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C. π (17)π π The value m2can be calculated by following equation: 110 The 2nd International Seminar on Science and Technology August 2nd 2016, Postgraduate Program Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia Value of CWL can be calculated by the following equation: CWL =0.9670599ΓCb (2) π = πΏ(2π + π΅)βπΆπ(0.4530 + 0.4425πΆπ + β0.2862πΆπ β 0.003467 π΅π + 0.3696πΆππ ) (10) 1 GZ= (GM+ BM tan ΞΈ) sin ΞΈ 0.155087 Γ (πΏπΆπ΅) (16) The value m1can be calculated by following equation: For angles above 15 degrees β Ο -0.1 m 2 = - 1 . 6 9 3 8 5 Γ C 2P Γ e F 2n ( 1 8 ) The value of Ξ» can be calculated by following equation: 2 2 π =β‘0.0140407ΓπΏ β1.75254Γπ»3 β4.79323π΅ β 0.52085 Calculating the value of BM using the following equation: π΅π = πΌ β Where: 3 ππΏ 1.41753 I =0.075645ΓLΓB ΓπΆ (3) The Value of Froude number (Fr) can be calculated by the following equation: Calculating the value of KM using the following equation: KM=KB + BM (5) by following equation: Rn= VsΓL (12) Calculating value of coefficient friction (Cf) can be using equation: Cf= 0.075 (13) Log R Calculates the value of KG can use the equation following approach: πΎπΊ = β0.00642 Γ πΏ + 0.2669 Γ π΅ + 0.3509 Γ π· + 0.272 Γ πΏ β 0.45126 Γ πΆπ β 0.3337 Γ πΏ + π»1/3 {πΏΓπ΅Γπ·}1,3 10 n 0.5411 Γ π΅ β 0.8347 Γ π· (6) π·π The calculation of the value of residual resistance can uβsingtheequationfollowingapproach: π π = πΆ Γ ππ1πΉππ+π2πππ β‘(ππΉπβ2) (14) Evaluation of vessel stability HDPE plastic pompong performed by using software Hydromax. Ship resistance Ship resistance is the amount of resistance force that is received by the ship's hull at a certain speed. The resistance of fishing vessel according to the method of "Holtrop and Mennen (1982)" can be calculated using the following equation approach: ππΏπΏ 23 Symbol description: = Volume displacement (m ) = Density of sea water (ton/m3) = Wetted surface area (m2) = speed (knot) = Froude number = Reynold number = Coefficient friction = block coefficient = Midship coefficient = coefficient water plan = 0.18 + 0.86 Cp = correlation factor = 0.0006 = Displacement (ton) = Residual resistance (kN) = Viscosity kinematic sea water = 1.18831x10-6 m2/sec S Vs Fn Rn Cf Cb Cm CWP CR A (19) (20) (21) Evaluation of resistance to fishing vessel of pompong HDPE plastic performed by using hullspeed software. ΞβR Ξ½ A. III. RESULTS AND DISCUSSION Design of lines plan pompong HDPE plastic 3 Ξ» =1.446ΓCP -0.03Γ BL (8) π =125.67 β1632.25ΓπΆ2+234.132ΓπΆ3+ πΈβ‘ π π (4) Calculating the wet surface area of the vessel (S) using the following equation approach: βg.L The value of Reynold number (Rn) can be calculated Vs Fn= (11) Where: v Then to calculate the value of GM by using the equation of the following: The value of C can be calculated by following GM=KM-KG So that the value of GZ is: For small angles up to 15 degrees GZ = GMsinΞΈ (7) (9) equation: C=2223105 (π΅πΏ ) Γ ( ) Γ(90-i ) (15) B 3.78613 T 1.07961 -1.37565 LBE 1 8.07981 Γ πΆ + 13.8673 Γ πΆ β 6.984388 Γ πΆ and d = -0.9 So that the total resistance vessels T1 2FARR R = ΓΟΓSΓV Γ(C +C )+ Γβ 2β The size of pompong HDPE plastic for Bengkalis which will be designed is as shown in Table 2.PDF Image | High Density Polyethylene (HDPE) Vessel of Pompong as a Fishing Vessel
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