Thrust and levitation force of linear synchronous motors for propulsion and levitation use

In recent years levitated railway systems have been studied in many countries. Most vehicles proposed would be driven by linear motors but levitated pneumatically or magnetically. Two types of linear motor--synchronous and induction--are available. They are in some cases only for propulsion and in other cases for propulsion and levitation. A basic model of linear synchronous motor for propulsion and levitation is suggested. An analysis of the thrust and levitation forces of such a motor is made.