A new precision positioning stage is designed with the adoption of both magnetic suspension and linear drive technology which employs a linear synchronous motor as to avoid friction, elastic distortion, hysteresis and non-linear errors.

A kind of motor driven load simulator (DMDLS) that uses DC torque motor and linear driver was designed, and flexibility pole was used to change connection stiffness of it, so measure noise and remain torque was depressed.

Fuzzy sliding mode control of uncertain underactuated nonlinear systems;