Vibration Analysis and Monitoring

There are many sources of vibration in the industrial environment. Excessive vibrations can lead to formation of cracks, wear of bearings, loosening of connections, structural and mechanical failures, malfunction of electronic equipment and added costs to maintenance. Understanding the sources and effects of the vibration allows effective mitigation techniques to be applied. Our experience, combined with failure analysis and root cause methods have been used to provide solutions to numerous vibration related problems.

The LPI team has served as consultants to many projects related to vibrations, fluid-solid interactions, wind engineering, fatigue, noise transmission and control to federal, state and city agencies, national laboratories, and industry.


LPI provides: diagnostics of the problem, stress and failure analysis, vibration and strain gage testing, economical solutions to industries' challenging problems. Specific capabilities include:

Rotating Equipment

  • Measure and analyze vibrations of wastewater pumps, centrifuges, chillers, fans, electric motors, diesel generators, rail axles
  • Identify causes of excessive vibrations
  • Recommend solutions to attenuate vibrations

Flow Induced Vibrations

  • Develop programs to monitor pressure and piping dynamics
  • Develop acoustic models to predict dynamic pressures
  • Perform root cause analysis to isolate vibration sources
  • Develop structural model to demonstrate piping motions


  • Perform vibration measurements and analysis on elevated platforms, buildings, floors, bridges
  • Perform finite element analysis using ANSYS software for a variety of structures
  • Develop procedures for structural modifications to reduce excessive vibrations and to increase fatigue life

Transportation Systems

  • Measure and analyze vibrations of buses, trains, trucks, ships, elevators, emergency vehicles, people movers
  • Perform fatigue and Fitness For Service analysis
  • Provide solutions to reduce vibrations and to increase fatigue life

Data Collection

  • Acquire multi-channel vibration data using accelerometers, strain gages, non-contact LVDT probes, laser devices, pressure transducers

Fitness for Service in Vibratory Environment

  • Materials that sustained damage due to fatigue cracking or/and corrosion
  • Structures that require continued use
  • Adequacy of flawed structures for continued use
  • Projections of useful life for safe and reliable operations

Failure Analysis

  • Bearings
  • Equipment, machinery and structures in nuclear and fossil power plants
  • Commercial sites and industrial plants
  • Industrial cranes, steam and gas turbines, refinery equipment
  • Below ground pipelines, pressure vessels, medical devices, electronic equipment

For more information, please contact Amaya Bleiman by email at, or by phone at (646) 763-6736.