Propeller Strength Calculation

Propeller strength calculation is a must-do process after propeller design to avoid possible blade damage or fractures. 

It's complicated calculation methods to consider all propeller parameters, the calculation result gives simple answer of YES/No.
Here's the basic required data (sample) for propeller strength calculation.

Data List For Propeller Strength Calculation (sample)

General Particulars

Name of ship:

New Titanic

LOA:

47.00 m

LBP:

40.50 m

BREADTH:

9.40 m

DEPTH:

4.00 m

SUMMER DRAFT:

2.80 m

TYPE:

Double hull, Oil tanker

CLASS:

PRS

GT:

532.189

NT:

457.5

IMO NO.:

9769582


REQUIRED DATA

PROPELLER TYPE:

Fixed pitch propeller

MATERIAL OF PROPELLER:

Cu3 Ni-Al Bronze

NO. OF PROPELLERS:

2

NUMBER OF BLADES:

4

WAKE FRICTION:

0.243

THRUST DEDUCTION:

0.171

BREAK POWER:

565 HP

SHAFT EFFIECENCY:

75%

RPM OF PROPELLER:

408

DRAFT:

2.8 m

SUBMERGE OF PROPELLER:

1.50 M "Height of Water Above The Upper Tip"

BLOCK COFFIECENT:

0.749

SPECIFIC WEIGHT OF SEA WATER:

1.025 t/m3

CAVITATION TYPE:

bubble cavitation