RITEC-Vibration-Institute-Middle-East-Conference

Keynote Speakers

The Organizing Committee of the Vibration Institute Middle East Conference, Sharm El-Sheikh, Egypt, March 12-14, 2018 is pleased to announce the Keynote Speakers for this widely anticipated conference.

The selected Keynote Speakers come from a wide background from industry and academia. Their presentations promise to enrich the conference.

» Robert Sayer, P.E.

Mr. Sayer shall be presenting a Keynote talk on:

“Vibration Analysis of Centrifugal Fans”.

Discussion of the dynamic forces that fans produce as part of normal operation and abnormal operation (stall, surge and vortex shedding). Test procedures to identify these forces. Rotor Dynamic issues of SWSI fans. Modal properties of fan impellers. Foundation design requirements.

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Robert Sayer, PE is the President of the Vibration Institute and owner of Applied Structural Dynamics (Westerville, Ohio). He has over forty years of experience as a mechanical and structural engineering consultant to a wide range of industries including pulp & paper, mining & metals, fossil-fuel & nuclear power generation, petrochemical, food processing, glass manufacturing, and aerospace & defense. Mr. Sayer provides analytical and experimental dynamic analysis of mechanical equipment for design projects, structural and mechanical failure studies, and process reliability and efficiency studies. Mr. Sayer holds engineering degrees from Ohio University (BSCE), Cleveland State University (MSIE), and Purdue University (MSCE). He had the honor and fortune of collaborating with the late Art Crawford, a pioneer of vibration analysis, on numerous projects. Mr. Sayer is a regular contributor at technical conferences and has published over 50 technical articles and co-authored 2 chapters in "The Simplified Handbook of Vibration Analysis"

» Prof. Paolo Pennacchi

Prof. Pennacchi shall be presenting a Keynote talk on:

“Dynamic Coefficients of Fluid-Film Bearings and Seals in Rotating Machines: Models and Experimental Tests”.

An overview on the accurate modeling of rotating machines. Since good accuracy has been reached since decades for the shafts, while dynamic coefficients of fluid-film bearings and of labyrinth/brush seals are still roughly evaluated in some cases, this last topic is the focus of this presentation. This keynote will deal not only with sophisticated modeling of bearings (TEHD/pin stiffness, etc.), of labyrinth seals (improved bulk flow methods) and of brush seals (equivalent stiffness) but also on experimental test on special test rigs (for TPJB and Labyrinth seals) to validate the models and on experimental evidences of the effects of brush seals on the stability of machines (spiral vibrations / limit cycles).

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Paolo Pennacchi is full professor of applied mechanics at Politecnico di Milano, Italy, where he also obtained his Ph.D. in 1997. Main research activities are in rotor dynamics and its related topics (dynamics of machines employed for power generation and traction systems for high-speed trains, bearings, seals), in diagnostics and identification of rotating machines and mechanical systems in general. He is author of more than 300 scientific publications (books, journals and conferences), Associate editor of Mechanical Systems and Signal Processing, chairman of IFToMM Technical Committee on rotordynamics.

» Prof. Aly El-Shafei

Prof. El-Shafei shall be presenting a Keynote talk on:

“Machine Diagnosis as a Standardized Approach”.

This keynote talk shall present the approach adopted by ISO in the ISO 13373 series. A step-by-step flow chart approach with fault tables and examples has been adopted in the ISO 13373 series. The keynote talk discusses the diagnosis of common faults in rotating machines including installation faults and bearing faults. Diagnosis of particular machines including gas and steam turbines, fans and blowers, hydraulic machines and electric motors are discussed. The success of this standardized diagnostic approach in field applications is illustrated through many field examples.

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Dr. Aly El-Shafei is a Certified Vibration Analyst, Category IV. He holds a Ph.D. from the Massachusetts Institute of Technology (MIT) and is a world renowned expert on vibration analysis, rotordynamics and machinery diagnostics. In addition to serving as Managing Director at RITEC, Dr. El-Shafei is also a Professor of Vibration Engineering at Cairo University, Egypt. Prof. El-Shafei chairs the ISO working group ISO/TC108/SC2/WG10 responsible for developing international standards on machinery vibration diagnostics, and serves on the IFToMM Scientific Committee on Rotordynamics, the Vibration Institute Training Committee and the IMechE Scientific Committee on Vibrations in Rotating Machinery. Dr. El-Shafei is known as a seasoned diagnostics engineer and has solved many chronic problems worldwide. He is also known worldwide for his work on Squeeze Film Dampers, and developing of new technology for the control of rotating machinery vibration. Dr. El-Shafei has received 3 US patents and has published more than 80 papers on rotordynamics and machinery diagnostics.

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Keynote Speakers

» Robert Sayer, P.E.

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» Prof. Paolo Pennacchi

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» Prof. Aly El-Shafei

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