Feature Highlight: Romax Bearing Dynamics
With the rise of electric vehicles, bearings are operating under increasingly high speeds. Combined with low load conditions, this can lead to a dynamic phenomenon known as bearing skidding. In certain circumstances, bearing skidding can generate excessive frictional heat and high surface shear stress, and subsequently result in efficiency issues or premature bearing failure.
Romax’s Bearing Dynamics application uses a novel approach based on transient time-domain analysis to predict the occurrence of skidding in electric-vehicle bearings in a matter of minutes. The model considers structural, thermal and fluid domains, including the influence of centrifugal and gyroscopic effects on rolling- element dynamics, heat generated by the lubricant and associated temperature rise, and rheology and traction behaviour of the lubricating oil.
This application helps design engineers and bearing analysts to avoid damaging failures by designing more reliable bearings and selecting better lubricants, through unique insight of the underlying skidding mechanism and bearing dynamics.
“For us, what’s most important is that we can support our customers with correct bearing life calculations in order to prevent future bearing failures and claims. Our investment in the software is well worth the huge costs at risk with such issues. [Romax Software] gives us the confidence to design bearings which we know will perform to our high standards of quality. We envisage we will use it for many years to come.”
“[Romax software] allows us to meet the needs of our customers quickly, effectively, and professionally.
Our customers are happy when they can rely on us to design customized bearings for a particular application, optimize existing designs, and suggest effective solutions. The most important thing for us is that we can trust the results that [Romax Software] gives us, which means we can confidently implement geometric optimizations and design a product suitable for its application.”
“Romax has a strong bearing simulation capacity. We have developed a long-term collaboration with Romax and have significantly benefited from our communication with them, especially in some special fields with special development requirements, such as large bearings, high speed bearings and journal bearings. As a very professional bearing development software, [Romax Software] is an important tool in our design and development process”