Products by Stewart Technology Associates

Single Point Moorings STA specializes in the dynamic analysis of single point moorings. CALM buoys, mooring chains and underbuoy, or submarine, hoses are modelled in the time domain with OrcaFlex. Moored tankers are also modelled in the time domain with OrcaFlex with diffraction and added mass...

Stewart Technology Associates (STA) have designed and analyzed pier project moorings, spread moorings in shallow and deep (up to 3,000 m) water. We use OrcaFlex and other in-house tools for hydrodynamic analysis and dynamic mooring analysis. We also specialize in SINGLE POINT MOORING analysis and...

We perform Naval Architectural Analysis in accordance with the requirements of USACE Safety and Health Manual, EM 385-1-1, Section 16.L. We produce bespoke Floating Service Load Charts in compliance with: Floating Service Load Chart if Manufacturer’s Floating Service Load Chart is not available, a...

We perform Crane Basic Stability Calculations. We calculate backwards stability and determine if required margins are met. The combine afloat stability of the crane-barge combination is assessed. We de-rate the manufacturer's charts for machine list and reach, both influenced by the hydrostatic...

STA LIFTBOAT is a software package used by designers and also by the US Coast Guard for evaluating liftboat design submissions. The purpose of STA LIFTBOAT is to calculate the structural response and pad reactions of liftboats in the elevated mode, subject to environmental and gravity loads. The...

We developed STA BARMOT for STA for preliminary calculation of the natural periods and RAOs (response amplitude operators) of prismatic (or roughly prismatic) marine barges. The RAOs are produced in a form suitable for direct input to OrcaFlex. Since the roll response of marine barges is...