英语翻译Small changes to wheel and rail profiles,for example,hav

英语翻译
Small changes to wheel and rail profiles,for example,
have already been shown to have significant
effects on the interaction between the vehicle and the
track and recent improvements have led to reduced
wear and fatigue damage.Computer tools now allow
detailed prediction of this behaviour and further
development is likely.It is possible that specific profiles
will be developed for different types of vehicles or
track but this would also rely on sophisticated tools to
manage the maintenance of these.Freight vehicles will
see continued improvements in bogie design,leading
to increased efficiency and reduction in noise levels
even at higher axle loads.
The more dramatic improvements that could be
achieved by using mechatronic solutions such as
active suspensions are also likely progressively to
appear in railway vehicles.Their introduction has so
far been fairly slow with only tilting in widespread
use,but as reliability and confidence improves the
significant benefits will surely mean that they will
increasingly be adopted by passenger and freight
vehicle designers.
Track is certainly also likely to see significant
development with several innovative systems already
in service or under trial.As with vehicles these
innovations will need to demonstrate significantly
improved life cycle costs if the increased initial cost
and the changes to conventional systems are to be
outweighed.
Overall,the railways look well placed to increase
their market share and this will drive further investment
in the technical developments described in this
article.The peaks of performance now seen in some
passenger and freight vehicles will gradually spread to
all parts of the system and will produce a more reliable
and controlled railway system fit for the needs of users
well into the 21st century.
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