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Stress Alert Hull Stress Monitoring System


The Strainstall 'StressAlert ll' system continuously measures hull stress using deck-mounted Long Baseline Strain Gauges and a bow accelerometer, and provides:

  • Real-time displays of bending moments
  • Alarms when unsafe levels of stress are experienced
  • Detection of bow slamming
  • Long-term monitor of fatigue during the vessel's lifetime
  • Additional sensors (bow pressure, heave/pitch/roll) can be fitted to meet more advanced requirements
  • It can be used as an aid to safe sea-keeping, and as a check on the calculations of the Loading Computer
  • An output is available for connection to Voyage Data Recorders (VDR's) and provides valuable safety-related data for reference purposes

Strainstall designed the first practical Hull Stress Monitoring System, and 'StressAlert ll' is in use world-wide with major ship operators, installations having been approved by major certifying authorities (DNV, Lloyd's Register, ABS).

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