Ideal Torque Source

Ideal source of mechanical energy that generates torque proportional to the input signal

• Library:

• Simscape / Foundation Library / Mechanical / Mechanical Sources

• 

Description

The Ideal Torque Source block represents an ideal source of mechanical energy that generates torque proportional to the input physical signal. The source is ideal in a sense that it is assumed to be powerful enough to maintain specified torque regardless of the angular velocity at source terminals.

Connections R and C are mechanical rotational conserving ports. Port S is a physical signal port, through which the control signal that drives the source is applied. You can use the entire variety of Simulink^® signal sources to generate the desired torque variation profile. Positive signal at port S generates torque acting from C to R. The torque generated by the source is directly proportional to the signal at the control port S.

The block positive direction is from port C to port R. This means that the torque is positive if it acts in the direction from C to R. The relative velocity is determined as ω = ω_R – ω_C, where ω_R, ω_C are the absolute angular velocities at ports R and C, respectively, and it is negative if velocity at port R is greater than that at port C. The power generated by the source is negative if the source delivers energy to port R.

Ports

Input

S — Control signal, N*m

physical signal

Physical signal input port, through which the control signal that drives the source is applied.

Conserving

R — Rod

mechanical rotational

Mechanical rotational conserving port associated with the source moving part (rod).

C — Case

mechanical rotational

Mechanical rotational conserving port associated with the source reference point (case).

Model Examples

Permanent Magnet DC Motor

This model is based on a Faulhaber Series 0615 DC-Micromotor. The parameters values are set to match the 1.5V variant of this motor. The model uses these parameters to verify manufacturer-quoted no-load speed, no-load current, and stall torque.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.