Testimonial- Sealy Technical Services
"Sealy Technical Services, PLLC, was retained by Caillou Island Towing to design a new 76 ft line-pull tugboat. The tugboat designed was based on a previous successful design. However, the new tugboat was designed to meet the latest 46 CFR Subchapter M rules. STS scope of work included designing the entire boat including designing the structure, checking stability, designing the electrical system, and the propulsion system. STS used several specialty software to accomplish the design including the following:
Orca3D – Orca 3D was used to perform hydrostatic modeling and weight tracking. The results of the hydrostatic model were then post-processed using MS Excel to account for tank free-surface effects. The weight tracking features of Orca 3D were used to calculate the weight and CoG of the tugboat throughout the design phase. Orca 3D was also used to generate the lines plans for the vessel.
Rhino BIM – Rhino BIM was used to model the stiffeners and beams throughout the tugboat. The beams were modeled as solid elements, which were then assigned densities in the Orca 3D weight tracking in order to calculate the weight and CoG of the tugboat.
Sealy Technical Services, PLLC, was retained by Gulf Copper Drydock & Rig Repair to design a new drydock for their facility in Galveston, TX. Gulf Copper operates a 15,000 LT drydock in the same shipyard, but the cost of docking vessels in the 200 ft length range was cost prohibitive based on the size of the drydock. The new drydock, DD 4500, was designed using pontoon sections from a previous drydock. The wingwalls had been removed, and the pontoons were used as deck barges in the shipyard for years.
STS scope of work included designing new wingwalls to install onto the pontoon sections and to design a new pontoon section to link the two pontoon sections together. STS used several specialty software to accomplish the design including the following:
Orca3D – Orca 3D was used to perform hydrostatic modeling. The results of the model were then postprocessed using MS Excel to account for tank free-surface effects as well as to calculate the pressure differential on the drydock shell and bulkheads
RhinoBIM – Rhino BIM was used to model the stiffeners and beams throughout the new wingwall sections. Using RhinoBIM allowed our design team to quickly model and create drawings of the stiffeners".