Murray's Method - Hogging SWBM

Still-water bending moment in hogging using Murray's method - the old-school hand-calc for bulk-carrier and tanker midship SWBM.

SWBMHoggingMurray

LBPmDisplacementtBlock coefficientCargo forward of amidshipstCargo aft of amidshipstFwd cargo centroid from amidshipsmAft cargo centroid from amidshipsm

Buoyancy moment: 9,520MN·m

Weight moment: 840MN·m

Still-water BM: -8,679,840kN·m

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

M_{SW} = M_{weight} - M_{buoyancy}

Symbol	Meaning	Unit
$L_{BP}$	Length between perpendiculars	m
$C_B$	Block coefficient
$\Delta$	Displacement	t

Source: Rawson & Tupper Vol 1 - Structural

In short

Still-water bending moment in hogging using Murray's method - the old-school hand-calc for bulk-carrier and tanker midship SWBM.

Learn the theory Hull Strength and Longitudinal Bending