private static void SolveBuildingInNoSoilSmallVRFStochastic()
{
VectorExtensions.AssignTotalAffinityCount();
Model model = new Model();
model.SubdomainsDictionary.Add(1, new Subdomain()
{
ID = 1
});
BeamBuildingBuilder.MakeBeamBuilding(model, 20, 20, 20, 5, 4, model.NodesDictionary.Count + 1,
model.ElementsDictionary.Count + 1, 1, 4, false, false);
model.Loads.Add(new Load()
{
Amount = -100, Node = model.Nodes[21], DOF = DOFType.X
});
model.ConnectDataStructures();
PowerSpectrumTargetEvaluatorCoefficientsProvider stochasticProvider = new PowerSpectrumTargetEvaluatorCoefficientsProvider(10, 0.1, 1.2, 20, 200, DOFType.X,
0.1, 200, 1e-10);
SolverSkyline solver = new SolverSkyline(model);
ProblemStructural provider = new ProblemStructural(model, solver.SubdomainsDictionary);
LinearAnalyzer analyzer = new LinearAnalyzer(solver, solver.SubdomainsDictionary);
StaticAnalyzer childAnalyzer = new StaticAnalyzer(provider, analyzer, solver.SubdomainsDictionary);
VRFMonteCarloAnalyzerWithStochasticMaterial stochasticAnalyzer = new VRFMonteCarloAnalyzerWithStochasticMaterial(model, provider, childAnalyzer, solver.SubdomainsDictionary,
stochasticProvider, stochasticProvider, 1, 20, "monteCarlo");
analyzer.LogFactories[1] = new LinearAnalyzerLogFactory(new int[] { 420 });
//stochasticAnalyzer.BuildMatrices();
//childAnalyzer.Initialize();
stochasticAnalyzer.Solve();
}
private static void SolveBuildingInNoSoilSmall()
{
VectorExtensions.AssignTotalAffinityCount();
Model model = new Model();
model.SubdomainsDictionary.Add(1, new Subdomain()
{
ID = 1
});
BeamBuildingBuilder.MakeBeamBuilding(model, 20, 20, 20, 5, 4, model.NodesDictionary.Count + 1,
model.ElementsDictionary.Count + 1, 1, 4, false, false);
model.Loads.Add(new Load()
{
Amount = -100, Node = model.Nodes[21], DOF = DOFType.X
});
model.ConnectDataStructures();
SolverSkyline solver = new SolverSkyline(model);
ProblemStructural provider = new ProblemStructural(model, solver.SubdomainsDictionary);
LinearAnalyzer analyzer = new LinearAnalyzer(solver, solver.SubdomainsDictionary);
StaticAnalyzer parentAnalyzer = new StaticAnalyzer(provider, analyzer, solver.SubdomainsDictionary);
analyzer.LogFactories[1] = new LinearAnalyzerLogFactory(new int[] { 420 });
parentAnalyzer.BuildMatrices();
parentAnalyzer.Initialize();
parentAnalyzer.Solve();
}
public void TestEulerBeam2DLinearBendingExample()
{
// Model and node creation
var model = new Model();
model.NodesDictionary.Add(1, new Node {
ID = 1, X = 0.0, Y = 0.0, Z = 0.0
});
model.NodesDictionary.Add(2, new Node {
ID = 2, X = 100.0, Y = 0.0, Z = 0.0
});
model.NodesDictionary.Add(3, new Node {
ID = 3, X = 200.0, Y = 0.0, Z = 0.0
});
// Constrain bottom node and add nodal load value
model.NodesDictionary[1].Constraints.AddRange(new[] { DOFType.X, DOFType.Y, DOFType.Z, DOFType.RotZ });
model.Loads.Add(new Load()
{
Amount = 2000, Node = model.NodesDictionary[3], DOF = DOFType.Y
});
// Generate elements of the structure
for (int iElem = 0; iElem < 2; iElem++)
{
// Create new Beam2D section and element
var element = new EulerBeam2D(2.1e4)
{
ID = iElem + 1, Density = 7.85, SectionArea = 91.04, MomentOfInertia = 8091.00
};
element.ElementType = element;
// Add nodes to the created element
element.AddNode(model.NodesDictionary[iElem + 1]);
element.AddNode(model.NodesDictionary[iElem + 2]);
// Add Hexa element to the element and subdomains dictionary of the model
model.ElementsDictionary.Add(element.ID, element);
}
// Needed in order to make all the required data structures
model.ConnectDataStructures();
// Setup
var linearSystem = new SkylineLinearSystem(model.Forces);
var solver = new SolverSkyline(linearSystem);
var provider = new ProblemStructural(model);
var childAnalyzer = new LinearAnalyzer(solver);
var parentAnalyzer = new StaticAnalyzer(provider, childAnalyzer, linearSystem);
parentAnalyzer.BuildMatrices();
parentAnalyzer.Initialize();
parentAnalyzer.Solve();
// Tests if calculated solution meets expected
var expectedSolution = new double[] { 0, 9.80905689841542, 0.17656302417147754, 0, 31.388982074929341, 0.23541736556197002 };
for (int i = 0; i < expectedSolution.Length; i++)
