FIELD: apparatuses of underwater acoustic counteraction used for submarine simulation. SUBSTANCE: screw propeller in the self-propelled submarine simulator is made as an extended inner propeller shaft, secured on which are the propellers of the first sense of rotation and of the second sense of rotation, which additionally carries two radially extending attachments of propellers of the outer shaft; the other ends of each propeller of the outer shaft are attached to the outer race of the respective bearings; besides the bearing inner races are secured on the extended inner shaft; the propellers of the inner shaft and propellers of the outer shaft alternating are located along the entire length of the extended inner shaft; the distance between the propellers of the first - second senses of rotation is the same, and the number of pairs of propellers of the first-second senses of rotation determining the value of shaft extension equals n2/n1, where n1 is the rpm of submarine propellers for the selected speed of employment of simulator of the preset submarine design; n2 is the rpm of propeller shafts of the self-propelled submarine simulator of the preset design, corresponding to the selected speed. EFFECT: enhanced truth of simulation of primary underwater acoustic field of submarine. 1 dwg
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机译:领域:用于潜艇模拟的水下声对抗装置。实质:自推进式潜艇模拟器中的螺旋推进器被制成为延伸的内部推进器轴,固定有第一旋转方向和第二旋转方向的螺旋桨,该螺旋桨还带有两个径向延伸的螺旋桨附件外轴;外轴的每个螺旋桨的另一端分别连接到相应轴承的外圈上。此外,轴承内圈固定在延伸的内轴上。内轴的螺旋桨和外轴的螺旋桨交替布置在延伸的内轴的整个长度上。第一至第二旋转方向的螺旋桨之间的距离相同,并且第一至第二旋转方向的螺旋桨的对数(确定轴延伸值)等于n 2 Sub> / n 1 Sub>,其中n 1 Sub>是潜水艇螺旋桨的转速,用于选择预设潜水艇设计模拟器的使用速度; n 2 Sub>是预设设计的自行式海底模拟器的螺旋桨轴的rpm,与所选速度相对应。效果:增强了潜艇初级水下声场模拟的真实性。 1载重吨
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