## The ENPORT Quickguide |

### From inside the book

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Page 3

(5) Choose the initial conditions, simulation time limits, and solve for the time

response of the system. You may linearize the system equations and examine

the eigenvalues and eigenvectors. (6) Display the results in graphical or tabular

form for evaluation. (7) Save the model for later reference. You may append the

time

by re-entering the flow at the desired point. Control in ENPORT is organized with

this ...

(5) Choose the initial conditions, simulation time limits, and solve for the time

response of the system. You may linearize the system equations and examine

the eigenvalues and eigenvectors. (6) Display the results in graphical or tabular

form for evaluation. (7) Save the model for later reference. You may append the

time

**response data**to the model file. Any part of this procedure may be repeatedby re-entering the flow at the desired point. Control in ENPORT is organized with

this ...

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Solving for time

conditions; (2) linearize the system equations and examine the associated

eigenvalues and eigenvectors; (3) set the initial and final times for the solution;

and (4) select an integration method and generate the time

Linearization permits you to examine the linearized system at the initial state. The

linearized system

x(t) + D*u(t), where x is ...

Solving for time

**response**From the Solution menu you may (1) set the initialconditions; (2) linearize the system equations and examine the associated

eigenvalues and eigenvectors; (3) set the initial and final times for the solution;

and (4) select an integration method and generate the time

**response**.Linearization permits you to examine the linearized system at the initial state. The

linearized system

**data**is presented in the form dx/dt = A*x(t) + B*u(t) and y(t) = C*x(t) + D*u(t), where x is ...

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Display and evaluation of results The Post-processor allows you to access the

time

available on several types of graphics terminals. Low-resolution plots ('printer'

plots) are available on every terminal. Dialog guides you in entering the

necessary information for using these options. The variables available for display

are the effort and flow on every bond (E.bondname, F.bondname), general

momentum ...

Display and evaluation of results The Post-processor allows you to access the

time

**response data**in both tabular and graphical form. High-resolution plots areavailable on several types of graphics terminals. Low-resolution plots ('printer'

plots) are available on every terminal. Dialog guides you in entering the

necessary information for using these options. The variables available for display

are the effort and flow on every bond (E.bondname, F.bondname), general

momentum ...

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### Common terms and phrases

1-junction Allows angular velocity associated block diagram nodes bond graph node current model cursor default diagram and bond dialog display E7PDIR.ENP eigenvalues eigenvectors ENPORT model directory ENPORT provides ENPORT QuickGuide ENPORT Reference ENTER key existing model format FORTRAN function 1 output GAIN graph and block graphical mode grid initial conditions input variables input vector integrator keyboard mode Linear interpolation linearize the system MATRIX MOD.TF model file model for later motor node and connector node or connector O.OOOOE+OO O.OOOOE+OO O.OOOOE+OO operating system output list output variables ports power bonds radar pedestal unit Real numbers Reference Manual response data sample model set the initial shaft and gears signal specify the equations SUMFB system equations System Graph Editor system model TABLE2 terminal TF and GY TF or GY THETA title and description Title option menu torque Transfer function Utilities options XI Yl X2 Y_list