Hyung-Suk Han

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A web-based dynamic simulation system, called O-DYN, for multibody systems is developed. All the interfaces of the system are accessible via web browsers, such as Netscape or Explorer. The system uses a block-diagram type ODYN/Modeler developed in JAVA Applet as a preprocessor. The O-DYN postprocessor composed of O-DYN/Plotter and O-DYN/Animator is(More)
In this paper, the levitation control of a hybrid-excited magnetic levitation (maglev) vehicle is presented. Both electromagnets and permanent magnets are used to levitate the vehicle. The nominal load is levitated by permanent magnet and the current consumption for stable levitation can be reduced. In order to guarantee the tracking performance, the(More)
This paper deals with the levitation control design for super-speed magnetic levitation (Maglev) trains. The state feedback controller as well as a linear observer is utilized in the general framework accounting for the guideway deviation. The configuration of the control system is presented, and its characteristics are analyzed theoretically and(More)
The uneven reaction surface profile facing the lift magnets in attractive maglev vehicle based on linear synchronous motor (LSM) naturally brings about roll motion of the bogie. In particular, in the configuration of placing the long stator of LSM on track for high-speed propulsion, the surface irregularities and the offsets between the stator packs make(More)
A practical method for specification of driving constraints for a dynamics simulation of a parallel-serial manipulator is presented. It is very hard for a dynamics engineer to specify driving constraints of a parallel-serial manipulator to obtain desired positions in space using a dynamics simulation program based on Cartesian coordinate formulation. But(More)
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