Intact Stability Analysis

Most vessels need some form of intact stability analysis to satisfy regulatory requirements.  The exact analysis and requirements depend on the flag of the vessel, vessel mission, and vessel construction type.  Generally, the analysis follows a routine procedure:

  1. Regulatory research – determine the exact set of stability criteria
  2. Hydrostatic modeling
  3. Maximum VCG analysis
  4. Develop loading conditions
  5. Check loading conditions
  6. Document results in analysis report

The main deliverable from this analysis is a maximum VCG graph.  It plots the limit of vessel vertical center of gravity (VCG) against a range of displacements.  If the vessel VCG remains under those limits, it satisfies all intact stability criteria.

To ensure reliability, DMS goes one step further.  We check the individual loading conditions against the stability criteria.  Thanks to the automation of Maxsurf Stability, this is a fairly quick process.

FREE Loading Condition Spreadsheet

DMS also cares about delivering practical utility to the vessel crew.  Ultimately, stability analysis should be a tool for the vessel master to ensure safe operation.  The best tools are easy to use and convenient.  Along with the stability analysis, we also provide a free loading condition spreadsheet.  This incorporates your custom tank properties and MaxVCG curves.  It allows you to easily develop custom loading conditions for yourself. 

Plan your own burn-ballast sequence for each voyage.  Safely check transfers between tanks.  Other firms may charge you tens of thousands for a fancy program that achieves the same functionality.  But at DMS, we think the knowledge is more important than the appearance.  That is why we automatically include the loading condition spreadsheet with each update that includes a trim and stability booklet.  Want to learn more about your free loading condition spreadsheet?  We’re happy to talk.

The fine print:

  1. Loading condition spreadsheet is NOT a substitute for a class approved loading computer.  It is only a convenient tool for the vessel master.
  2. Stability update requires a full trim and stability booklet to provide a free loading condition spreadsheet.  Stability letters and stability assessments do not receive a free loading condition spreadsheet.

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