Services
- Static Equipment & Structures (Piping Vibration & Fatigue)
- Acoustic Fatigue Assessment for Blowdown Systems
- Acoustic-Induced Vibration (AIV) Analysis
- Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD)
- Flow-Induced Turbulence (FIT) Analysis
- Flow-Induced Vibration (FIV) Analysis
- Multiphase and Slug Flow Analysis
- Pipe Stress Analysis
- Piping Vibration and Integrity Assessment
- Review & Design Support Services
- Small-Bore Connections (SBC) Assessment
- Structural Vibration and Dynamic Design Analysis
- Subsea Piping Vibration
- Thermal Striping
- Tube Failure Analysis
- Veridian AM
- Veridian VS
- Vibration Inspection Program
- Water Hammer Analysis
- Machinery Analysis
- Bottle Sizing Service
- Compressor Package Engineering
- Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD)
- Foundation Design and Dynamic Analysis
- Fuel Gas Compressor Piping Transient Analysis
- Lateral Vibration Analysis
- Pipe Stress Analysis
- Pulsation & Mechanical Analysis: Reciprocating Compressor
- Pulsation & Mechanical Analysis: Reciprocating Pump
- Pulsation & Mechanical Analysis: Screw Compressor
- Pump RCF Analysis
- Review & Design Support Services
- Shell Transverse Acoustical (STA) Analysis
- Skid Design and Analysis
- Surge Control Design for Centrifugal Compressor Systems
- Torsional Vibration Analysis (TVA)
- Field Engineering & Troubleshooting
- Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD)
- Human Vibration
- Motion Amplification Vibration Analysis
- Noise Troubleshooting
- Performance Assessment (Thermodynamic)
- PostPro – field data processing and analysis
- Structural Vibration Troubleshooting
- Thermal Striping
- Troubleshooting, Root Cause Analysis (RCA)
- Veridian iDAC
- Vibration Inspection Program
Torsional Vibration Field Check
to Confirm Torsional Natural Frequencies and Vibration Amplitudes
Often torsional vibration problems go undetected until a failed component occurs. And when a torsional failure occurs, the consequences are significant given the costs and time to replace the crankshaft.
 |
 |
|
| Examples of damage caused by torsional failures. | ||
1 Applications
 |
 |
 |
 |
Verifying the torsional natural frequencies (TNFs) and vibration amplitudes is a recommended practice for many applications, such as:
- Any new driver-compressor package, or when changes are made to the compressor
- Custom reciprocating and screw compressors
- Large centrifugal compressors
- Challenging (high risk) torsional designs which may be resonant at certain conditions
- When torsional to lateral vibration is suspected (this interaction can cause complex vibration problems for the compressor system)
2 Scope
- Wood measures the torsional vibration and compares it to the expected values using diagnostic tools including strain gauge with wireless telemetry, shaft encoder, and laser torsiometer
- Measure torsional natural frequencies and torsional responses
- Estimate damping.
- Directly measure torsional stresses with strain gauge system
- Measure strain directly to indicate torque reversals - especially important where gearboxes are involved
- Apply integrated approach using torsional field measurements as well as the design models to assess risk to drivetrain
A torsional field check can be added to Wood’s standard Vibration Inspection Program
3 Wood Advantages
- Independent consulting advice
- Extensive torsional vibration experience, both field and design capabilities
- Proprietary software and analysis tools to improve the accuracy and analysis
- Field engineers experienced in pulsation and mechanical design, including torsional to lateral interaction
Torsional vibration is difficult to measure and requires significant experience. Only specialty firms such as Wood have the methodology and tools to properly measure torsional vibration and develop recommendations to avoid resonance.
4 Related Services
5 Keywords
- Torsional vibration measurements
- Torsional field check
Free webinar
Understand the top three vibration threats in your piping system and how to tame them. Register now