{
Assert.Equal(expectedSolution[i], linearSystem.Solution[i], 12);
}
}
private static Vector RunAnalysis(Model model)
{
// Setup analysis
var linearSystem = new SkylineLinearSystem(model.Forces);
var solver = new SolverSkyline(linearSystem);
var provider = new ProblemStructural(model);
var childAnalyzer = new LinearAnalyzer(solver);
var parentAnalyzer = new StaticAnalyzer(provider, childAnalyzer, linearSystem);
parentAnalyzer.BuildMatrices();
parentAnalyzer.Initialize();
parentAnalyzer.Solve();
return(linearSystem.Solution);
}
public void TestQuad4LinearCantileverExample()
{
// Model and node creation
var model = new Model();
model.NodesDictionary.Add(1, new Node {
ID = 1, X = 0.0, Y = 0.0, Z = 0.0
});
model.NodesDictionary.Add(2, new Node {
ID = 2, X = 10.0, Y = 0.0, Z = 0.0
});
model.NodesDictionary.Add(3, new Node {
ID = 3, X = 10.0, Y = 10.0, Z = 0.0
});
model.NodesDictionary.Add(4, new Node {
ID = 4, X = 0.0, Y = 10.0, Z = 0.0
});
// Constrain bottom nodes of the model and add loads
model.NodesDictionary[1].Constraints.AddRange(new[] { DOFType.X, DOFType.Y });
model.NodesDictionary[4].Constraints.AddRange(new[] { DOFType.X, DOFType.Y });
model.Loads.Add(new Load()
{
Amount = 500, Node = model.NodesDictionary[2], DOF = DOFType.X
});
model.Loads.Add(new Load()
{
Amount = 500, Node = model.NodesDictionary[3], DOF = DOFType.X
});
// Create Quad4 element and its material
var material = new ElasticMaterial2D(StressState2D.PlaneStress)
{
YoungModulus = 3.76, PoissonRatio = 0.3779
};
var quad = new Quad4(material)
{
Thickness = 1
};
// Create the element connectivity
var element = new Element()
{
ID = 1, ElementType = quad
};
element.AddNode(model.NodesDictionary[1]);
element.AddNode(model.NodesDictionary[2]);
element.AddNode(model.NodesDictionary[3]);
element.AddNode(model.NodesDictionary[4]);
// Add quad element to the element and subdomains dictionary of the model
model.ElementsDictionary.Add(element.ID, element);
model.ConnectDataStructures();
// Setup
var linearSystem = new SkylineLinearSystem(model.Forces);
var solver = new SolverSkyline(linearSystem);
var provider = new ProblemStructural(model);
var childAnalyzer = new LinearAnalyzer(solver);
var parentAnalyzer = new StaticAnalyzer(provider, childAnalyzer, linearSystem);
parentAnalyzer.BuildMatrices();
parentAnalyzer.Initialize();
parentAnalyzer.Solve();
var expectedSolution = new double[] { 253.13237596153559, 66.567582057178811, 253.13237596153553, -66.567582057178811 };
for (int i = 0; i < expectedSolution.Length; i++)
{
Assert.Equal(expectedSolution[i], linearSystem.Solution[i], 12);
}
}
private static void TestLinearTrussExample()
{
// Model and node creation
Model model = new Model();
model.NodesDictionary.Add(1, new Node {
ID = 1, X = 0, Y = 0
});
model.NodesDictionary.Add(2, new Node {
ID = 2, X = 0, Y = 40
});
model.NodesDictionary.Add(3, new Node {
ID = 3, X = 40, Y = 40
});
// Constrain bottom nodes of the model and add loads
model.NodesDictionary[1].Constraints.AddRange(new[] { DOFType.X, DOFType.Y });
model.NodesDictionary[2].Constraints.AddRange(new[] { DOFType.X, DOFType.Y });
model.Loads.Add(new Load()
{
Amount = 500, Node = model.NodesDictionary[3], DOF = DOFType.X
});
model.Loads.Add(new Load()
{
Amount = 300, Node = model.NodesDictionary[3], DOF = DOFType.Y
});
var element1 = new Truss2D(1e7)
{
ID = 1, Density = 1, SectionArea = 1.5
};
element1.ElementType = element1;
var element2 = new Truss2D(1e7)
{
ID = 2, Density = 1, SectionArea = 1.5
};
element2.ElementType = element2;
element1.AddNode(model.NodesDictionary[1]);
element1.AddNode(model.NodesDictionary[3]);
element2.AddNode(model.NodesDictionary[2]);
element2.AddNode(model.NodesDictionary[3]);
model.ElementsDictionary.Add(element1.ID, element1);
model.ElementsDictionary.Add(element2.ID, element2);
model.ConnectDataStructures();
// Setup
var linearSystem = new SkylineLinearSystem(model.Forces);
var solver = new SolverSkyline(linearSystem);
var provider = new ProblemStructural(model);
var childAnalyzer = new LinearAnalyzer(solver);
var parentAnalyzer = new StaticAnalyzer(provider, childAnalyzer, linearSystem);
parentAnalyzer.BuildMatrices();
