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Rabu, 14 November 2012

Fish Boat Lines plan depiction



Fish Boat Lines plan depiction

Object of this study in the form of traditional wooden fishing boats where the manufacture is not use an image kerja.Dikatakan very important, because until now the traditional ships or boats are traditionally built generally done based on traditional patterns.
From various sources it was found that the craftsmen work not based on the traditional boat pictures work / techniques, they work by instinct they have for generations of their ancestors.
In order to calculate the power or the power of an engine is necessary fishing boat lines plan drawing of the ship. Because of the image will be used to determine the amount of power / engine specification is used, the specification of the propeller, and the interaction badang boats and propellers.

The purpose of this activity is to get the ship in the form of line drawings plan and a traditional fishing boat body plan. Taking measurement data is done manually with simple tools in the hope of the craftsmen of traditional boats could easily do so.

From observations in the field, it was decided not to take the data size hull form Dernaga fish in the area, for the following reasons:
1. Detailed shapes CARENA (hull submerged in the water) does not appear, so to see whether or not a characteristic form CARENA should be done under the observation of the water, that is by diving.
2. If done diving, then there is coordination difficulties between divers (in this case the officer who made the observations and measurements) with the registrar on land or in the boat, as it required a special communication tool.
3. In addition, because in the dock area - where the activities of loading and unloading takes place, then the measurement of potentially disruptive activities of loading and unloading activities very large.
4. The boats are usually lean meetings with each other on the dock, so the measurements are not free and even the risk of pinched ships are very large.

From some of these limitations, the data retrieval hull shape size fish in this study to be done on the beach, measurements can only be done in a quick and brief that at low tide.
Conditions sloping beach, do not look any special treatment to the area / land used as a shipyard, for example: leveling, compaction, soil hardening, and so on. Beaches used as-is (naturally) except a bit of cleaning the couch.
On the beach, fishing boats tethered-row lined with ship longitudinal direction perpendicular to the shore with the bow facing the sea (Figure).
Although the coastal land is left as it is, the base line (the baseline) actually kept the ship in a horizontal position, so that the keel laying is beginning a very important ship building (Figure).

Phase Vessel Width Measurement (Form Station - Photo)
1. Determining the reference line (base line) was taken as high as the flat keel, the reference line is drawn under the assumption that the ship even keel.
2. The curvature of the station expressed by a number of points. The number of points depends on the complexity of the form station. The sharper curvature of the curve station needs more point mark. Width given by x1, x2, x3, and so on until Xmax, while highly expressed by y1, y2, y3, and so on up to ymax.
3. Width station (x) measured from the outside of the hull, it is the sheer ease of measurement considerations in the field.
Stages Aft Ship Shape Measurement (Photo)
1. Specifies the zero point at the stern of the ship which is then assumed to be the location of Linggi stern or after perpendicular (AP).
2. Measure the length of the ship from the AP to the bow of the ship, measured to the leading end of the boat (la).
3. Having obtained the long-la, then do (la ') to facilitate the work on the ground, when he divided into ten. This division is intended to determine the location of the station. Each length is marked with chalk on the keel.
4. Can measure the length of part (niche stern) of the AP to the back, measured to the extreme rear of the ship (lb).
5. As with la, lb were rounded to facilitate work in the field, ie when lb 'is divided into three (). If the part can be felt more complex form, the division could be more than three (four, five, and so on.). As with the determination of the station on the main part, the division is to determine the location of the station on a part can.
6. Getting ship shape contour extends from the AP to the next. Measure the height from the base line at the points that have been marked as the location of the station. Assumed to ship even keel, so that base line coincides with the top of the flat keel. (See figure: h1, h2, h3, until h10, and the tip hf).
7. Contour shapes can get part of the AP to the back end. Measure the height from the base line at the points that have been marked as the location of the station on a part can (starting from HK, ha, hb, and hc until the hA).

CONCLUSION repowering FISHING VESSEL



CONCLUSION repowering FISHING VESSEL

1. Conclusion
a. Stages of Implementation Activities and Budget
As of this report is made achievements activities reached 71.2%, delay occurred due to delays in getting the research object Fishing boat, fishing boat engines so that the procurement has been delayed resulting in the completion of the study as a whole has been delayed. The budget for the procurement of ship engines that are in the process of procurement Rp. 80,600,000, -, so that until the report is made, the research project has been merealisaikan Rp. 98,415,000, - or 39,244% of the total funds of Rp. 250.000.000, -.

