| Services | Goal | Centrifugal Compressor & Turbine | Centrifugal Pump | Screw Compressors | Generator |
| Piping system flow-induced acoustical pulsation control | Ensure that pressure pulsations caused by eddy shedding past dead legs does not cause vibration problems. | YES | -- | -- | -- |
| Rotordynamics - Torsional & Lateral Critical Speed Analysis | Model lateral and torsional rotordynamics to provide an understanding of shaft behavior. Evaluate design against API 617 rules. Lateral studies are important if changing shaft speed or changing impeller or bearing design. Driveline lateral studies are required per API 617 if equipment is close coupled. Driveline torsional studies are required to select couplings. BETA provides these studies, or provides audit of vendor supplied study. | YES | YES | YES (including driveline TNF Analysis) | YES |
Mechanical Analysis - Piping and Supports
- Skid and Foundation
| Ensure compressor piping support system non-resonant considers dynamic forces. Ensure whole skid and localized skid MNFs are appropriate and that skid vibration response within target guidelines. | YES | YES | YES (including compressor & separator | -- |
| Piping Flexibility (Thermal) on Skids, Laterals and Header | Ensure piping stresses and forces on equipment due to pressure, self weight, and thermal loading is within appropriate specifications and OEM limits. | YES (including surge & recycle) | YES | YES | -- |
| Small Bore Piping and Flow Induced Oscillations | Apply good practice, experience to ensure that small bore piping connections and instrumentation do not cause vibration problems. Thermowells, in particular, are examined in detail. | YES | YES | YES | -- |
Resonance Avoidance:
mechanical & acoustical | Where possible and practical locate piping shell mode natural frequencies and transverse acoustical natural frequencies away from vane passing, or pocket passing frequency. | YES | -- | YES | -- |
| Compressor Detailed Design | Design OEM replacement components. FEA stress analysis and experimental modal analysis of impellors. Design seal gas systems. | YES | YES | -- | -- |
| Instrumentation Spec. Evaluation | Ensure unit instrumentation system is capable of satisfying target monitoring and performance metrics. | YES | YES | YES | YES |