ValueType::unit

The Webel Units` library with short-cut variables for frequently used Units and their String identifiers

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Tutorial

[TECHNICAL SLIDE TRAIL] The Webel libraries for Wolfram Mathematica: With SysMLv1 models.

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SECTION: A brief look at the Webel W`Base` utilities for Mathematica

Webel: SysML4Mathematica: Cameo Systems Modeler: Can perform calculations with a custom Quantity ValueType (for Mathematica) directly, but DOES NOT perform units-aware algebra (no automatic conversions)

Focus BDD for the CAY16-102J4LF resistor array

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Tutorial

TRAIL: A SysMLv1.6+ model of the Arduino Mega2560Rev3 microcontroller board

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1: A Webel recipe for modelling microcontrollers in SysML

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SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

Focus BDD with embedded IBD and electrical schematic: for Group_AREF with a single capacitor

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Tutorial

TRAIL: A SysMLv1.6+ model of the Arduino Mega2560Rev3 microcontroller board

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1: A Webel recipe for modelling microcontrollers in SysML

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electrical circuit diagram

electrical schematic

SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

Package overview diagram for a basic two pin Capacitor

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Tutorial

TRAIL: A SysMLv1.6+ model of the Arduino Mega2560Rev3 microcontroller board

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1: A Webel recipe for modelling microcontrollers in SysML

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SysML Package Diagram

MagicDraw/Cameo v19SP3: The display of units can't be disabled on the initialValues compartment for context-specific values, which can lead to inconsistencies when an OpaqueExpression that references value property names is used.

ThirdSpeciesWolf

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

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07. Components [MOST]

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SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

FoxRabbitWithInit

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

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07. Components [MOST]

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SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

Interaction - Predation

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

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07. Components [MOST]

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SysML Block Definition Diagram (BDD)

SysML Parametric Diagram

SinkOrSource - Reproduction - Starvation

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

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07. Components [MOST]

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SysML Block Definition Diagram (BDD)

SysML Parametric Diagram

Lotka-Volterra Equations Revisited - RegionalPopulation

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

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07. Components [MOST]

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SysML Block Definition Diagram (BDD)

Lotka-Volterra Equations Revisited - FlowingSpecies

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

07. Components [MOST]

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SysML Block Definition Diagram (BDD)

UngroundedGearComparison - comparison

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

07. Components [MOST]

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SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

SysML Parametric Diagram

GroundedGear - comparison

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

07. Components [MOST]

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SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

SysML Parametric Diagram

SMD_WithBacklash

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

07. Components [MOST]

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SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

SysML Parametric Diagram

SMD

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

07. Components [MOST]

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SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

Compliant - RotationalInertia - Spring - Damper - Ground

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

07. Components [MOST]

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SysML Block Definition Diagram (BDD)

Basic Rotational Components - TwoFlange

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

07. Components [MOST]

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SysML Block Definition Diagram (BDD)

TwoPin - SwitchedRLC

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

07. Components [MOST]

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SysML Block Definition Diagram (BDD)

Resistor - Capacitor - Inductor - StepVoltage - Ground

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

07. Components [MOST]

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SysML Block Definition Diagram (BDD)

Fluid Connectors - ThermoFluid

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

Slide kind

SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

Fluid Connectors - Compressible

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

Slide kind

SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

Fluid Connectors - Incompressible

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

Slide kind

SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

SimpleDomains - Thermal

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

Slide kind

SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

SimpleDomains - Rotational

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

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SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

SimpleDomains - Translational

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

Slide kind

SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

SimpleDomains - Electrical

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Tutorial

TRAIL: SysML+SysPhS vs Modelica By Example in MagicDraw/Cameo SysML [tested with the Wolfram SystemsModeler for Modelica]

Section

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SysML Block Definition Diagram (BDD)

SysML Internal Block Diagram (IBD)

SysPhSLibrary and ISO-80000 ModelLibrary: Some ValueType names and Unit symbols are not Modelica-friendly

Additional Dependency relationships between ValueTypes and their Units on some SysML diagrams on this site are for educational illustration only (you don't need them in your own SysML models).

