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Hi Folks, I am doing a hand calculation to find the percentage loading in 4 lift padeyes on a structure which is 2000mm L x 1500mm W x 1200mm H. Attached image shows a structure with the COG exactly in the center. This would then have a percentage load on each liftpoints/padeye as 0.25 (which...

Hi All, I am trying to find some reference for combined stress calculation in a pin, in AISC 360-10. Can someone guide me to the correct section please? The pin in question is a circular pin used in a clevis, and we have the result values of Axial and Shear Force on the pin with a beam...

Dhengr, The winch manufacturer has given the same tie-down loads which I had sent earlier. You are correct on the 16 nodes and interpretation of the photo, with Y axis as the vertical axis. The loads are worst case loads with the wire rope angle in the worst case. The stiffness of winch...

Hi Canwesteng/JGard1985/Dhengr, Thanks for your replies. Dhengr, this is a Winch which is welded down to the ship with tie-down plates on all four sides of the winch. The plates are bolted with a single bolt to the winch. The plate is then welded to the deck of the ship. See attached file. The...

Hi All, I did an analysis on a equipment. The equipment is welded to the ground plate at 16 points/Nodes (N1, N2...N16). The analysis under 3 different loading scenarios give 3 outputs as attached. I am doing some hand calculations for welding at these nodes. The TOTAL LOAD (highlighted in...

Hi All, I have attached a sketch of a welded structure, with 4 gusset plates. The structural analysis program shows the loads in the X, Y and Z direction at the beam intersection. I know it might sound basic stuff for many of you, can anyone advise what is Equivalent Stress for the welding of...

Thanks Kiskertlugas.

Hi All, I am trying to do an analysis on a structure, where some part has pipe to pipe connection (bolted with flanges). The structural beam analysis software I am using does not allow to model flanges or bolts. So the flange joint can only be input as beams with a node joint, and I will have...

Hokie,Robyeng,Agent, all thanks a lot.

Hi All, If we want to make a circular hole and a rectangular hole in an loaded I-Beam, which place is best place to put the holes (Center/or at beam ends, and mid-web/or near flange ends), so that there is the least stress in the beam near the opening. One beam is point loaded in the center...

Hi All, For FEA, simulation work which computer specification would be better? A computer with processor i7 4790K, 4GHz, 4 Core, 8 Threads, 32 GB RAM or a computer with Processor i7 5930K, 3.5GHz, 6 Core, 12 Threads, 64 GB RAM. Thanks in advance, HD

Hi All, I normally save SolidWorks drawings to .dwg format. While opening I use Draftsight for .dwg files. But when the drawings are saved in the .dwg format, the drawings are all bigger than the paper size (around 5-6 times the paper size). The drawing size is correct, which is A3 size. But...

Hi All, I am designing a structure with a final load of 25 tonnes. While I have designed lifting padeyes in the past where padeyes have been slotted through tubes (circular, square, and rectangular). This case is the padeye is to be welded on a I-Beam, but instead of just welding it with a full...

Hi All, I am designing a subsea equipment, which will be using a foam block to make the equipment neutrally buoyant. While we can calculate the buoyant force needed to make the equipment neutrally buoyant in seawater, I have another question. Suppose the equipment is neutrally buoyant in water...

Hi All, I am designing and analyzing a container frame 20' x 8' x 8'. As per DNV 2.7-1 guidelines, the equivalent von Mises stress is not to exceed 0.85 of the yield stress of the material. Now as I am doing a beam/column analysis in my software the output stress is only in axial, shear, or...

Hi All, Thanks for the suggestions. I was also trying to go for JIC and stick to that standard. We have used Autoclave in the past, so will refer to that as well. Thanks once again. I will move on with JIC. Regards, HD

Hi All, I am trying to design some new hydraulic tools where pressure will range from 1000 psi to 15000 psi. I am familiar with Swagelok and Parker. My question is what fitting standard should I stick to for my Marine and offshore products? I want to stick to one commonly used and available...

Hi All, I am designing a winch, which would have a drum weight of 2000 kg, and wire rope of around 4500 kg wrapped on the drum. I need to find the torque required to rotate the drum from rest. Is there any literature or reference I can refer/read to? Thanks in advance. Regards, HD

Hi All, I am designing a winch, which would have a drum weight of 2000 kg, and wire rope of around 4500 kg wrapped on the drum. I need to find the torque required to rotate the drum from rest. Is there any literature or reference I can refer/read to? Thanks in advance. Regards, HD

Hi, We have a 12 ft W Beam running in our workshop, with a 2 ton trolley running in it. Everything is rated for a WLL 2 ton. The W Beam is welded across to the transverse beams above it. All the transverse beams make up the roof of the structure, and all the transverse beams are placed at a...