HYDROPLANE DEVELOPMENT AS DIVING PLAN EQUIPMENT ON A SUBMARINE



ISBN: 978-1-5108-1170-6

International Conference on Ship and Offshore Technology

(ICSOT 2014)

Makassar, Indonesia 4-5 November 2014

Editors:

Faisal Mahmuddin Rahmad Patarru

Wira Setiawan M. Uswah Pawara

Development in Ship Design &

Construction

Printed from e-media with permission by:

Curran Associates, Inc.

57 Morehouse Lane Red Hook, NY 12571

Some format issues inherent in the e-media version may also appear in this print version.

Copyright© (2015) by The Royal Institution of Naval Architects All rights reserved.

Printed by Curran Associates, Inc. (2016)

For permission requests, please contact The Royal Institution of Naval Architects]

at the address below.

The Royal Institution of Naval Architects 8-9 Northumberland Street

London, WC2N 5DA United Kingdom

Phone: 44 207 235 4622 Fax: 44 207 259 5912 publications@rina.org.uk

Additional copies of this publication are available from:

Curran Associates, Inc.

57 Morehouse Lane Red Hook, NY 12571 USA Phone: 845-758-0400 Fax: 845-758-2634

Email: curran@proceedings.com

Web: www.proceedings.com

CONTENTS

Page Finite Element Analysis on the Ship Hull Girder Under Longitudinal Bending

with Bottom Damage

Muhammad Zubair Muis Alie / Hasanuddin University

1

Study on the Plate Thickness Deduction on BKI Class Crude Oil Tanker Siti Komariyah, Fredhi Agung Prasetyo, Mohammad Arif Kurniawan / Indonesian Bureau of Classification

5

Composite Structure Design in Passenger Ship Using Multi-Objective Optimization Algorithm

Abdi Kükner, Baran Serdar Sarıoğlu / Istanbul Technical University

11

Experimental and Numerical Investigation into the Effect of Water Depth on the Resistance Components of Multihull Configuration I K A P Utama, D. Setyawan / Institute of Technology Sepuluh Nopember E. Suwarni, A. Jamaluddin / Indonesian Hydrodynamics Laboratory M. Iqbal / Diponegoro University

19

Challenges On Designing Sustainable Fishing Vessels For Indonesian Fisheries

Putu Arta Wibawa, R. W. Birmingham, M. D. Woodward / Newcastle University

25

Analysis of Propulsion Efficiency on Fishing Boat 30 GRT

Mansyur Hasbullah, A. Haris Muhammad, Syarifuddin Daud / Hasanuddin University

35

Cruising Performance of Indonesian Ro-Ro Ferries Under Action of Wind and Waves

Daeng Paroka, A. H. Muhammad, Syamsul Asri / Hasanuddin University

41

Parametric Simulation Of Semi-Swath Ship Running In Following Regular Waves

Rahimuddin, Surya Haryanto, Syerly Klara, Haryanti Rivai, Hasnawiyah Hasan, Azis Karim / Hasanuddin University

Adi Maimun / Universiti Teknologi Malaysia

49

Application of Logic Programming Technique on Maritime Accident Analysis

Zobair Ibn Awal, Kazuhiko Hasegawa / Osaka University

59

Hydroplane Development as Diving Plan Equipment on a Submarine Ali Munazid

^,

Bagiyo Suwasono, Gde A. Prabhawatya Poundra, Alfred Agry Mohamad / Hang Tuah University

67

The Fluid Flowing Analysis of RC Hydroplane with Ansys 14.0

Agum Gumelar, Eris Andicky, Intan Baroroh, Bagyo Suwasono / Hang Tuah University

71

Initial Preview on Re-Mapping Wave Scatter Area of Indonesian Waterways

Mohammad Arif Kurniawan, Siti Komariyah, Fredhi Agung Prasetyo / Indonesian Bureau of Classification

75

Mapping Ocean Wind Energy Density around Sulawesi and Maluku Islands

Faisal Mahmuddin / Hasanuddin University

81

The Analysis of Diesel Engine Performance Using Coal Oil Mixture (COM)

Wira Setiawan, Uswah Pawara / Hasanuddin University

I Made Ariana, Semin / Institute of Technology Sepuluh Nopember

87

Measurement of Maritime Connectivity at Sulawesi Corridor Andi Siti Chairunnisa Mappangara, Resky Khalik, Lawalenna Samang, Rahardjo Adisasmita, Ganding Sitepu / Hasanuddin University

95

Performance of the Zinc Anode Shape Design Installation on the Seabus ALU-01 Fastship

Neny Praharsiwi Utomo, Ali Munazid, Bagiyo Suwasono / Hang Tuah University

105

Gravity Model Applications in Determination of Distribution Model for Goods Movement among Ports at Sulawesi Corridor

Ahzar, Misliah Idrus, Andi Siti Chaerunnisa / Hasanuddin University

109

ICSOT&Indonesia,&405&November&2014,&Makassar,&Indonesia&

! ! !

©&2014:&The&Royal&Institution&of&Naval&Architects&

! ! !

