Troubleshooting Rotodynamic Pump Vibration Issues - 1 Part Webinar recording | May 16, 2023

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Troubleshooting Rotodynamic Pump 

Vibration Issues

Date: May 16, 2023
Time: 1pm ET
PDH Credits: 1


This webinar presents a high-level step-by-step description of troubleshooting techniques to successfully address vibration issues on rotodynamic pumps.  The main focus is on centrifugal pumps of all types regarding their typical vibration issues such as imbalance, misalignment, rub, looseness, structural resonance, rotodynamic resonance, thermal loading issues, piping strain, flow-induced sub-synchronous vibration, internal recirculation, rotating stall, shaft failure, etc.

Learning Objectives

During this webinar, participants will learn:

  • How to attack a pump vibration problem
  • Identify the instrumentation and the test methods required to uncover the root cause of the vibration issue.
  • How to analyze the data using time wave form, frequency spectral analysis (FFT), continuous monitoring, modal analysis (bump testing), motion magnification video (MMV), and operating deflection shape (ODS).
  • Symptoms such as imbalance, misalignment, structural resonances, acoustic issues, torsional natural frequencies, cavitation, rotating stall, rubbing, and looseness are discussed.
  • Solution methods using finite element analysis (FEA) are discussed along with a detailed case study.


Robert (Bob) Sayer, P.E.

Past President

Vibration Institute

  • 45 years of experience in mechanical vibration and structural dynamics
  • BSCE, Ohio University, MSIE, Cleveland State University, MSCE, Purdue University
  • Recipient, Jack Frarey Medal for Excellence in the Field of Vibration Analysis
  • Instructor, Vibration Institute “Advanced Vibration Control” training
  • Instructor, Vibration Institute “Vibration Diagnostics Using Case Studies” course
  • Author of Two Chapters, “The Simplified Handbook of Vibration Analysis, Part 2”
  • Vice-Chairman, HI/ANSI 14.5.1, Foundations for Rotodynamic Pumps

Paul Boyadjis

Director of Structural Analysis

Mechanical Solutions, Inc.

  • Employed by Mechanical Solutions, Inc. since 2002
  • Vice Chair, HI Pump Vibration Committee
  • Member of HI Dynamics of Pumping Machinery Committee
  • Lecturer on Pump Vibration at the Texas A&M Pump Symposium
  • M.S. Cum Laude Lehigh University
  • Over 30 years experience with centrifugal pumps
  • Co-Author Pump Mechanical & Dynamic Behavior Chapter, McGraw-Hill Pump Handbook

Jason Coppola

Project Engineer III

Mechanical Solutions, Inc.

  • Employed by Mechanical Solutions, Inc. since 2010
  • Extensive experience with FEA software such as Creo Parametric or Creo Elements/Pro for solid modeling or CAD, CAM, CAE, and associative 3D modeling application, ANSYS Multiphysics, and ANSYS Workbench
  • Extensive experience with advanced field testing,  troubleshooting, and data acquisition methods, including the use of accelerometers, strain gauges, microphones, and proximity probes
  • Active Committee Member of HI Vibration Committee since 2020
  • BS Mechanical Engineering at The College of New Jersey, Cum Laude
  • 12 years of experience with various types of water and wastewater pumps

Registration Fees

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HI Member Type 1-Part Live Webinar 2-Part Live Webinar 3-Part Live Webinar 4-Part Live Webinar
Associate Member$89.25$119.25$149.25$179.25
Standards Partner$89.25$119.25$149.25$179.25
Training Partner$89.25$119.25$149.25$179.25
Industry Partner$113.05$151.05$189.05$227.05
Academic Partner$113.05$151.05$189.05$227.05

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PDH Credits

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Pump Systems Matter is a board-approved continuing education provider for the Florida Board of Professional Engineers: License # CEA361.

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