EP4168306A1 - Schwimm- oder tauchkörper zur akustischen ortung, insbesondere für die minenjagd - Google Patents
Schwimm- oder tauchkörper zur akustischen ortung, insbesondere für die minenjagdInfo
- Publication number
- EP4168306A1 EP4168306A1 EP21733396.2A EP21733396A EP4168306A1 EP 4168306 A1 EP4168306 A1 EP 4168306A1 EP 21733396 A EP21733396 A EP 21733396A EP 4168306 A1 EP4168306 A1 EP 4168306A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- floating
- axis
- diving body
- rotation
- flywheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G7/00—Mine-sweeping; Vessels characterised thereby
- B63G7/02—Mine-sweeping means, Means for destroying mines
- B63G7/08—Mine-sweeping means, Means for destroying mines of acoustic type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
- B63G2008/002—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations unmanned
- B63G2008/005—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations unmanned remotely controlled
Definitions
- the invention relates to a floating or diving body, in particular for mine hunting.
- Mines are cleared, for example, by divers or by vehicles manned by divers.
- the disadvantage here is that people are directly in a danger area and there is a risk of injury or death.
- technologies are increasingly being developed in order to dispense with personnel deployment directly on site at the mine.
- UUV unmanned underwater vehicles
- a separate floating or diving body in particular from a surface vehicle or from a helicopter, is usually lowered into the water on a cable.
- This floating or diving body has a device for the acoustic location of the underwater vehicle.
- the position of the unmanned underwater vehicle can be determined using active sonar.
- the orientation of the floating or diving body and thus of the device for acoustic location in space must be known.
- magnetic and position sensors are usually used, which are built into the housing of the floating or immersed body.
- These floating or immersion bodies have, for example, a cylindrical basic shape. This can lead to the floating or diving body being set in rotation.
- Magnetic sensors are typically used to determine the azimuth component of the orientation. Time delays caused by the principle in the measurement of the orientation then result in the rotation of the floating or diving body to an error in the relative bearing from the floating or diving body to the underwater vehicle, which increases with increasing angular rate. Even the smallest angle errors (at a measuring distance that is usually several 100 m) lead to a significant deviation between the real position of the unmanned underwater vehicle and the determined position.
- the object of the invention is to prevent or at least reduce the rotation of a floating or diving body.
- the floating or diving body according to the invention for mine hunting has a housing, the housing having rotational symmetry.
- the floating or immersion body itself usually does not have any rotational symmetry, since, for example, sensors, fastening devices may only be present once and are not necessarily arranged on the axis of symmetry. It is only essential that the housing itself has a basic shape which has rotational symmetry.
- the rotational symmetry of the housing easily leads to the floating or immersion body being set in rotation. Examples of basic shapes of housings for floating or immersion bodies are greatly simplified and exemplarily cylinders, for example also a hexagonal prism, teardrop shape, hemisphere with an attached cone and the like.
- the housing has an axis of symmetry, the housing being rotationally symmetrical about the axis of symmetry.
- the floating or diving body has at least one first hydroacoustic transmitting and receiving device.
- a hydroacoustic transmitting and receiving device within the meaning of the invention is to be interpreted broadly and includes active sonar and passive sonar.
- the floating or diving body can have an underwater communication device, which is a wired Communication made possible, in particular by means of a fiber optic cable.
- the hydroacoustic transmitting and receiving device is preferably arranged on the underside of the floating or diving body, in particular a communication buoy.
- the hydroacoustic transmitting and receiving device is arranged hemispherically on the underside of the floating or diving body.
- the floating or diving body has a flywheel, the flywheel being rotatable about an axis of rotation.
- the axis of rotation is arranged perpendicular to the axis of symmetry of the floating or immersion body.
- a rotating mass has angular momentum.
- a rotation around the axis of the angular momentum is not affected. Rotation around another axis is suppressed by the angular momentum.
- the greater the stored angular momentum the greater the degree of suppression.
