Creating global parameters

API creating global parameters

Global parameters are created using the function AMEAddGlobalParameter. You should consult the documentation for this function by typing help (‘AMEAddGlobalParameter’) AMEAddGlobalParameter

API AMEAddGlobalParameter .

We will create the following Global parameters:

Name	Title	Value	Unit
MASS	mass of piston	0.5	kg
BORE	bore of piston	60	mm
R	radius of crank	30	mm
ANG	initial angular position of crank	30	degree
OFF	difference in piston angles	180	degree
L	length of connecting rod	40	mm

We suggest you set meaningful default, minimum and maximum values for your Global parameters, according to usage type.

Add the code to your script:

# Set Global parameter values

AMEAddGlobalParameter('MASS', 'mass of piston', 'ame_real_parameter', '0.5', '0.1', '0.5', '2', 'kg')

AMEAddGlobalParameter('BORE', 'bore of piston', 'ame_real_parameter', '60', '20', '60', '100', 'mm')

AMEAddGlobalParameter('R', 'radius of crank', 'ame_real_parameter', '30', '10', '30', '50', 'mm')

AMEAddGlobalParameter('ANG', 'initial angular position of piston 1', 'ame_real_parameter', '0', '0', '0', '360', 'degree')

AMEAddGlobalParameter('OFF', 'difference in piston angles', 'ame_real_parameter', '180', '0', '0', '360', 'degree')

AMEAddGlobalParameter('L', 'length of connecting rod', 'ame_real_parameter', '40', '25', '40', '110', 'mm')

Launch your script and then open the circuit in Simcenter Amesim. Switch to Parameter mode and check the parameter values and Global parameter values you created:

Figure 16: Global Parameters set for a component

You will observe that MASS now appears in black as the global parameter now exists.

Figure 17: Global Parameters