b. Method of Achieving Target Performance
Method of achieving performance targets is done by the following main phases:
• Survey with the goal of achieving Fish Ship Systems inboard outboard converted to the system.
• Identify the need for ships to get data outturn Ship
• Identification of the ship's speed through the fish before repowering seatrial
• installing engine repowering the boat with inboard system (has not been done yet in the procurement process engine)
• Measuring the speed of the ship after repowering through the sea trial (not yet implemented).




c. Potential Future Development
The constraints use inboard engines for fishing boats with nets circumference (ring), and fishing boats operating in shallow muddy and rocky areas will find a way out and technology solutions best results.
d. Institutional Synergy Program Coordination
Coordination with the local shape / DKP and village associated with licensing, technical discussions and surveys as well as asset management research. Coordination of the plan assets grants to shipowners and DKP are in the process.
e. Utilization Framework Litbangyasa
Results litbangyasa form inboard engine with systems will be provided to owners of fishing vessels at the site of research work that is Bp. Sayidi Banyusangka village Bangkalan DKP Bangkalan Madura involving the submission process.

2. Suggestion
Further research should be considered, especially regarding the use of the system inboard propulsion engines on fishing boats with nets catching ring type (purse seine) to provide solutions to problems of the fishermen are being lodged in the propeller nets.

INTRODUCTION repowering FISHING VESSEL



INTRODUCTION repowering FISHING VESSEL

1. Background
Fishing fleets that have a technology that has been developed is the primary means of support that will enhance fisheries production in the sea.
Most of the fishing fleet, especially in the area of
​​Madura Island Beach and the southern part of the southern coast of Madura is a traditional fishing boat made of wood and the ship was made by traditional craftsmen who keahlianya in making the ship available for generations. Manufacturing procedures are generally done without technology planning, calculations and drawings as what is done by conventional shipyard.
In certain areas on the island of Madura most of the craftsmen have social intuition cultural heritage and the environment is very attached, so as to implement the technology development program on traditional fishing boats are still required prior socialization and phasing. But in most areas south of the island of Madura Coast already exist that can quickly accept new technologies and are not affected by social factors and culture of the local environment so it does not need to go through the stages of development.
Therefore, the development of traditional fishing vessels should be aware of the influence of social attachment issues cultural and environmental areas which will be developed.
Development of technology on traditional fishing fleet can be done not only by means of motorization (marinized), the main engine power (BHP) as appropriate, fishing gear and other innovations but more accurately is to create a model fishing boat (prototype) with appropriate technology use is considered appropriate for a particular area.
Mini Purse Seine Vessel type (Figure) in the waters of the island of Madura is better known as the Ship Tubanan and can be found in the region South Coast and North Coast Madura Madura.

FIG. Purse seine ships with outboard engine system in Banyusangka Bangkalan
This boat shape is similar to a small conventional ship, but the size is still bigger than the boat type and Polokan untul. The boat is also made in the traditional way as well as fishing boats golekan type of construction is paid to the composition and ivory. This type of boat sizes reaching 16-20 m in length, width 2:30 m - 5.00 m and a height of 3.00 m, the main propulsion engine using a modified onshore marine engine outboard engine yangdiletakkan in a position to power 100-120 PS. Positioning Outboard engine of the ship means placed on the deck of a ship with a propulsion system angular position about 30-45 degrees to the direction of movement of the ship.
Besides purse seine fishing boats with outboard drive system has a long propeller shafts and can also be moved up and down through the hinge foundation engine cradle that is located at the stern. Shaft length can reach 5 m move freely without pedestal supported, so that when the machine spins the propeller shaft length occurs very big vibration. Meant long propeller shaft so that the propeller can be submerged to a depth of water required, in addition as to avoid dead air acting on propeller (figure).

FIG. 5 m long propeller shaft rotates freely without pedestal.
In addition to the placement of the engine and propeller shaft inefficient, use a wooden wheel with the size and placement will add to the poor performance of this outboard system (Figure).


FIG. Boats Fish with wood steering Outboard drive system.
While fishing equipment normally used are mini purse seine or gill net, but now that dominates is the kind of mini purse seine and boat crew who took part in opersionalnya can reach 20-30 people.
It can be said that the vessel fishes in the waters around PulauMadura using boat / wooden boats for fishing and collectors of fish in the sea. Most engines driving / main engine mounted as outboard engine (Fig.1) with a foundation of a machine that can be moved vertically (Fig. 2). Consequently there is no synchronization between the effective working of the hull with propulsinya system. Synchronization between the ship's hull, main propulsion engines and propellers are decisive stage in the design or manufacture of the vessel. The selection and placement of the traditional fishing boat propulsion systems both small size (canoe) and the size is rather large (30 GRT), is determined more by factors tradsisi habits and local communities.
Figures 3 and 4, is an example of that in planning and propulsion drive system does not follow the rules of fishing vessels propulsion system that really only rely on tradition.
Consequently, there is no synchronization between the body work effectively with the system drive (propulsion and steering the boat). Technically, there effisiensinya propulsion system is very low resulting in: wasted fuel, vibration, engine lifespan shorter, longer travel times, and if the motion is not good boat. The factors that cause this ship propulsion system is operated above the deck (out board), so the propeller vessel to operate on an inclined plane that is large enough (> 30o); openings stomach caused propulsion system will cause the water to die (dead water) is quite large; placement steering less precise (to the side or in front of the boat propeller).

