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船的阻力近似计算方法很多，在渔船阻力计算中，我们经常采用的是“日本渔船有效马力估算图谱——中村樟一法”和艾亚法。使用前者，对钢质渔船一般不必另加因考虑海浪、河底、风力等裕度(后者需加)，估算结果较准确，但此方法比较繁琐。1963年日本伊藤氏对此法进行了改制和简化，但用人工算，还是较复杂。因此我们将此法编制了程序，并举例加以说明。 相似文献
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本文以青岛拖网更新渔船为实例，运用“一种简易的拖网渔船主要参数的优化法”，来确定L(船长)、B(船宽)、T(吃水)、D(型深)、4(排水量)、CB(方形系数)、[FC](鱼舱满载鱼量)、HP(马力)等8个主要参数。本文又将本船与其他同类型渔船进行了经济分析比较，得出经过优选后的渔船方案，将比过去同类型渔船，在经济上有较明显的提高。 相似文献
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This article presents the evolution from the virgin building of domestie light boat to its development and innovation, involving its relative comparision with the Japanese light boat, from which our light boat is obviously superior in general arrangement. It has been shown through the operation for over 10 years that the light boat, in addition to comfortable living condition available, creates an important condition in which by only simply closing the watertight door can the crew enter all the space like wheel house, engine room, accommodation, etc. through internal passage during vile weather. It has thus guaranteed normal work and living for the crew as well as ““free movement““ for the small boat at the vast sea. 相似文献
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