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  1. #21
    deadsea is offline Junior Member Newbie
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    Quote Originally Posted by sangoku1 View Post
    Hell no, i dont use cad!!!! i use solidworks, 2006 edition(if you had readet the tread unthil the end you wold note that). GOD DAMN i would be if i use cad, i dont even know how to use it. These drawings are just for easier thinking for me. i pousted them, but now they lok way difrent. I had to change the axsis, the transmosion, and the dumphers radicaly. The difrense betwem these two programs is radical. Solid work can simulate phizical movments and calculate material (forgot the word for opterecenje, you know when metal is under presure, the elasticy of methal, and so on, sory for that, but you get the point, i can input the elmagnetic conduction forse annd sea the simulation, that is the diferense.)
    Sheesh... If you don't know that cad stands for Computer Aided Design... I have nothing to say about your credibility.... And simulations are only as good as the data input.. I've seen project designs that work perfectly in simulations only to get stuck and jam on the very first try in real life...

    Quote Originally Posted by sangoku1 View Post
    From jour touchig words for my profesion, now a few words. Well to be honest i didnt know that rotor and stator are the same words in english too, thank you. ok now in real terms so that jou can get it. Where the rotor is normaly, in the midle, that is the stator, and the rotor is on the outside. If jou are intrested in why to do that, it is becouse the angel fose is grater by grater radius(but probably you arent.)
    If you had just said external rotor design, i might have believed you... My professors in the drives classes had horrendous English but still they could spell the proper components and theories... Sure their grammar and pronunciation sucked but key terms ALWAYS came out right....

    Quote Originally Posted by sangoku1 View Post
    the phizical calculations leve to me. and jou had right speed is relativ so, think about that.
    Well, you have not supplied any calculations at all... Just statements that you're right and I'm wrong...

    How about a quiz? Basic motor knowledge that any electrical engineer capable of making a motor will know... Of course, the info you give out will not be sufficient for reproducing your design...

    Is your motor synchronous, asynchronous?
    Independently excited? Shunt type? Perma type?
    Number of poles?
    Speed controlled through f/v? Chopper? Buck boost converter? PWM?

    PS: Relativistic speeds = speeds approaching the speed of light. Does not mean that speed is relative.. That's something else altogether... Covered in basic physics...

  2. #22
    Zenkaiu is offline Senior Member Well Known
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    Quote Originally Posted by meokanako View Post
    Well, I'm a first year electronics engineer student this year and my mechanical skills aren't that good. However, me and my friends from Mechanical Engeering talked about it before and they say that it's possible but they're too lazy and busy to bother about it.

    If you really did it, patent it before selling lol.


    And we have Nigerians here in Nottingham University, and their English are definately refined lol.
    lol, you didnt get the joke. Like I said, not insulting nigerians....

  3. #23
    scratch75 is offline Junior Member Newbie
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    experimental physics is just that regardless of language used.

    personally I'm curious to see blueprints and potential spec sheets of these hypothetical AT.
    it's lightsaber technology imo.
    just because the therioes and power output/motor size/power supply don't tally up with current spec of technology doesn't mean it's not POTENTIALLY possible.

    not being an engineer by any stretch of the imagination, wouldn't some kind of minature generator be usable? if the initiall push off by the wearer start the charging process this power could be used to give life to the motors negating the use for larger power cells? Dynamo style, yeah old school tech brought up to speed!!

  4. #24
    deadsea is offline Junior Member Newbie
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    Quote Originally Posted by scratch75 View Post
    personally I'm curious to see blueprints and potential spec sheets of these hypothetical AT.
    it's lightsaber technology imo.
    just because the therioes and power output/motor size/power supply don't tally up with current spec of technology doesn't mean it's not POTENTIALLY possible.

    not being an engineer by any stretch of the imagination, wouldn't some kind of minature generator be usable? if the initiall push off by the wearer start the charging process this power could be used to give life to the motors negating the use for larger power cells? Dynamo style, yeah old school tech brought up to speed!!
    I've nothing against experimental physics but all fluff and no substance can hardly be called that... I'd be very happy if he actually made that type of motor... That will make fully electric vehicles very very very possible in the near future and i could just skate to work rather than get stuck in a damn bus for hours...

