Palgmer-Miner equation is used in ISO standard ISO 6336-6. I want to understand how it is derived. It helps to consolidate damage caused by multiple torque, cycle bins. A bin means a torque applied for a given number of cycle. As an outcome of the equation, a single equivalent torque that...
I was going through these two documents:
https://www.schaeffler.com/remoteme...effler_2/symposia_1/downloads_11/4_DMFW_1.pdf
http://www.partinfo.co.uk/docs/140
My primary interest was to understand why and how Dual Mass Flywheel (DMF) is superior over the conventional Single Mass Flywheel...
Hi,
We are doing a gear box for a two wheeler (for the first time). Most of our benchmarks are of Suzuki and Honda bikes. All their gears are made of SCM420. Surprising part is these gear teeth are formed by cold forging. No machining at all!
Now, I was comparing the chemical composition of...
Hi,
I am facing a gear root bending failure in one of our commercial application transmissions. Due to practical reasons, changing any dimension is impossible.
The gear is made of 20MnCr5, gas carburized. Couple of seniors are suggesting to go with EN353 instead. Two reasons:
1. EN353 is...
Hi,
Can we measure the start of tip relief diameter of a gear involute profile? My gear suppliers say the machines can not measure exact tip relief diameter. They have got a Tokyo technical instruments make gear machining machine and a Wenzel gear tester machine. How true it is? What is the...
Just because shaving doesn't finish the root of a gear, a protuberance is given during hobbing. This, most of the time, leads to an undercut. To avoid this, can shaving operation clear root of the gear as well? Thus, I can avoid protuberance.
Another question - Can grinding clear root?
Hi,
In Catia V5 R20, I get options to enable or disable hybrid design. With that I also have a choice to create a geometric set or not. My question now is this:
What difference does it make between Hybrid design enabled and disabled but keeping geometric set on in both the conditions?
I read...
Hi,
I want to understand how stress concentration factor or notch factor is considered in FEA method.
Lets assume a case of stepped shaft which has got the left end of the shaft fixed with rigid wall and the other end being pulled by an axial load.(pic. attached)
In the case of conventional...
