I can remember watching Southern Pacific crews replacing hard faced rails on the Coast Main LIne with conventional rails in the mid 1970s. It seems that the test sections had performed well but something happened when the big contract was let. Something got streamlined. Metallurgy rules the rails. Do the laboratory testing methods actually measure what you are interested in? Is the correlation high enough to be a good predictor? The benefits of hardened rails have been known for a long time. Our world is run by managers and accountants, not engineers. Think about that. Quarterly reports and stock prices rule the board room. Unfunded liabilities (maintenance) takes a back seat. Defer maintenance, be a Wall Street darling, look for a buyout partner. Don't wait until the deferred maintenance becomes apparent. Pump the price and bail out.
Thanks, I found the video very informative, and the dialogue was very accurate, as English is not your first language. Looking forward to seeing a video on issues/problems with wheel oscillations with regard to high speed rail.
OK hardness is good, but the radius seems to be more important. It would have been good to show the radius in more detail, what is good, what existing rails and wheels look like. Yes they should match, what does that look like? I couldn't tell the difference between the light blue and white rails.
Point is that the harder rail helps keep the correct rail profile for much longer, which means less rail maintenance and also less wear on the wheels. At least, if we listen to the people who are trying to sell harder rails.
Add to that the variations of loads, bogie designs curve radii, tilt angle of rails and different speeds of trains and of course wheel diameter as well as environmental factors like temperature and water on tracks.
I love the opening comments about the importance of a railway infrastructure. The whole subject means nothing in Africa! It's so sad these people can't see it
A Coal Mine with a isolated railroad.. 25 MPH limit.. 170 ton cars.. locomotives at both ends.. down hill loaded for the most part. tight radius curves chews the top of the tracks up thru the curves.. could lowering the outer rail level cause the wheel sets to shift to the outer rail to reduce wear on the track surface since there is not enough speed to create centrafugal force?. could the tight corner require a different grind on the wheel sets. when i saw the track surface.. and the wheels that is what i came up with. its probably totally possible on this non interconnected railroad..
Great presentation but I had to stop at the 4:30 mark because of the irritating so called music. You have a good channel and there is no reason to have that. Cheers, Peter
lol not even close. Conventional rail is still superior. Just the insane costs of burying a mammoth number of magnets isn't worth it for almost all applications. Maglev is so niche that its only use case to justify the exorbitant costs would be passenger service between a select few cities.
I love the opening comments about the importance of a railway infrastructure. The whole subject means nothing in Africa! It's so sad these people can't see it
![#PerformanceOnTrack: [RAIL INSIGHTS] New Episode: Sustainability](http://i.ytimg.com/vi/Rm_700MP2g4/mqdefault.jpg)
at 7:21 it is always a joy to hear a smart person talk about something they are an expert in.
This is a refreshing video. Actual real expert doing the talking. I also share your sentiment.
Love it when an apparently boring subject turns out to be very deep in terms of physics and engineering.
A very good explanation of EC. Thanks for that video!
I can remember watching Southern Pacific crews replacing hard faced rails on the Coast Main LIne with conventional rails in the mid 1970s. It seems that the test sections had performed well but something happened when the big contract was let. Something got streamlined. Metallurgy rules the rails. Do the laboratory testing methods actually measure what you are interested in? Is the correlation high enough to be a good predictor? The benefits of hardened rails have been known for a long time. Our world is run by managers and accountants, not engineers. Think about that. Quarterly reports and stock prices rule the board room. Unfunded liabilities (maintenance) takes a back seat. Defer maintenance, be a Wall Street darling, look for a buyout partner. Don't wait until the deferred maintenance becomes apparent. Pump the price and bail out.
Ich weiss nicht warum dieses Video mir empholen wurde, aber ich habe es richtig interresant gefunden. Vielen dank! 😎👍
Thanks, I found the video very informative, and the dialogue was very accurate, as English is not your first language.
Looking forward to seeing a video on issues/problems with wheel oscillations with regard to high speed rail.
OK hardness is good, but the radius seems to be more important. It would have been good to show the radius in more detail, what is good, what existing rails and wheels look like. Yes they should match, what does that look like? I couldn't tell the difference between the light blue and white rails.
Point is that the harder rail helps keep the correct rail profile for much longer, which means less rail maintenance and also less wear on the wheels.
At least, if we listen to the people who are trying to sell harder rails.
Very well explained!
Everything but boring and one of the few things were you would least expect high tec and testing. You left me stunned.
Thank you. Interesting results.
Add to that the variations of loads, bogie designs curve radii, tilt angle of rails and different speeds of trains and of course wheel diameter as well as environmental factors like temperature and water on tracks.
They make some interesting statements ! I am surprised they did not mentioned proposed materials of rail wheel ! In particular the ADI 1007.
Very interesting stuff.
I love the opening comments about the importance of a railway infrastructure. The whole subject means nothing in Africa! It's so sad these people can't see it
Cool video even involving a scientific review 👏
A Coal Mine with a isolated railroad.. 25 MPH limit.. 170 ton cars.. locomotives at both ends.. down hill loaded for the most part. tight radius curves chews the top of the tracks up thru the curves.. could lowering the outer rail level cause the wheel sets to shift to the outer rail to reduce wear on the track surface since there is not enough speed to create centrafugal force?. could the tight corner require a different grind on the wheel sets. when i saw the track surface.. and the wheels that is what i came up with. its probably totally possible on this non interconnected railroad..
An interesting video but ruined by the intrusive background musak!
Great presentation but I had to stop at the 4:30 mark because of the irritating so called music. You have a good channel and there is no reason to have that. Cheers, Peter
I didn’t ask for this, not complaining though.
Is that background music necessary? Does it contribute to the explanation? I find it distracting and even annoying. Thanks!
Difference between German engineering and the rest of the world!
Austrian
@@frankbacon245 Oh but you see, that does not conform to their preconceptions!
Japan's Shinkansen says hello
A good argument for pushing MAGLEV.
lol not even close. Conventional rail is still superior. Just the insane costs of burying a mammoth number of magnets isn't worth it for almost all applications. Maglev is so niche that its only use case to justify the exorbitant costs would be passenger service between a select few cities.
I love the opening comments about the importance of a railway infrastructure. The whole subject means nothing in Africa! It's so sad these people can't see it