Mechanical Reliability & Fatigue Resolution
Stop the cycle of repetitive failure through forensic diagnosis.
When machinery systems suffer from chronic fatigue cracking or pulsation instability, the solution is not a "patch repair." The governing cause is often a dynamic mechanism—resonance, cyclic stress ranges, or acoustic interaction—that requires a consultancy-led diagnostic framework.
Call 01908 643 433 to consult with a specialist engineer.
For positive displacement machinery systems, we provide specialist vibration control strictly aligned with API RP 688.
- Acoustic Interaction: Identifying how fluid pulsations couple with structural modes to drive excessive vibration.
- System Compliance Audits: Verifying that pipework, supports, and machinery skids meet industry-specific vibration criteria.
- Risk Mitigation: Engineering modifications that shift acoustic frequencies and remove the risk of pulsation-driven fatigue.
We bridge the gap between site-measured data and structural reality using a Measured-to-Modeled approach.
- Hot-Spot Stress Analysis: Using specialized solvers to identify localized stress concentrations at weld toes that sensors cannot reach.
- Eurocode 3 Compliance: Categorising weld details to determine fatigue life under real operating cycles.
- Joint Optimization: Engineering modifications to supports (EN 1993-1-8) to redistribute load paths and reduce cyclic stress ranges.
Case Study: Fatigue Life Extension
Resonant Avoidance & Stress Reduction
A critical piping support frame was suffering from recurring fatigue fractures on a 120-day cycle. Our forensic diagnosis identified a structural resonance at 48.57Hz.
By engineering a Frequency Steering arrangement, we shifted the natural frequency to 62Hz. This resulted in a 92% reduction in cyclic stress. The asset has now operated for over three years with zero recorded fractures.