how to put input value for FEM-Parameterized Linear Actuator (.1)Flux partial derivative wrt current, dPhi(i,x)/di (unit is web/A )2)Flux partial derivative wrt displacement)
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how to put value for FEM-Parameterized Linear Actuator?
I have matrix values of magnetic flux (web) for displacement vector with reaspect to current vector.in matlab,FEM-Parameterized Linear Actuator block have some inputs.1)Flux partial derivative wrt current, dPhi(i,x)/di (unit is web/A )2)Flux partial derivative wrt displacement, dPhi(i,x)/dx (unit is web/m).
My question is
1) how to put values for Flux partial derivative wrt current, dPhi(i,x)/d and Flux partial derivative wrt displacement, dPhi(i,x)/dx.FEM-Parameterized Linear Actuator block need unit of web/A and web/m . but I have only magentic flux (web).So,How to convert value weber to weber/A and weber to weber/m.
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Rick Hyde
le 14 Mar 2024
MATLAB provides lots of ways for you to determine partial derivatives from the flux. One way, for example, is to fit a polynomial and then differentiate the polynomial terms to get the partial derivative. You could also just fit the data (suggest the 'makima' option) and then numerically determine the gradient at the break points. For an example that uses the polynomial approach see https://www.mathworks.com/help/sps/ug/torque-motor-parameterization.html - see Calculate and plot flux data (see code) link from the model.
Hope that helps
Rick
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