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  1. mgagne

    Best device for low power DC current generator

    I know that. I will be able to adjust the load on the generator in order to set the voltage. Martin
  2. mgagne

    Best device for low power DC current generator

    thanks for the answers. I would like to clarify my question. What I want to do is convert mechanical power to electric power. Since I don't have a lot of power (between 60 to 100W) I want to have the more efficient solution. I have found a 10A permanent magnet DC generator that can do the job. I...
  3. mgagne

    Best device for low power DC current generator

    Hi, I would like to know what is the best device to use to convert mechanical power to DC current (low voltage 12 V, low power, about 60 to 100 Watts). I want to know if a brushless DC motor is the right choice? Is it more efficient to use a 12 VDC brushless motor or a higher voltage motor (90...
  4. mgagne

    Allowable stress in bolts

    I would like to know if the shear stress has an influence on the allowable tension stress even if the shear is small. In the LRFD table J3.5, there is a formula of the form 117-2.5*fv<=90. So for small values of fv, the allowable tension stress stay at 90 which is the maximum. Is it the same...
  5. mgagne

    Allowable stress in bolts

    I want to checked bolts in a capacitor bank structure for seismic and wind load cases. I use the IEEE 693-1997 standard which refers to the AISC Manual of Steel Construction ASD. Someone tells me to use allowable stresses of 0.17*F_tu in shear and 0.33*F_tu in tension which are supposed to came...
  6. mgagne

    Allowable stress in bolts

    I want to checked bolts in a capacitor bank structure for seismic and wind load cases. I use the IEEE 693-1997 standard which refers to the AISC Manual of Steel Construction ASD. Someone tells me to use allowable stresses of 0.17*F_tu in shear and 0.33*F_tu in tension which are supposed to came...

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