Specifying Model Data Data in Component Data Tables Baseline data for model · Parameters Default parameter values Libraries use defaults when there is a sensible default Generic default value is 0.99999(recognizable, not zero, close to one) Tables 1 and 2 independent variable tables built in to many library components Blocks from GP library FU, FV, FWfor 1, 2, 3 independent variable tables TA and tb for 2 or 4 functions of time Fixed-grid option available to speed lookup Specifying table size Center click on " Table of x Var in CdT entry Use spinbar(山彐) or manually type table sizes 3 through 9 independent variable tables available See user' s manual for formats EAS102. December 2005 pyright@ 2005 MSC Software Corporation Chart 31
EAS102, December 2005 Copyright© 2005 MSC.Software Corporation Chart 31 • Baseline data for model • Parameters Default parameter values – Libraries use defaults when there is a sensible default – Generic default value is 0.99999 (recognizable, not zero, close to one) • Tables 1 and 2 independent variable tables built in to many library components Blocks from GP library: – FU, FV, FW for 1, 2, 3 independent variable tables – TA and TB for 2 or 4 functions of TIME Fixed-grid option available to speed lookup Specifying table size – Center click on “Table of x Var” in CDT entry – Use spinbar ( ) or manually type table sizes 3 through 9 independent variable tables available – See user’s manual for formats Specifying Model Data Data in Component Data Tables
Specifying Model Data State Information in Com ponent Data Table Information needed for each state: Initial conditions GP library default value of zero- often not a realistic value Library defaults may (depending on the units choice be more realistic · Error contro Error tolerance for variable step integration Perturbation size for linearization GP library default of 0.001 Application libraries(HC, vC, GD, etc. ) usually use tighter(smaller) defaults · Freeze Contro no-state behaves normally yes"-state holds initial condition(behaves like a constant input parameter · use to ignore some physical effect isolate part of the model for debugging allow state to be used as root locus parameter EAS102. December 2005 pyright@ 2005 MSC Software Corporation Chart 32
EAS102, December 2005 Copyright© 2005 MSC.Software Corporation Chart 32 Specifying Model Data State Information in Component Data Table Information needed for each state: • Initial conditions • GP library default value of zero - often not a realistic value • Error control • Error tolerance for variable step integration • Perturbation size for linearization • GP library default of 0.001 • Application libraries (HC, VC, GD, etc.) usually use tighter (smaller) defaults • Freeze Control • “no” – state behaves normally • “yes” – state holds initial condition (behaves like a constant input parameter) • use to – ignore some physical effect – isolate part of the model for debugging – allow state to be used as root locus parameter • Library defaults may (depending on the units choice) be more realistic
Project 2 Data For Air Flow Model (Page 1 of 19) Enter the following data into the component data tables of the AirFlow model: Component: AFP-Analytic Function\Generator: Hot AirlDisturbance AFP Inputs EASY5 User-Defined Value Description Na Units Library:(gp)-General Purpose(v7.0.0) Group: Function Generators COD AFP 6.0 Function specification code Timestamp: 02-12-14 21: 21 Configuration: Fixed C1 AFP -5. Coefficient 1 C2 AFP 5.0 Coefficient 2 C3 AFP Coefficient 3 C4 AFP 002 Coefficient 4 AFP 0 Coefficient 5 AFP Variables EASY5 User-Defined Name Size Description Units ame S_Out_AFP PressDist Signal output EAS102. December 2005 pyright@ 2005 MSC Software Corporation Chart 33
EAS102, December 2005 Copyright© 2005 MSC.Software Corporation Chart 33 Data For Air Flow Model (Page 1 of 19) Project 2 Enter the following data into the component data tables of the AirFlow model:
Project 2 Data For Air Flow Model (Page 2 of 19) Component: AFT-Analytic FunctioniGenerator: Cold Air Disturbance Library:(gp)-General Purpose (v7.0.0) roup: Function Generators Timestamp: 02-12-14 21: 21 Fixed AFT Inputs EASY5 User-Defined Nam Name value Description Units COD AFT 6.0 Function specification code C1 AFT -50. Coefficient 1 C2 AFT 50cOefficient 2 C3 AFT Coefficient 3 C4 AFT Coefficient 4 C5 AFT 20 Coefficient 5 AFT Variables. EASY5 User-Defined Name Name Size Description Units S_Out_AFT TempDist Signal output EAS102. December 2005 pyright@ 2005 MSC Software Corporation Chart 34
EAS102, December 2005 Copyright© 2005 MSC.Software Corporation Chart 34 Data For Air Flow Model (Page 2 of 19) Project 2
Project 2 Data For Air Flow Model (Page 3 of 19) Component: GP-Gas Properties Library: (gd)-Gas Dynamics (/3.0.1) roup: Miscellaneous Fiesta:0210-171557 Confiquration: Fixed GP Inputs: EASY5User-Defined Name Units UN GP 1.0 Units Flag(0: Metric, 1: English) PRF GP (1: ld, 2: Built-in Lee-Kestler, 3: User-defined) ICC GP 0 Override Orifice Switch State ICs Flag (0:no, 1: yes) VX GP Disable moisture phase change by freezing all MC, SwC states if =0 GAS GP 1.0Gas Species List TAM GP 70.0 Ambient Temperature deg C (deg F) 15.aMbient Pressure REF GP 1.0 Reference density for sigma'dp kg/m3 (Ibm/f3) EAS102. December 2005 pyright@ 2005 MSC Software Corporation Chart 35
EAS102, December 2005 Copyright© 2005 MSC.Software Corporation Chart 35 Data For Air Flow Model (Page 3 of 19) Project 2