The implementation of modelling tools at the design stage to predict and prevent gear failure has reached a whole new level according to an article in Gear Solutions by Berly McCoy.
The article briefly describes the various ways gears can fail from lubricating issues, flash temperatures and the numerous types of contact stresses. Understanding these factors contributes towards the prediction and prevention of them.
We are now aided by advances in computing power that have improved predictive modelling. However, there are also simpler and more accessible methods available.
There are 4 main areas where modelling can help end-users predict performance.
- (NVH) Noise, Vibration & Harshness – modelling can help reduce NVH for better consumer experience and to reduce external or drive-by noise.
- Tooth bending – understanding tooth bending to minimise fatigue and cracking
- Gear Mesh contact or gear mesh interfacing modelling can help designers understand how the surfaces will interact.
- Supply and distribution of the lubricant. Modelling offers a way to choose the best lubrication method, gear geometry design and condition monitoring.
Overcoming or reducing these issues is vital to gear performance and better modelling is key to this. This article suggests the most appropriate modelling depending on the issues and applications, read more.