DyRoBeS: Testimonials

Your comments are welcome. DyRoBeS is improving based on your valuable suggestions and comments.

"Unexpected rotordynamic behavior in our supersonic compressor had cost several precious months and over $100,000 trying to find the cause. With no prior experience using rotordynamics software, we purchased DyRoBeS and hired Eigen Technologies for a three-day visit to our Seattle offices. On the first day our two engineers gained the ability to build, modify and analyze models of our three-shaft compressor demonstrator. On the second day, with Dr. Chen's guidance, the engineers had conclusively identified the cause of the rotordynamic problem. On the third day, the engineers analyzed dozens of possible solutions to the problem and determined a suitable fix within stringent cost and schedule constraints. The tilting-pad bearing and squeeze-film dampers we designed that day were nearly identical to the equipment later used to achieve full operational capability in our compressor. We then conducted controlled-imbalance tests to compare the rig's improved rotordynamic response with DyRoBeS predictions and were impressed by the extremely close agreement. We are completely satisfied with the program and customer support." - Joe Williams, Technical Director, Ramgen Power Systems.

"Doing rotor dynamic work on a wide variety of machines, I have been very impressed with DyRoBeS. It has the capabilities I need for both the rotor model and the bearing calculations, yet it remains fast and easy to use. I really appreciate the long history of continual enhancements, the additional tools included, the outstanding non-linear analysis capabilities (especially with version 10), and the wide industry acceptance of the code. I highly recommend DyRoBeS, it pretty much does it all." - Erik Swanson, Ph.D., P.E., Founder, Xdot Engineering and Analysis, PLLC.

"I began using DyRoBeS in 2001 after 29 years of using other rotordynamics software. It soon became apparent to me that I no longer needed all those "other" codes because DyRoBeS did it all in one package. This integrated approach has saved me enormous amounts of time and energy while doing lateral and torsional rotordynamics analyses. This software, while extremely powerful, is easy to use and contains many features that allow for modeling multi-level complex rotors and support structures. There are many included utilities that reduce the amount of "grunt" work required to do accurate analyses. The plot output is report ready. This alone puts this software head and shoulders above the other packages available. Finally, Eigen Technologies has responded rapidly to my questions and readily integrated suggestions into the program. I know of no greater value in a rotordynamics package today. - Malcolm E. Leader, P.E., Turbomachinery Consultant, Applied Machinery Dynamics Co.

"I am very pleased with the entire software package from the ease of use, the expanded graphical output, and continual enhancement of analysis capabilities. DyRoBeS has become an integral element for all of our advanced oil-free, high-speed machinery Product Development and R&D efforts here at MiTi. We have found that the results from DyRoBeS compare very well with the actual dynamic characteristics of the machinery we are developing, whether small rotors of a few grams operating at speeds greater than 700,000 rpm or much larger rotors operating well above the bending critical speed" - James F. Walton II,
Vice President of Program Development, Mohawk Innovative Technology, Inc.