This information is part of the Modelica Standard Library maintained by the Modelica Association.

Added 55 new components. In particular, added new package Thermal.HeatTransfer for modeling of lumped heat transfer, added model LossyGear in Mechanics.Rotational to model gear efficiency and bearing friction according to a new theory in a robust way, added 10 new models in Electrical.Analog and added several other new models and improved existing models.

New components

Modelica.Blocks.
Continuous.Der	Derivative of input (= analytic differentiations)
Examples	Demonstration examples of the components of this package
Nonlinear.VariableLimiter	Limit the range of a signal with variable limits
Modelica.Blocks.Interfaces.
RealPort	Real port (both input/output possible)
IntegerPort	Integer port (both input/output possible)
BooleanPort	Boolean port (both input/output possible)
SIMO	Single Input Multiple Output continuous control block
IntegerBlockIcon	Basic graphical layout of Integer block
IntegerMO	Multiple Integer Output continuous control block
IntegerSignalSource	Base class for continuous Integer signal source
IntegerMIBooleanMOs	Multiple Integer Input Multiple Boolean Output continuous control block with same number of inputs and outputs
BooleanMIMOs	Multiple Input Multiple Output continuous control block with same number of inputs and outputs of Boolean type
BusAdaptors	Components to send signals to the bus or receive signals from the bus
Modelica.Blocks.Math.
RealToInteger	Convert real to integer signals
IntegerToReal	Convert integer to real signals
Max	Pass through the largest signal
Min	Pass through the smallest signal
Edge	Indicates rising edge of Boolean signal
BooleanChange	Indicates Boolean signal changing
IntegerChange	Indicates integer signal changing
Modelica.Blocks.Sources.
IntegerConstant	Generate constant signals of type Integer
IntegerStep	Generate step signals of type Integer
Modelica.Electrical.Analog.Basic.
HeatingResistor	Temperature dependent electrical resistor
OpAmp	Simple nonideal model of an OpAmp with limitation
Modelica.Electrical.Analog.Ideal.
IdealCommutingSwitch	Ideal commuting switch
IdealIntermediateSwitch	Ideal intermediate switch
ControlledIdealCommutingSwitch	Controlled ideal commuting switch
ControlledIdealIntermediateSwitch	Controlled ideal intermediate switch
IdealOpAmpLimited	Ideal operational amplifier with limitation
IdealOpeningSwitch	Ideal opener
IdealClosingSwitch	Ideal closer
ControlledIdealOpeningSwitch	Controlled ideal opener
ControlledIdealClosingSwitch	Controlled ideal closer
Modelica.Electrical.Analog.Lines.
TLine1	Lossless transmission line (Z0, TD)
TLine2	Lossless transmission line (Z0, F, NL)
TLine2	Lossless transmission line (Z0, F)
Modelica.Icons.
Function	Icon for a function
Record	Icon for a record
Enumeration	Icon for an enumeration
Modelica.Math.
tempInterpol2	temporary routine for vectorized linear interpolation (will be removed)
Modelica.Mechanics.Rotational.
Examples.LossyGearDemo1	Example to show that gear efficiency may lead to stuck motion
Examples.LossyGearDemo2	Example to show combination of LossyGear and BearingFriction
LossyGear	Gear with mesh efficiency and bearing friction (stuck/rolling possible)
Gear2	Realistic model of a gearbox (based on LossyGear)
Modelica.SIunits.
Conversions	Conversion functions to/from non SI units and type definitions of non SI units
EnergyFlowRate	Same definition as Power
EnthalpyFlowRate	Real (final quantity="EnthalpyFlowRate", final unit="W")
Modelica.
Thermal.HeatTransfer	1-dimensional heat transfer with lumped elements
ModelicaAdditions.Blocks.Discrete.
TriggeredSampler	Triggered sampling of continuous signals
TriggeredMax	Compute maximum, absolute value of continuous signal at trigger instants
ModelicaAdditions.Blocks.Logical.Interfaces.
BooleanMIRealMOs	Multiple Boolean Input Multiple Real Output continuous control block with same number of inputs and outputs
RealMIBooleanMOs	Multiple Real Input Multiple Boolean Output continuous control block with same number of inputs and outputs
ModelicaAdditions.Blocks.Logical.
TriggeredTrapezoid	Triggered trapezoid generator
Hysteresis	Transform Real to Boolean with Hysteresis
OnOffController	On-off controller
Compare	True, if signal of inPort1 is larger than signal of inPort2
ZeroCrossing	Trigger zero crossing of input signal
ModelicaAdditions.
Blocks.Multiplexer.Extractor	Extract scalar signal out of signal vector dependent on IntegerRealInput index
Tables.CombiTable1Ds	Table look-up in one dimension (matrix/file) with only single input

Package-specific Changes

• All example models made encapsulated
• Upper case constants changed to lower case (cf. Modelica.Constants)
• Introduced Modelica.SIunits.Wavelength due to typo
• Introduced ModelicaAdditions.Blocks.Logical.Interfaces.Comparison due to typo
• Changed these components of *.Blocks to block class, which have not been already of block type
• Changed *.Interfaces.RelativeSensor to partial models

Class-specific Changes

Modelica.SIunits

Removed final from quantity attribute for Mass and MassFlowRate.