    Unfortunately, design advances still cannot violate the basic laws of physics. The force generated by a current carrying conductor is governed by the relation of F=BIL, where F is the force generated, B is the magnetic field present, I the current the wire carries and L the length of the wire.

    As you can see, to increase the force generated, either B I or L has to be increased and that will bring about a whole truckload of problems again... But unfortunately, that is a law of nature and not something that can be changed by an innovative design alone.

    The mini generator idea could be feasible, but that is pretty much not possible with current technology. I believe we've all seen a dynamo that attached to a bicycle wheel, the one that barely cranks out enough juice to power the lights? Not exactly capable of generating the kind of power required to drive such a powerful motor.. But that might be possible in the future with better materials such as nanowires. We'd pretty much be able to coil a thousand miles of wire into size of that dynamo...

    Actually with super capacitors (those by MIT not the ones on sale now), the problem of energy storage might be gone altogether... Those things have the potential for a massive storage capacity... But that's another 5 years into the future...

  5. #25
    sangoku1 is offline Junior Member Newbie
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    Quote Originally Posted by deadsea View Post
    I've nothing against experimental physics but all fluff and no substance can hardly be called that... I'd be very happy if he actually made that type of motor... That will make fully electric vehicles very very very possible in the near future and i could just skate to work rather than get stuck in a damn bus for hours...

    Unfortunately, design advances still cannot violate the basic laws of physics. The force generated by a current carrying conductor is governed by the relation of F=BIL, where F is the force generated, B is the magnetic field present, I the current the wire carries and L the length of the wire.

    As you can see, to increase the force generated, either B I or L has to be increased and that will bring about a whole truckload of problems again... But unfortunately, that is a law of nature and not something that can be changed by an innovative design alone.

    The mini generator idea could be feasible, but that is pretty much not possible with current technology. I believe we've all seen a dynamo that attached to a bicycle wheel, the one that barely cranks out enough juice to power the lights? Not exactly capable of generating the kind of power required to drive such a powerful motor.. But that might be possible in the future with better materials such as nanowires. We'd pretty much be able to coil a thousand miles of wire into size of that dynamo...

    Actually with super capacitors (those by MIT not the ones on sale now), the problem of energy storage might be gone altogether... Those things have the potential for a massive storage capacity... But that's another 5 years into the future...
    wall that is all nise and japyy, but where do i get these tehnology? ann i am just trying to build in a motor in the wells, well first i didnt want to build in the motor, to be frank, first i projected the mehanizam that i was talking erlier. But in the end, i coldnt just resist the option. Well in the end i started to projet im, so dont ekspect a miricle from the engine, and by the way the magnetic induction is also in proportion of the amper strength. so if i use the motor just for an instant about 1-2 seconds it wouldnt present a problem to bring up the power nedet.
    And plese dont embarese your self with the nano wires, i cold do that, i mean bring up a kilometar of wires, wal with golden wires but that is to exspensive.
    Last edited by sangoku1; 04-16-2007 at 03:13 PM.

  6. #26
    deadsea is offline Junior Member Newbie
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    Quote Originally Posted by sangoku1 View Post
    wall that is all nise and japyy, but where do i get these tehnology? ann i am just trying to build in a motor in the wells, well first i didnt want to build in the motor, to be frank, first i projected the mehanizam that i was talking erlier. But in the end, i coldnt just resist the option. Well in the end i started to projet im, so dont ekspect a miricle from the engine, and by the way the magnetic induction is also in proportion of the amper strength. so if i use the motor just for an instant about 1-2 seconds it wouldnt present a problem to bring up the power nedet.
    And plese dont embarese your self with the nano wires, i cold do that, i mean bring up a kilometar of wires, wal with golden wires but that is to exspensive.
    Aw come on... First you say you built the motor, then you say it's a simulation. Then now it's a projection...

    And you're just repeating what i said. F=BIL... For impulsive loads like that you might be able to get short bursts of power above the rated value of the motor. But that is totally not sustainable as the heat generated overloads the heat capacity of the motor... Unless of course a long cool down is provided which is totally against the use in this case. But even then, that is still limited to about 2-3 times the rated output...