- the angular momentum therefore counteracts a rotation around the axis of symmetry perpendicular to the axis of symmetry. This prevents or slows down the rotation of the floating or diving body around the axes perpendicular to the angular momentum.
- the floating or diving body has a flywheel, the flywheel being rotatable about an axis of rotation.
- the axis of rotation is arranged parallel to the axis of symmetry of the underwater device. This arrangement avoids tilting if the floating or diving body is on the surface of the water.
- the floating or diving body has a first flywheel and a second flywheel.
- the first centrifugal mass is rotatable about a first axis of rotation, the first axis of rotation being arranged perpendicular to the axis of symmetry of the underwater device.
- the second centrifugal mass can be rotated about a second axis of rotation, the axis of rotation being arranged parallel to the axis of symmetry of the underwater device.
- the floating or diving body has a first flywheel and a third flywheel.
- the first flywheel is rotatable about a first axis of rotation, the first axis of rotation being arranged perpendicular to the axis of symmetry of the underwater device.
- the third centrifugal mass can be rotated about a third axis of rotation, the axis of rotation being arranged parallel to the axis of symmetry of the underwater device and perpendicular to the first axis of rotation.
- the mass of the flywheel is 1% to 50%, preferably 10% to 20% of the total mass of the floating or diving body.
- the flywheel has an angular momentum of 0.1 to 100 , preferably from 0.5 to.
- the flywheel is connected to a rotary drive.
- the rotary drive is preferably an electric drive.
- the centrifugal mass can be set in rotation by an external drive before the floating or diving body is deployed, but this drive is not part of the floating or diving body.
- This embodiment simplifies the floating or immersion body. Due to the inevitably occurring losses, however, a comparatively high flywheel mass with a comparatively high rotational speed should be selected.
- the floating or diving body is submersible, thus a diving body.
- the immersion body is particularly preferably brought into the water from a ship or from a helicopter on a cable and is completely submerged there. For this application, the immersion body is preferably trimmed in such a way that its mass is greater than its total buoyancy.
- the first hydroacoustic transmitting and receiving device has a sonar antenna.
- the sonar antenna is preferably used to locate an unmanned underwater vehicle for mine hunting by means of active sonar.
- the floating or immersion body has a cylindrical basic shape. Cylinders with a polygonal cross-section are also called prisms.
- the floating or diving body has a basic shape which is conical.
- the cone can also be a truncated cone.
- the float or immersion body has a hemispherical shape on the base of the cone.
- the axis of symmetry is arranged vertically and the axis of rotation is arranged horizontally. Horizontal is parallel to the water surface, perpendicular is perpendicular to the water surface.
- the floating or diving body has an above water communication device, wherein the
- Above water communication device is designed for laser communication, for communication with a satellite, for radio communication or for wired communication.
- the idea according to the invention can also be applied to a launching device which is roped down from a helicopter in order to set down an unmanned underwater vehicle (UUV) for mine hunting.
- UUV unmanned underwater vehicle
- the situation here is analogous to the immersion body.
- the settling device is heavier than air and will turn on a rope lowered from the helicopter.
- the surrounding fluid is air instead of water. Due to the air movement generated by the main rotor, the effect is even stronger here.
- the friction that occurs in air is very much lower, so that an elongated releasing device that is not rotationally symmetrical is also very easily set in rotation.
- a corresponding launching device therefore has a flywheel, the flywheel being rotatable about an axis of rotation, the axis of rotation being arranged perpendicular to the setting down direction and thus parallel to the water surface (in an idealized rest position). Further training, in particular on the flywheel, its angular momentum and the use of a second flywheel are advantageous further training here as well.
- FIG. 2 A schematic cross section through an immersion body.
- FIG. 3 A schematic cross section through a floating body
- FIG. 1 the mine hunting method is shown in a greatly simplified schematic.
- a ship 10 exposes an unmanned underwater vehicle 30 which approaches a mine 20.
- the ship 10 has lowered a diving body 40 into the water.
- This immersion body 40 is shown in FIG. 2 in a schematic cross section.
