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Oct 19 11 8:15 PM
Scott Brim wrote:It is my understanding from a decade ago that the updated Iowa Class design drawings from the 1980s reactivation, most of them on mylar drawing film, were stored aboard USS New Jersey in the late 1990s and were then transferred to the Naval Historical Center after the ship's transit to the east coast.
Oct 20 11 5:21 AM
MattReloaded wrote:1) The Booklet of General Plans are available on the internet, and clean copies can easily be obtained from such organizations as The Floating Dry Dock. What's really needed in this case is some sort of manual describing the procedure for removing the access plates.
MattReloaded wrote:2) I've already tried to contact the USS New Jersey museum association many times in the past, to obtain some infos on much more mundane subjects. I never got anything in return.
MattReloaded wrote:3) I'm still hoping to get more infos from Dick L. whenever he's got enough time to look at the subject.
Oct 31 11 3:16 PM
Oct 31 11 3:23 PM
Nov 2 11 9:54 AM
Nov 2 11 11:54 PM
MattReloaded wrote:a) QE2 synchronous motor - 44 MW @ 144 RPM* length = 14.4 ft / 4.4 meters* outer diameter = 28.5 ft / 8.7 meters* weight = 630,000 lb / 285,000 kgsource : Alternative Powering For Merchant Ships (2001)b) Converteam AC induction motor - 19 MW @ 150 RPM* length = 14.3 ft / 4.35 meters* outer diameter = 13.1 ft / 4.0 meters* weight = 263,000 lb / 119,000 kgsource : Integration of Electromagnetic Technologies into Shipboard Applications (2006)c) Converteam Advanced induction motor - 36.5 MW @ 180 RPM* length = 36.7 ft / 11.2 meters* outer diameter = 13.1 ft / 4.0 meters* weight = 507,000 lb / 230,000 kgsource : Alternative Powering For Merchant Ships (2001)d) DRS PMM - 36.5 MW@ 127 RPM* length = 16.7 ft / 5.1 meters* outer diameter = 17.7 ft / 5.4 meters* weight = 280,000 lb / 127,000 kgsource : 36.5 MW Permanent Magnet Motor System (PMMS) brochure (DRS, 2010)
Nov 3 11 12:42 AM
aesthetect wrote:Matt, I'm working on hybrid electric drive trains and am very interested in any data I can find regarding Converteam's induction motors. Particularly rated power/rpm and volume. Chiefly, I cannot seem to find where in the document you found that the 35.6 MW Converteam AIM motor was designed for 180 rpm? Just curious as I have been looking for this info for some time and wondered if the AIM was designed for high speed operation or direct drive, the latter as your spec suggests out. But thank you immensely for pointing out the volume data, I had come across that document some time ago and forgotten that was there.Cheers,Ben
ALSTOM Power Conversion Incorporated (APCI) reports that the DD(X) Integrated Power System (IPS) Test Team has achieved full torque of over 1,000,000 foot pounds on the Advanced Induction Motor (AIM) at the NGSS, NSWC Land Based Test Site in Philadelphia. This AIM is rated at 18.25MW at 127 RPM.
Nov 3 11 12:59 AM
MattReloaded wrote:b) Converteam AC induction motor - 19 MW @ 150 RPM* length = 14.3 ft / 4.35 meters* outer diameter = 13.1 ft / 4.0 meters* weight = 263,000 lb / 119,000 kgsource : Integration of Electromagnetic Technologies into Shipboard Applications (2006)
Nov 3 11 2:55 AM
Nov 3 11 9:50 AM
aesthetect wrote:damnit, 180 rpm worked much better for me, haha.
Odd though, isnt 12X rpm significantly lower than most naval max shaft speeds? Perhaps its a function of FPP implementation as allowed by the electric drive...
While I'm at it, are you familiar with any ~3600rpm rated induction motors in the 20MW range?
Nov 3 11 4:57 PM
Dec 9 11 8:49 PM
aesthetect wrote:Do you have a source for the rated 120rpm of the converteam 35.6 MW IM? Edit: After a bit more searching, I'm sure its right as I believe the all-electric designs (ie DDG-1000) are using 23ft propellers designed for 120 rpm at max.
Dec 16 11 10:10 PM
Dec 17 11 5:12 AM
Dec 17 11 6:09 AM
Only an IDIOT would put a nuclear power plant in a battleship.
Dec 17 11 7:47 PM
Dec 17 11 8:50 PM
Fermi2 wrote:Would put one on a battleship. How many nuclear plants are you qualified on?
Dec 17 11 8:52 PM
Dec 17 11 9:09 PM
Dec 17 11 9:10 PM
USSWisconsin wrote:I did my graduate studies in Nuclear Engineering in Madison, I was qualified to run the research reactor there. I have studied battleships for 30 years and have written books about them. And what are your qualifications?Can you explain yourself, why whould "only an Idiot" would put a reactor on a battleship? Do you have technical reasons why a carrier, cruiser or sub would be suitable for nuclear power, but a battleship would not?
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