Vehicle vibration damping method in the induced repulsion type m

Details Vehicle vibration damping method in the induced repulsion type m Vehicle vibration damping method in the induced repulsion type m

1977-12-29

1981-06-16

Paperner, Leslie J.

Railways

Magnetically suspended car

B61B 300

Patent

active

042730546

ABSTRACT:
In an induced repulsion type magnetic suspension system for a railway vehicle, superconductive magnets of opposite polarities are alternately set at specific intervals in the longitudinal direction of vehicle, while in the longitudinal direction of the track conductive loop coils or conductive sheets are continuously set at specific intervals, whereby the repulsion due to the eddy current caused by a voltage induced in said conductive loop coils or conductive sheets by the superconductive magnets and said superconductive magnets levitates the vehicle. In this invention, an additional source to produce a magnetic field of the same polarity is provided on the vehicle; and thereby a magnetic flux with the same period as the vehicle vibration is applied which intersects said conductive loop coils or conductive sheets on the ground when the vehicle vibrates. Thus an induced current is produced by the magnetic flux and, using the magnetic force developed by this induced current and the magnetic source of the same polarity, the vibration of the running vehicle can be damped.

REFERENCES:
patent: 3158765 (1964-11-01), Polgreen
patent: 3828686 (1974-08-01), Steenbeck et al.
patent: 3858521 (1975-01-01), Atherton
patent: 3867886 (1975-02-01), Maki
patent: 3871301 (1975-03-01), Kolm et al.
patent: 3890906 (1975-06-01), Maki
patent: 3903809 (1975-09-01), Mievicke et al.
patent: 3913493 (1975-10-01), Maki et al.
patent: 4027597 (1977-06-01), Lang

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