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i think it started with an optimisation problem as we have been told at the beginning of this presentation
but once you have the solution of optimisation problem you need to implement that solution
in here we get to our job as are proportional limitation teen speakers
we have several constraints based on that optimisation problem we have to
respect them all the ways all work is completely useless and
something that are interesting is it that we could think okay we're in
power are the main saw constraint will be on your power but
we also need to integrate our system and apart physical part was mechanic
all constraints um so we need to work was mechanical engineers because
they'll tell us okay you can put it here on not you can transfer your power in that way or not mechanically speaking
that's first point that's real important moreover we needs a control of
our system otherwise it's just me silent rockets are basically as
ah then stole we are not allowed to trash at the end of the tube
so basically we need to control so we need to work with the control team with the or two piles because it's
not of a default apollo but if the power system does not respond unfortunately show less and it'll be all falls
so we have the first main challenge of integration of integrating
our design of our subsistence into the entire part
then another thing that's come is um in mind when we have to design such systems is
maximise the board inside we her evil they quite often the terms
energy density with electrical vehicles long range article vehicles energy
density is um measurement of how much energy you can fit
within a certain volume or shouldn't mess of storage
for the powered something similar
or is basically the rates of conversion of energy from one
form of energy basically or storage can be anything want
q. something else another form of energy and kayla transportation mode operation products
basically it's kinetic energy energy that's related to speed and if
you want something that goes fast you need to give
to that thing a lot of speed a lot of kinetic energy so you need
to do that as fast as possible so accelerates as fast as possible
so you need to have a huge conversion ratio between
your input energy annual output energy that's the power
so then
we know also from our uh british gentleman that's our discovered a few centuries
ago ah he's cool exactly ten maybe you've heard of him um
that's acceleration is inversely proportional to the mass so i
know the key point to accelerate is basically
to reduce the mass because as you may know for two card that will have a engines of the same power
probably the one with the lightest will accelerate faster than the other
one so that's not a key points and basically why linking
power and mass you end up with power density how much
power you can i gets from my system forgiven mess
so our job as propulsion and levitation teen but also for the energy team uh
that's uh i uh converts light for the amazing job is to reduce
the mass for and extract more power of the system and it's always like that that you can achieve our
will class records or system so basically look to white sport density to win the competition
finally we have another phones back you
because as you maybe know or not not all components can withstand vacuum
are for example usually i'll leaving our object such
as humans or animals uh cannot withstand like
it but also some components cannot with them so we have to think about that
another key point as the heating because all system have losses
even the best propulsion system that can imaging will always have losses losses are basically just heat
when you are driving your car or writing train or something like that they all losses it end up propulsion system
but you have air around your vehicle so we can just transferred up excess heat to the air
and that's all
but just think the minutes
when you when that high pulled chip or such system
you don't have endured air cooled down or system
and the the main problem we have in that case
is that we don't want the passengers to be cooked
or maybe if you're transporting a fresh fish you want so she's at the end if it's got it's all over
ah yes i'm french alike face sorry um
basically so we have to think about those problems it's always an iterative problem because once was solution we need to see
if we can integrate it but maybe the integration will decrease all poured in city
so we will need to find another way to do it but maybe we'll start to think okay
is my system vacuum proof on us and like that we do an iterative process and our thanks
to michael likes and twice advises we have in mind how to do that now because
work is quite a useful tool when it's the goal is to reach high speeds
the key point is always think
how can accelerate my port and maximise my poured into
a box i've some constraints of design all around
i would like also to um thank our sponsors for their amazing
support our first i would like to thank the good but
they can figure out there was an and the all the presidency are all the people that i've helpless all that
school what it's important thanks for being here tonight i think we can oppose you ha
it's a beautiful adventure and basically all that we feel that all the school with with uh with us in that project and
all this country where event is out with doesn't that project and that's why something beautiful
also like to frank ah that from that show what is it should only
be f. l. agrees giving us on mason's report it surely something um
good place entrap such ah sponsors behind us also like to frank on
national instruments console limo or that's and uh the pro shape
forty both technical and all the things supports and that's really amazing i will like
to uphold them because hospitals are really good home actually ah ha and i
so how change very much are for your attention

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Conference program

Opening Speech
Martin Vetterli, Professor
1 March 2018 · 6:08 p.m.
History of Swissmetro
Marcel Jufer, Professor
1 March 2018 · 6:17 p.m.
Mechanical Design Challenges
Nicolo' Riva
1 March 2018 · 6:45 p.m.
Energy Handling and Propulsion Challenges
Theophane Dimier
1 March 2018 · 6:54 p.m.
Questions from Public
1 March 2018 · 7:04 p.m.

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