер код нас за тестирање тенка, и да ли је постојао отвор за пуцање из њега? Јако давно сам слушао причу о таквом тестирању, укљ. и тестирање потпорних точкова на ниским температурама.
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Boro Prodanic
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« Reply #504 on: April 07, 2011, 06:59:48 pm » |
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Mnogo hvala na objašnjenjima Vlado! ![](https://www.paluba.info/smf/Smileys/classic/super.gif)
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Bozo13
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« Reply #505 on: April 07, 2011, 08:41:42 pm » |
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Na jednoj taskvoj komori, i ja sam radio neke testove. Od -50 do +70 ooprema mora da radi, a izdrži od -90 do +100. Ali to se ne može ni od blizu da meri sa testiranjima po JAS.
Svaka čast opremi, koja izdrži takvu torturu. Sada je jasno, zašto su komponente po MIL standardima toliko skuplje.
LPB
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madmitch
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« Reply #506 on: April 08, 2011, 01:42:15 pm » |
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« Last Edit: April 08, 2011, 01:44:59 pm by trpe grozni »
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Boro Prodanic
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« Reply #507 on: April 08, 2011, 05:20:02 pm » |
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Boro Prodanic
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« Reply #508 on: April 08, 2011, 05:21:02 pm » |
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Pera
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« Reply #509 on: April 08, 2011, 08:13:18 pm » |
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