What's new in 20-sim?

General Features

• The Parameter Editor and Variables chooser show the model icons in the model tree.
• Any model or plot can be exported to bitmap (png file).
• You can enter library paths for library models, c-code generation, export to matlab and template files.

Editor

• A brand-new Document Editor can be used to generate output files (html) for Word Processors and Presentation software.
• A Find box has been added to the button bar.

Simulator

• Simulation buttons have been added to Secondary plot windows.

Library

• Signal:
  • The model derivative has been added.
  • The model second derivative has been added.
  • The square wave generator model has been changed. The internal frequencyevent has been relaxed from 1e-15 to 1e-14 to prevent the integration method from stopping when running stiff models.
• Hydraulics:
  • A hydraulic inertia has been added.
  • The four three way directional valve models now have four spool centers (open, closed, tandem and floating).
  • The four three way proportional valve models now have four spool centers (open, closed, tandem and floating).
  • The pressure relief valve and pressure reducing valve models have updated icons.
  • A counter balance valve has been added.
  • A pilot operated check valve has been added.
  • New hydraulic example models have been added:
  • Cylinder Slip - 1.emx
  • Cylinder Slip - 2.emx
  • Cylinder Cavitation - 1.emx
  • Cylinder Cavitation - 2.emx
• You can add your own libraries (Windows folders) to be displayed in the library browser.
• New models have been added to the library.
• The function linsolve now has optional methods (lu, qr, cholesky, gmres)
• Various models have been combined into one model (having multiple implementations)

Frequency Domain Toolbox

• In the Linear System Editor you can reduce the order of a system by pole zero cancelation.
• In the FFT analysis you can indicate the peaks in an FFT plot.

3D Animation Toolbox

• A brand-new Movie Creator will help you to create movies from 3D Animations with few mouse clicks.
• The 3D Animation window is equipped with a toolbar.

3D Mechanics Toolbox

• 3D Mechanics models can be opened from the 20-sim Editor.
• Acceleration Sensors have been added to the library.
• You can add a spring and damping to a joint and define endstops.

Solved Bugs

• Initial Equations with global variables are now correctly solved.
• Ports of models that are generated with the 3D Mechanics Editor now have the right domain (now: translation or rotation, was: power).
• In windows Vista, bitmaps are correctly shown in a 3D Animation.
• Imploding and Exploding models that have an implementation now works fine.
• Incorrect initialization of matrices in initial equations solved.
• Showing peaks in FFT plots improved.