Pipework Vibration Assessment
Pipework vibration assessments are essential as all piping systems, small-bore connections (SBC), static equipment and structures are subject to vibration and fatigue failure risks.
Fatigue failures can occur during both normal and transient operating conditions.
To mitigate integrity risks, piping vibration assessments are performed during the design phase, with high-risk locations tested again during operations. These assessments follow the Energy Institute (EI) AVIFF Guidelines alongside other recognised methodologies and form a key part of an Asset Integrity Management (AIM)
system.
The Energy Institute AVIFF Guideline is the leading framework for identifying and resolving piping vibration risks. AVT Reliability BV (formerly Van Geffen Reliability) brings extensive expertise in pipe stress analysis, dynamic vibration analysis, transient flow and related design studies. Our unique approach is founded on decades
of field experience troubleshooting piping vibration issues, an advantage unmatched in the design industry.
Our Solution
AVT Reliability has more than 50 years of combined experience in piping vibration, including
the assessment of large-scale piping projects. We specialise in managing fatigue failure risks
throughout the entire asset life cycle.
Our services include:
- Piping vibration and fatigue assessments across all production systems
- On-site investigation, monitoring and troubleshooting
- Advanced engineering (FEA)
- Pipe stress, flexibility and thermal analysis
- Anti-vibration products – Easy-Brace, DVA, Visco-Elastic Dampers
System Response Assessment
- Flow-induced vibration (FIV)
- Turbulent flow (FIT)
- Hydraulic and gas transients (including water hammer)
- Flow-induced pulsation (FIP, FLIP)
- Acoustic-induced vibration (AIV)
- Multiphase and slug flow
Our Solution
AVT Reliability has over 50 years of combined experience in piping vibration and fatigue risk
management across full asset lifecycles.
Our services include:
- Piping vibration and fatigue assessments
- On-site investigation and troubleshooting
- Advanced engineering (FEA)
- Pipe stress, flexibility and thermal analysis
- Anti-vibration solutions: Easy-Brace, DVA, Visco-Elastic Dampers
System Response Assessment
- Flow-induced vibration (FIV)
- Turbulent flow (FIT)
- Hydraulic & gas transients
- Flow-induced pulsation (FIP / FLIP)
- Acoustic-induced vibration (AIV)
- Multiphase & slug flow
Standard Motion Amplification Survey
This service includes motion amplification data capture, processing and video presentation.
Commonly used for:
- Machinery & structure vibration troubleshooting
- New machine commissioning & design validation
- Startup & shutdown transient investigations
- Annual pipework vibration applications including SBCs
Enhanced Survey
This service combines motion amplification with additional diagnostic tools and techniques.
Commonly used for:
- Rotating equipment with high operational vibration
- Fatigue-related cracking in structures or machine supports
- Piping systems exceeding EI vibration limits or with inadequate supports
Standard Motion Amplification Survey
Includes data capture, processing and full video output.
- Troubleshooting structural vibration issues
- Commissioning tests & validation
- Startup / shutdown transient assessments
- Pipework vibration checks including SBCs
Enhanced Survey
Combines motion amplification with additional diagnostic tools.
- High-vibration rotating equipment
- Fatigue cracking in structures & supports
- Piping systems above EI recommended vibration limits

Preliminary Measurements
To reach the correct solution, the first step is gaining a clear understanding of the source of vibration, including
excitation frequency, amplitude levels, forces, impacts and dynamic response. Almost all studies begin with an
on-site survey supported by dynamic measurements such as vibration, pressure, temperature or strain gauge
readings. Static measurements may also be taken where required.

Additional Measurements
Depending on the problem and asset condition, additional measurements may be taken. These include excitation
measurements to determine natural frequencies and sensitivities, ODS or Modal analysis, and motion
amplification surveys for visualising complex vibration behaviour.

Solutions & Actions
Using the collected data, often supported by an FEA study, the most optimal solution can then be developed. In
many cases, temporary modifications are applied to verify the effectiveness of the proposed solution before full
implementation, ensuring confidence and accuracy in the corrective action.
Preliminary Measurements
Studies begin with on-site surveys and dynamic measurements to identify vibration sources, frequencies and system response.
Additional Measurements
Additional techniques such as excitation testing, ODS/Modal analysis and motion amplification are used when required.
Solutions & Actions
Data-driven solutions are developed and validated, sometimes with temporary modifications to confirm effectiveness.

Local service backed by global support
- 24 hours a day, 7 days a week, 365 days a year
- Clear detailed reporting with actionable insights
- Expert support and consultation

Local service backed by global support
- 24 hours a day, 7 days a week, 365 days a year
- Clear detailed reporting with actionable insights
- Expert support and consultation

