Berthing Energy 12000 TEU (Emma Maersk E-Class)

CALCULATION OF BERTHING ENERGY FOR VIZHINJAM PORT (12,000 TEU SHIP) Characteristics of the Design Ships

Unit

Dead Weight Tonnage (DWT)

tonnes

Displacement Tonnage (MD)

tonnes

Length Overall (LOA)

m

Beam (B)

m

Loaded Draft (D)

m

Length Between Perpendiculars (L)

m

Berthing Velocity (VB)

m

Berthing Pocket Depth

m

Under Keel Clearance

m

Reference Link (Taken from Trelleborg Fender Design Manual)

157000 208000 397.0 57 15.5 376.0 0.1 17.6 2.1

Ship Dimensions Tables'!A1 Ship Dimensions Tables'!A1

Approach Velocity '!A1

Choose Site Condition - Berthing Condition from the following menu:

` Berthing Velocity

m/s

Angle of Approach

degrees

Berthing Energy = 0.5CMMD(VB)2CECSCC

kNm

Factor of Safety Berthing Energy After Applying Factor of Safety

kNm

0.1

6

960 1.5

Berthing Modes'!A1

Berthing Energy Formula'!A1 Berthing Energy Formula'!A25

1440

where

Reference Link

1.54 0.66 0.9 1.0

CM 2

2

2

2

2

CE = (K + R COS v) / (K + R ) CS CC

85.00

K = (0.19 Cb + 0.11) L Cb = MD / (L * B * D * 1.025)

0.61

Block Coefficient Used

0.61

Berthing Eccentricity

m

28.5

Distance of berthing point from C/l of berth

m

94

R

m

v

degrees

74.52 61.52

Hydrodynamic Mass Coefficient

Cm!A1

Eccentricity Coefficient

Ce!A1

Softness Factor

Cs!A1

Berth Configuration Coefficient

Cs!A1

Radius of Gyration of the Ship

Ce!A60

Block Coefficient.

Cb Value'!A1

Offset of the berthing point from the centre line of the ship Quarter point berthing Distance of Point of Contact From Centre of Mass. Angle between Velocity Vector and line joing centre of mass with contact point

BS Code

BS Code