baucwen hysteresis model in labview

[prasad145]

I want to design a LabVIEW VI for baucwen hysteresis equation. I have attached the equation with parameters. I tried to develop it on LabVIEW but facing problem in feedback node. Not able to get the feedback after the Inegration. i have attached the labview VI. I designed this model in MATLAB Simulink environment and i got the result but not able to get result in LabVIEW VI. Please help me.  

Thank You 

[GerdW]

Hi prasad,

Simulink will try to calculate that algorithm sample for sample (internally):

The problem was: the feedback node wasn't initialized, so gave an empty array on first call. Trying to calc some math with empty array will also result in empty arrays…

[prasad145]

can you please share that VI file 

[GerdW]

Hi prasad,

it's a snippet…

(Everything is visible in the snippet, so you can easily recreate it!)

[prasad145]

i am beginner to LabVIEW and facing problem in connecting to the derivative block. it will be very helpful if i get the VI file 

Thank You 

[GerdW]

Hi prasad,

as can be seen by the icon it's the "Point by Point Derivative" function. (The same "pt-by-pt" applies to the integrator.)

[prasad145]

I have recreated the VI and attached the same. But i am not getting the result as per the MATLAB Simulink. Please suggest me the correction that i can do to get the result. I have attached the image of Simulink Result. 

Thank You 

[GerdW]

Hi prasad,

for me it looks quite nice:

[prasad145]

Please suggest me any correction that i can do in the VI I have attached. Thank You so much for the result. 

[prasad145]

i am getting this result . I have attached the pic