private static IVectorView[] SolveModelsWithNewmark(Model[] models, IModelReader[] modelReaders)
{
Vector[] initialValues = new Vector[models.Length];
var value0 = new Dictionary <int, double[]>();
for (int i = 0; i < models.Length; i++)
{
double[] v0 = new double[models[i].Nodes.Count];
value0.Add(i, v0);
}
foreach (Node node in models[0].Nodes)
{
value0[0][node.ID] = 1;
}
DenseMatrixSolver[] solvers = new DenseMatrixSolver[models.Length];
IConvectionDiffusionIntegrationProvider[] providers = new IConvectionDiffusionIntegrationProvider[models.Length];
IChildAnalyzer[] childAnalyzers = new IChildAnalyzer[models.Length];
for (int i = 0; i < models.Length; i++)
{
initialValues[i] = Vector.CreateFromArray(value0[i]);
//var builder = new DenseMatrixSolver.Builder();
builder.IsMatrixPositiveDefinite = false;
solvers[i] = builder.BuildSolver(models[i]);
providers[i] = new ProblemConvectionDiffusion2(models[i], solvers[i]);
childAnalyzers[i] = new LinearAnalyzer(models[i], solvers[i], providers[i]);
}
const double timestep = .1;
const double time = 3;
var parentAnalyzer = new ConvectionDiffusionImplicitDynamicAnalyzerMultiModel(UpdateModels, models, solvers,
providers, childAnalyzers, timestep, time, initialTemperature: initialValues);
parentAnalyzer.Initialize();
var structuralModel = CreateStructuralModel(3e4, 0, new DynamicMaterial(.001, 0, 0, true), 0, new double[] { 1000, 0, 0 }, 1).Item1; // new Model();
var structuralSolver = structuralBuilder.BuildSolver(structuralModel);
var structuralProvider = new ProblemStructural(structuralModel, structuralSolver);
//var structuralChildAnalyzer = new LinearAnalyzer(structuralModel, structuralSolver, structuralProvider);
var increments = 2;
var structuralChildAnalyzerBuilder = new LoadControlAnalyzer.Builder(structuralModel, structuralSolver, structuralProvider, increments);
structuralChildAnalyzerBuilder.ResidualTolerance = 1E-6;
structuralChildAnalyzerBuilder.MaxIterationsPerIncrement = 50;
structuralChildAnalyzerBuilder.NumIterationsForMatrixRebuild = 1;
//childAnalyzerBuilder.SubdomainUpdaters = new[] { new NonLinearSubdomainUpdater(model.SubdomainsDictionary[subdomainID]) }; // This is the default
LoadControlAnalyzer structuralChildAnalyzer = structuralChildAnalyzerBuilder.Build();
var structuralParentAnalyzer = new NewmarkDynamicAnalyzer(UpdateNewmarkModel, structuralModel, structuralSolver,
structuralProvider, structuralChildAnalyzer, timestep, time, 0.25, .5);
structuralParentAnalyzer.Initialize();
for (int i = 0; i < time / timestep; i++)
{
parentAnalyzer.SolveTimestep(i);
structuralParentAnalyzer.SolveTimestep(i);
}
return(solvers.Select(x => x.LinearSystems[subdomainID].Solution).ToArray());
}
private static IVectorView SolveModel(Model model, IModelReader modelReader)
{
var builder = new SkylineSolver.Builder();
//builder.IsMatrixPositiveDefinite = false;
var solver = builder.BuildSolver(model);
const double timestep = 1;
const double time = 100;
var provider = new ProblemStructural(model, solver);
var increments = 2;
var childAnalyzerBuilder = new LoadControlAnalyzer.Builder(model, solver, provider, increments);
childAnalyzerBuilder.ResidualTolerance = 1E-6;
childAnalyzerBuilder.MaxIterationsPerIncrement = 50;
childAnalyzerBuilder.NumIterationsForMatrixRebuild = 1;
LoadControlAnalyzer childAnalyzer = childAnalyzerBuilder.Build();
//var parentAnalyzerBuilder = new NewmarkDynamicAnalyzer.Builder(model, solver, provider, childAnalyzer, timestep, time);
//parentAnalyzerBuilder.SetNewmarkParametersForConstantAcceleration();
//NewmarkDynamicAnalyzer parentAnalyzer = parentAnalyzerBuilder.Build();
var parentAnalyzer = new NewmarkDynamicAnalyzer(UpdateNewmarkModel, model, solver,
provider, childAnalyzer, timestep, time, .25, .5);
parentAnalyzer.Initialize();
for (int i = 0; i < time / timestep; i++)
{
//lambdag = .01 * i + 1;
parentAnalyzer.SolveTimestep(i);
}
return(solver.LinearSystems[subdomainID].Solution);
}