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一、前言 K48E柴油机原设计最大功率为6000马力,最高主机转速为1900转/分,第一阶段设计指标是在主机转速1750转/分时最大功率为5100马力。为缩短试验周期,决定利用现有的按装MD872主机的“M”艇(主机马力3×3510匹)换装K48E主机,该艇称为“K”艇。“M”艇为装有双楔形板的艇型,双楔形板在艇上安装的简图见图1,该艇由于安装了双楔形板使艇在设计航速的阻力降低3～13％,图2为“M”艇原型与安装双楔形板艇阻力对比试验曲线。
First, foreword K48E diesel engine original design maximum power is 6000 horsepower, the highest host rotational speed is 1900 rev / min, the first stage design target is the host engine rotational speed 1750 rev / min when the maximum power is 5100 horsepower. In order to shorten the test cycle, it was decided to replace the K48E mainframe with the existing “M” (main engine horsepower 3 × 3510 horsepower) equipped with MD872 mainframe, which is called “K”. “M” boat is equipped with double wedge plate boat model, double wedge plate diagram of the boat installed in Figure 1, the boat due to the installation of a double wedge boat so that the boat at design speed of resistance reduced by 3 to 13%, the figure 2 for “M” boat prototype and installation of double wedge boat resistance comparison test curve.