Re: [Scilab-users] Xcos - simulation problem with Backlash block

2017-03-22 Thread Clément David
Hello Tomasz, What's your Scilab version ? Could you post your example please ? FYI to report an issue, the bugzilla [1] should be used as it automates some reporting, eases communication and allow us to deliver the fix on the next version. Thanks, [1]: http://bugzilla.scilab.org/ -- Clément

Re: [Scilab-users] Xcos - simulation problem with Backlash block

2017-03-21 Thread Tim Wescott
Can you post the Xcos file that causes the problem? Backlash is very difficult to simulate.  The problem is what is known as "stiff", meaning that there are places in the state space where the linearized system suddenly changes its characteristics dramatically over a small change in the values of

[Scilab-users] Xcos - simulation problem with Backlash block

2017-03-21 Thread Tomasz Garstka
Hello I'm simulating in Xcos simple closed control loop (servo) with inertia block (1/1+Ts) as ramp function of drive. That's run OK. When I added Backlash block (to simulate real screw gear), the simulation take a long, long time without effect. If I remove inertia block, run OK, but no with both