The invention discloses a construction method for a datum line of a straight main board in ship building, which comprises the following steps that the main board is fromed by splicing and welding in a segmented building stage, a first absolute datum line is marked by taking a margin-free edge of the main board as a datum, the distance between the first absolute datum line and the margin-free edge of the main board is set as a preset value, a first point and a second point on the first absolute datum line are determined, the distance between the first point and the first end of the main plate is the preset value, the distance between the first point and the second point is b, an arc is made on the main plate with the first point as the circle center and a as the radius, an arc is made with the second point as the circle center and c as the radius, the two arcs intersect at a third point, a<2> + b<2> = c<2>, a second absolute datum line passing through the first point and the third point is marked on the main board, the second absolute datum line extends from the third end of the main board to the fourth end of the main board, the first absolute datum line is translated by L1 to mark a first auxiliary datum line, and the second absolute datum line is translated by L to mark a second auxiliary datum line.
本发明公开了一种船舶建造中的平直型主板的基准线施工方法,在分段建造阶段拼焊出主板,以主板的无余量边为基准划出第一绝对基准线,第一绝对基准线距离主板的无余量边为预设值,在第一绝对基准线确定第一点和第二点,所述第一点距离所述主板的第一端为所述预设值,所述第一点和所述第二点距离为b,以所述第一点为圆心、a为半径在主板上做圆弧,以第二点为圆心,c为半径做圆弧,两个圆弧相交于第三点,其中,a2+b2=c2,在主板上划出过所述第一点和所述第三点的第二绝对基准线,所述第二绝对基准线从所述主板的第三端延伸至所述主板的第四端,将所述第一绝对基准线平移L1划出第一辅助基准线,将所述第二基准线平移L划出第二辅助基准线。
Construction method for datum line of straight type main board in ship building
一种船舶建造中的平直型主板的基准线施工方法
2021-11-19
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
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