The first image is shown for understanding only (representation of double helical gear).
For my project work, I have considered material as structural steel. I have not considered heat treatment. load is not considered.
The objective of the work is to calculate the gear teeth deformation...
Regarding Boundary conditions:
Only two boundary conditions.
I have given cylindrical support at the journal bearing bearing centers. (tangential is free, axial&radial - fixed).
Rotational speed (RPM) is given.
load is not considered (no-load)
reference image used in the static structural analysis. I have carried out analysis in ANSYS for calculating the gear tooth deformation for various pitch line velocities. gear tooth is expanded/ deformed as shown below. Why the gear tooth is not having the same deformation across the face width...
Both the gear and pinion on solid gears.
Both are running at same pitch line velocity.
The Ansys results are showing the expansion of gear tooth is more than the pinion tooth.
is there any contact between the gear tooth and pinion root area?
Thanks
The gear and pinion are running at high speeds and no-load condition.
are the pinion and gear tooth will have different expansions in radial direction?
I think, as the the gear is larger in size, the growth or expansion of the gear tooth is more than the pinion tooth.
if the expansion of the...
I have found some articles where the gear teeth temperature increases across the face width in helical gears. What are the reasons for increase in the temperature across the face width even though same amount of oil supplying? What methods can reduce the non-uniform temperature distribution?
The mineral oil is being supplied at 40 deg C, How to calculate flow rate, if the oil supply temperature is increased to 50 deg c and 60 deg C.
As the temperature increases, viscosity of the oil reduces. The specific gravity also reduces with temperature.
Q2/Q1 = (SG1/SG2)^(1/2)
flow rate of...
The ISO VG 32,46 and 68 oils are being used in gearboxes.
The gearboxes here specifying are high speed and high power gearboxes.
what is the maximum operating temperature of ISO VG 32 , 46 and 68 oils to have required viscosity to form sufficient film thickness between the meshing gears? if the...
Gears are rotating at higher pitch line velocity ( 100 m/s). How to calculate the gear tooth deformation due to rotational speed and centrifugal stress on gear tooth?
The gearbox with double helical gears are rotating at peripheral velocity of 80 m/s and the oil is supplied to the gears at the outmesh. The lubricantion oil ISO VG mineral oil. How to calculate the optimum gear mesh oil to the meshing area? How much is the bulk tooth temperature is allowable?
The high speeds gears are rotating at a peripheral velocity of 90 m/s, the lubrication type is pressure oil with nozzles pointing at the outmesh of gears. How much power loss will increase from no-load to full load? and how much rise in temperature of gear tooth from no-load to full-load?
How much temperature of gear/pinion tooth will be increased from no-load (2 to 5% of full-load) to full-load in high speed gearbox? oils used are ISO mineral oil. How to calculate the rise in temperature from no-load to full-load?
How much gearbox power loss will increase from no-load to...
