414 – Modelica.Mechanics.MultiBody.Examples.Constraints.SphericalConstraint

            The model has the same number of unknowns and equations: 2983
The model could not be deduced to be symbolically well-posed.
The model has
  2955+4*(size(world.x_label.lines, 1)+size(world.y_label.lines, 1)+size(  world.z_label.lines, 1))
scalar unknowns and
  2917+(if  not Connections.isRoot(bodyOfJoint.body.frame_a.R) then 13 else 22)+(  if  not Connections.isRoot(bodyOfConstraint.body.frame_a.R) then 13 else 22)+(  if springOfJoint.lineForce.fixedRotationAtFrame_a then 12 else 3)+(if   springOfJoint.lineForce.fixedRotationAtFrame_b then 12 else 3)+(if   springOfConstraint.lineForce.fixedRotationAtFrame_a then 12 else 3)+(if   springOfConstraint.lineForce.fixedRotationAtFrame_b then 12 else 3)+4*size(  world.x_label.lines, 1)+4*size(world.y_label.lines, 1)+4*size(world.z_label.lines,   1)
scalar equations.
However, exploiting the given numerical settings of parameters gives the same number of unknowns and equations:
  2983
Check of <a href="Modelica://Modelica.Mechanics.MultiBody.Examples.Constraints.SphericalConstraint">Modelica.Mechanics.MultiBody.Examples.Constraints.SphericalConstraint</a> successful.


        

             = true
Translation of Modelica.Mechanics.MultiBody.Examples.Constraints.SphericalConstraint:
The DAE has 2983 scalar unknowns and 2983 scalar equations.
 
Statistics
 
Original Model
  Number of components: 147
  Variables: 1388
  Constants: 1 (1 scalars)
  Parameters: 370 (586 scalars)
  Unknowns: 1017 (2983 scalars)
  Differentiated variables: 49 scalars
  Equations: 911
  Nontrivial: 632
Translated Model
  Constants: 2070 scalars
  Free parameters: 94 scalars
  Parameter depending: 292 scalars
  Continuous time states: 12 scalars
  Time-varying variables: 260 scalars
  Alias variables: 854 scalars
  Number of mixed real/discrete systems of equations: 0
  Sizes of linear systems of equations: {4, 6, 6, 2, 3}
  Sizes after manipulation of the linear systems: {4, 3, 3, 2, 3}
  Sizes of nonlinear systems of equations: {16}
  Sizes after manipulation of the nonlinear systems: {4}
  Number of numerical Jacobians: 0
  Initialization problem
    Sizes of linear systems of equations: {3}
    Sizes after manipulation of the linear systems: {3}
    Sizes of nonlinear systems of equations: {4}
    Sizes after manipulation of the nonlinear systems: {4}
    Number of numerical Jacobians: 0
 
Settings
Advanced.StoreProtectedVariables = true
Selected continuous time states
Statically selected continuous time states
  bodyOfConstraint.body.w_a[]
  freeMotionScalarInit.initAngle.angle[]
  joint.w_rel[]
 
Dynamically selected continuous time states
There is one set of dynamic state selection.
There are 3 states to be selected from:
  joint.Q[]
 
        

            
bodyOfConstraint.body.w_a[]
freeMotionScalarInit.initAngle.angle[]
joint.w_rel[]
        

            
4
        

            Log-file of program ./dymosim
(generated: Tue May  5 02:05:59 2020)

dymosim started
... "dsin.txt" loading (dymosim input file)
... "SphericalConstraint.mat" creating (simulation result file)

Integration started at T = 0 using integration method DASSL
(DAE multi-step solver (dassl/dasslrt of Petzold modified by Dassault Systemes))
Integration terminated successfully at T = 10
   CPU-time for integration                : 0.203 seconds
   CPU-time for one grid interval          : 0.0406 milliseconds
   CPU-time for initialization             : 0.001 seconds
   Number of result points                 : 5017
   Number of grid points                   : 5001
   Number of accepted steps                : 744
   Number of f-evaluations (dynamics)      : 1360
   Number of Jacobian-evaluations          : 218
   Number of model time events             : 0
   Number of input time events             : 0
   Number of state events                  : 0
   Number of step events                   : 16
   Minimum integration stepsize            : 2.71e-07
   Maximum integration stepsize            : 0.0448
   Maximum integration order               : 5
Calling terminal section
... "dsfinal.txt" creating (final states)