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Old December 20th, 2013, 04:42 AM   #1701
Tk.Alv-87
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And anyone has any update on the Higher Speed Experimental Train (CIT500)?

Quote:
From Wikipedia:
On December 22, 2011, the train, officially named Higher Speed Experimental Train,[10] rolled off of production lines. It is scheduled to enter testing in the near future.[11] The train set is composed of 6 motored cars with a power output of 22,800 kW, which results in an extremely high power to weight ratio.
I haven't heard anything about it ever since, wondering if anyone has got any luck in finding any information on it?
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Old December 20th, 2013, 09:05 AM   #1702
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The Wikipedia remark 'which results in an extremely high power to weight ratio' is interesting. Yes, you do need a lot of power to go faster. However all that power is useless when your running gear, aerodynamics and infrastructure are not up to scratch.

During the attempt with TGV 150 (19.6 MW power output) for instance they could not have gone much faster, because that would have created standing waves in the overhead wire. If they want to try to go quicker in China, they will probably have to build or modify a line with a different overhead wire especially for high speed testing and record attempts (SNCF used the normal wire tensioned to their safety limits).
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Old December 22nd, 2013, 04:35 PM   #1703
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two CRH380B and one CRH380BL at Tianjin west, Tianjin-Qinhuangdao platform



by @方舟-静儿
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Old December 22nd, 2013, 08:35 PM   #1704
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Quote:
Originally Posted by Tk.Alv-87 View Post
And anyone has any update on the Higher Speed Experimental Train (CIT500)?
There's a recent rambling four page story on CHR in general which mentions a test train capable of 600 km/hr. Does anyone here read the Outlook (瞭望) magazine whose cover is featured?

Edit: Here's a longer reprint of that magazine article. Some talk of bogie and wheel/rail design, wind tunnel tests, but I might have missed any comment on catenary wire stability. I also note that they didn't pick up frost heaving of bolted components until after some units went into service...

Meanwhile the CIT500 seems to be be trickling down some technology:

CIT500 - http://news.timedg.com/2011-12/26/content_7845901.htm


CRH380BL - http://news.nn.soufun.com/2013-12-22/11738665.htm
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Last edited by xinxingren; December 23rd, 2013 at 01:07 AM.
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Old December 29th, 2013, 07:46 AM   #1705
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http://ocw.swjtu.edu.cn/download/res...7037686790.pdf
http://www.apta.com/mc/hsr/previous/...nce-System.pdf

Two documents containing interesting graphs showing the tractive effort curves for the various CRH Stock.
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Old January 1st, 2014, 05:57 AM   #1706
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Quote:
Originally Posted by big-dog View Post
500kmph train will change the game again. Imagine traveling Beijing-Shanghai in 2.5 hours. Who will go to airport to travel the same distance while you can get to downtown directly in a shorter time?

But I wonder if CIT500 could run on existing HSR tracks. If not is it cost efficient to build a brand new one given that most major cities are getting HSR connections?
Well, Hongqiao railway station is not at all in the downtown as there is almost 20 km to the Bund.

Then, do not forget the faster the train is, the much much more power it requires, there is an exponential increase in power demand. It is so very hard to make such trains cost effective.
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Old January 1st, 2014, 10:41 AM   #1707
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Quote:
Originally Posted by _Night City Dream_ View Post
Well, Hongqiao railway station is not at all in the downtown as there is almost 20 km to the Bund.

Then, do not forget the faster the train is, the much much more power it requires, there is an exponential increase in power demand. It is so very hard to make such trains cost effective.
Most people live in Puxi so Hongqiao is more accessible to Shanghainese.

Talking about railway location I think it's high time to build a HSR station in Pudong. There are 5 railway stations in Puxi (all connected by metro) but non is in Pudong (off-topic).
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Old January 3rd, 2014, 12:29 AM   #1708
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Quote:
Originally Posted by big-dog View Post
Most people live in Puxi so Hongqiao is more accessible to Shanghainese.

Talking about railway location I think it's high time to build a HSR station in Pudong. There are 5 railway stations in Puxi (all connected by metro) but non is in Pudong (off-topic).
Absolutely agreed, Pudong certainly has the space and need for building one.

However, I have to say that it's not too difficult to get to Hongqiao from Pudong through metro either.
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Old January 3rd, 2014, 06:25 PM   #1709
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Just noticed that the front design for the CRH3G is quite similar to Siemens' concept for the ICx.
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Old January 3rd, 2014, 06:54 PM   #1710
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Quote:
Originally Posted by ddes View Post
Just noticed that the front design for the CRH3G is quite similar to Siemens' concept for the ICx.
Yes from afar the ICx is similar to CRH3G but note the latter's cabin is recessed, also if looking closely they don't share much details.
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Old January 4th, 2014, 12:51 AM   #1711
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Only slightly, in reality, it's more a horrible smash up of conflicting influences.
I can see parts that bear resemblance to those used on at least three separate trainsets, and none of them have been combined tastefully.
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Old January 4th, 2014, 08:29 AM   #1712
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Well, it's said to be aerodynamic and since they run wind tunnel tests this must be the case, we just need to avoid looking at them. I'm sure we'll see kids start to cry out of fear when one of those pulling into a station.
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Old January 4th, 2014, 08:47 AM   #1713
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image hosted on flickr

QQ图片20140104140707 by leo_sh, on Flickr

Sad that Shanghai Maglev is definitely dead.
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Old January 4th, 2014, 10:09 AM   #1714
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There goes the French's record.
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Old January 4th, 2014, 10:52 AM   #1715
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Quote:
Originally Posted by hmmwv View Post
Well, it's said to be aerodynamic and since they run wind tunnel tests this must be the case, we just need to avoid looking at them. I'm sure we'll see kids start to cry out of fear when one of those pulling into a station.
The recessed windscreen seems to be a big thing at the moment, I wonder if it actually makes that much of a difference, or if it's mainly a stylistic thing
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Old January 6th, 2014, 05:31 AM   #1716
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12/29/2013 CRH 380D on testing run near Guangzhou South

CRH 380D, based on ZEFIRO380, will be put into operation soon.













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Old January 6th, 2014, 06:06 AM   #1717
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Looking sleek.
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Old January 6th, 2014, 06:16 AM   #1718
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Probably the best-looking HSR trainset.
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Old January 6th, 2014, 07:15 AM   #1719
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It's long overdue for CRH380D.
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Old January 6th, 2014, 08:17 AM   #1720
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Sifang factory,CRH380A













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