“The quality of our pumps depends on their structural design, hydraulic performance, and rotordynamic properties. XLRotor helps us optimize the dynamic properties of our pumps, resulting in the lower maintenance costs and high reliability that our customers really appreciate.”

R. Jackowicz
Senior Design Engineer
Yeomans Chicago Pumps

A Message from Dr. Brian T. Murphy, PhD, PE

I founded Rotating Machinery Analysis, Inc. (RMA) in 1994 to provide consulting services and software to the rotating machinery community. In 1995, we began marketing XLRotor, a suite of analysis tools for rotating machinery dynamics. Today, engineers around the world (including myself and my colleagues) use XLRotor to solve rotordynamics problems every day.

People inevitably put something of themselves into everything they make. With XLRotor, we have incorporated 25 years of our experience into a comprehensive product for analyzing rotating equipment. Our customers can expect reliable, versatile software that:

• Can be tailored to specific requirements
• Accepts data from other software with minimal effort
• Delivers accurate results, quickly, and
• Outputs those results in industry standard files and charts

In addition, we are committed to delivering prompt, responsive, and personalized support for any issues or questions that might arise.

- Dr. Brian T. Murphy, PhD, PE

About Dr. Murphy
Dr. Murphy received his undergraduate and graduate degrees in Mechanical Engineering from the University of Florida (1978) and Texas A&M University (1984), respectively. At Texas A&M he taught undergraduate classes, and performed research in the field of dynamics of high speed rotating machinery.

From 1984 to 1992 he worked at the Rocketdyne Division of Rockwell International, where he performed research and development for analysis and testing in the areas of structural dynamics and rotor dynamics for liquid rocket engine turbomachinery. He played key roles in the development of new advanced bearing and seal technologies for high performance rotating machines, including ultra high speed rolling element bearings, magnetic bearings, high pressure hydrostatic fluid film bearings, and high pressure pump seals. During those years he also served as part time faculty at the California State University in Northridge, CA, teaching senior level machinery dynamics.

In 1988 he was a founding partner in an engineering consulting firm. In 1992 he left Rocketdyne to devote full time to that effort, now called RSR, Incorporated. Within that organization he performed field troubleshooting of machinery vibration problems, developed and marketed computer software for rotating machinery dynamic analysis, and consulted to industry on the design and analysis of high performance rotating machines.

In 1993 he joined the staff of the Center for Electromechanics at the University of Texas at Austin, where he performs research related to high performance rotating machinery. This includes analysis and design of high performance electromechanical machinery such as motors, generators, and energy storage flywheels. Other areas of research include design, analysis and manufacturing of high performance filament wound composite structures, with emphasis on application to high speed rotors.

Dr. Murphy has authored or co-authored more than 30 papers, and contributes extensively to industry symposia and conferences. He also is a sponsor and contributor to rotordynamics.org, an online database of nearly 15,000 books, scholarly papers, and other publications dedicated to rotordynamics.