Safe-guarafitee measure in railway line system
For the clearance between the train and the railway-line,
by building up the high precision circuitry railway, the
security and comfortableness of the high-speed running train
can be ensured [7].
Firstly, to the mechanical performance of the railway
configuration, the distortion and flexibility of the rail
configuration must be dominated within a small range when
it is under the influence of trainload and environment.
Secondly, to reduce vibration of rail configuration when
the train running through, one order self-oscillation
frequency of rail girder must be no less than 1.1 times of the
span ratio, of which is running speed of train to rail stride.
Thirdly, rail manufacture requires high precision. Bring
forward strict making precision require to rail functional
region, considering top-board slipping rail-surface, two side
magnetic‘ guidance rail-surface and stator iron-core
underside, precision of making and fixing of these three
functional surface demands within lmm.
bJ Safety-guarontee measure in vehicle subsystem
In the vehicle, the subsystem, which is related to safety,
includes suspending system, guidance system, and vortex
braking system and so on.
Firstly, Safety-guarantee measure in losing suspension.
When some reason leads to the electromagnet force is lost
and the train fell down, the maglev train can slip on the train
bottom to holding move with a friction brake, and insure. the
velocity deceleration in the allowed scope. If vortex-braking
system can work, start up vortex braking.
Secondly, the prevention measures of “absorbing closely”
The gap sensor installed around the suspending
electromagnet measure the distance between the suspending
electromagnet and the rail iron rod to keep the suspending
gap in the 8-12 mm or so. When it examines an abnormal
circumstance that the suspending gap is smaller than one
certain limited value, the suspending control system will be
cut off the suspending power to avoid the high-speed wain
“absorbing closely” suddenly causing a terrible result.
Safe-guarafitee measure in railway line system For the clearance between the train and the railway-line, by building up the high precision circuitry railway, the security and comfortableness of the high-speed running train can be ensured [7]. Firstly, to the mechanical performance of the railway configuration, the distortion and flexibility of the rail configuration must be dominated within a small range when it is under the influence of trainload and environment. Secondly, to reduce vibration of rail configuration when the train running through, one order self-oscillation frequency of rail girder must be no less than 1.1 times of the span ratio, of which is running speed of train to rail stride. Thirdly, rail manufacture requires high precision. Bring forward strict making precision require to rail functional region, considering top-board slipping rail-surface, two side magnetic‘ guidance rail-surface and stator iron-core underside, precision of making and fixing of these three functional surface demands within lmm. bJ Safety-guarontee measure in vehicle subsystem In the vehicle, the subsystem, which is related to safety, includes suspending system, guidance system, and vortex braking system and so on. Firstly, Safety-guarantee measure in losing suspension. When some reason leads to the electromagnet force is lost and the train fell down, the maglev train can slip on the train bottom to holding move with a friction brake, and insure. the
velocity deceleration in the allowed scope. If vortex-braking
system can work, start up vortex braking.
Secondly, the prevention measures of “absorbing closely”
The gap sensor installed around the suspending
electromagnet measure the distance between the suspending
electromagnet and the rail iron rod to keep the suspending
gap in the 8-12 mm or so. When it examines an abnormal
circumstance that the suspending gap is smaller than one
certain limited value, the suspending control system will be
cut off the suspending power to avoid the high-speed wain
“absorbing closely” suddenly causing a terrible result.
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