Search

KR-20260064192-A - VERTICAL PLANAR MOTION APPARATUS FOR MAKING THE PITCH MOTION OF UNDERWATER VEHICLE AND OPERATION METHOD THE SAME

KR20260064192AKR 20260064192 AKR20260064192 AKR 20260064192AKR-20260064192-A

Abstract

The objective of the present invention, which is to solve the aforementioned conventional problems, is to provide a vertical oscillation device for measuring data on the pitch motion of an underwater moving body and a method of operating the same, which can accurately implement the pitch motion applied to the underwater moving body by using a horizontal movement device that moves each large strut connected to the gauge and dog leg of the underwater moving body horizontally, thereby preventing deformation of the horizontal length of the gauge and strong bag that occurs when driving a large-amplitude vertical oscillation device and maintaining the degree of pitch motion generated in the underwater moving body. To achieve the above objective, a vertical oscillation device for implementing a pitching motion of an underwater moving body according to the present invention is characterized by comprising: an underwater moving body; a plurality of struts each installed at the bow and stern of the underwater moving body; a vertical movement device installed on the plurality of struts to generate a pitching motion in the underwater moving body; and a horizontal movement device that moves the vertical movement device horizontally by a predetermined distance.

Inventors

  • 김연규

Assignees

  • 한국해양과학기술원

Dates

Publication Date
20260507
Application Date
20241031

Claims (10)

  1. Underwater mobile body; A plurality of struts installed respectively at the bow and stern of the above-mentioned underwater vehicle; A vertical movement device installed on the plurality of struts above to generate a pitching motion in the underwater moving body; and Characterized by including a horizontal moving device that moves the above vertical moving device horizontally by a preset distance. A vertical oscillation device that implements the pitch motion of an underwater moving body.
  2. In Article 1, The above underwater mobile body is, A strong bag that fixes and supports the underwater moving body so that movement occurs around a pre-set axis of the underwater moving body; A plurality of measuring gauges connected to the above strong bag and collecting data of the underwater moving body generated by the above pitching motion; and Characterized by including a dogleg connected to the plurality of measuring gauges and the plurality of struts. A vertical oscillation device that implements the pitch motion of an underwater moving body.
  3. In Article 2, The above dogleg is, Characterized by being connected to any one of the plurality of struts and connected to a measuring gauge among the plurality of measuring gauges located in the same direction as the connected strut. A vertical oscillation device that implements the pitch motion of an underwater moving body.
  4. In Article 2, The above dogleg is, Characterized by moving according to the movement of the plurality of struts using a plurality of joints, A vertical oscillation device that implements the pitch motion of an underwater moving body.
  5. In Article 1, The above plurality of struts are, Characterized by moving vertically by the above-mentioned vertical moving device and moving horizontally by the above-mentioned horizontal moving device, A vertical oscillation device that implements the pitch motion of an underwater moving body.
  6. In Article 1, The above horizontal movement device is, Characterized by moving the above-mentioned vertical moving device toward the center of the above-mentioned underwater moving body, A vertical oscillation device that implements the pitch motion of an underwater moving body.
  7. (a) A step of installing multiple struts at the bow and stern of an underwater moving vehicle; (b) a step of moving a vertical moving device mounted on the plurality of struts using a horizontal moving device; and (c) a step of generating a pitching motion in the underwater moving body using the vertical moving device; characterized by including, Method of operating a vertical oscillation device that implements the pitch motion of an underwater moving body.
  8. In Article 7, The above step (b) is, Characterized by further including the step of moving the vertical moving device horizontally by a distance based on the pitch angle according to the pitch motion of the underwater moving body. Method of operating a vertical oscillation device that implements the pitch motion of an underwater moving body.
  9. In Article 8, The above step (b) is, Characterized by moving a plurality of vertical moving devices mounted on each of the plurality of struts equally by a distance based on the driven angle. Method of operating a vertical oscillation device that implements the pitch motion of an underwater moving body.
  10. Characterized by operating using the method of operating a vertical oscillation device for implementing the pitching motion of an underwater moving body according to any one of the methods of operating a vertical oscillation device for implementing the pitching motion of an underwater moving body according to claims 7 to 9. A vertical oscillation device that implements the pitch motion of an underwater moving body.

