private NewmarkDynamicAnalyzer(IStructuralModel model, ISolver solver, IImplicitIntegrationProvider provider,
IChildAnalyzer childAnalyzer, double timeStep, double totalTime, double alpha, double delta)
{
this.model = model;
this.linearSystems = solver.LinearSystems;
this.solver = solver;
this.provider = provider;
this.ChildAnalyzer = childAnalyzer;
this.beta = alpha;
this.gamma = delta;
this.timeStep = timeStep;
this.totalTime = totalTime;
this.ChildAnalyzer.ParentAnalyzer = this;
// Initialize coefficients. It would make sense for them to be initialized in a different function, if they could
// change during the analysis
a0 = 1 / (alpha * timeStep * timeStep);
a1 = delta / (alpha * timeStep);
a2 = 1 / (alpha * timeStep);
a3 = 1 / (2 * alpha) - 1;
a4 = delta / alpha - 1;
a5 = timeStep * 0.5 * (delta / alpha - 2);
a6 = timeStep * (1 - delta);
a7 = delta * timeStep;
}
public void SolveTimestep(int i)
{
Debug.WriteLine("Newmark step: {0}", i);
if (CreateNewModel != null)
{
CreateNewModel(uu, uc, v, modelsForReplacement, solversForReplacement, providersForReplacement, childAnalyzersForReplacement);
model = modelsForReplacement[0];
solver = solversForReplacement[0];
linearSystems = solver.LinearSystems;
provider = providersForReplacement[0];
ChildAnalyzer = childAnalyzersForReplacement[0];
ChildAnalyzer.ParentAnalyzer = this;
InitializeInternal(true);
}
IDictionary <int, IVector> rhsVectors = provider.GetRhsFromHistoryLoad(i);
foreach (var l in linearSystems.Values)
{
l.RhsVector = rhsVectors[l.Subdomain.ID];
}
InitializeRhs();
CalculateRhsImplicit();
DateTime start = DateTime.Now;
ChildAnalyzer.Solve();
DateTime end = DateTime.Now;
UpdateVelocityAndAcceleration(i);
UpdateResultStorages(start, end);
// Print output results in *.txt file
string path0 = Path.Combine(Directory.GetCurrentDirectory(), "MsolveOutput");
var path2 = Path.Combine(path0, $"MSolveHyperelasticDynamicsImplicitResults.txt");
using (var fileName = new StreamWriter(path2, true))
{
double currentTime = ((i + 1) * timeStep);
string strTimeStep = currentTime.ToString();
var totalSolution = ChildAnalyzer.Responses[0][1];
string strTotalSolution = totalSolution.ToString();
fileName.WriteLine(strTimeStep + ", " + strTotalSolution);
}
//if (CreateNewModel != null)
//{
// CreateNewModel(uu, uc, v, modelsForReplacement, solversForReplacement, providersForReplacement, childAnalyzersForReplacement);
// model = modelsForReplacement[0];
// solver = solversForReplacement[0];
// linearSystems = solver.LinearSystems;
// provider = providersForReplacement[0];
// ChildAnalyzer = childAnalyzersForReplacement[0];
// ChildAnalyzer.ParentAnalyzer = this;
// InitializeInternal(true);
//}
}
private double beta = 0.25, gamma = 0.5; // constant acceleration is the default
public Builder(IStructuralModel model, ISolver solver, IImplicitIntegrationProvider provider,
IChildAnalyzer childAnalyzer, double timeStep, double totalTime)
{
this.model = model;
this.solver = solver;
this.provider = provider;
this.childAnalyzer = childAnalyzer;
this.timeStep = timeStep;
this.totalTime = totalTime;
}
public NewmarkDynamicAnalyzer(IImplicitIntegrationProvider provider, IAnalyzer embeddedAnalyzer, IDictionary <int, ISolverSubdomain> subdomains,
double alpha, double delta, double timeStep, double totalTime)
{
this.provider = provider;
this.childAnalyzer = embeddedAnalyzer;
this.subdomains = subdomains;
this.alpha = alpha;
this.delta = delta;
this.timeStep = timeStep;
this.totalTime = totalTime;
this.childAnalyzer.ParentAnalyzer = this;
}
/// <summary>
/// Creates an instance that uses a specific problem type and an appropriate child analyzer for the construction of the system of equations arising from the actual physical problem
/// </summary>
/// <param name="model">Instance of the model to be solved</param>
/// <param name="solver">Instance of the solver that will handle the solution of the system of equations</param>
/// <param name="provider">Instance of the problem type to be solver</param>
/// <param name="childAnalyzer">Instance of the child analyzer that will handle the solution of the system of equations</param>
/// <param name="beta">Instance of parameter "beta" of the method that will be initialized</param>
/// <param name="timeStep">Instance of the time step of the method that will be initialized</param>
/// <param name="totalTime">Instance of the total time of the method that will be initialized</param>
public ThermalDynamicAnalyzer(IModel model, ISolver solver, IImplicitIntegrationProvider provider,
IChildAnalyzer childAnalyzer, double beta, double timeStep, double totalTime)
{
this.model = model;
this.linearSystems = solver.LinearSystems;
this.solver = solver;
this.provider = provider;
this.ChildAnalyzer = childAnalyzer;
this.beta = beta;
this.timeStep = timeStep;
this.totalTime = totalTime;
this.ChildAnalyzer.ParentAnalyzer = this;
}
public ODEDynamicAnalyzer(IStructuralModel model, ISolver solver, IImplicitIntegrationProvider provider,
IChildAnalyzer childAnalyzer, double beta, double timeStep, double totalTime, IVector initialValue = null)
{
this.model = model;
this.linearSystems = solver.LinearSystems;
this.solver = solver;
//solver.PreventFromOverwrittingSystemMatrices(); //TODO: If the scheme is purely implicit we can overwrite the matrix.
