modelInitializeFlange

Initializes a flange with pre-defined position, speed and acceleration (usually, this is reference data from a control bus)

Extends from Modelica.Blocks.Icons.Block (Basic graphical layout of input/output block).

Information

This component is used to optionally initialize the position, speed, and/or acceleration of the flange to which this component is connected. Via parameters use_s_start, use_v_start, use_a_start the corresponding input signals s_start, v_start, a_start are conditionally activated. If an input is activated, the corresponding flange property is initialized with the input value at start time.

For example, if "use_s_start = true", then flange.s is initialized with the value of the input signal "s_start" at the start time.

Additionally, it is optionally possible to define the "StateSelect" attribute of the flange position and the flange speed via parameter "stateSelection".

This component is especially useful when the initial values of a flange shall be set according to reference signals of a controller that are provided via a signal bus.

Parameters

TypeNameDefaultDescription
Booleanuse_s_starttrue= true, if initial position is defined by input s_start, otherwise not initialized
Booleanuse_v_starttrue= true, if initial speed is defined by input v_start, otherwise not initialized
Booleanuse_a_starttrue= true, if initial acceleration is defined by input a_start, otherwise not initialized
StateSelectstateSelectStateSelect.defaultPriority to use flange angle and speed as states

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInputs_startInitial position of flange
Modelica.Blocks.Interfaces.RealInputv_startInitial speed of flange
Modelica.Blocks.Interfaces.RealInputa_startInitial angular acceleration of flange
Interfaces.Flange_bflangeFlange that is initialized

Components

TypeNameDefaultDescription
SI.Positions_flangeflange.sFlange position
SI.Velocityv_flangeder(s_flange)= der(s_flange)

Contents

NameDescription
Set_s_startprotectedSet s_start
Set_v_startprotectedSet v_start
Set_a_startprotectedSet a_start
Set_flange_fprotectedSet flange_f to zero