Example Usage

I generally prefer to use import rather than using so that I know where various functions come from.

import Aswing

Reading and Loading Configuration Files

There are various ways you can load configuration data. The easiest option is to read from a .asw file.

asw = Aswing.readasw("hawk.asw")

The other option is to construct a Configuration composite type manually. This is the more useful approach if you want to automate ASWING runs for varying configurations.

Inputing this data to ASWING once you have loaded it is straightforward.

Aswing.setgeom(asw)

Reading and Loading Operating Point Files

You can also read operating point data from a file.

pnt = Aswing.readpnt("hawk.pnt")

Or you can construct an OperatingPoint composite type manually.

Then you can the load the operating point into ASWING using the following function.

Aswing.setpnt(pnt)

Saving Configuration and Operating Point Files

At any point in time you may save configuration and operating point files for analysis with an unmodified version of ASWING.

Aswing.aswsav("out.asw")
Aswing.pntsav("out.pnt")

Quasi-Steady Solutions

You can find quasi-steady solutions for any number of operating points using the following command.

steady_solution = Aswing.solvesteady(1)

Stability Derivatives

You can also get stability derivatives for that operating point

stabderivs = Aswing.getstabilityderivatives(1)

Static Margin

Quasi-steady and rigid static margins can be calculated, but the geometry and operating point conditions will need to be re-input afterwards

sm_qs, sm_rigid, fail = Aswing.getstaticmargin(1)

Aswing.setgeom(asw)
Aswing.setpnt(pnt)
steady_solution = Aswing.solvesteady(1)

Paneling

The paneling between break points may be obtained and/or modified

newintervals = [Aswing.getintervals(i) for i  in 1:4]*2
Aswing.nodeset(newintervals)
steady_solution = Aswing.solvesteady(1)

Note that when you input the geometry again the paneling is reset to the defaults

Aswing.setgeom(asw)
Aswing.setpnt(pnt)

intervals = [Aswing.getintervals(i) for i  in 1:4]

Time Domain Solutions

You can also do unsteady solves. We'll start ours from a steady state solution.

steady_solution = Aswing.solvesteady(1)

We'll also set all parameters to the values from this steady state solution and set the constraint set to "free"

Aswing.retainparam(1)
Aswing.setcons(Aswing.Constraints("free"))

Of course, this won't be a very exciting time domain simulation because steady state operating conditions will be maintained.

unsteady_solution = Aswing.solveunsteady(0.1, 10)

Frequency Domain Analysis

You can also get eigenvalues.

asweigs = Aswing.geteigs(16, -0.1+0.0im, 1)

Accessing Internal Aswing Variables

If you need to access internal ASWING variables you can access them via the global composite types ASWING, EIGEN, and UNITS which wrap the Fortran global variables contained in the respective files.