Electromechanical Actuator

Hi there,

Can anyone please help me. I am trying to combine mechanical model which I have developed in Simscape with a DC motor model which I have made using differential equations. The motor gives electromechanical torque and speed and rotor angle. So my doubt is to how to use these value to generate the force for my mechanical modeled actuator. Please reply if you need to know more and what you want to know. And if you understood then tell me how to get this thing done.

regards,

Ankit Sharma

Answer 1

[Arnaud Miege]

I would strongly advise that you model your DC motor in Simscape as well rather than Simulink, this will avoid algebraic loops and the interface problem you are asking about.

However, if you really want to do this, I would suggest using the torque output of the motor model, feed it to an Ideal Torque Source block via a Simulink-PS Converter block. I would then measure the rotational speed on the mechanical side using an Ideal Rotational Motion Sensor block and feed it as an input to the motor model via a PS-Simulink Converter block. You can't specify both the speed and torque of the motor at the same time, if one's an output, the other one has to be an input.

HTH,

Arnaud

Answer 2

[Arkadiy Turevskiy]

Take a look at this webinar, it shows this exact workflow you are trying to follow: <http://www.mathworks.com/company/events/webinars/wbnr41259.html?id=41259&p1=525985470>

HTH. Arkadiy

[Ankit]

Hi Arkadiy,

I have this webinar but sorry to tell this doesnt solve my problem. Actually in this webinar also the creator has used a predefined block of DC motor whereas I want some kind of interfacing element in which I can feed the torque and rotor theta ...which can be converted into mechanical rotations and that can be feed into wheel axel to give translational force to the actuator.

If you can help me in this then I'll be grateful to you !!!