- a hydroacoustic transmitting and receiving device 70 is located at the lower end of the immersion body 40.
- a flywheel 50 is arranged in the immersion body 40 and is set in rotation by a rotary drive 60.
- the immersion body 40 has, for example, a cylindrical basic shape with a round cross section, so that the rotational symmetry of the housing of the communication buoy 40 runs vertically in the example shown.
- the rotation of the flywheel 50 takes place around an axis of rotation which is arranged horizontally in the plane of the drawing.
- the axis of rotation is thus arranged perpendicular to the axis of symmetry.
- a floating body 42 is shown.
- the housing of the floating body 42 has a hemispherical shape at the lower end, in which the hydroacoustic transmitting and receiving device 70 is arranged.
- the housing has a spherical section in which a first flywheel 50 and a second flywheel 52 are arranged, the first flywheel 50 having an axis of rotation which is arranged horizontally in the plane of the drawing, the second flywheel 20 having an axis of rotation which is perpendicular to the plane of the drawing. Both axes of rotation are thus perpendicular to the axis of symmetry of the housing of the floating body 42.
- an above water communication device 80 is arranged, which is designed for laser communication with a ship 10, for example.
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Toys (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020116238.3A DE102020116238A1 (de) | 2020-06-19 | 2020-06-19 | Schwimm- oder Tauchkörper zur akustischen Ortung, insbesondere für die Minenjagd |
| PCT/EP2021/065632 WO2021254874A1 (de) | 2020-06-19 | 2021-06-10 | Schwimm- oder tauchkörper zur akustischen ortung, insbesondere für die minenjagd |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4168306A1 true EP4168306A1 (de) | 2023-04-26 |
Family
ID=76522936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21733396.2A Pending EP4168306A1 (de) | 2020-06-19 | 2021-06-10 | Schwimm- oder tauchkörper zur akustischen ortung, insbesondere für die minenjagd |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4168306A1 (de) |
| AU (1) | AU2021292366B8 (de) |
| DE (1) | DE102020116238A1 (de) |
| WO (1) | WO2021254874A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021213745A1 (de) | 2021-12-02 | 2023-06-07 | Atlas Elektronik Gmbh | Unterwasserfahrzeug zur Zerstörung von Seeminen |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB536031A (en) | 1939-11-03 | 1941-04-30 | Nicolai Minorsky | Anti-heeling device for ships, airships and the like |
| DE3908578A1 (de) * | 1989-03-16 | 1990-09-20 | Laukien Guenther | Verfahren zum beeinflussen einer schallquelle, insbesondere eines getauchten unterseebootes und unterseeboot |
| US6807921B2 (en) * | 2002-03-07 | 2004-10-26 | Dwight David Huntsman | Underwater vehicles |
| DE102012006566A1 (de) | 2012-03-30 | 2013-10-02 | Atlas Elektronik Gmbh | Verfahren zur Detektion von Seeminen und Seeminendetektionssystem |
| GB2508399B (en) | 2012-11-30 | 2015-04-29 | Univ Southampton | Marine vehicle using a gyroscopic system to generate power for a propulsion system |
| CN110304224A (zh) * | 2019-04-15 | 2019-10-08 | 清华大学 | 侧推潜航器及潜航方法 |
-
2020
- 2020-06-19 DE DE102020116238.3A patent/DE102020116238A1/de active Pending
-
2021
- 2021-06-10 EP EP21733396.2A patent/EP4168306A1/de active Pending
- 2021-06-10 AU AU2021292366A patent/AU2021292366B8/en active Active
- 2021-06-10 WO PCT/EP2021/065632 patent/WO2021254874A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020116238A1 (de) | 2021-12-23 |
| AU2021292366B2 (en) | 2024-01-04 |
| AU2021292366A1 (en) | 2022-08-25 |
| WO2021254874A1 (de) | 2021-12-23 |
| AU2021292366B8 (en) | 2024-01-25 |
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Owner name: TKMS ATLAS ELEKTRONIK GMBH Owner name: THYSSENKRUPP AG |