Overview of ValueTypes and Units

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Tutorial

TRAIL: SysML: Simple model of an air conditioner with a refrigerant cycle and StateMachine driven by Activities in MagicDraw/Cameo

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SysML Package Diagram

Webel vs SysPhS-1.1: Annex A.5: Humidifier: Where ValueTypes involving litre are defined, the Unit symbol "L" is used rather than the Modelica-preferred "l" (in combination with an explicit additional unit converter).

Webel vs SysPhS-1.1: Annex A.5: Humidifier: The water temperature from TemperatureIncreaseConstraint and HeatingCalculationConstraint starts at 0 °C (should probably be the environment temperature 20 °C). Needs an additional parameter and initial value.

Webel vs SysPhS-1.1: Annex A.5: Humidifier: Where custom ValueTypes are defined, Modelica-friendly Unit symbols are used. Examples: "m3" not "m^3"; "degC" not "°C"; "J/(K.L)" (full stop as multiplier) not "J/(K⋅L)"; (EXCEPT "L" for litre not "l").

Webel vs SysPhS-1.1: Annex A.5: Humidifier: It is assumed that "vapor" is a volume rate corresponding to the rate of consumption OF HEATED LIQUID WATER (from a tank) used to create the vapor.

REFERENCE: A.5 Humidifier: Webel: ValueTypes and Units

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Tutorial

TRAIL: SysPhS-1.1 Annex A examples in MagicDraw/Cameo SysML vs Modelica (Wolfram SystemsModeler)

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Annex A.5: Humidifier (with Units)

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SysML Package Diagram

This value type has no unit, reflecting that the signals are not measurements of physical quantities and do not follow conservation laws.

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Annex A.5: Humidifier (with Units)

TRAIL: SysPhS-1.1 Annex A examples in MagicDraw/Cameo SysML vs Modelica (Wolfram SystemsModeler)

Slides in this section

If you want to navigate the entire section including the additional explanatory text click on the title link of the first slide to view the full slide page, then use the next links to move through the slide pages. If you just want to view the slide images only in sequence, click on any slide to view it larger in a viewer, then click again to move through each slide in this tutorial trail section.

Figure 64: Total humidifier system example (MOCKUP)

Figure 65: Internal structure of the total humidifier system - black box vs details

REFERENCE: A.5 Humidifier: Webel: ValueTypes and Units

REFERENCE: A.5 Humidifier: Webel: Block overview

BDD & IBD: HumidifierSystem

BDD & IBD: HumidifiedRoom

BDD & PD: VolumeConversion

BDD & PD: SaturationVaporPressure

BDD & IBD: RelativeHumidity

BDD & PD: RelativeHumidityCalculation

BDD & PD: HumidityBalance

BDD & PD: VaporPressureCalculation

BDD & PD: PercentageConversion

BDD & IBD: Humidifier

BDD & PD: WaterTank

BDD & STM: UsageScenario

BDD & STM: Control

BDD & STM: HeaterControl

BDD & IBD: VaporGenerationPlant

BDD & PD: Radiation

BDD & PD: VaporGenerationPlantCalculation

BDD & IBD: Heating

BDD & PD: TemperatureIncrease

BDD & PD: HeatingCalculation

BDD & IBD: Evaporation

BDD & PD: EvaporationCalculation

BDD & PD: EvaporationCalculation2

Export to Modelica and execution of the SysML/SysPhS block HumidifierSystem_S1

A.5 Humidifier: Scenario block overview BDDs: 96 to 102

A.5 Humidifier: Value property defaults table

MDSysML/Cameo 19SP3: The SysPhS versions of Conductance, Frequency, siemens, and hertz, are not explicitly provided in the MagicDraw/Cameo model library

SysML: HOWTO Use an explicit converter between different Unit systems

SysML: HOWTO Safely incorporate ConstraintBlock equations from a library into a project with local ValueType variants: CASE: SysPhS vs ISO-80000 ModelLibrary

Figure 28 shows how a value type with units is defined in SysML, from the units library in Figure 20 [ERROR], Subclause 11.2.2 [ERROR]. It has a value type Force that specializes the Real value type and has newton as unit. The newton unit has a symbol N.

