/// <summary>
/// Gets the local distributed load.
/// </summary>
/// <param name="elm">The elm.</param>
/// <returns></returns>
/// <remarks>
/// Gets a vector that its components shows Wx, Wy and Wz in local coordination system of <see cref="elm"/>
/// </remarks>
private Vector GetLocalDistributedLoad(Element1D elm)
{
if (coordinationSystem == CoordinationSystem.Local)
{
return(new Vector(
direction == LoadDirection.X ? this.magnitude : 0,
direction == LoadDirection.Y ? this.magnitude : 0,
direction == LoadDirection.Z ? this.magnitude : 0));
}
if (elm is FrameElement2Node)
{
var frElm = elm as FrameElement2Node;
var w = new Vector();
var globalVc = new Vector(
direction == LoadDirection.X ? this.magnitude : 0,
direction == LoadDirection.Y ? this.magnitude : 0,
direction == LoadDirection.Z ? this.magnitude : 0);
w = frElm.TransformGlobalToLocal(globalVc);
return(w);
}
throw new NotImplementedException();
}
/// <summary>
/// Gets the internal force based on only this load at defined position <see cref="x"/>.
/// </summary>
/// <param name="elm">The elm.</param>
/// <param name="x">The x.</param>
/// <returns></returns>
/// <exception cref="System.NotImplementedException"></exception>
public override Force GetInternalForceAt(Element1D elm, double x)
{
if (elm is FrameElement2Node)
{
var frElm = elm as FrameElement2Node;
var l = (frElm.EndNode.Location - frElm.StartNode.Location).Length;
var w = GetLocalDistributedLoad(elm);
var gf1 = -GetGlobalEquivalentNodalLoads(elm)[0];
var f1 = new Force();
f1.Forces = frElm.TransformGlobalToLocal(gf1.Forces);
f1.Moments = frElm.TransformGlobalToLocal(gf1.Moments);
var f2 = new Force(new Vector(w.X * x, w.Y * x, w.Z * x), new Vector());
var buf = f1.Move(new Point(0, 0, 0), new Point(x, 0, 0)) +
f2.Move(new Point(x / 2, 0, 0), new Point(x, 0, 0));
return(-buf);
}
throw new NotImplementedException();
}
public abstract Force GetInternalForceAt(Element1D elm, double x);
/// <summary>
/// Gets the internal force at.
/// </summary>
/// <param name="elm">The elm.</param>
/// <param name="x">The x.</param>
/// <returns></returns>
/// <exception cref="System.NotImplementedException"></exception>
public override Force GetInternalForceAt(Element1D elm, double x)
{
throw new NotImplementedException();
}
public override Force GetInternalForceAt(Element1D elm, double x)
{
if (elm is FrameElement2Node)
{
var e = elm as FrameElement2Node;
var localForce = this.force;
if (this.coordinationSystem == CoordinationSystem.Global)
{
var tmp = e.TransformGlobalToLocal(localForce.Forces, localForce.Moments);
localForce.Forces = tmp[0];
localForce.Moments = tmp[1];
}
var l = (e.EndNode.Location - e.StartNode.Location).Length;
var l1 = distanseFromStartNode;
var l2 = l - l1;
var mymy1 = localForce.My * l2 / (l * l) * (l2 - 2 * l1);
var myfz1 = 6 * localForce.My * l1 * l2 / (l * l * l);
var mzmz1 = localForce.Mz * l2 / (l * l) * (l2 - 2 * l1);
var mzfy1 = -6 * localForce.Mz * l1 * l2 / (l * l * l);
var fzmy1 = -localForce.Fz * l1 * l2 * l2 / (l * l);
var fzfz1 = localForce.Fz * l2 * l2 / (l * l * l) * (3 * l1 + l2);
var fymz1 = localForce.Fy * l1 * l2 * l2 / (l * l);
var fyfy1 = localForce.Fy * l2 * l2 / (l * l * l) * (3 * l1 + l2);
var fxfx1 = localForce.Fx * l2 / l;
var mxmx1 = localForce.Mx * l2 / l;
var f1 = -new Force(
fxfx1,
mzfy1 + fyfy1,
fzfz1 + myfz1,
mxmx1,
mymy1 + fzmy1,
mzmz1 + fymz1
);
if (x < this.distanseFromStartNode)
{
var v1 = new Vector(x, 0, 0);
var buf = -f1.Move(v1);
return(buf);
}
else
{
var v1 = new Vector(x, 0, 0);
var v2 = new Vector(x - this.distanseFromStartNode, 0, 0);
var buf = -f1.Move(v1) - this.force.Move(v2);
return(buf);
}
}
throw new NotImplementedException();
}
