Analisis Pengaruh Gerakan Kapal Terhadap Added Wave Resistance Studi Kasus : Kapal Corvette

Kusumah, Yuda Wikara (2018) Analisis Pengaruh Gerakan Kapal Terhadap Added Wave Resistance Studi Kasus : Kapal Corvette. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Ketika kapal berlayar di laut, kapal membutuhkan tenaga tambahan. Hal ini disebabkan pada perairan bergelombang kapal mengalami gerakan heave dan pitch yang bisa mengakibatkan adanya added wave resistance, added power, dan speed loss. Nilai added wave resistance terbesar untuk ketiga metode terdapat pada sea state 6, dengan heading angle 90. Hasil added wave resistance menggunakan metode Havelock Theory tertinggi yaitu 33.33 KN. Nilai terbesar added wave resistance dengan menggunakan Salvesen yaitu sebesar 24.73 KN. Untuk metode Gerritsma & Beukelman nilai tertinggi yaitu sebesar 45.89 KN. Nilai RMS terbesar antara metode Havelock dengan Gerritsma & Beukelman yaitu 0,969 pada sea state 2 dan heading angle 180. Sedangkan antara metode Havelock dengan Salvesen nilai RMS terbesar yaitu 0,932 pada sea state 2 dan heading angle 135. Untuk perbandingan antara metode Gerritsma & Beukelman dengan Salvesen, didapatkan nilai RMS terbesar yaitu 2,771 pada sea state 2 dan heading angle 180. Nilai added power untuk metode Salvesen, Gerritsma & Beukelman, dan Havelock Theory memiliki nilai terbesar pada sea state 6 dengan heading angle 90. Nilai added power tertinggi untuk metode Salvesen yaitu 381.6 kW. Untuk metode Gerritsma & Beukelman memiliki nilai added power terbesar yaitu 708.1 kW. Nilai terbesar added power untuk metode Havelock Theory yaitu 514.4 kW. Nilai speed loss untuk metode Salvesen, Gerritsma & Beukelman, dan Havelock Theory memiliki nilai terbesar pada sea state 6 dengan heading angle 90. Nilai speed loss tertinggi untuk metode Salvesen yaitu 0.2053 knot. Untuk metode Gerritsma & Beukelman memiliki nilai speed loss terbesar yaitu 1.1328 knot. Nilai terbesar speed loss untuk metode Havelock Theory yaitu 1.0009 knot. ========== A ship needs an added power when it is sailing through a seaway . The reason behind this is because when a ship sails through a seaway, the ships experienced a heave and pitch motion that results in added wave resistance , added power , and speed loss . The added wave resistance is calculated w ith Havelock Theory, Gerritsma & Beukelman, and Salvesen method which the highest results for the three method is in sea state 6, with 90 heading angle. The highest added wave resistance result for Havelock Theory is 33.33 KN, for Salvesen is 24.73 KN, and for Gerritsma & Beukelman method is 45.89 KN. The highest RMS result between Havelock Theory and Gerritsma & Beukelman method is 0,969 which happened in sea state 2 with 180 heading angle, between Havelock Theory and Salvesen is 0,932 which happened in se a state 2 with 135 heading angle, and for Gerritsma & Beukelman and Salvesen method is 2.771 which happened in sea state 2 with 180 heading angle. The calculation for added power is using EHP (Effective Horse Power). The highest result of added power for S alvesen, Gerritsma & Beukelman, and Havelock Theory method happened in sea state 6 with heading angle 90. The highest result of added power for salvesen method is 381.6 kW. For Gerritsma & Beukelman method the highest result of added power is 708.1 kW and the highest result of added power for Havelock Theory method is 514.4 kW . After the added power is calculated then the speed loss could be obtained. The highest speed loss for the three method is in sea state 6 with 90 heading angle. The highest result for Salvesen is 0.2053 knot, for Gerritsma & Beukelman is 1.1328 knot, and for Havelock Theory is 1.0009 knot.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Kapal Corvette; Added Wave Resistance; Added Power; Speed Loss
Subjects: V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM161 Ships--Hydrodynamics
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM163 Hulls (Naval architecture)
V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships
Divisions: Faculty of Marine Technology > Naval Architecture and Shipbuilding Engineering > (S1) Undergraduate Theses
Depositing User: Kusumah Yuda Wikara
Date Deposited: 23 Apr 2018 04:28
Last Modified: 23 Apr 2018 04:28
URI: http://repository.its.ac.id/id/eprint/50978

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