2012/09/03
Method of manufacturing lines plan fishing boat
Method of manufacturing lines plan fishing boat
Preliminary
In this study the size of data retrieval hull form is one very important step, given a model of the ship will be built and tested, so that the hydrodynamic properties of the model should be close to the properties of the original ship / real.
Said to be 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 traditional boat craftsmen work is not based on working drawings / engineering, they work by instinct they have for generations of their ancestors.
Observations at the Port Kalimas, Surabaya
Kalimas harbor cruise port is located at the mouth of the people who Kalimas river in Surabaya. Most of the ships that perform loading and unloading at the port are the ships that serve the shipping routes to and from the island of Borneo, Sulawesi and other islands in the eastern part of Indonesia.
From observations in the field, it was decided not to take the data size Phinisi hull shape in the port area, the port Kalimas particular, 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, as in the harbor 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 in the dock port, so the measurements are not free and even the risk of pinched ships are very large.
From some of these limitations, the data retrieval Phinisi hull shape size in this study should be done on the ground, the measurements can only be performed on ships going up the dock (improvements on land) and on the ships that were under construction.
Artisans Center of Traditional Boats in the district. Bulukumba, South Sulawesi
Bulukumba is a district in the capital of South Sulawesi province. It is located about two hundred kilometers east of the city Ujungpandang. While Tana Beru is a village in Bulukumba predominantly earn their living in traditional shipyards that exist in the village. Therefore, the village was designated by the government as one of the centers of traditional craftsman ship in the South Sulawesi. Tana Beru selected as one of the location of the object of this study because of the following considerations:
1. Is currently a lot of construction work of new ships and several ship repair work at this place.
2. The type and size of vessels built or done here is very diverse, such as fishing vessels, ships of all types and sizes, ferry (ferry) and so on.
3. Several craftsmen in this area have often received orders to make a replica of the ancient ship overseas. So some of them already have the ability to read engineering drawings modern shipping (at least modest).
4. A collaborative research project between the University of Hasanuddin (in this case the Faculty of Engineering, Shipping) and Department of Transportation (Bureau Classification Indonesia) ever held here. So at least they are more open to the scientific activities of this kind.
5. As a center for traditional craftsmen ship, this area often received visits local and foreign tourists, so that they are accustomed to receiving "foreigners" in their area.
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.
A paved road, although not too wide but enough to pass a truck-sized (size ¾), so it helps transport raw materials such as ship construction: wood and other production support. This road separating the areas along the whole coast shipyards with residential areas (Fig. I).
Shipyards are located along the coast. The area is divided beach / criss-crossed tenure based shipyard. Ships built-row lined with ship longitudinal direction perpendicular to the shore with the bow facing the sea.
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 (Fig. II).
Gb. I
Gb. II
Phase Vessel Width Measurement (Form Station - Fig. III)
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.
Aft Ship Shape Measurement Stages (Fig. IV)
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 Ah).
Gb. III. The points Vessel Width Measurement (Form Station)
Gb. IV. Measurements dots Aft Ship
Ships That Will Determine Measured
Based on the analysis of the needs of the use of the ship, the ship that will take the data and measured the shape stomach (CARENA) is having the following criteria:
1. Phinisi type or combination atara Phinisi and Lambo (commonly called Lampi)
2. Tonnage of about 150 tons
3. Hull shape (CARENA) is complete, has reached at least the deck line of a minimum condition of 90% or so.
In addition to the criteria above, the implementation of the measures there are several things that must be considered, namely:
1. Data collection and retrieval size should not be or not to interfere with the activities of the workers who are working.
2. Having a space (space) is sufficient, so that the points to be measured (see Fig. III and Fig. IV) can be achieved safely and be well documented.
3. Sketching the details of parts of the hull and its perceived need size.
Pay attention to the things mentioned above, found 2 (two) Remove the ship, one built in the shipyard owned by Haji Damang and another at the shipyard owned by Haji Baso. There are some limitations when measuring the ship is in dry dock Haji Damang, namely: the space was too narrow and access to up-down at the time of measurement difficult. So it was decided to collect data on the size of ships being built at the shipyard owned by Haji Baso.
Postscript
Capacity (tonnage) ships can not be known with certainty, because traditionally these artisans do not have a certain empirical formula used to calculate the ship's main measures, such as length (L), width (B) and high (H) if there subscribers (clients) who want to made a ship with a capacity (tonnage) specific).
The craftsmen are working on instinct and experience of generations, so if there are orders for ships sebasar X tons, then by itself a craftsman - in this case the owner of the shipyard - was able to estimate how big the size of the main ship to be built, even can estimate the size of the timber to be used for the keel.
Preparation Vessel Measurement
The tools are used:
• Metered (short - 10 m and length - 100m)
• Rope / yarn
• The pendulum weights (lot)
• Chalk board
• Galah from wood or bamboo straight
• Notebook
• Water pas
• Stationery (pens, markers, measurement tables, etc.)
To speed up the measurement as well as to reduce the error it takes at least 3 (three) persons in these activities, namely:
# 1. Regulatory thread length, thread length and duty to set the pendulum position for the right to rule that serves as a base line
# 2. Gauge length of yarn, yarn length measuring charge after officers # 1 marks the measurement results - notify the clerk # 3
# 3. Registrar, assigned to record the measurement results into a table that has been prepared
From Gb V. seen that in the measurement, the officer must be able to reach the # 1 positions as follows:
1. Position bottom, the bottom of the ship
2. An upright position, which is the side of the ship
3. The position of the # 1, which is the upper part of the ship that you can reach Perancak (Stager)
4. Position the # 2, which is the upper part of the ship that can not be reached by Stager, the officer using the pole. Thread linked at the end of the pole can be set in such a way that the length of the. Similarly, the end of the tape measure at the end of the pole so that the associated long threads can be directly known.
Gb. V. Several Positions Decision Dimensions
Executive Summary
Generations, traditional wooden boat building is not equipped with planning, calculations and technical documents as well as the construction of a modern ship. In fact, to test hydrodynamic ship models in the pool, it takes the technical specifications of the vessel to be studied hidrodinamikanya characteristics. Such specifications include: geometric shape hull, hydrostatic parameters, and other information required as input data.
It is therefore necessary to measure to get the hull geometric data and to establish the technical assumptions that may be required in the study hydrodynamic characteristics of these vessels. The data is then used to design or re-drawing of a traditional boat.
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