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gt;gt; designing something like the HULL OF A SHIP CAN BE AN EXPENSIVE PROCESS. SO HOW DO YOU RIGOROUSLY TEST OUT A DESIGN BEFORE YOU EVEN BUILD IT?.

A unique research program at the UNIVERSITY OF IOWA MAKES THAT POSSIBLE, USING SOPHISTICATED SOFTWARE, MODEL SHIPS, AND AN ENORMOUS INDOOR POOL. PROFESSOR FRED STERN LEADS THE.

University of iowa’s SHIPHYDRODYNAMICS PROGRAM, THE HOME OF THIS HIGHTECH FACILITY. gt;gt; THESE ARE CALLED WAVE BASINS. YOU CAN SEE THE WAVEMAKERS AT THE FAR END HERE.

They’re plunger type. THEY GO UP AND DOWN. THEY GENERATE EITHER REGULAR OR IRREGULAR WAVES IN THE BASIN. THE NEXT PART FOR US, THEN, IS THE CARRIAGE.

This is a customdesigned CARRIAGE. IT FOLLOWS THE MODEL. THERE’S TARGETS ON THE MODEL THAT THE CAMERAS AND THE TRACKING SYSTEM USE.

Ours is unique insofar as it’s DESIGNED SPECIFICALLY TO CARRY MEASUREMENT SYSTEMS TO MEASURE THE LOCAL FLOWS AROUND THE FREERUNNING MODELS. gt;gt; BELIEVE IT OR NOT, THIS.

Nearly $5 million facility was DESIGNED AND BUILT PRIMARILY FOR THE PURPOSE OF VALIDATING OR TESTING COMPUTER CODE. THAT CODE, CFDSHIPIOWA, IS A SIMULATION SOFTWARE DEVELOPED AT.

The university of iowa for the OFFICE OF NAVAL RESEARCH. IN THE PAST, STERN AND HIS RESEARCH TEAM VALIDATED THE CODE BY RUNNING THEIR MODELS IN A 300FOOTLONG TOWING TANK, BUT.

How to Install Hull Liner with Foam

Eric: this tutorial is brought to you by sailrite. visit sailrite for all your project supplies, tools, and instructions. In this tutorial tutorial, well be using a few vinyl fabric combinations in gluing foam to the sewn assembly to make a hull liner with foam. Then we will demonstrate how to install it in an aft cabin of a powerboat. Brian, the owner of this 1982 Regal Ambassador 245XL will be heading up our DIY tutorial on how to install hull liner with a foam backing. He has removed the old headliner/hull liner and cleaned the fiberglass surface area with.

A 3m adhesive cleaner applied to a rag. brian wants the hull liner to simulate the upholstered design that we carried throughout the boats exterior seating. To accomplish that, we will use the pattern we made for the seating area as the template for this hull liner. Brian will explain the process from inside the aft cabin. Okay were here in the coffin, I mean the aft cabin. (Brian laughs) Were here in the aft cabin and what were going to do is were going to carry the design from.

The outside of the boat to the inside. were going to take this back wall of the aft cabin and were going to use the same channeling fabric, blue and tan fabric combination that we did on the exterior seating. So what were going to do is take our general pattern that was used for the seats and we want to lay that up on the wall in comparison and just kind of get a general feel for where we need to add to make the panel the right size. Eric: Back on the boat our first cushion was patterned with Dura Skrim Pattern Material,.

And we drew the design we wanted to follow for all the upholstery a tan then blue then channeling section of fabric for the top plate. We will use that pattern to mimic the decorative design so it is consistent throughout the boats upholstery cushions, seats, and even for this custom hull liner project. Okay, now what were going to do is were going to mark on our pattern the changes that were going to be making. So the edge of the wall will be back here, the edge of the.

Front wall will be up here, and well just make those marks and then were going to add 5 to the pattern here and then were going to add 7 at the top. There is a window thats going to go in here, and the window is going to split the design. The way were going to lay that out itll be kind of right in the middle. I think itll look nice there. Now our pattern isnt quite as long as what it is; you can see were going to be adding some material here. What Ive done is Ive drawn a line to indicate the edge here, and then Im.

Going to draw an arrow to add, and im going to mark that thats the edge. we are going to make this panel just slightly oversized because were going to lay it into the edges and cut it. There are trim boards that will go in the corner from the original. Were just going to recover those trim boards and put them in place. Eric: Since we wanted this hull liner to simulate our upholstered design that we carried throughout the boats exterior seating, we will combine two different colored vinyl fabrics with our.

Vinyl channeling fabric. those sections will be patterned and sewn together. we will not show how thats done in this tutorial. But if you want to see the complete process, just look up this tutorial to see how we did it. After the vinyl fabric is sewn together (if required), its time to glue the Polyurethane Foam with Fabric Backing to the vinyl fabric. Thats coming up next. Im going to use the line that I can feel in the seam here from the difference in the.

Channeling to the vinyl to make my pattern, and i have the fabric side up of this. im going to glue the side thats just plain foam to the vinyl. Eric: Since the channeling fabric already has a polyester backing attached, we only need to glue the Polyurethane Foam with Fabric Backing to the vinyl fabric that does not have a polyester backing. So Cindi is marking where that transition is on the foam side of the Polyurethane Foam with Fabric Backing. She has cut it along that line, and now well.

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