ROPS Simulations

Deep insights into ROPS structural response yields elegant, efficient designs.

Non-Linear ROPS simulations correlated with real-world test results can yield very accurate predictions of actual ROPS behavior in a roll-over event. This approach not only vastly shortens the ROPS/Cab design process, but also leads to lower ROPS test costs by greatly increasing the first-attempt pass rate.

By correlating Non-Linear FEA studies with many years worth of actual physical ROPS Test results, we have developed our computer simulation techniques to a point that nearly eliminates unpleasant surprises during the actual test procedures. The output of the Non-Linear FEA process as used by ROPS & Cab Engineering is a load v. deflection curve that can then be integrated to calculate absorbed energy. The results can then be compared to the requirements of the appropriate ROPS Standard, as an overall benchmark of ROPS structural sufficiency. The ROPS/Cab must still be physically tested- analysis alone is not permitted by Industry Standards and/or Regulatory Statutes.

This same general technique can be used to scientifically assure that minor design changes or alterations in either the cab or the machine chassis do not have adverse effects compared to the physically tested ROPS, to the extent allowed by various Industry Standards and Regulatory Statutes. This technique, judiciously applied, can save literally tens of thousands of dollars in testing expenses, and assure your customers of the safest ROPS/Cabs possible.

If you would like to learn more about this cutting-edge technique, please call us to discuss your project.

Posted by Michael J. Koss, PE
Wisconsin License # M-31475
6-7-16