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[技术] 造船技术:自己建造一条小船

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发表于 2013-10-15 10:24:48 | 显示全部楼层 |阅读模式
本帖最后由 logo 于 2013-10-15 10:27 编辑

造船技术:自己建造一条小船

船的龙骨制作:

造船技术

造船技术


龙骨托架是不可少的.

造船技术

造船技术


造船技术

造船技术

 楼主| 发表于 2013-10-15 10:25:32 | 显示全部楼层

造船技术

造船技术

The chine is clamped in position while it is sprung around the frames to determine the correct angles for the frame notches. It is imperative that the chine mate firmly in the notches and does not merely bear on one corner of the frame.

造船技术

造船技术

The builder is shown using a scrap of plywood as a jig to determine the set-back of the chine from the forward edge of the stem. The stem will eventually be "faired" or beveled so the line formed by the chine will extend to the centerline of the stem. If the design utilizes a chine blocking member, as this one does, it may be necessary to adjust the chine blocking to compensate for the thickness of lumber you are using. Without chine blocking, the position (up or down) of the chine on the stem is determined by allowing the chine to take a smooth (fair) bend around the framework. Although the exact height can vary, the opposite chine should be at the same height.


 楼主| 发表于 2013-10-15 10:25:54 | 显示全部楼层

造船技术

造船技术

Fitting the chine at the stem is accomplished as shown. Be sure to leave the chine long. Allow it to extend beyond the transom as subsequent fitting may require it to be moved forward.

造船技术

造船技术

The stem should be braced to prevent movement when installing the chine. Chine (and sheer) lumber should be carefully selected for straight grain. Often the screw in the forward frame is left out when springing the chine into position. This eliminates the tendency of the chine to break at this point. The screw will be driven in when the planking is applied. The chine and all subsequent longitudinal members will be both fastened and glued in position.


 楼主| 发表于 2013-10-15 10:26:45 | 显示全部楼层

造船技术

造船技术

The notches for the sheer (or sheer clamps) must be angled as was done for the chine. In some cases the sheer is built up from two laminations. It is imperative that the sheer members be set in vertically from midship forward. Attemping to twist and bend them to fit the planking contour will frequently cause them to break. Later in the fairing process the sheer will be beveled so that the planking will mate on a flat surface.

造船技术

造船技术

The sheer has been angled to butt properly to the stem and is now glued and fastened to the breasthook. Again, leave the sheer long until it is properly fitted to the stem.
 楼主| 发表于 2013-10-15 10:27:44 | 显示全部楼层

造船技术

造船技术

FAIRING: It will be necessary to "fair" the various longitudinals. One method is to file a notch conforming to the frame contour at each frame along the chine, sheer, and keel. The angle of intermediate notches can be determined by using a straight edge across members and gradually adjusting the notch until the straight edge rests on flat surfaces.

造船技术

造船技术

FAIRING: These longitudinal members are then planed to match the angle of the notches. Be sure that the resultant surface is "fair", without humps or dips.

 楼主| 发表于 2013-10-15 10:28:06 | 显示全部楼层

造船技术

造船技术

FAIRING: A line is drawn from the frame closest to the stem, or the next aft frame, to the center of the chine at the stem. The portion above this line must faired to provide a flat surface for the bottom planking to mate to. The side planking will be fastened to the portion below this line. In most instances, the chine will follow the angle of the side frames so that fairing the chine for the side planking is unnecessary.

造船技术

造船技术

FAIRING: Any minor discrepencies must be faired out of the frames. In planing boats, it is imperative that the longitudinal lines in the aft section be straight lines. Use a straight edge to determine fairness. Curved lines on a planing boat can cause "porpoising", or to ride bow down. Although this effect does not occur on displacement boats, lines should be fair for esthetic reasons and unfair lines will have some effect on performance.


 楼主| 发表于 2013-10-15 10:28:33 | 显示全部楼层

造船技术

造船技术

FAIRING: To insure that the longitudinal lines are smooth, even, fair curves, stand back occasionally and sight along the area being faired. Dips and humps must be removed. If necessary another thin piece of wood can be glued into low spots and the area re-faired.

造船技术

造船技术

FAIRING: A short length of plywood is used to check the fairing in the forward portion of the boat. Considerable material may have to be removed along the stem to provide a solid landing for the bottom planking. Note that sheet planking will naturally bend to form a convex surface.


 楼主| 发表于 2013-10-15 10:29:17 | 显示全部楼层

造船技术

造船技术

FAIRING: A short length of plywood is also used to check the fairing for the side planking.

造船技术

造船技术

PLANKING "PATTERN": Fitting the planking is easiest done by leaning the panel against the side of the boat and roughly marking to shape. Don't leave any more material overhanging than necessary as scraps may be utilized in other parts of the boat. Note: We are frequently asked, "Where are the planking patterns?" In frame construction, minor differences in frame spacing would make patterns useless. The boat itself is the pattern.


 楼主| 发表于 2013-10-15 10:29:52 | 显示全部楼层

造船技术

造船技术

All mating surfaces are coated with glue. A paint roller works well for this purpose. Follow the glue manufacturer's instructions and fasten panels in place before the glue sets as a good bond is imperative.

造船技术

造船技术

Usually several locating screws are used to position the panel while fitting and drilling for screws. The planking is fastened to the longitudinals, stem and transom only; not to the frames. After fitting and drilling, the panel is removed and all mating surfaces are coated with glue. The panel is then screwed in place. NOTE: The plywood panels shown in many of these photos are full length; it is more common to use standard 8' panels and join them with scarf joints or butt blocks.


 楼主| 发表于 2013-10-15 10:30:16 | 显示全部楼层

造船技术

造船技术

After the first side panel is installed the excess along the stem is sawn off and planed smooth so that the second side will lap the first side. Here the builder is trimming the second side which will then be faired to match the first side.

造船技术

造船技术

BUTT BLOCK: Side and bottom planking usually require a junction to make the panels long enough. Although scarf joints can be used, the more common method is to use a butt block. Butt blocks are usually the same thickness of the planking being used. The joint is always madebetween the frames (not on the frames) in as flat an area as possible. Note that separate butt blocks are fitted between the battens. The planking is temporarily held in place, holes drilled into the butt blocks, the first planking section removed, and the butt blocks glued and fastened to the planking. The next planking section is installed after the first in glued and fastened in place, gluing and fastening to longitudinals and butt block.


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