Guil Cornejo

Engineering of predictive and protective vibration solutions for turbines and power-train systems.

Guillermo "Guil" Cornejo is president of RPM & Predictive Engineering Inc., a California, USA, corporation. He has 20 years of factory and worldwide field experience solving turbomachinery/powertrain vibration problems in industrial and marine applications. The core business of RPM & PREDICTIVE ENGINEERING is analysis-resolution, troubleshooting and timely low-cost solution of multi-million dollar turbine/electric driven power-trains enduring mechanical or process induced vibration malfunctions.

Mr. Cornejo was Program Manager of Solar Turbine's Power Systems Vibration Laboratory, San Diego, California from 1991 until 1999. Altogether, his focused and competent problem solving experience in power-train vibration-process health spans over 20 years. This includes 18 years at Solar Turbines in development, analysis, troubleshooting and deciphering complex power-train vibration problems at both the factory and worldwide customer sites; 2 years at Westinghouse Electric Corp., Sunnyvale, California in design, analysis and troubleshooting of submarine steam-turbine gearing power-train noise and vibration. These qualifications were supplemented with experience at Chevron, San Francisco/Richmond, in reciprocating-compressor
vibration/noise and in  refinery piping design. Also at Mare Island Naval Shipyard, Submarine Noise Division, Vallejo, California in the development of balancing optimization
software programs to minimize submarine noise and vibration. 

At Solar's Power Systems Vibration Laboratory, his responsibilities included development, analysis, troubleshooting/solution and health verification of high speed turbine rotor-power-train packages such as turbogenerators , turbopumps , electric-motor driven centrifugal compressors and turbocompressors trains (centrifugal & reciprocal). This work included a wide spectrum of experience with driven components which include generators such as Ideal/EM, Kato, GEC-Alsthon, Brush, Hollec/HMA, GE and Siemens; also centrifugal compressors such as Demag, Dresser-Rand, Solar, Atlas-Copco, Nuovo Pignone, York (Frick/Reco); also reciprocating compressors such as Ariel, IR; also high pressure pumps such as Bingham, IR, Byron Jackson; high speed gearing such as Lufkin/Westech, Allen/RR , Philadelphia Gear, Solar, clutch systems such as SSS/synchronous and PT-Tech/slip; also steam-turbines such as Murray and Westinghouse.

Mr. Cornejo's responsibilities also included update of vendor driven equipment specifications and compliance as well as application/testing to US and European standards such as API, DNV, ISO and vibration-electrical system EMC.

This combination of experience has led Mr. Cornejo to a tenet that the healthy vibration behavior of a modern turbomachinery power-train system is the combined engineered outcome of it's rotor-lateral/torsional dynamics, structural-support system and process control system. Consequently, the design/analysis/troubleshooting of a power-train calls for a threefold approach. It includes steady-state, temporary and transient behavior evaluation of turbo-engine/power-turbine and driven-train rotors, including gearing shaft and mesh and the relationship of this evaluation to process load-demand and package structural vibration response. Along with this tenet came the realization that the major impediment an analyst faces when troubleshooting vibration and process
signals is the capture and management of fast transient dynamic events. 

Mr. Cornejo is also the author/coauthor of several basic and problem resolution papers presented at ASME design/power conferences, Texas A&M Turbomachinery Symposium and the International Vibration Institute.

Mr. Cornejo holds a patent for the Hydrodynamic Bearing Orbit Simulator.

Mr. Cornejo graduated with a BS degree in Mechanical Engineering (1975) from The University of California at Davis. His graduate credentials from Stanford University include a MS degree in Mechanical Design (1977) and a terminal Degree of Engineer (1981) in vibration. His hobbies include sport salt water fishing and fruit tree gardening. He is a member of the US Coast Guard Auxiliary and of the Vibration Institute.

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