Adams Machinery > Cable > Cable Analysis

Cable Analysis

As cable simulation is mostly characterized by many stiff contacts between cable elements and pulleys.
A unique default setting of solver parameters has been guessed from experience to fit as much as possible of real industrial data when using both simplified and discretized cable formulation. These setting values can be applied automatically upon cable system creation in your model (and can always be over-ridden by editing values in the standard Adams View solver settings dialog box):
 
■Initial Condition
Error = 1E-7
■Static Equilibrium
Original / Error = 1E-4 / Imbalance = 1E-4 / Stability = 0.5
Maxit = 100 / Alimit = 10d / Tlimit = half_of_cable_diameter
■Dynamic
GSTIFF / I3 / Corrector = Modified / Interpolate = no
Error = 1E-3 / Hinit = 1E-6
 
Important:  
■The use of C++ solver is highly recommended (there are known issues with Fortran solver when using discretized cable formulation - see known issues list).
■Finding an equilibrium position for cable system models can be important especially when the entered value of cable preload will cause significant displacements away from the model's design (initial) position.
■Initial static equilibrium might be difficult to solve (in this case, it is recommended to skip it by directly starting dynamic simulation with some stabilization delay).
■It might be necessary to tune static and dynamic solver parameters depending on the complexity of the model.