this.provider = provider;
this.ChildAnalyzer = childAnalyzer;
this.beta = beta;
this.timeStep = timeStep;
this.totalTime = totalTime;
this.ChildAnalyzer.ParentAnalyzer = this;
}
private static IVectorView[] SolveModels(Model[] models)
{
SkylineSolver[] solvers = new SkylineSolver[models.Length];
IImplicitIntegrationProvider[] providers = new IImplicitIntegrationProvider[models.Length];
IChildAnalyzer[] childAnalyzers = new IChildAnalyzer[models.Length];
for (int i = 0; i < models.Length; i++)
{
//var builder = new DenseMatrixSolver.Builder();
solvers[i] = builder.BuildSolver(models[i]);
providers[i] = new ProblemStructural(models[i], solvers[i]);
childAnalyzers[i] = new LinearAnalyzer(models[i], solvers[i], providers[i]);
}
var parentAnalyzer = new NewmarkDynamicAnalyzerMultiModel(UpdateModels, models, solvers, providers, childAnalyzers, 0.28, 3.36, .25, .5);
parentAnalyzer.Initialize();
parentAnalyzer.Solve();
return(solvers.Select(x => x.LinearSystems[subdomainID].Solution).ToArray());
}
public void SolveTimestep(int i)
{
Debug.WriteLine("Newmark step: {0}", i);
if (CreateNewModel != null)
{
CreateNewModel(uu, uc, v, modelsForReplacement, solversForReplacement, providersForReplacement, childAnalyzersForReplacement);
model = modelsForReplacement[0];
solver = solversForReplacement[0];
linearSystems = solver.LinearSystems;
provider = providersForReplacement[0];
ChildAnalyzer = childAnalyzersForReplacement[0];
ChildAnalyzer.ParentAnalyzer = this;
InitializeInternal(true);
}
IDictionary <int, IVector> rhsVectors = provider.GetRhsFromHistoryLoad(i);
foreach (var l in linearSystems.Values)
{
l.RhsVector = rhsVectors[l.Subdomain.ID];
}
InitializeRhs();
CalculateRhsImplicit();
DateTime start = DateTime.Now;
ChildAnalyzer.Solve();
DateTime end = DateTime.Now;
UpdateVelocityAndAcceleration(i);
UpdateResultStorages(start, end);
// Print output results in *.txt file
if (i == 0)
{
using (var fileName = new StreamWriter(path))
{
double currentTime = ((i + 1) * timeStep);
string strTimeStep = currentTime.ToString();
var totalSolution = ChildAnalyzer.Responses[0][62]; //mesh446elem
//var totalSolution = ChildAnalyzer.Responses[0][1]; //meshXXCoarse254elem
//var totalSolution = ChildAnalyzer.Responses[0][57]; //meshXXCoarse
//var totalSolution = ChildAnalyzer.Responses[0][0]; //106TetCube100m
//var totalSolution = ChildAnalyzer.Responses[0][19]; //261TetCube100m
//var totalSolution = ChildAnalyzer.Responses[0][1]; //125HexaHyperelasticCube100m
//var totalSolution = ChildAnalyzer.Responses[0][13]; //4HexaHyperelasticCube100m
//var totalSolution = ChildAnalyzer.Responses[0][0]; //1Hexa
string strTotalSolution = totalSolution.ToString();
fileName.WriteLine(strTimeStep + " " + strTotalSolution);
}
}
else
{
using (var fileName = new StreamWriter(path, true))
{
double currentTime = ((i + 1) * timeStep);
string strTimeStep = currentTime.ToString();
var totalSolution = ChildAnalyzer.Responses[0][62]; //mesh446elem
//var totalSolution = ChildAnalyzer.Responses[0][1]; //meshXXCoarse254elem
//var totalSolution = ChildAnalyzer.Responses[0][57]; //meshXXCoarse
//var totalSolution = ChildAnalyzer.Responses[0][0]; //106TetCube100m
//var totalSolution = ChildAnalyzer.Responses[0][19]; //261TetCube100m
//var totalSolution = ChildAnalyzer.Responses[0][1]; //125HexaHyperelasticCube100m
//var totalSolution = ChildAnalyzer.Responses[0][13]; //4HexaHyperelasticCube100m
//var totalSolution = ChildAnalyzer.Responses[0][0]; //1Hexa
string strTotalSolution = totalSolution.ToString();
fileName.WriteLine(strTimeStep + " " + strTotalSolution);
}
}
}