Engee documentation

Sinusoidal Rotational Velocity Source

Source of sinusoidal angular velocity.

blockType: Engee1DMechanical.Sources.Rotational.SinusoidalVelocity

sinusoidal rotational velocity source

Path in the library:

/Physical Modeling/1D Mechanical/Sources/Sinusoidal Rotational Velocity Source

Description

The Sinusoidal Rotational Velocity Source unit is a constant offset sinusoidal angular velocity source.

Relative angular velocity between stator and rotor:

where

  • - is the relative angular velocity;

  • - is the absolute angular velocity at the rotor boundary;

  • - absolute angular velocity at the stator boundary.

The governing equation for sinusoidal angular velocity:

where

  • - is the output angular velocity;

  • - output velocity offset;

  • - peak amplitude of the sinusoid;

  • - frequency of the sinusoid in Hz;

  • - time;

  • - phase shift of the sinusoid.

Ports

Conserving

# F — rotor
`rotational mechanics

Details

A mechanical rotational port, corresponding to a rotor.

Program usage name

rod_flange

# B — stator
`rotational mechanics

Details

Mechanical rotary port, corresponds to the stator.

Program usage name

case_flange

Parameters

Parameters

# Offset — output speed offset
rad/s | deg/s | rad/min | deg/min | rpm | rps

Details

Speed offset.

Units

rad/s | deg/s | rad/min | deg/min | rpm | rps
Default value

0.0 rad/s
Program usage name

offset
Evaluatable

Yes

# Sinusoid peak amplitude — output velocity amplitude
rad/s | deg/s | rad/min | deg/min | rpm | rps

Details

Amplitude of the output sinusoidal angular velocity.

Units

rad/s | deg/s | rad/min | deg/min | rpm | rps
Default value

1.0 rad/s
Program usage name

amplitude
Evaluatable

Yes

# Phase shift — output speed phase shift
rad | deg | rev | mrad | arcsec | arcmin | gon

Details

Phase shift of the output sinusoidal angular velocity.

Units

rad | deg | rev | mrad | arcsec | arcmin | gon
Default value

0.0 deg
Program usage name

phase_shift
Evaluatable

Yes

# Frequency — output speed frequency
Hz | kHz | MHz | GHz

Details

The frequency of the output sinusoidal angular velocity. The frequency must be .

Units

Hz | kHz | MHz | GHz
Default value

1.0 Hz
Program usage name

frequency
Evaluatable

Yes