This package contains ideal sources to drive 1D mechanical translational drive trains.
Extends from Modelica.Icons.SourcesPackage (Icon for packages containing sources).Name | Description |
---|---|
![]() | Forced movement of a flange according to a reference position |
![]() | Forced movement of a flange according to a reference speed |
![]() | Forced movement of a flange according to an acceleration signal |
![]() | Forced movement of a flange according to a position, velocity and acceleration signal |
![]() | External force acting on a drive train element as input signal |
![]() | Input signal acting as torque on two flanges |
![]() | Linear dependency of force versus speed |
![]() | Quadratic dependency of force versus speed |
![]() | Constant force, not dependent on speed |
![]() | Constant speed, not dependent on force |
![]() | Constant force, not dependent on speed |
The input signal s_ref defines the reference position in [m]. Flange flange_b is forced to move relative to the support connector according to this reference motion. According to parameter exact (default = false), this is done in the following way:
The input signal can be provided from one of the signal generator blocks of the block library Modelica.Blocks.Sources.
Extends from Modelica.Mechanics.Translational.Interfaces.PartialElementaryOneFlangeAndSupport2 (Partial model for a component with one translational 1-dim. shaft flange and a support used for textual modeling, i.e., for elementary models).
Name | Description |
---|---|
useSupport | = true, if support flange enabled, otherwise implicitly grounded |
exact | true/false exact treatment/filtering the input signal |
f_crit | if exact=false, critical frequency of filter to filter input signal [Hz] |
Name | Description |
---|---|
flange | Flange of component |
support | Support/housing of component |
s_ref | Reference position of flange as input signal [m] |
The input signal v_ref defines the reference speed in [m/s]. Flange flange_b is forced to move relative to the support connector according to this reference motion. According to parameter exact (default = false), this is done in the following way:
The input signal can be provided from one of the signal generator blocks of the block library Modelica.Blocks.Sources.
Extends from Modelica.Mechanics.Translational.Interfaces.PartialElementaryOneFlangeAndSupport2 (Partial model for a component with one translational 1-dim. shaft flange and a support used for textual modeling, i.e., for elementary models).
Name | Description |
---|---|
useSupport | = true, if support flange enabled, otherwise implicitly grounded |
exact | true/false exact treatment/filtering the input signal |
f_crit | if exact=false, critical frequency of filter to filter input signal [Hz] |
Name | Description |
---|---|
flange | Flange of component |
support | Support/housing of component |
v_ref | Reference speed of flange as input signal [m/s] |
The input signal a in [m/s2] moves the 1D translational flange connector flange_b with a predefined acceleration, i.e., the flange is forced to move relative to the support connector with this acceleration. The velocity and the position of the flange are also predefined and are determined by integration of the acceleration.
The acceleration "a(t)" can be provided from one of the signal generator blocks of the block library Modelica.Blocks.Source.
Extends from Modelica.Mechanics.Translational.Interfaces.PartialElementaryOneFlangeAndSupport2 (Partial model for a component with one translational 1-dim. shaft flange and a support used for textual modeling, i.e., for elementary models).
Name | Description |
---|---|
useSupport | = true, if support flange enabled, otherwise implicitly grounded |
Name | Description |
---|---|
flange | Flange of component |
support | Support/housing of component |
a_ref | Absolute acceleration of flange as input signal [m/s2] |
Flange flange_b is forced to move relative to the support connector with a predefined motion according to the input signals:
u[1]: position of flange u[2]: velocity of flange u[3]: acceleration of flange
The user has to guarantee that the input signals are consistent to each other, i.e., that u[2] is the derivative of u[1] and that u[3] is the derivative of u. There are, however, also applications where by purpose these conditions do not hold. For example, if only the position dependent terms of a mechanical system shall be calculated, one may provide position = position(t) and set the velocity and the acceleration to zero.
The input signals can be provided from one of the signal generator blocks of the block library Modelica.Blocks.Sources.
