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 Expert  724158

Expert in Machinery Vibration, Condition Monitoring, Testing

Available for your Consulting and Expert Witness Needs

Illinois (IL)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert spent many years working with vibration issues in machinery. His experience ranges from engineering research and design of low noise and vibration machinery to practical vibration analysis and control of machinery installed in the field. The success in resolution of various vibration issues is coming not only from experience and understanding the principles of machine vibration but also from close familiarity with machine component interaction, principles of operation, and application of various types of machinery.

Expert's capabilities:

* Vibration testing and diagnostics * Multi-channel synchronous vibration data acquisition and analysis * Field and factory acceptance testing and troubleshooting * Vibration spectrum analysis and machine fault diagnostics – imbalance, misalignment, looseness, bearing faults, etc. * Modal Analysis – natural frequencies, mode shapes, detuning, modeling of modified structures * Operating Deflection Shapes analysis – visualization of machine movement at resonance condition or due to a mechanical fault * Diagnostics of vibration problems due to abnormal machine operation – out of range operation, cavitation, overload, process media interaction, etc.

* Vibration Control Solutions * Precision machine balance and alignment * Structural detuning and damping * Vibration Isolation – engineering and design * Dynamic Vibration Absorbers – passive vibration suppression devices

* Design and Analysis * Finite Element Analysis (FEA) – modeling and analysis of machine structures for natural frequencies, mode shapes, and response to periodic and transient excitation forces * Rotor Dynamic Analysis – analysis of rotor lateral and torsional critical speeds, mode shapes and rotor torsional and lateral response functions * Design and analysis of structural modifications and machine design improvements to alleviate high vibration


machine vibration


machine vibration analysis




vibration testing

Expert is experienced in many areas of mechanical engineering. These areas include design and analysis, machine shop and assembly technologies, product testing and certification, third party approvals, special component procurement, research and development, equipment start-up and field troubleshooting, failure analysis, ISO 9000 quality system, expert witnessing and other areas. This experience is coming from expert's work for many years as manager and director of engineering of a manufacturing company. The primary product was custom engineered pumps and electric motors.

mechanical engineering

Expert has extensive background in pump engineering. He is proficient in the areas of pump design, manufacturing, application and operation. More specifically, the range of expertize includes pump operation in a pumping system, multiple pump operation, variable speed pump applications, hydraulic performance, pump testing (both at the factory and in the field), effects of piping hydraulics, out of range operation, system design, and installation issues. One important area of expertize is pump vibration. Pump vibration analysis and troubleshooting techniques developed by the expert over the years allow quick and accurate diagnostics of a vibration issue whether it has mechanical, hydraulic, or structural nature.



pump testing


pump vibration


condition monitoring

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Chicago, Illinois;  Rockford, Illinois;  Aurora, Illinois;  Naperville, Illinois;  Joliet, Illinois;  Elgin, Illinois;  South Bend, Indiana;  Gary, Indiana;  Milwaukee, Wisconsin;  and Madison, Wisconsin.

Often requested
with this expert:

Vibration, Environmental Tests
Sound, Vibration, and Dynamics
Dynamics, Vibrations, and Math
Mechanical Noise/ Vibration

Year   Degree   Subject   Institution  
1980   MS   Mechanical Engineering   Moscow Technical University (Power Engineering Institute)  

Work History:
Years   Employer   Title  

2006 to






1991 to 2006


Yeomans Chicago Corp.


Director - Engineering


1980 to 1990




Senior Research Engineer


Career Accomplishments:

Hydraulic Institute


P.E. (mechanical) in the state of Illinois since 1994

Publications and Patents Summary

He has 2 US patents

Selected Publications and Publishers  
 - Pumps & Systems Magazine  

Consulting Services:
Selected Consulting Examples:
  • A 2000 Hp centrifugal pump experienced out of specification vibration levels after installation. It was established by preliminary tests that there was a resonance condition excited by the vane passing frequency. Subsequent modal analysis revealed that the pump supporting frame made of steel beams had insufficient stiffness and was responsible for a number of mode shapes that had been excited within the pump operating speed range. After a computer simulation was performed a solution was proposed and implemented to modify the support by adding concrete around the beams. The solution has drastically reduced vibration by eliminating the resonance condition.
  • To reduce resonance vibration in a large motor a dynamic vibration absorber was proposed as a solution. Additional research was necessary as the motor was operating with variable speed and the absorber had to be designed to accommodate the motor's speed range. The resulting design allowed independent tuning of all absorber parameters to achieve the desirable dynamic properties.
Recent Client Requests:
  • Harmonic vibration expert for consulting on Analyze excessive noise and vibration in residentail mechanical system.
  • Expert in vibration diagnostics for consulting on centrifuge and coupled structures.
  • Expert in pump station vibration for consulting on pump station vibration cause and remedies.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
Has been called as expert witness for a deposition in a case related to product performance due to a vibration problem
Recent Litigation Client Requests:
  • Random vibration expert for consulting on random vibration profiles.
  • Expert for litigation involving gear box vibration insurance claim.
  • Expert in vibrations to read through vibration sensor reports and decipher their validity.
  • Expert in internal combustion engines for consulting on crankshaft rotary torsional vibration.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Language Skills:
Foreign Language   Description
Russian   Fluent and proficient in all aspects

Additional Skills and Services:

Training course: Vibration in Rotating Machinery - Measurement, Diagnostics, and Troubleshooting

Supplier and Vendor Location and Selection

Selection and Procurement of instrumentation for vibration testing and analysis; Locating vendors and defining specifications for condition monitoring systems; Extensive work with suppliers in areas of bearing selection for custom rotating machinery


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