Description

Vertical planar motion apparatus for making the pitch motion of an underwater vehicle and method of operation thereof The present invention relates to a vertical oscillation device for implementing pitch motion of an underwater moving body and a method of operating the same, and in particular, to a vertical oscillation device for implementing pitch motion of an underwater moving body and a method of operating the same that prevents deformation occurring in a gauge and a strong bag installed on the underwater moving body and having a fixed length when the underwater moving body performs pitch motion with a large amplitude meaning an upper and lower amplitude of 50 cm or more by means of a vertical oscillation device. When a shipyard constructs a new underwater vehicle, a model ship is first built by replicating the exact shape of the vehicle to be constructed. By constructing a model ship, it is possible to conduct tests on the underwater vehicle and determine its basic performance. A conventional vertical motion device, which is one of the measuring devices used during the trial operation process after the construction of a model ship, is a device used to study the forces received in the vertical direction and the resulting motion characteristics of marine structures or underwater vehicles; in particular, it serves to simulate or measure the vertical vibrations received by an underwater vehicle by a fluid during navigation. In addition, conventional vertical oscillation devices can be classified into small-amplitude vertical oscillation devices, which mean that the vertical amplitude of a large strut, one of the components of the vertical oscillation device, is approximately 5 cm, and large-amplitude vertical oscillation devices, which mean that the vertical amplitude of a large strut is 50 cm or more. In the case of conventional small-amplitude vertical motion devices, there was a problem in that it was difficult to generate low-frequency pitch motion, and the test had to be performed with high-frequency pitch motion to satisfy the angle of pitch motion test conditions. To solve these problems, a conventional large-amplitude vertical oscillation device as shown in Fig. 1 was devised. However, in conventional large-amplitude vertical oscillation devices, when pitching motion is applied while the lengths of the gauges and strong bags installed on the model ship are fixed, a problem arises in which deformation occurs in the horizontal lengths of the gauges and strong bags due to the pitching angle generated in the model ship. Figure 1 is a conceptual diagram showing the concept of a conventional small-amplitude vertical oscillation device considering the state of the pitch angle. Figure 2 is a conceptual diagram showing the concepts of the Static Angle of Attack Test and the Pure Pitch Test. FIG. 3 is a conceptual diagram showing the concept of a vertical oscillation device for implementing the pitching motion of an underwater moving body according to one embodiment of the present invention. FIG. 4 is a flowchart illustrating a method of operating a vertical oscillation device for implementing a pitching motion of an underwater moving body according to one embodiment of the present invention. Before describing the present invention in detail, it should be understood that the terms and words used in this specification should not be interpreted as being limited to their ordinary or dictionary meanings, and that the inventor of the present invention may appropriately define and use the concepts of various terms to best describe their invention, and furthermore, that these terms and words should be interpreted in a meaning and concept consistent with the technical spirit of the present invention. In other words, it should be understood that the terms used in this specification are used merely to describe preferred embodiments of the present invention and are not intended to specifically limit the content of the present invention, and that these terms are defined in consideration of various possibilities of the present invention. In addition, it should be noted that in this specification, singular expressions may include plural expressions unless the context clearly indicates a different meaning, and that even if they are expressed in a similarly plural form, they may include the meaning of the singular. Throughout this specification, where it is stated that a component "includes" another component, unless specifically stated otherwise, this may mean that it does not exclude any other component but may include any other component. Furthermore, it should be noted that in cases where it is stated that a component "exists inside or is installed in connection with" another component, this component may be installed in direct connection or contact with the other component, or it may be installed at a certain distance apart, and in the case where it is installed at a certain distance apart, there may be a third componen