Marine System

Structural Part of Ship 1. MAIN PARTICULAR / APPENDIX INFORMATION of SHIP : Length between Perpendicular (L) in M Length Water Line (Lwl) in M Breadth of ship (B) in M Draft  (T) in M or can be obtained by T=0.66H+0.9 in M Height  (H) in M Block coefficient (CB) = Δ / (L.B.T) Displacement (Δ) in Ton Volume of Displacement ∇ in M^3 Frame spacing (a) in M Web Frame spacing (e) in M Material factor (k)  Yield strength (ReH) in N/mm^2 ref. BKI vol.II sec.2, A-2 2. SCANTLING CALCULATION 2.1  Bottom Shell Plating:  #Length co-efficient (CL)      = 1                          for L ≥ 90 m        (BKI vol.II.ref.sec-4, A.2.2)                                                  = (L/90)^0.5           for L < 90 m #Service coefficient (CRW)   = 1 for unlimited range service            (BKI vol.II.ref.sec-4, A.2.2)                                                 = 0,90 for service range P                                                 = 0,75 for service range L

 LOADING IN TANKERS AND BULK CARRIERS. ABSTRACT In this article, a method for the calculation of the approximate values of shear force and bending moment loading in tankers and bulk carriers is proposed. The data is presented in graphical form as well as practical equations to be used in the preliminary design stages. The method is based on the data obtained from more than fifty ships and it is tested on various ships not included in the original data base. It is demonstrated that the approximate results show satisfactory agreement with the results of the exact calculations. The full load still water and wave crest - wave trough conditions are separately examined in the light of the classification society criteria and the results are presented in a comparative form. 1.INTRODUCTION   In the preliminary design stage, it is useful to have as precise information as possible on the magnitudes of maximum shear force and bending moment loading. In this study, a set of approxim