The SD Oscillators, Isolators and the Mechanical Suspensor with Applications in Engineering

Herein this topic, we talk about a geometrical oscillator series, the isolators and also a mechanical suspensor for the high-order co-dimension bifurcations with infinite parameters constructed with the simplest mass and springs. Started from the mass-spring system a series of geometrical nonlinear oscillators are generated with several constrained geometrical parameters and the corresponding universal unfolding is provided to unfold the high order co-dimension bifurcations with multiple parameters. Secondly, we provide a series quasi-zero stiffness isolators of finite order, and finally, as the limit as the number of parameters increases to infinity, the so-called suspensor is presented of co-dimension infinity with infinite parameters. We would like to end the talk with some applications.