Allez, fin du suspense insoutenable !
Elon Musk avait annoncé il y a 15 jours, un moyen révolutionnaire de transport souterrain !
Avec la spéculation NY West Coast en peut être une heure, c'était du moins certaines versions qui circulaient !
Maintenant, le projet est révélé ! en 57 pages (J'ai lu le début ...)
Bon, on s'en doutait, c'est loin d'être facile ... et un peu re-dimentionné sous les 1600 Km, et seulement dans un vide "Statosphérique" et à des vitesses dans les supercruise !
Ça devient presque "Raisonnable"
Prendre en compte que Elon Musk, est le père de Space X et des véhicules Tesla, des projets qui marchent ! Certainement à prendre au sérieux ... bon, il s'appuie aussi sur des procédés que n'aurait pas renié l'ingénieur Jean Bertin !
Bon, si franchir le mur du son dans un vide relatif et dans des tuyaux, n'est pas techniquement hors de portée, il reste l'environnement, fuites, PB Sismiques, sécurité / Evacuation, et claustrophobie !
Restent qq tonnes de batteries Li-Ion sous les fesses , en plus du canon électrique, déjà inventé !
En attendant la télé transportation, on peut toujours rêver ...
Mais attention, ce bougre est capable de tout !
Vu il y a qq jours !
Maintenant, Ben Sandilands le résume ... pour un Sydney Melbourne, par exemple !
http://blogs.crikey.com.au/planetalking/2013/08/13/will-the-hyperloop-kill-high-speed-rail-and-jets/
Et nous renvoie vers les com de Elon Musk, juste sorties, comme annoncé !
Les 57 pages du projet :
http://www.spacex.com/sites/spacex/files/hyperloop_alpha-20130812.pdf
---------- Essai pour en copier qq lignes ---------------
Both for trip comfort and safety, it would be best to travel at high subsonic
speeds for a 350 mile journey. For much longer journeys, such as LA to NY, it
would be worth exploring super high speeds and this is probably technically
feasible, but, as mentioned above, I believe the economics would probably
favor a supersonic plane.
The approach that I believe would overcome the Kantrowitz limit is to mount
an electric compressor fan on the nose of the pod that actively transfers high
pressure air from the front to the rear of the vessel. This is like having a pump
in the head of the syringe actively relieving pressure.
It would also simultaneously solve another problem, which is how to create a
low friction suspension system when traveling at over 700 mph. Wheels don’t
work very well at that sort of speed, but a cushion of air does.
Air bearings, which use the same basic principle as an air hockey table, have been
demonstrated to work at speeds of Mach 1.1 with very low friction. In this
case, however, it is the pod that is producing the air cushion, rather than the
tube, as it is important to make the tube as low cost and simple as possible.
That then begs the next question of whether a battery can store enough energy
to power a fan for the length of the journey with room to spare. Based on our
calculations, this is no problem, so long as the energy used to accelerate the
pod is not drawn from the battery pack.
This is where the external linear electric motor comes in, which is simply a
round induction motor (like the one in the Tesla Model S) rolled flat. This
would accelerate the pod to high subsonic velocity and provide a periodic
reboost roughly every 70 miles.
The linear electric motor is needed for as little as ~1% of the tube length, so is not particularly costly.
Bon courage !
JPRS
Elon Musk avait annoncé il y a 15 jours, un moyen révolutionnaire de transport souterrain !
Avec la spéculation NY West Coast en peut être une heure, c'était du moins certaines versions qui circulaient !
Maintenant, le projet est révélé ! en 57 pages (J'ai lu le début ...)
Bon, on s'en doutait, c'est loin d'être facile ... et un peu re-dimentionné sous les 1600 Km, et seulement dans un vide "Statosphérique" et à des vitesses dans les supercruise !
Ça devient presque "Raisonnable"
Prendre en compte que Elon Musk, est le père de Space X et des véhicules Tesla, des projets qui marchent ! Certainement à prendre au sérieux ... bon, il s'appuie aussi sur des procédés que n'aurait pas renié l'ingénieur Jean Bertin !
Bon, si franchir le mur du son dans un vide relatif et dans des tuyaux, n'est pas techniquement hors de portée, il reste l'environnement, fuites, PB Sismiques, sécurité / Evacuation, et claustrophobie !
Restent qq tonnes de batteries Li-Ion sous les fesses , en plus du canon électrique, déjà inventé !
En attendant la télé transportation, on peut toujours rêver ...
Mais attention, ce bougre est capable de tout !
Vu il y a qq jours !
Maintenant, Ben Sandilands le résume ... pour un Sydney Melbourne, par exemple !
http://blogs.crikey.com.au/planetalking/2013/08/13/will-the-hyperloop-kill-high-speed-rail-and-jets/
Et nous renvoie vers les com de Elon Musk, juste sorties, comme annoncé !
Les 57 pages du projet :
http://www.spacex.com/sites/spacex/files/hyperloop_alpha-20130812.pdf
---------- Essai pour en copier qq lignes ---------------
Both for trip comfort and safety, it would be best to travel at high subsonic
speeds for a 350 mile journey. For much longer journeys, such as LA to NY, it
would be worth exploring super high speeds and this is probably technically
feasible, but, as mentioned above, I believe the economics would probably
favor a supersonic plane.
The approach that I believe would overcome the Kantrowitz limit is to mount
an electric compressor fan on the nose of the pod that actively transfers high
pressure air from the front to the rear of the vessel. This is like having a pump
in the head of the syringe actively relieving pressure.
It would also simultaneously solve another problem, which is how to create a
low friction suspension system when traveling at over 700 mph. Wheels don’t
work very well at that sort of speed, but a cushion of air does.
Air bearings, which use the same basic principle as an air hockey table, have been
demonstrated to work at speeds of Mach 1.1 with very low friction. In this
case, however, it is the pod that is producing the air cushion, rather than the
tube, as it is important to make the tube as low cost and simple as possible.
That then begs the next question of whether a battery can store enough energy
to power a fan for the length of the journey with room to spare. Based on our
calculations, this is no problem, so long as the energy used to accelerate the
pod is not drawn from the battery pack.
This is where the external linear electric motor comes in, which is simply a
round induction motor (like the one in the Tesla Model S) rolled flat. This
would accelerate the pod to high subsonic velocity and provide a periodic
reboost roughly every 70 miles.
The linear electric motor is needed for as little as ~1% of the tube length, so is not particularly costly.
Bon courage !
JPRS