parentAnalyzer.Initialize();
parentAnalyzer.Solve();
Assert.Equal(0.00053333333333333336, linearSystem.Solution[0], 10);
Assert.Equal(0.0017294083664636196, linearSystem.Solution[1], 10);
}
/// <summary> /// Creates an instance that uses a specific solver for the solution of a linear system of equations /// </summary> /// <param name="solver">Instance of the solver that will solve the linear system of equations</param> public LinearAnalyzer(SolverSkyline solver) => this.Solver = solver;
static void Main(string[] args)
{
VectorExtensions.AssignTotalAffinityCount();
double youngModulus = 200.0e06;
double poissonRatio = 0.3;
double nodalLoad = 25.0;
// Create a new elastic 3D material
ElasticMaterial3D material = new ElasticMaterial3D()
{
YoungModulus = youngModulus,
PoissonRatio = poissonRatio,
};
// Node creation
IList <Node> nodes = CreateNodes();
// Model creation
Model model = new Model();
// Add a single subdomain to the model
model.SubdomainsDictionary.Add(1, new Subdomain()
{
ID = 1
});
// Add nodes to the nodes dictonary of the model
for (int i = 0; i < nodes.Count; ++i)
{
model.NodesDictionary.Add(i + 1, nodes[i]);
}
// Constraint bottom nodes of the model
model.NodesDictionary[1].Constraints.Add(DOFType.X);
model.NodesDictionary[1].Constraints.Add(DOFType.Y);
model.NodesDictionary[1].Constraints.Add(DOFType.Z);
model.NodesDictionary[2].Constraints.Add(DOFType.X);
model.NodesDictionary[2].Constraints.Add(DOFType.Y);
model.NodesDictionary[2].Constraints.Add(DOFType.Z);
model.NodesDictionary[3].Constraints.Add(DOFType.X);
model.NodesDictionary[3].Constraints.Add(DOFType.Y);
model.NodesDictionary[3].Constraints.Add(DOFType.Z);
model.NodesDictionary[4].Constraints.Add(DOFType.X);
model.NodesDictionary[4].Constraints.Add(DOFType.Y);
model.NodesDictionary[4].Constraints.Add(DOFType.Z);
// Create a new Hexa8 element
var element = new Element()
{
ID = 1,
ElementType = new Hexa8(material)
};
// Add nodes to the created element
element.AddNode(model.NodesDictionary[1]);
element.AddNode(model.NodesDictionary[2]);
element.AddNode(model.NodesDictionary[3]);
element.AddNode(model.NodesDictionary[4]);
element.AddNode(model.NodesDictionary[5]);
element.AddNode(model.NodesDictionary[6]);
element.AddNode(model.NodesDictionary[7]);
element.AddNode(model.NodesDictionary[8]);
// Add Hexa element to the element and subdomains dictionary of the model
model.ElementsDictionary.Add(element.ID, element);
model.SubdomainsDictionary[1].ElementsDictionary.Add(element.ID, element);
// Add nodal load values at the top nodes of the model
model.Loads.Add(new Load()
{
Amount = -nodalLoad, Node = model.NodesDictionary[5], DOF = DOFType.Z
});
model.Loads.Add(new Load()
{
Amount = -nodalLoad, Node = model.NodesDictionary[6], DOF = DOFType.Z
});
model.Loads.Add(new Load()
{
Amount = -nodalLoad, Node = model.NodesDictionary[7], DOF = DOFType.Z
});
model.Loads.Add(new Load()
{
Amount = -nodalLoad, Node = model.NodesDictionary[8], DOF = DOFType.Z
});
// Needed in order to make all the required data structures
model.ConnectDataStructures();
// Choose linear equation system solver
SolverSkyline solver = new SolverSkyline(model);
// Choose the provider of the problem -> here a structural problem
ProblemStructural provider = new ProblemStructural(model, solver.SubdomainsDictionary);
// Choose parent and child analyzers -> Parent: Static, Child: Linear
Analyzers.LinearAnalyzer childAnalyzer = new LinearAnalyzer(solver, solver.SubdomainsDictionary);
StaticAnalyzer parentAnalyzer = new StaticAnalyzer(provider, childAnalyzer, solver.SubdomainsDictionary);
// Choose dof types X, Y, Z to log for node 5
childAnalyzer.LogFactories[1] = new LinearAnalyzerLogFactory(new int[] {
model.NodalDOFsDictionary[5][DOFType.X],
model.NodalDOFsDictionary[5][DOFType.Y],
model.NodalDOFsDictionary[5][DOFType.Z]
});
// Analyze the problem
parentAnalyzer.BuildMatrices();
parentAnalyzer.Initialize();
parentAnalyzer.Solve();
// Write results to console
Console.WriteLine("Writing results for node 5");
Console.WriteLine("Dof and Values for Displacement X, Y, Z");
Console.WriteLine(childAnalyzer.Logs[1][0]);
}
