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音圈电机选型计算

音圈电机选型

主要确定:

电机最大推力Fmax和连续推力Frms

电机行程


Calculation of Motor Power Dissipation for Different Motion Profiles


Symbols:


X = Distance to travel in meter
T1 = Acceleration time in second
T2 = Coasting time in second
T3 = Deceleration time in second
T4 = Stop time in second
T = T1 + T2 + T3 = Time to move

VPeak = Peak velocity in meter / second
a1 = Acceleration in meter / second2
a3 = Deceleration in meter / second2
F1 = Force during acceleration in Newton
F2 = Force during coasting
F3 = Force during deceleration in Newton
F4 = Force during stop time
Frms = The Root Mean Square (RMS) of the force
m = Total moving mass, mass of the motor + all other masses attached to it in Kg
Irms = The Root Mean Square (RMS) of current in Amp
Kf = Force constant in Newton / Amp
Ke = BEMF constant in Volts / meter / second
R = Resistance of the motor in Ohm
f = Frequency in Hz
P = Power dissipation in Watt


1.  Trapezoidal Velocity Profile












Should be equal or less than the CONTINUOUS FORCE of the motor.

P should be equal or less than the MAX CONTINOUS POWER of the motor.


2. Trapezoidal Velocity Profile with Minimum Power Dissipation


3.  Triangular Velocity Profile with Fastest Move Time


4. Sinusoidal Profile


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