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SysML numeric value types can be linked to units, where units are modeled with the SysML Unit block. These units are linked to value types that are generalized by SysML’s numeric value types. Units and their symbols are from ISO 80000.

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Figure 28: Units in SysML

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Tutorial

TRAIL: SysPhS-1.1 specification body figures in MagicDraw/Cameo SysML vs Modelica [using Wolfram SystemsModeler]

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SysML Block Definition Diagram (BDD)

Figure 26: Constraint block for physical interaction in SysML

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Tutorial

TRAIL: SysPhS-1.1 specification body figures in MagicDraw/Cameo SysML vs Modelica [using Wolfram SystemsModeler]

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SysML Block Definition Diagram (BDD)

SysML Parametric Diagram

The objective is the optical element that gathers light from the object being observed and focuses the light rays

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Tutorial

TRAIL: Webel SysML Parsing Analysis example: Optical telescopes from Wikipedia: Structure and port-based light flow model

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SysML Block Definition Diagram (BDD)

Radio frequencies (just a quick look)

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Tutorial

TRAIL: Webel SysML Parsing Analysis example: Optical telescopes from Wikipedia: Structure and port-based light flow model

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SysML Block Definition Diagram (BDD)

Optical radiation, visible, UV, and infrared

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Tutorial

TRAIL: Webel SysML Parsing Analysis example: Optical telescopes from Wikipedia: Structure and port-based light flow model

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SysML Block Definition Diagram (BDD)

Converting mass and charge using SysML Parametrics

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Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

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SysML Block Definition Diagram (BDD)

SysML Parametric Diagram

Mass and charge of electron and positron

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Tutorial

TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia

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SysML Block Definition Diagram (BDD)

REFERENCE CARD: Property cheat-sheet for Block

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Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

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08:01: The building Blocks of SysML

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SysML Block Definition Diagram (BDD)

MagicDraw/Cameo: The display option 'Show Value Type Units' does not seem to work on the Slots of an InstanceSpecification in a BDD

Table 8-1 - Graphical nodes defined in Block Definition diagrams - ValueType - MagicDraw SysML 19SP3

This content has been marked as discussing an ADVANCED topic!

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Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

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08:02: The SysML ValueType, Unit, and using values

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SysML Block Definition Diagram (BDD)

UML DataType vs SysMLv1 ValueType

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Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

08:02: The SysML ValueType, Unit, and using values

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UML Profile Diagram

SysML ValueType and QUDV overview

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Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

08:02: The SysML ValueType, Unit, and using values

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SysML Block Definition Diagram (BDD)

QUDV in SysML refers to: Quantity, Unit, Dimension, Value. It is strongly influenced by the International Vocabulary of Metrology (VIM).

REFERENCE CARD: Types of Block Properties and Block compartments

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Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

08:01: The building Blocks of SysML

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SysML Block Definition Diagram (BDD)

ExampleBlock in a Block Definition Diagram (BDD)

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Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

08:01: The building Blocks of SysML

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SysML Block Definition Diagram (BDD)

Figure 8-14: Defining Value Types with units of measure from the International System of Units (SI)

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Tutorial

TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]

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Section: SysML-1.6 specification diagrams: 08 Blocks

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SysML Package Diagram

Figure 8-4: Abstract syntax extensions for SysML value types

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Tutorial

TRAIL: The SysML-1.6 Hybrid SUV sample and specification diagrams in MagicDraw/Cameo (with annotations) [UNDERGOING UPDATE to SysML1.7]

Section

Section: SysML-1.6 specification diagrams: 08 Blocks

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UML Profile Diagram

unit : InstanceSpecification [0..1] A unit, represented by an InstanceSpecification classified by a kind of SysML Unit, in terms of which the magnitudes of other quantities that have the same quantity kind can be stated.

Source

OMG Systems Modeling Language (SysML) 1.6

A quantity kind is a kind of quantity that may be stated in terms of defined units, but does not restrict the selection of a unit to state the value. A unit is a particular value in terms of which a quantity of the same quantity kind may be expressed.

Source

OMG Systems Modeling Language (SysML) 1.6

Subscribe to ValueType::unit