A multi-boat distributed drag measurement device

Abstract

The present application belongs to the technical field of multi-boat resistance measurement, and discloses a multi-boat distributed resistance measurement device, which comprises a trailer, at least one set of longitudinal main racks arranged in parallel, and a connecting rod connecting the trailer and the longitudinal main racks to drive the longitudinal main racks to move. Each set of longitudinal main racks comprises two parallel beams, and the parallel beams are provided with main rack sliding rails. A plurality of sets of transverse sub-racks are arranged on the main rack sliding rails to slide thereon. Each set of transverse sub-racks is connected with a guide rod, a sensor and a guide wheel unit. The guide wheel unit comprises a guide wheel and a steel wire rope. One end of the steel wire rope is connected to the sensor, and the other end is connected to a ship body after being guided by the guide wheel. The guide rod is used for limiting the transverse movement of the ship body. A first locking member is used for locking the position of each set of transverse sub-racks. The present application can simulate different distribution forms of multi-boats, and can measure and study the resistance changes under different distribution arrays, thereby meeting the multi-boat distributed resistance test requirements.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of multi-boat resistance measurement, and more particularly relates to a multi-boat distributed resistance measurement device. BACKGROUND

[0002] The geese fly in "person" and "one" array in the sky, and the fish swim in groups in the water, which can save energy consumption for the whole group. For civil ocean-going transport ships, formation navigation can not only reduce energy consumption and carbon emissions, but also produce huge economic benefits. For unmanned boat groups performing sea tasks, formation navigation can also save energy consumption and improve the task radius.

[0003] In order to study the resistance changes of ships under different formation distribution forms and provide a basis for formation navigation research, model test is the most reliable and direct way. The conventional towing pool laboratory is limited by the size and position of the existing towing system test bridge, and it is difficult to measure the distributed resistance of multiple boats. The present application provides a multi-boat distributed resistance measurement device. SUMMARY

[0004] In view of the above defects or improvement needs of the prior art, the present application provides a multi-boat distributed resistance measurement device, which can simulate different distribution forms of multiple boats, and thus can measure and study the resistance changes under different distribution arrays, meeting the multi-boat distributed resistance test requirements.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a multi-boat distributed resistance measurement device is provided, which comprises: a towing vehicle; at least one set of longitudinal main racks arranged in parallel, the towing vehicle is connected with the longitudinal main rack through a connecting rod to drive the longitudinal main rack to move, each set of longitudinal main racks comprises two parallel beams, and a main rack sliding rail is arranged on the parallel beams; a plurality of sets of transverse auxiliary racks are transversely arranged on the main rack sliding rails to slide on the main rack sliding rails, each set of transverse auxiliary racks is connected with a guide rod, a sensor and a guide wheel unit below, the guide wheel unit comprises a guide wheel and a steel wire rope, one end of the steel wire rope is connected to the sensor, and the other end is connected with the hull after being guided by the guide wheel, and the guide rod is used to limit the transverse movement of the hull; a first locking member is used to lock the position of each set of transverse auxiliary racks.

[0006] Preferably, each set of transverse auxiliary racks comprises a plurality of mutually independent cross beams, and the guide rod, the sensor and the guide wheel unit are respectively fixed on different cross beams.

[0007] Preferably, the device further comprises a second locking member for fixing the cross beams.

[0008] Preferably, the number of guide wheels is two, and the two guide wheels are vertically arranged.

[0009] Preferably, one end of the steel wire rope is connected horizontally with the sensor, and the other end is connected horizontally with the ship body after being guided by the two guide wheels.

[0010] Preferably, longitudinal clamping channels are arranged on the ship body for movably clamping the guide rods, so as to limit the transverse movement of the ship body by the guide rods.

[0011] Preferably, the number of the guide rods under each set of transverse sub-stands is two, which are arranged at the bow and the stern respectively.

[0012] Preferably, the guide rods, the sensor and the guide wheel unit are detachably connected with the transverse sub-stands.

[0013] Preferably, when the longitudinal main stands include multiple sets, the multiple sets are connected by telescopic rods, multi-hole limiting rods or sliding rods, so as to realize the adjustable spacing between the multiple sets of longitudinal main stands.

[0014] Overall, compared with the prior art, the multi-ship distributed resistance measuring device provided by the present application mainly has the following beneficial effects:

[0015] 1. The present application includes at least one set of longitudinal main stands and multiple sets of transverse sub-stands, and each transverse sub-stand can be arranged with a ship body, so that the arrangement of any formation can be realized, the demand of any distributed formation can be met, the position between the transverse sub-stands can be adjusted, and the resistance test of any spacing can be realized, so that the present application can simulate the mutual interference of ship resistance under any formation and any spacing.

