One central research interest lies in observing dwell fatigue crack growth for this new nickel-based superalloy, which will be used for rotor disc
applications in an aero-engine gas turbine.
Not to mention the Vios will now be equipped with TRD Rotor Disc
Brakes, providing higher braking power.
As shown in Figure 4, the angles of attack of 90[degrees] and -90[degrees] correspond to the freestream being normal to the rotor disc
, which are associated with the rotor in a vertical climb and descent, respectively.
Grinding sounds are mainly two causes: Contact of the rotor disc
with part of the brake caliper or a foreign object lodged somewhere in the caliper.
The induced velocity of a spatial point below the rotor disc
plane can be calculated by the sum of the induced velocities excited by center line vortex, rotor disk vortex, and skew cylinder vortex based on the generalized vortex theory.
Forces on the whole rotor disc
can be calculated via the following equations:
This vibration mode mainly consists of third order out of plane rotor disc
mode and the first order bending of the caliper mode.
This is handled by the preconditioning unit, which is optimised for the regrind and in which the material is processed in an extremely gentle way by means of a rotor disc
with a special tool setup.
For auto-starting, a spaced and raised ring is added to the inner radii of the rotor disc
that partially covers the inner yoke of the stator.
The report also said the helicopter's main rotor disc
had struck a fir tree about 30ft below its top and that "the pilotmay have been attempting to arrest a rate of descent and was therefore trying to avoid the rising terrain".
[B.sub.cr] is the flux density in the rotor disc
core, and [B.sub.u] is the attainable flux density on the surface of the PM.
The manufacturer indicates that the main rotor disc
has a diameter of 15.08 metres, which is 50 cm smaller than the original French Puma (the blades are of local manufacture).