|
Poslao: 08 Dec 2013 03:25
|
offline
- _commandos_
- Ugledni građanin
- Pridružio: 07 Jul 2009
- Poruke: 431
|
knjiga o RR motorima
[Link mogu videti samo ulogovani korisnici]
|
|
|
|
|
Registruj se da bi učestvovao u diskusiji. Registrovanim korisnicima se NE prikazuju reklame unutar poruka.
|
|
|
Poslao: 13 Jan 2014 17:15
|
offline
- acatomic
- Legendarni građanin
- Pridružio: 10 Jun 2008
- Poruke: 4607
|
Prosle godine u septembru poceo rad na sledecem motoru za F-35 koji ce koristiti sekundarni (adaptivni) bypass kao i druga unapređenja:
Citat:Pratt & Whitney and the U.S. Air Force Research Laboratory (AFRL) have begun testing of Pratt & Whitney's unique, adaptive supersonic fighter engine fan rig based on a full-scale F135 development fan to advance the next generation of military fighter engine technology. The purpose of the adaptive fan rig test is to mature technologies associated with adaptive bypass flow associated with a third stream of air, which will enable efficiency improvements in long-range persistence and high thrust combat maneuvers as well as in transonic and supersonic flight conditions
Modern military turbofan engines have two airstreams – one that passes through the core of the engine, and another that bypasses the core. Development of a third stream of airflow will allow for improved fuel efficiency and cooler heat sinks which improve thermal management of the air system and reduced heat signature.
On top of that adaptive fan we’re also making improvements, tremendous improvements in the core system as well. We’re putting in a higher pressure ratio, higher efficiency compressor, leveraging a lot of our advanced commercially-derived, 3D aerodynamic design capability...We’re looking at increasing the temperature capability and the efficiency of the turbine stages, and then we’re also looking at the exhaust system. Having that adaptive third stream allows us to work with that stuff as well...we’re making improvements to the efficiency of the core engine, but we’re also using the adaptive architecture to give us a lot more design options in terms of how we can manage the engine over the flight envelope.
[Link mogu videti samo ulogovani korisnici]
|
|
|
|
|
|
|
Poslao: 30 Jan 2014 17:34
|
offline
- mean_machine
- Legendarni građanin
- Pridružio: 23 Dec 2006
- Poruke: 12656
|
Krajem novembra 2013 GE poceo sa testiranjem ADVENT motora:
[Link mogu videti samo ulogovani korisnici]
|
|
|
|
|
|
|
Poslao: 30 Jan 2014 20:26
|
offline
- acatomic
- Legendarni građanin
- Pridružio: 10 Jun 2008
- Poruke: 4607
|
^^^
P&W i GE rade na istom konceptu i izgleda da je cela fora oko ADVENT-a dodavanje jos jednog bypass-a 
|
|
|
|
|
|
|
Poslao: 31 Jan 2014 20:57
|
offline
- mean_machine
- Legendarni građanin
- Pridružio: 23 Dec 2006
- Poruke: 12656
|
acatomic ::^^^
P&W i GE rade na istom konceptu i izgleda da je cela fora oko ADVENT-a dodavanje jos jednog bypass-a
Zato sam i postavio vest cisto da se vidi gde je ko. PW tek testira ventilator dok GE testira ceo motor.
|
|
|
|
|
|
|
Poslao: 22 Sep 2014 14:51
|
offline
- djox
- djox
- Pridružio: 23 Nov 2010
- Poruke: 112291
|
China Tests Two Fighter Engines in Tibet
 [Link mogu videti samo ulogovani korisnici]
|
|
|
|
|
|
|
Poslao: 06 Okt 2014 02:13
|
offline
- panini
- Novi MyCity građanin
- Pridružio: 13 Sep 2014
- Poruke: 2
|
Мала помоћ, ако може.
Како би се на српски превели следећи изрази:
dive - (понирање, обрушавање?)
overdive
powerdive
Хвала
|
|
|
|
|
|
|
Poslao: 20 Feb 2015 19:49
|
offline
- Pridružio: 16 Okt 2008
- Poruke: 2246
|
Intervju sa Vladislavom Masalovim, generalnim direktorom ruske ODK («Объединенная двигателестроительная корпорация»):
[Link mogu videti samo ulogovani korisnici]
|
|
|
|
|
|
|
Poslao: 28 Feb 2015 22:56
|
offline
- Pridružio: 16 Okt 2008
- Poruke: 2246
|
Monash University - Australija
Ljudi odstampali mlazni motor na 3D stampacu:
[Link mogu videti samo ulogovani korisnici]
|
|
|
|
|
|
|
Poslao: 25 Mar 2015 17:40
|
offline
- Pridružio: 16 Okt 2008
- Poruke: 2246
|
SIEMENS je objavio da je proizveo novi tip elektricnog motora, namenjenog upotrebi na vazduhoplovima:
[Link mogu videti samo ulogovani korisnici]
Ima od svega 50Kg, i ukupnu snagu od cak 260 kW. Ove karakteristike ucinice ga sposobnim za ugradnju i koriscenje i na vecim letelicama, klase preko 2t.
Do sada je Siemens vec proizveo elektro-motore koji se koriste na hibridnim letelicama sa 2 motora (klasicni+elektro), poput Diamond Aircraft DA36 E-Star 2.
|
|
|
|
|
|
