I sometimes ask collaborators for post ideas. At the end of our meeting this week, Prof. Mark Denavit suggested modeling a parametric oscillator in OpenSees and referred me to the following video. https://youtu.be/MUJmKl7QfDU OK, if you didn't watch the video, the response of a parametric oscillator is modified by some frequency-dependent parameter of the system. … Continue reading Parametric Oscillator →