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who are
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i think it started with an optimisation problem as we have been told at the beginning of this presentation
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but once you have the solution of optimisation problem you need to implement that solution
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in here we get to our job as are proportional limitation teen speakers
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we have several constraints based on that optimisation problem we have to
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respect them all the ways all work is completely useless and
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something that are interesting is it that we could think okay we're in
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power are the main saw constraint will be on your power but
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we also need to integrate our system and apart physical part was mechanic
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all constraints um so we need to work was mechanical engineers because
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they'll tell us okay you can put it here on not you can transfer your power in that way or not mechanically speaking
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that's first point that's real important moreover we needs a control of
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our system otherwise it's just me silent rockets are basically as
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ah then stole we are not allowed to trash at the end of the tube
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so basically we need to control so we need to work with the control team with the or two piles because it's
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not of a default apollo but if the power system does not respond unfortunately show less and it'll be all falls
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so we have the first main challenge of integration of integrating
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our design of our subsistence into the entire part
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then another thing that's come is um in mind when we have to design such systems is
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maximise the board inside we her evil they quite often the terms
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energy density with electrical vehicles long range article vehicles energy
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density is um measurement of how much energy you can fit
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within a certain volume or shouldn't mess of storage
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for the powered something similar
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or is basically the rates of conversion of energy from one
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form of energy basically or storage can be anything want
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q. something else another form of energy and kayla transportation mode operation products
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basically it's kinetic energy energy that's related to speed and if
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you want something that goes fast you need to give
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to that thing a lot of speed a lot of kinetic energy so you need
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to do that as fast as possible so accelerates as fast as possible
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so you need to have a huge conversion ratio between
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your input energy annual output energy that's the power
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so then
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we know also from our uh british gentleman that's our discovered a few centuries
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ago ah he's cool exactly ten maybe you've heard of him um
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that's acceleration is inversely proportional to the mass so i
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know the key point to accelerate is basically
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to reduce the mass because as you may know for two card that will have a engines of the same power
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probably the one with the lightest will accelerate faster than the other
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one so that's not a key points and basically why linking
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power and mass you end up with power density how much
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power you can i gets from my system forgiven mess
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so our job as propulsion and levitation teen but also for the energy team uh
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that's uh i uh converts light for the amazing job is to reduce
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the mass for and extract more power of the system and it's always like that that you can achieve our
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will class records or system so basically look to white sport density to win the competition
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finally we have another phones back you
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because as you maybe know or not not all components can withstand vacuum
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are for example usually i'll leaving our object such
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as humans or animals uh cannot withstand like
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it but also some components cannot with them so we have to think about that
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another key point as the heating because all system have losses
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even the best propulsion system that can imaging will always have losses losses are basically just heat
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when you are driving your car or writing train or something like that they all losses it end up propulsion system
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but you have air around your vehicle so we can just transferred up excess heat to the air
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and that's all
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but just think the minutes
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when you when that high pulled chip or such system
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you don't have endured air cooled down or system
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and the the main problem we have in that case
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is that we don't want the passengers to be cooked
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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
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ah yes i'm french alike face sorry um
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basically so we have to think about those problems it's always an iterative problem because once was solution we need to see
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if we can integrate it but maybe the integration will decrease all poured in city
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so we will need to find another way to do it but maybe we'll start to think okay
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is my system vacuum proof on us and like that we do an iterative process and our thanks
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to michael likes and twice advises we have in mind how to do that now because
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work is quite a useful tool when it's the goal is to reach high speeds
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so
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the key point is always think
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how can accelerate my port and maximise my poured into
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a box i've some constraints of design all around
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i would like also to um thank our sponsors for their amazing
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support our first i would like to thank the good but
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they can figure out there was an and the all the presidency are all the people that i've helpless all that
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school what it's important thanks for being here tonight i think we can oppose you ha
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ha
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it's a beautiful adventure and basically all that we feel that all the school with with uh with us in that project and
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all this country where event is out with doesn't that project and that's why something beautiful
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also like to frank ah that from that show what is it should only
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be f. l. agrees giving us on mason's report it surely something um
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good place entrap such ah sponsors behind us also like to frank on
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national instruments console limo or that's and uh the pro shape
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forty both technical and all the things supports and that's really amazing i will like
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to uphold them because hospitals are really good home actually ah ha and i
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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
Panel
1 March 2018 · 7:04 p.m.