The cross-sectional cut configuration for an axial electrodynamic bearing is shown below. The conducting disc is attached to the rotor and the magnetic material (iron yoke) is used to guide the magnetic fields of the PMs, such that the magnetic flux lines are parallel to the rotor axis. This...
The Gear Hobbing in Industrial Gearbox Manufacturing Previous post Grinding Gear Process: The indispensable part of industrial gearbox manufacturing Next post
Two different planning methods are described in literature to calculate the desired correction: the Dugdale method [22] and the Miniaci one [23]. The Dugdale method is the most used. A line is drawn between the center of the femoral head and the desired correction point at the tibial plateau...
with L10 hrs N = 16667/N * (C/P)3 = speed (rpm) The Equivalent Radial Load is defined as: P = XFr + YFa with Fr Fa X Y = radial load (lb) = axial load (lb) = see table below = see table below For radial contact ball bearings calculate P with X = 1.0 and Y=1.0. Th...
To measure shaft endplay, mount a dial indicator at the end of a shaft and move the shaft in the axial direction. In most cases, this requires a fixture with a ball bearing on the central shaft that allows pushing and pulling the shaft while it is rotated to seat the bearing rollers....
Similarly, using two bearings on one guide can eliminate pitch moment forces, converting them to pure downward and liftoff loads on each bearing. Using two bearings on one guide also counters yaw moment forces, but in this case, the resulting forces are side (lateral) forces on each bearing...
Answer to: Explain how limit load factors change with changes in aircraft weight. Support your answer with formula work and/or calculation example...
If you know how much power you are planning to get and you know the wind speed and rough efficiency then you can calculate the required cross-sectional area of your turbine. If you know the cross-sectional area of your turbine then you know the blade radius. If you know the tip speed ...
Wind power increases as a cube function of wind speed. That means, doubling the wind speed provides an 8 fold increase in wind power (23= 2x2x2 = 8). This provides an easy way to calculate the WOPR. Like so: Rwop= (Vcut out/Vrated power)3 ...
whereFrepresents the radial load acting on the bearing,𝑑𝑚dmis the mean diameter of the bearing, andfis the rolling friction coefficient of the bearing. To calculate the radial force acting on the bearings, a system consisting of two meshing wheels, each fixed onto a shaft supported by a...