This project studies a new system concept for freight transportation. The idea is to use capsules to transport
cargos in concealed pipelines powered by linear electric motors. Such a concept advocates the separation of
freight transportation from human movement and can be very effective in reducing the ever-increasing highway
This report examines the technical aspects of such a freight pipeline system powered by linear induction motors.
Forces acting on a capsule are first discussed, followed by the study of aerodynamic drag forces on a capsule and
linear induction thrust forces. Stabilities of both a single capsule and a multiple capsule system are also discussed.
These results reveal the basic characteristics of a freight pipeline system, propelled by linear induction propulsion.
Various technical issues are discussed.
Several related topics are recommended for future research.
Zhao, Yiyuan; Lundgren, Thomas S..
Dynamics and Stability of Capsules in Pipeline Transportation.
Minnesota Department of Transportation.
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