PDF Development in Ship Design



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

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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

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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

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THE FLUID FLOWING ANALYSIS OF RC HYDROPLANE WITH ANSYS 14.0

Eris Andicky¹, Agum Gumelar¹,Intan Baroroh¹, Bagiyo Suwasono¹, Naval Architecture and Ship Building Engineering, Hang Tuah University, Indonesia¹

SUMMARY

This research is evaluation from the unmanned fast boat contest at Camplong Beach Madura 2013, there are many lack in our boat performance. And this is the problem that writer wants to study. Because the boat can’t drove at maximum velocity and the boat flipped down when impacted with wave and wind. We expect with dimension plan took from hydrofoil ship concept can maintain the stability of the hull when the ship drove at high velocity. The modeling and analyzing process used in dimension plan is modeled and simulated with ANSYS 14.0. The goal of this research is to obtain the Design of RC Hydroplane dimension so as to maintain a stable condition when the ship drove at high velocity and the specification of RC Hydroplane: Length 700 mm, Breadth 280 mm, Height 199 mm, and draft 50 mm with velocity of 33,47 knots.

Keywords: RC Hydroplane, ANSYS 14.0, Design INTRODUCTION

This research is evaluating from the contest held by Ditjen Dikti at Camplong beach Madura 2013and more than 20 university in Indonesia participated in it.

The result of evaluation is our ship is lack in performance. At high velocity the boat cannot maintain his stability and the bow is lifted then the boat flipping down when impact by wave and wind.

Furthermore we analyze the hydroplane design using ANSYS14.0 and found the optimum size of the hydroplane. To increase the stability we initiate to use hydrofoil hull concept to fix the stability of the hydroplane. In the modeling and analyzing process we use ANSYS 14.0.

The main problem of this project is to find the hydroplane dimension with ANSYS 14.0 for that can drove at high velocity with good stability. Because mostly the hydroplane design set the stability in the main priority and loss its optimum velocity.

The goal of the research is to find the hydroplane dimension and characteristic of hydroplane with ANSYS 14.0 that can maintain it stability when drove at maximum velocity and we hope the hydrofoil hull concept that we applied can increase the boat’s stability.

So when the boat drove in the high velocity and impacted with wave or winds the boat still drove with its maximum velocity and stable condition. So in the future we can provide information of an optimal design for development of boat modeling.

Hydroplane (or hydro, or thunderboat) is a fast motorboat, where the hull shape is such that at speed, the weight of the boat is supported by planing forces, rather than simple buoyancy.

A key aspect of hydroplanes is that they use the water they are on for lift rather than buoyancy, as well as for propulsion and steering: when travelling at high speed water is forced downwards by the bottom of the boat's hull. The water therefore exerts an equal and opposite force upwards, lifting the vast majority of the hull out of

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the water. This process, happening at the surface of the water, is known as planing.

This boat has a flat bottom hull which have the larger area than other vessel with the purpose to reduce the resistance and water friction. in addition there are many problems that appears because of fluids flowing type, either air resistance nor sea wave which cause the ship flipping down at the high velocity.

Hydroplane is not far from Archimedes law concept, at real condition Archimedes law just affected below velocity of 15 knot which the surface of the ship is under the water. But this theory is not affected if the velocity of the ship is above 50 knots. Base of the fact that happen on the hydrofoil ship, all of the hull’s parts are lifting above the surface of the water so Bernoulli law’s affecting the ship.

Figure 1: Archimedes and Bernoulli law concept From the picture above we know that the Bernoulli and Archimedes law is equal in position.

Archimedes law concept that applied is not affected on fast ship type.

RESULT AND DISCUSSION First we design and draw the model with AUTOCAD 2007

Figure 2: 3D model with AUTOCAD 2007

Futhermore, from 3D model with AUTOCAD 2007 we simulate the model with ANSYS 14.0

Figure 3: 3D model inserted in ANSYS 14.0

Figure 4: 3D model with Boundary layer

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Meshing process with ANSYS 14.0

Figure 5: meshing process Setup process / solution

Figure 6: graphic solution

In this step we wait the simulation graphic until stable, the graphic is stable when the line is in straight condition.

And the result of the simulation is below.

Streamline process

Figure 7: Bottom view

From the picture above, we can know how fast the fluid flow on the boat. The value of the fluid’s velocity is known with the colour of the streamline.

