Stiff ship and tender ship STIFF SHIP When a metacentric height and righting lever distance is large, Ship have excessive stability Ship will come to its normal upright position very quickly when its heeled. Tender ship When metacentric height and righting lever distance is very small. Ships have less stability Ship will come to its normal upright position very slowly when its heeled. DIFFERENCE BETWEEN STIFF SHIP & TENDER SHIP?
SOLAS - 11.1 SPECIAL MEASURES ENHANCE TO MARITIME SAFETY IMO NUMBER & CONTINUOUS SYNOPSIS RECORD IMO NUMBER APPLY TO cargo ship of 300 GT and above, passenger ship of 100 GT and above, SHIP IDENTIFICATION NUMBER: the number consists of seven digits assigned by IHS maritime, the label begins with the letters "IMOxx00xx0" once assigned the number will not changed, permanently marked visible in color outside diameter not less than 200mm inside diameter not less than 100mm width should be proportional to height. LOCATION OF IMO NUMBER MARKED IN SHIP highly visible area sides of hull (port,stbd) mid ship super structure CONTINUOUS SYNOPSIS RECORD Ship history book is a permanent record kept in a ship always. and shal...
FREE SURFACE EFFECT Definition of free surface effect? When a tank or compartment partially filled with liquid, when a ship is inclined. liquid will moves along with ship's inclined direction. which will reduce the stability of the ship. How to reduce free surface effect : Swash bulkheads Pocketing Surface permeability Sluice valves Swash bulkheads This types of bulkheads give some additional strength, Which are longitudinal bulkheads which will restrict the flow of liquid when ship is inclined Pocketing fill the tank fully which will reduce the free surface effect Surface permeability The object such as machineries, engine and piping systems prevent the moving water shifting of wedge, these reducing the free surface effect. Sluice valves The large slack tanks are cross connected with sluice valves, it will reduce the flow of the liquid so that it will reduce free surface effect.
Comments
Post a Comment