Hey there guys, I have some issues with the physically implementation of Van Der Pol oscillator and also with simulation (Multisim SW). We are using the schematic circuit below and tried many things since it wasn't working. We took base on the attached docs http://ccreweb.org/documents/physics/chaos/vdp2006.html. Had some issues related to transient analysis and simulation was stopped; abstol, vntol, reltol and gmin were set to "0.001" fixing the issue up. However, it is still not working, it oscillates when a sen signal is used to feed circuit but with a constant value of u doesn't work. Could someone help me please? .ms14 project is attached as well.