    And the power in actual motors does not scale linearly. Eventually the core saturates and the force is no longer directly proportional to the conductor current. But i believe you knew that right?

    And i can't believe that you actually thought that you could buy nanowires. The longest nanowire ever made, gold or otherwise, is not even close to 1cm and is so fine that you can't even see it under a microscope, much less coil it at home... Cost is not the concern here, making them is the actual problem..

    Well now, how about the quiz? Shouldn't take you more than a min or so for a third year "elekro" engineering student.

    Is your motor synchronous, asynchronous?
    Independently excited? Shunt type? Perma type?
    Number of poles?
    Speed controlled through f/v? Chopper? Buck boost converter? PWM?

    And in case you think i'm asking impossible questions, I am an electrical engineering graduate specializing in micro-electronics and electric drives. All this information is covered in the introductory lectures of the courses offered for electrical engineers.

  7. #27
    xxsubzero7xx is offline Junior Member Newbie
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    my 2 cent

    ENERGY IS CONSERVED... and in real life less than 50% is kept in a system

    WIRE WITH NO RESISTENCE??? WEEEEEEEE that be great i would overclock the shit out of my computer

    Solenoid with nano wires(~infinite amounts of coils) would never work since solenoid need isolated wires, the ones we have now are coated with special resistor, and having a wire that thin and long would have a gigantic resistance

    CURRENT needed to power such a device would be well gigantic... have fun finding a emf for that, yet small enough to be carried, wanna show me how u can do cold fusion?? (dude tell me and ill make u reallly really rich person -.~)

    And when u look at things like rail guns(currently only used on cruisers to lunch missiles) that transform electrical potential to kinetic energy the US military can barely contain such forces, if we could, soldiers in Iraq would probably be firing molten iron at buildings beyond the speed of sound


    final thoughts "if it war so easy, someone else would have already made it"
    u know those German/Japaneses people! THEY CRAZY!!!!
    Last edited by xxsubzero7xx; 04-16-2007 at 08:40 PM.

  8. #28
    KuroAlma is offline Junior Member Newbie
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    Quote Originally Posted by xxsubzero7xx View Post
    my 2 cent

    ENERGY IS CONSERVED... and in real life less than 50% is kept in a system

    WIRE WITH NO RESISTENCE??? WEEEEEEEE that be great i would overclock the shit out of my computer

    Solenoid with nano wires(~infinite amounts of coils) would never work since solenoid need isolated wires, the ones we have now are coated with special resistor, and having a wire that thin and long would have a gigantic resistance

    CURRENT needed to power such a device would be well gigantic... have fun finding a emf for that, yet small enough to be carried, wanna show me how u can do cold fusion?? (dude tell me and ill make u reallly really rich person -.~)

    And when u look at things like rail guns(currently only used on cruisers to lunch missiles) that transform electrical potential to kinetic energy the US military can barely contain such forces, if we could, soldiers in Iraq would probably be firing molten iron at buildings beyond the speed of sound


    final thoughts "if it war so easy, someone else would have already made it"
    u know those German/Japaneses people! THEY CRAZY!!!!

    actually i believe germany already has a motorized skate some where on the lines of an at but its in develpoment ill see if i can find the article my friend found later

  9. #29
    xxsubzero7xx is offline Junior Member Newbie
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    well but will it be air trek?? fast enough to accelerate us, light enough to let us at least jump somewhat height, then allowing safe landing??

    i would love to grind a rail on motorized skates

    pls show some evidence for the skate u talked bout??

    and no i don't want skates with a giant motor on the back, i want something that has the motor inside the wheels

  10. #30
    BlackSapphire is offline Senior Member Frequent Poster
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    does your calculations for the motor even include the force for the wheels to rotate while carrying the weight of a normal person (150lbs)?
    When the mind does not become attached to anything, there are no obstacles and fear does not exist. This mind goes beyond all disruptive views and attains Nirvana
    wisdom of enlightenment as the great unexplainable true word
    - Buddish Lotus Sutra


 

 
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