Catamaran sheet body design method and catamaran produced by using same

Abstract

The invention provides a catamaran sheet body design method relating to the technical field of ship equipment and a catamaran produced by using the same. The design method comprises the following steps: symmetrically arranging two separate sheet bodies relative to the vertical center plane of the catamaran body along the length direction of the catamaran; setting the sheet body contour line of each separate sheet body encircled in a horizontal direction to be composed of a first sheet body arc and a second sheet body arc connected with each other and to be spindle-shaped; setting two sharp ends of the sheet body contour line to sequentially be a sheet body head end and a sheet body tail end from front to back along the length direction of the catamaran, and connecting the sheet body head end with the sheet body tail end by a straight line to form a sheet body head end and tail end connecting line; making the first and second sheet body arcs to be asymmetrically arranged relative to the sheet body head end and tail end connecting line. The catamaran provided by the invention can be used as scientific surveying ships, unmanned surface vehicles, passenger ships and the like; the catamaran can be ensured to have small unit area drainage frictional resistance and small unit area drainage residual resistance at low and high navigational speeds.

Description

technical field [0001] The invention relates to the technical field of ship equipment, in particular to a method for designing a catamaran hull and a catamaran produced by the method. Background technique [0002] The small waterplane area catamaran is a new concept ship type. A conventional small waterplane area catamaran includes a barge and two hulls fixed under the barge, such as figure 1 As shown, the sheet body 51 includes a support column 52 fixedly connected to the barge and a torpedo-shaped sheet part 53 fixed below the support column 52, and the torpedo-shaped sheet part 53 bears the main displacement. With some improvements, the number of torpedo-like flap parts or the number of struts of a conventional small waterplane area catamaran is greater than two. The special structure of the small waterplane area catamaran makes it have a smaller waterplane area-displacement volume ratio parameter compared with ordinary monohulls and catamarans. The biggest advantage of...

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method for designing a catamaran hull and a catamaran produced by the method, which are used to solve the problem of unit displacement of conventional small waterplane area catamarans. Frictional resistance and unit displacement residual resistance cannot be reduced at the same time, so it cannot be applied to the problem of sailing at various speeds

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