HYDROPLANE DEVELOPMENT AS DIVING PLAN EQUIPMENT ON A SUBMARINE

Gde A. Prabhawatya Poundra¹, Alfred Agry Mohamad¹, Ali Munazid¹, and Bagiyo Suwasono¹, Naval Architecture and Ship Building Engineering, Hang Tuah University, Indonesia¹

SUMARRY

Nowadays, submarines are already being a lethal weapon for the navy around the world and also being a vessel for under water researches, in their developments, hydroplanes are being created as one of their maneuver equipments to reduce the utilization of ballast tanks on the submarines. This research intend to use the hydroplanes as the diving plan of the submarine itself, by knowing the hydrodynamic theoretical impacts. The research process is a simulation of diving plan installation as a maneuver equipment, what are the advantages and disadvantages of the hydroplanes, what is the effect by adding hydroplanes to the submarine’s stability while operating under water and also how many forces that works on the hydroplanes and how does the forces that works on the hydroplanes affecting the submarine while maneuvering under water. The modeling process and simulation are be done by using ANSYS 14.5 program to observe the effect of adding the hydroplanes on a submarine.

Keywords: hydroplane, submarine, ansys simulation

NOMENCLATURE

Fl = Cl . ½ ρAv² Fd = Cd. ½ ρAv² F1 – F2 = ½ ρ (v²a – v²b) A

!=!!!!"# ! 0,5!!"²

Fl = Lifting Force (N) F_d = Drag Force (N) Cl = Lift Coefficient Cd = Drag Coefficient ρ = Water Density (kg/m³) A = Cross-sectional Area (m²) U/v = Velocity/Thrust (m/s) F1 = Positive lifting force (N) F2 = Negative lifting force (N) α = hydroplane’s angle (˚) C = Friction coefficient (C = 0,1)

INTRODUCTION

The process of submerging the submarines nowadays are mostly used depth tanks and trim tanks to make the submarines stay under water while operating. As we know that submarines have both positive buoyancy and negative buoyancy which means when the submarines needs to submerge she will fill the depth tanks with the water and when she needs to float she will deplete the water inside the tanks and replace it with air and this system could make the submarine stay under water efficiently. But there’s a problem in this system, the problem is when the submarines need to float immediately she needs several minutes to deplete the water inside her tanks so she got her positive buoyancy to float; necessary to find the effort to be able to solve this problem.

It has been found that the new method is that the form of a new diving plan model and system that allows the submarines to float immediately. This new diving plan model and system works like an aircraft wings which used air as a cushion so that the aircraft can fly efficiently. This kind of model and system which we want to apply in the submarine, so the submarine can float immediately in the emergency situation. This model is also equipped with a fitted size and construction so that the submarine still can obtain her neutral buoyancy, her stability while dive under water and also maintain her horizontal angle.

Figure 1: hydroplane’s parts

ICSOT&Indonesia,&405&November&2014,&Makassar,&Indonesia&

! ! !

©&2014:&The&Royal&Institution&of&Naval&Architects&

! ! !

Generally there are two kinds of diving technology in the submarine’s system today, such as dynamic diving system and static diving system.

Dynamic diving system is a diving system which used thrust factor and the maneuver of the hydro foil to submerge the submarine, which means that the submarine will float back to the surface if the power and the control is lost. Static diving system is a diving system which used ballast tanks to absorb the water around the submarine and release the air that contained inside those tanks to submerge the submarine. And in this paper we focused on developing the hydroplane as diving plan equipment on a submarine.

Hydroplane/foil is a maneuvering equipment that used mostly by aircraft to control the aircraft while operating above the ground. On the submarine the application of the foil itself developed to reduce the utilization of the ballast tanks and to gain more stability while maneuvering under water.

RESULT AND CALCULATION

Before determining the size of the hydroplane that we going to equip on the submarine, first we have to know the thrust of the submarine itself and in this research we used the constant thrust on the new submarine that we develop. In the dynamic diving system, we need to organize the hydroplane so that when the hydroplanes are rising there will be a synchronization between the thrust and the water or fluids that flow through the hydroplanes so that the submarine will have less neutral buoyancy which means she will encounter a trim condition (especially trim by stern), so the submarine will dive into the water. In general the force of the hydroplane can approximately be calculated from the following equation:

!=!!!sin ! 0,5!!"²

From the equation we know that there are three factors which affecting the dynamic diving system on a submarine. The first one is the area of each hydroplanes (A), the velocity of the submarine (v) and the angle of the hydroplane (α). Because of the velocity or the thrust of this submarine was constant, we need to determine the size of the hydroplanes itself

and the angle of the hydroplane to make a good diving process and to maintain the stability of the submarine while operating under water.