The value of each colour is

Colour Flow velocity

Red 21,23 m/s

Yellow 16,12 m/s

Green 10,92 m/s

Light blue 5,717 m/s Dark blue 5,152 m/s Figure 8: table of colour

From the 3D design simulating with ANSYS 14.0 to find the characteristic of hydroplane and the specification of the hydroplane as follows

Length : 70 cm Breadth : 38 cm Height : 10 cm

Draft : 5 cm

Assembly RC Boat

Figure 9: RC HYDROPLANE

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The specification of hydroplane - Balsah wood (Body) - Length 700 mm - Breadth 280 mm - Height 199 mm

- Engine : BrushLess Leopard, servo one pierce, receiver 2 chanel, propeller 3 blade, and general steering system

Figure 10: boat test

Experiment :

- Do experiment 3 until 5 times at the part 1 and 2 (1. Start/Stop dan 2. Velocity)

- Do the experiments at morning , noon, and afternoon.

Remote Controller : - 30 Degree - 600 Degree - 100 Degree

The result from the experiment : Velocity of the ship:

S = 150 m t = 8,72 s

!=!

!=150!!

8,72!!=17,2!!/!=62!!"/ℎ=33,47!"#$%

Ship stability:

By the test, we knew that the ship is unstable at high velocity. Because when drove the bow of the boat is lifted repeatly and unpredicted.

Advantage of our design

- This design reduce the water resistance of the boat greatly, so our hydroplane design is have smaller resistance than ordinary hydroplane and with smaller resistance the boat can drove at optimum velocity. ( with same engine specification)

Disadvantages of our design

- This design makes the boat unstable at the high velocity, because the flow fluid over the body is too large so the bow of the boat is lifted then the boat fliiping down at the high velocity.

- This design has low maneuver ability, because the hull of the boat is flat so it reduce the maneuver ability of the boat.

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CONCLUSION

Using this design makes hydroplane can drove at optimum velocity, but this hydroplane design has a disadvantage such as the boat is not stable and the boat loss his maneuver abillityat high velocity. So we recommend for using a fin at the stern of the hydroplane.

The function of fin is to stabilize the boat and cut off the flow in order to increase the boat maneuver ability so the boat can maneuver better.

REFERENCES

Slamet A., Ketut S. Kajian Eksperimental Pengaruh Posisi Perletakan Hydrofoil Pendukung Terhadap Hambatan Kapal. Jurnal Teknik vol.

I : Institut Teknologi Sepuluh Nopember. 2012 Yusmanto, Arif, Studi Karakteristik Distribusi Tekanan

Dan Kecepatan Disekeliling Airfoil dengan Solid Works. Universitas Muhammadiyah Surakarta.Surakarta. 2008

http://www.ilmuterbang.com. Prinsip Penyebaran Tekanan Bernoulli. Acces on Desember 3

^th

2013.

AUTHORS BIOGRAPHY

Eris Andicky Septyan was born in Surabaya, east java, September 21^th 1995. after solves study at Sukomanunggal III elementary school Surabaya year 2006, then continue study at 26 junior high school surabaya, then continue senior high school 14 Surabaya SMA 11 Surabaya Year 2013. then drawns out higher education at hang tuah surabaya's university naval architecture and ship building engineering until now.

Agum Gumelar Tandepadang was born in Surabaya, east java, September 20 ^th1995. after solves study at Rungkut Menanggal III elementary school Surabaya year 2006, then continue study at 23 junior high school surabaya, then continue 14 senior high school Surabaya then drawns out higher education at hang tuah surabaya's university naval architecture and ship building engineering until now.

Intan Baroroh was born in Trenggalek, east java, December 24^th 1975. after solves study at SMA 1 Durenan Trenggalek Year 1994. then drawns out higher education at hang tuah surabaya's university naval architecture and ship building engineering on year 1996.

then solves study at tiered 1 UHT on month of May 2001 and direct teaches to become naval architecture and ship engineering regular lecturers UHT 2001 and officiating as department secretary year majors 2004 drawns out study at postgraduate ITS and solves study S2 on month of March 2007. return to UHT to drawn out career as lecturer of UHT' naval architecture and ship engineering, jam it also conjunct on planning bureau unit of work development and UHT' information system thus far.

Bagiyo Suwasono was born in Surabaya, east java, June 23^th 1970. after solves study at 4 senior high school Surabaya Year 1990. then drawns out higher education at hang tuah surabaya's university 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 drawns out study at postgraduate ITS and solves study S2 of year 1999. And drawns 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, jam it also conjunct on planning bureau unit of work development and UHT' information system thus far