Clasification Society Rulefinder 2020 - Version 9.33 - Fix
Common Structural Rules - Common Structural Rules for Bulk Carriers and Oil Tankers, January 2019 - Part 1 General Hull Requirements - Chapter 4 Loads - Section 3 Ship Motions and Accelerations - Symbols

Symbols

For symbols not defined in this section, refer to Ch 1, Sec 4.

a0 : Acceleration parameter, to be taken as:
  • a0 =

Tθ : Roll period, in s, as defined in [2.1.1].

θ : Roll angle, in deg, as defined in [2.1.1].

Tϕ : Pitch period, in s, as defined in [2.1.2].

ϕ : Pitch angle, in deg, as defined in [2.1.2].

R : Vertical coordinate, in m, of the ship rotation centre, to be taken as:

CXG, CXS, CXP, CYG, CYS, CYR, CZH, CZR, and CZP: Load combination factors, as defined in Ch 4, Sec 2.

aroll-y : Transverse acceleration due to roll, in m/s2, as defined in [3.3.2].

apitch-x : Longitudinal acceleration due to pitch, in m/s2, as defined in [3.3.1].

aroll-z : Vertical acceleration due to roll, in m/s2, as defined in [3.3.3].

apitch-z : Vertical acceleration due to pitch, in m/s2, as defined in [3.3.3].

fT : Ratio between draught at a loading condition and scantling draught, to be taken as:
  • but is not to be taken less than 0.5.

TLC : Draught, in m, amidships for the considered load case

x, y, z : X, Y and Z coordinates, in m, of the considered point with respect to the coordinate system, as defined in Ch 4, Sec 1, [1.2.1].

fps : Coefficient for strength assessments which is dependant on the applicable design load scenario specified in Ch 4, Sec 7, and to be taken as:
  • fps = 1.0 for extreme sea loads design load scenario.
  • fps = 0.8 for the ballast water exchange design load scenario.
  • fps = 0.8 for the accidental flooded design load scenario at sea.
  • fps = 0.4 for the harbour/sheltered water design load scenario.
ffa : Fatigue coefficient to be taken as:
  • ffa = 0.9
Parent topic: Section 3 Ship Motions and Accelerations
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