There are some aspect that affecting the foil that we use in this submarine, there are: thickness, chord, transverse length, cross-sectional area, circumference, the position of foil and the movements of the fluids that flows around the foil. And because this submarine not use any ballast tanks to keep her under water, so there’s must be a lifting force and drag force that will work if the engine don’t give any thrust to the submarine. The lifting and drag force of the hydroplane can approximately calculated as follows:

Fl = Cl . ½ ρAv² Fd = Cd. ½ ρAv²

The foil generally receive both fluids pressures from the top and bottom side of the foil. Both of these pressure also give the foil a lifting force, and these pressures can approximately calculated as follows:

F1 – F2 = ½ ρ (v²a – v²b) A

In this research we use some sample data as follows:

• Chord : 595 mm

• Thickness : 85 mm

• Longitudinal length : 500 mm

• Surface area : 33363 mm

• Rounded area :1223 mm

• Water density : 1,025

• Angle attack : 0, 10, 20, -10, -20

• Velocity : 5 m/s

Fig 1. Hydroplane’s Parts

ICSOT&Indonesia,&405&November&2014,&Makassar,&Indonesia&

! ! !

©&2014:&The&Royal&Institution&of&Naval&Architects&

! ! !

Result curve of hydroplane’s lift coefficient and drag coefficient to the attack angles

Result curve of front hydroplane’s lift and drag coefficient to the attack angles

Result curve of the connection between buoyancy force (F1) and diving ability (F2) where the attack angle are constant that is -20˚, so that:

CONCLUSION

From the results of the research that we’ve been done, we found some conclusions :

• That equipping submarine with hydroplane/foil added more buoyancy force to the submarine because of the lifting force that produced by the hydroplane.

• The bigger the surface area of the foil, the bigger lifting force value that produced by the foil

"20,!0.01835!

"10,!0.01620!

0,!"0.01288!

10,!"0.01620!20,!"0.01840!

"20,!"0.01505!

"10,!"0.01887!

0,!0.02173!

10,!0.01887!

20,!0.01505!

"30! "20! "10! 0! 10! 20! 30!

cl#Cd&

Angle&of&a.ack&

Cl!

Cd!

Fig 2. Submarine 3D Models

Fig 3. Fluids Pressure on The Foil

"20,!0.2387! "10,!0.1620!

0,!0.1454!

10,!"0.1620!

20,!"0.2965!

"20,!"0.7839!

"10,!"0.8790!

0,!0.8790!

10,!0.7839!20,!0.7878!

R²!=!0.89607!

R²!=!0.70625!

"30! "20! "10! 0! 10! 20! 30!

Cl#Cd&

Angle&of&a.ack&

Cl!

Cd!

Linear!(Cl)!

Linear!(Cd)!

0!

5000!

10000!

15000!

20000!

25000!

30000!

35000!

40000!

0! 5! 10! 15! 20! 25!

F1:F2&

Depth&(H)&&

F1!

F2!CL!"20'!

ICSOT&Indonesia,&405&November&2014,&Makassar,&Indonesia&

! ! !

©&2014:&The&Royal&Institution&of&Naval&Architects&

! ! !

REFERENCES

1. Aerodynamics Engineering for students.

2. Compton-Hall, Richard, 1999, ‘The Submarine Pioneers, Sutton Publishing, ISBN 0-7509-2154- 4.

3. David Miller, 1990, ‘Morderne Gevechtswapen:

Onderzeeboten’, Uitgeverij Helmond, Helmond, The Netherlands.

4. McPhail, Steven, 2003, Autosub6000: A Deep Diving Long Range AUV. Underwater Systems Laboratory, National Marine Facilities Division National Oceanography Centre, Southampton European Way, Southampton, SO14 3ZH, UK.

5. Ulrich Gabler, 1987, ‘Unterseebootbau, Bernard

& Graefe Verlag, Koblenz, Germany, ISBN 3- 7637-5286-2.

AUTHORS’ BIOGRAPHY

Gde A.Prabhawatya Poundra. He was born at Tabanan city on July 27^th,1994 . After graduated from SMPN 2 Abian Semal Junior high school, he moved to Denpasar city to continue his study at SMAN 8 Denpasar High School. And after graduated from the high school, he continuing his journey to Surabaya city to study at Hang Tuah University and focusing his study in Naval Architecture and Ship building Engineering department until now.

Alfred Agry Mohammad. He was born at Surabaya on September 30^th, 1993. After graduated from SMA Trimurti in 2008 he continuing at Hassanudin University in 2011 at Naval Architecture, but in 2012 he moved to Surabaya to study at Hang Tuah University in the same department until now.

Ali Munazid. He Was born at Gresik city on August 19^th,1979. After graduated from Naval Architecture and Ship building Engineering at Hang Tuah University (UHT), he continuing his study at ITS. Now he return to UHT as a secretary in Naval Architecture and Ship building Engineering department and also as a lecturer at UHT until now.

Bagiyo Suwasono. He was born in Surabaya, east java, June 23^th 1970. After solves study at 4 senior high school Surabaya Year 1990, then drawn out higher education at Hang Tuah University (UHT), Naval Architecture and Ship Building Engineering on year 1990, then solves study at tiered 1 UHT on month of 1995 and direct teaches to become Naval Architecture and Ship Engineering regular lecturers UHT 1995 drawn out study at postgraduate ITS and solves study S2 of year 1999. And drawn out study at postgraduate ITS and solves study S3 of year 2011 return to UHT to drawn out career as lecturer of UHT naval architecture and ship engineering, besides it also conjunct on planning bureau unit of work development and UHT' information system thus far.