Fig.1 Fishing boat with a single engine system outboad in Tanglok Sampang.


      Fig.2. Propulsion system can be rotated upwards on a fishing boat outboard systems


Fig.3 Single Engine Outboard boats fish in Branta Pamekasan
       .


FIG. 4 Ships fish nets Ring with Outboard engine system Ganda in Tanjung Sampang
Alignment of the hull form, placement and amount of power an engine, propeller shaft, propeller and rudder are critical steps in the successful creation of a ship. The success of the design and manufacture of boats, at least as indicated by the fulfillment of the desired speed with rendahsehingga fuel consumption and operating costs can be reduced because of the speed boats are met will result in an increase in the catch and secure the quality of the catch.
2. Main Problem
Most of the fishing communities on the coast of Madura uses wooden boats as a means of transportation to catch fish. The type and size of boat that is used varies with capacities between 1-25 GRT. Mover (main engine) mounted on the deck as most outboard engines. Where the angle of the propeller shaft of more than 30 degrees to the surface of the water or the direction of the kapal.Penggerak with such systems in terms of technology there is a significant weakness. Thrust generated by the propulsion system which makes an angle will be smaller when compared with the direct drive system with the movement of the boat (inboard system). As a result, with the same engine power boat with outboard engine speed will be slower when compared to boats with inboard propulsion engines. More wasteful of fuel or shorter cruising range. Besides, the vibration caused by the much larger outboard systems, which resulted in the exhaustion of construction and maintenance costs would be higher.
To get optimal results, then conducted a systematic phasing of activities beginning with the stages of preparation and study literature, stage determination fishing vessel survey as an object of research, planning and implementation repowering, stage evaluation and analysis of the results of sea-trials conducted before and after re-powering.
3. Aims and Objectives
Aims and Objectives repowering boat to fish from Inboard Outboard Boat To Improve Efficiency is researching the effects of changes in the efficiency of the fishing boat with outboard engine system to system inboard.Pengaruh engine change is indicated by a change of pace from the fishing vessel seatrial.
4. Methodology
This study begins with a survey of fishing vessels that have sizes 1-25 GRT outboard drive system. The determination made after extensive research object to lack of socialization that occurs in outboard propulsion system. The test drive system Seatrial be carried out in two stages, stage 1 prior to the modification of drive system and stage 2 after the modification drive system (repowering). Analysis of the results seatrial will provide solutions to the use of outboard propulsion systems and disseminated to fishermen.

Locus of Activity: What research activities focused on the island of Madura, East Java. In PKPP program in the area of
​​Java 2 corridor.

Activity Focus: The focus of the research is Shipping, Sector focus: Technology and Transportation Management

Forms of activity: research in the form of activities in door and out door, namely:
- Study the literature and research preparation
- Internal coordination meetings and coordination with relevant agencies
- Field Survey
- Implementation of modifications board field
- Seatrial
- Analysis of the results of research
- Administration and preparation of the activity.

Senin, 29 Oktober 2012

The testing procedure WISE-8

The testing procedure WISE-8

Testing was conducted at a height of 11 cm and 22 cm above the surface of the test tank. Model wise rigidly suspended (fixed) under the train pull (towing carriage) with the hearing aid in the form of frame hook / clamp (supporting frame). Then pull the wagon driven by electric motors throughout the test tank at a specified speed. When the test speed is reached, then the model is removed from the frame hook through the hydraulic system.

Measurements were taken at the time the model is released and dropped onto the surface of the water until the model reaches steady state (stationary). Testing and measurement according to a series of trials testing program described above.




 NO
VARIASI
KETINGGIAN
(m)
VARIASI
SUDUT
(deg)
VARIASI
KECEPATAN
(m/s)
1
11
0
0,  3.89,  4.86,  5.83,  6.89
2

5
0,  3.89,  4.86,  5.83,  6.89
3
22
0
0,  3.89,  4.86,  5.83,  6.89
4

5
0,  3.89,  4.86,  5.83,  6.89