Modelica.Blocks.Math.Sum

Implemented avoiding algorithm section, which would lead to expensive function calls.

Modelica.Blocks.Sources.Step

block Step "Generate step signals of type Real"
        parameter Real height[:]={1} "Heights of steps";
 // parameter Real offset[:]={0} "Offsets of output signals";
// parameter SIunits.Time startTime[:]={0} "Output = offset for time < startTime";
// extends Interfaces.MO          (final nout=max([size(height, 1); size(offset, 1); size(startTime, 1)]));
        extends Interfaces.SignalSource(final nout=max([size(height, 1); size(offset, 1); size(startTime, 1)]));

Modelica.Blocks.Sources.Exponentials

Replaced usage of built-in function exp by Modelica.Math.exp.

Modelica.Blocks.Sources.TimeTable

Interface definition changed from

parameter Real table[:, :]=[0, 0; 1, 1; 2, 4] "Table matrix (time = first column)";

to

parameter Real table[:, 2]=[0, 0; 1, 1; 2, 4] "Table matrix (time = first column)";

Did the same for subfunction getInterpolationCoefficients.

Bug in getInterpolationCoefficients for startTime <> 0 fixed:

...
        end if;
  end if;
  // Take into account startTime "a*(time - startTime) + b"
  b := b - a*startTime;
end getInterpolationCoefficients;

Modelica.Blocks.Sources.BooleanStep

block BooleanStep "Generate step signals of type Boolean"
        parameter SIunits.Time startTime[:]={0} "Time instants of steps";
        parameter Boolean startValue[size(startTime, 1)]=fill(false, size(startTime, 1)) "Output before startTime";
        extends Interfaces.BooleanSignalSource(final nout=size(startTime, 1));
equation
        for i in 1:nout loop
//   outPort.signal[i] = time >= startTime[i];
          outPort.signal[i] = if time >= startTime[i] then not startValue[i] else startValue[i];
        end for;
end BooleanStep;

Modelica.Electrical.Analog

Corrected table of values and default for Beta by dividing them by 1000 (consistent with the values used in the NAND-example model):

• Semiconductors.PMOS
• Semiconductors.NMOS

Corrected parameter defaults, unit and description for TrapezoidCurrent. This makes the parameters consistent with their use in the model. Models specifying parameter values are not changed. Models not specifying parameter values did not generate trapezoids previously.

Icon layer background changed from transparent to white:

• Basic.Gyrator
• Basic.EMF
• Ideal.Idle
• Ideal.Short

Basic.Transformer: Replaced invalid escape characters '\ ' and '\[newline]' in documentation by '|'.

Modelica.Mechanics.Rotational

Removed arrows and names documentation from flanges in diagram layer

Modelica.Mechanics.Rotational.Interfaces.FrictionBase

Modelica.Mechanics.Rotational.Position

Replaced reinit by initial equation

Modelica.Mechanics.Rotational.RelativeStates

Bug corrected by using modifier stateSelect = StateSelect.prefer as implementation

Modelica.Mechanics.Translational.Interfaces.flange_b

Attribute fillColor=7 added to Rectangle on Icon layer, i.e., it is now filled with white and not transparent any more.

Modelica.Mechanics.Translational.Position

Replaced reinit by initial equation

Modelica.Mechanics.Translational.RelativeStates

Bug corrected by using modifier stateSelect = StateSelect.prefer as implementation

Modelica.Mechanics.Translational.Stop

Use stateSelect = StateSelect.prefer.

Modelica.Mechanics.Translational.Examples.PreLoad

Improved documentation and coordinate system used for example.

ModelicaAdditions.Blocks.Nonlinear.PadeDelay

Replaced reinit by initial equation

ModelicaAdditions.HeatFlow1D.Interfaces

Definition of connectors Surface_a and Surface_b:
flow SIunits.HeatFlux q; changed to flow SIunits.HeatFlowRate q;

MultiBody.Parts.InertialSystem

Icon corrected.