Extends from Modelica.Mechanics.Translational.Interfaces.PartialElementaryOneFlangeAndSupport2 (Partial model for a component with one translational 1-dim. shaft flange and a support used for textual modeling, i.e., for elementary models).
Name | Description |
---|---|
useSupport | = true, if support flange enabled, otherwise implicitly grounded |
Name | Description |
---|---|
flange | Flange of component |
support | Support/housing of component |
u[3] | Position, velocity and acceleration of flange as input signals |
The input signal "f" in [N] characterizes an external force which acts (with positive sign) at a flange, i.e., the component connected to the flange is driven by force f.
Input signal f can be provided from one of the signal generator blocks of Modelica.Blocks.Source.
Extends from Modelica.Mechanics.Translational.Interfaces.PartialElementaryOneFlangeAndSupport2 (Partial model for a component with one translational 1-dim. shaft flange and a support used for textual modeling, i.e., for elementary models).
Name | Description |
---|---|
useSupport | = true, if support flange enabled, otherwise implicitly grounded |
Name | Description |
---|---|
flange | Flange of component |
support | Support/housing of component |
f | Driving force as input signal [N] |
The input signal "f" in [N] characterizes an external force which acts (with positive sign) at both flanges, i.e., the components connected to these flanges are driven by force f.
Input signal s can be provided from one of the signal generator blocks of Modelica.Blocks.Source.
Extends from Translational.Interfaces.PartialTwoFlanges (Component with two translational 1D flanges).
Name | Description |
---|---|
flange_a | (left) driving flange (flange axis directed in to cut plane, e. g. from left to right) |
flange_b | (right) driven flange (flange axis directed out of cut plane) |
f | Driving force as input signal [N] |
Model of force, linearly dependent on velocity of flange.
Parameter ForceDirection chooses whether direction of force is the same in both directions of movement or not.
Name | Description |
---|---|
useSupport | = true, if support flange enabled, otherwise implicitly grounded |
f_nominal | Nominal force (if negative, force is acting as load) [N] |
ForceDirection | Same direction of force in both directions of movement |
v_nominal | Nominal speed [m/s] |
Name | Description |
---|---|
flange | Flange of component |
support | Support/housing of component |
Model of force, quadratic dependent on velocity of flange.
Parameter ForceDirection chooses whether direction of force is the same in both directions of movement or not.
Name | Description |
---|---|
useSupport | = true, if support flange enabled, otherwise implicitly grounded |
f_nominal | Nominal force (if negative, force is acting as load) [N] |
ForceDirection | Same direction of force in both directions of movement |
v_nominal | Nominal speed [m/s] |
Name | Description |
---|---|
flange | Flange of component |
support | Support/housing of component |
Model of constant force, not dependent on velocity of flange.
Positive force acts accelerating.
Name | Description |
---|---|
useSupport | = true, if support flange enabled, otherwise implicitly grounded |
f_constant | Nominal force (if negative, force is acting as load) [N] |
Name | Description |
---|---|
flange | Flange of component |
support | Support/housing of component |
Model of fixed velocity of flange, not dependent on force.
Extends from Modelica.Mechanics.Translational.Interfaces.PartialForce (Partial model of a force acting at the flange (accelerates the flange)).
Name | Description |
---|---|
useSupport | = true, if support flange enabled, otherwise implicitly grounded |
v_fixed | Fixed speed (if negative, force is acting as load) [m/s] |
Name | Description |
---|---|
flange | Flange of component |
support | Support/housing of component |
Model of a force step at time .
Positive force acts accelerating.
Name | Description |
---|---|
useSupport | = true, if support flange enabled, otherwise implicitly grounded |
stepForce | Height of force step (if negative, force is acting as load) [N] |
offsetForce | Offset of force [N] |
startTime | Force = offset for time < startTime [s] |
Name | Description |
---|---|
flange | Flange of component |
support | Support/housing of component |