Calculate Vertical, Radial & Horizontal Forces for Lifting Lug Design

[zubir]

Dear Experts,

I have vessel with lifting lug attached to the shell.
Vessel weight = 1681.84 N

How to calculate:-
1) vertical force
2) nominal radial force
3) horizontal force

 

[Simon Bridge]

Welcome to PF.

You need to draw a free body diagram and use trigonometry.
The details depend on the geometry of the situation - where the lugs are fitted, how many are being used, how the cables (or whatever) are attached etc.

 

[Q_Goest]

If building vessels for the US, you'll also need to comply with ASME BTH-1, "Design of Below-the-Hook Lifting Devices".