ModelSettings

Setting important global variables within a model

Information

This information is part of the Business Simulation Library (BSL). Please support this work and ► donate.

This class should be placed in the top level scope of any simulation model. It will automatically be assigned the prefix inner as it provides global parameters for the model.

Parameters (6)

modelTimeHorizon	Value: 10 Type: Time (s) Description: The time horizon for the model (i.e., stopTime - startTime)
modelStartTime	Value: Type: Time (s) Description: Start time of the model (will be automatically determined)
modelStopTime	Value: Type: Time (s) Description: Stop time of the model (will be determined from startTime and modelTimeHorizon)
dt	Value: 0.25 Type: Time (s) Description: Smallest possible interval of time for compatibility with conventional fixed-step system dynamics models
samplingPeriod	Value: dt / 4 Type: Time (s) Description: Default sampling period for discrete model components (should be ≤ dt/4)
init	Value: BusinessSimulation.Types.InitializationOptions.FixedValue Type: InitializationOptions Description: Provide InitializationOptions (Free, FixedValue, SteadyState) as global default

Used in Examples (13)

	SimpleProductionChain BusinessSimulation.Examples A first example
	SimpleProductionChainII BusinessSimulation.Examples Extending the first example to include replacement purchases
	SimpleProductionChainIII BusinessSimulation.Examples Further extending the first example to explain new product diffusion
	SIR BusinessSimulation.Examples Classical epidemic model by Kermack and McKendrick
	LoveHateDynamics BusinessSimulation.Examples Romeo and Juliet model as introduced by Strogatz
	LotkaVolterraSystems BusinessSimulation.Examples Predator-prey dynamics
	LotkaVolterraEquationsRevisited BusinessSimulation.Examples Predator-prey dynamics with an additional predator
	ManagingEmployment BusinessSimulation.Examples Human resource planning
	AssemblyLine BusinessSimulation.Examples Modeling a production process
	LookupFunctions BusinessSimulation.Examples Showcase of lookup-functions
	HealTheWorld BusinessSimulation.Examples Causal loop model of world dynamics
	SoftwareReleaseProject BusinessSimulation.Examples Causal loop example given by van Zijderveld (MARVEL)
	DelayInformation BusinessSimulation.Converters.DiscreteDelay Pipeline information delay with awareness

Used in Components (42)

	InputControl BusinessSimulation.CausalLoop Directly set information using a ramp input profile
	SimpleControl BusinessSimulation.CausalLoop Directly influencing a stock to keep it at setpoint value
	PID_Control BusinessSimulation.CausalLoop Directly influencing a stock to keep it at setpoint value
	ElasticityDelayed BusinessSimulation.CausalLoop Process driven by elasticity and additional exponential delay
	ProportionalityDelayed BusinessSimulation.CausalLoop Process driven by proportionality with additional exponential delay
	ForceToInputValue BusinessSimulation.CausalLoop Flow is obtained as closing the gap to input value
	ForceToStockValue BusinessSimulation.CausalLoop Flow is obtained as closing the gap to input stock value
	ExponentialDelay BusinessSimulation.CausalLoop Exponential delay of input flow
	PipelineDelay BusinessSimulation.CausalLoop Fixed or pure delay of input flow
	Lookup_TableOnFile BusinessSimulation.CausalLoop Table-based lookup given on file
	DelayN BusinessSimulation.Stocks Material delay of n-th Order
	SimpleConveyor BusinessSimulation.Stocks Conveyor (aka pipeline delay) with constant delay time and no leakage
	Conveyor BusinessSimulation.Stocks Conveyor delay (aka pipeline ~) with variable delay time
	PureDelay BusinessSimulation.Stocks Delay the flow of material for a fixed (but variable) delay time
	Oven BusinessSimulation.Stocks Batch processing of inflow (aka batch delay)
	DelayFixed BusinessSimulation.Converters.DiscreteDelay Pipeline information delay without awareness
	Sampler BusinessSimulation.Converters.DiscreteDelay Ideal periodic sampler of input
	SampleIfTrue BusinessSimulation.Converters.DiscreteDelay Samples input, if Boolean trigger is true
	Smooth BusinessSimulation.Converters.DiscreteDelay First-order exponential smooth
	SmoothN BusinessSimulation.Converters.DiscreteDelay N-th order exponential smooth with constant averaging time
	AsymmetricSmooth BusinessSimulation.Converters.DiscreteDelay A smooth with different delay times for positive and negative changes
	AsymmetricSmoothN BusinessSimulation.Converters.DiscreteDelay Higher order smooth with different delay times for positive and negative changes
	TableFunction BusinessSimulation.Converters.Lookup Table function defined by external data on file using Modelica's CombiTable format
	TableFunctionVector BusinessSimulation.Converters.Lookup Table function for vector input and output using Modelica's CombiTable format
	ClipProcessTime BusinessSimulation.Converters Limit any time input to be no smaller than dt
	GameInput BusinessSimulation.Converters Enable user input, if gaming mode is activated
	RateConversion BusinessSimulation.Converters Converts a rate given per time base A to a rate per time base B
	TimeConversion BusinessSimulation.Converters Converts a time signal from time base A to time base B
	ExogenousData BusinessSimulation.InformationSources Reading external data from a file using Modelica's CombiTimeTable format (MCTT)
	TimeInput BusinessSimulation.InformationSources Clock to provide time-signal
	TimeInputConverted BusinessSimulation.InformationSources Clock to provide time-signal in a different time base
	Trend BusinessSimulation.MoleculesOfStructure.InformationProcessing Calculating a fractional rate of change to be used in forecasting
	CloseGap BusinessSimulation.MoleculesOfStructure.Policy Determine the rate of flow (action) to close a gap between a quantity and its desired value
	FirstOrderStockAdjustment BusinessSimulation.MoleculesOfStructure.Policy Maintain a stock at a desired level
	EffectOfFatigue BusinessSimulation.MoleculesOfStructure.Blocks Modeling the influence of excessive workloads on productivity or quality
	ExperienceCurve BusinessSimulation.MoleculesOfStructure.Blocks Unit cost degression due to gaining experience
	Account BusinessSimulation.MoleculesOfStructure.Incubators Basic model of an account with optional interest
	Collector BusinessSimulation.MoleculesOfStructure.Incubators A reservoir that aggregates multiple stock ports
	Reservoir BusinessSimulation.MoleculesOfStructure.Transceivers A single stock drained by an outflow at a given rate
	SISO_Conversion BusinessSimulation.Interfaces.PartialConverters Partial SISO converter class with input and output conversions for lookup functions
	BasicStock BusinessSimulation.Interfaces.PartialStocks Unrestricted reservoir to store information
	TimedSource BusinessSimulation.Interfaces.PartialCLD Partial class for flow port with timing

Revisions

Structural parameters, e.g., modelDisplayTimeBase, changed to constant variability in v2.0.0.

Added Evaluate = true to dt to make this a structrual parameter in v2.1.0.