[0016] 2. Each set of transverse sub-stands of the present application includes multiple independent crossbeams, the position of the crossbeams can be adjusted to realize the connection of any size ship body, so that the limitation of the experimental stand on the size of the ship body can be avoided, and the universality of the experimental stand can be greatly expanded.

[0017] 3. One end of the steel wire rope is connected horizontally with the sensor, and the other end is connected horizontally with the ship body after being guided by the two guide wheels, so that the equal transmission of force can be realized, the reading on the sensor is the ship body resistance, conversion is avoided, and it is very simple and intuitive.

[0018] 4. Longitudinal clamping channels are arranged on the ship body for movably clamping the guide rods, so that the guide rods only limit the transverse movement of the ship body, the left and right swinging of the ship body is avoided, and the forward and backward movement of the ship body is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the front view of the multi-ship distributed resistance measuring device of the embodiment of the present application;

[0020] Figure 2 This is a top view of the multi-boat distributed resistance measurement device according to an embodiment of this application;

[0021] Figure 3 This is a diagram showing the hull connection of the multi-boat distributed resistance measurement device according to an embodiment of this application.

[0022] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0023] 1-Trailer; 2-Connecting rod; 3-Longitudinal main frame; 4-Hull; 5-Main frame slide rail; 6-Crossbeam; 7-Connecting hole; 8-Guide rod; 9-Base; 10-Sensor; 11-Wire rope; 12-Guide wheel; 13-Hull fixing seat. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0025] This application addresses the need for studying ship resistance interference under different formation configurations by providing a multi-ship distributed resistance measurement device. After adjusting the model's state, it is placed in water. The lateral movement of the model is constrained by guide rods, and the model is towed by a steel cable, moving at a constant speed in a linear motion within a water tank along with a trailer. The steel cable is connected to a sensor via a guide wheel; the force measured by the sensor is the model's resistance. This application distributes a number of ships under a longitudinal main frame and transverse auxiliary frames according to experimental conditions. The spacing between the multiple transverse auxiliary frames is adjustable. Figure 2 As shown, it can realize simulation under arbitrary spacing and formation, and can study the mutual interference of ship resistance under different formation forms. The specific structure is as follows.

[0026] The multi-boat distributed resistance measurement device provided by this invention, such as Figure 1 As shown, the device includes a trailer 1, a connecting rod 2, a longitudinal main frame 3, a transverse auxiliary frame, a guide rod 8, a sensor 10, and a guide wheel unit, etc.

[0027] Trailer 1 is used to support the movement of the connecting rod 2, longitudinal main frame 3, transverse secondary frame, guide rod 8, sensor 10 and guide wheel unit below, and the trailer 1 can be lifted by trusses or the like.

[0028] The longitudinal main frame 3 can be in one set or multiple sets. When there are multiple sets, they are arranged in parallel to each other and can be connected by telescopic rods, multi-hole limit rods, or sliding rods, thereby achieving adjustable spacing between the multiple sets of longitudinal main frames. Each set of longitudinal main frames 3 includes two parallel beams, and longitudinal main frame slide rails 5 are provided on the two parallel beams.

[0029] Trailer 1 is connected to longitudinal main frame 3 via connecting rod 2, and connecting rod 2 is fixedly connected to longitudinal main frame 3.

[0030] Multiple sets of transverse auxiliary platforms are horizontally mounted on the main platform slide rail 5 and cooperate with the main platform slide rail 5 through sliding blocks. Each set of transverse auxiliary platforms is connected to a guide rod 8, a sensor 10, and a guide wheel unit.

[0031] The guide wheel unit includes a guide wheel 12 and a steel wire rope 11. One end of the steel wire rope is connected to the sensor 10, and the other end is connected to the hull 4 after being guided by the guide wheel. The guide rod 8 is used to limit the lateral movement of the hull.

[0032] In a further preferred embodiment, each set of transverse sub-frames includes multiple independent crossbeams 6. The guide rods 8, sensors 10, and guide wheel units are respectively fixed on different crossbeams 6, thereby achieving fixation for different hull sizes. Specifically, the crossbeams 6 may be provided with connecting holes 7, through which the guide rods 8, sensors 10, and guide wheel units are connected.

[0033] The device also includes a second locking element, which is used to fix the position of the crossbeam after the hull is installed.

[0034] The first locking element is used to lock the position of each set of transverse subframes.

[0035] In further preferred solutions, such as Figure 3 As shown, there are two guide wheels 12, which are arranged vertically; one end of the steel wire rope 11 is horizontally connected to the sensor 10, and the other end is horizontally connected to the hull fixing seat 13 on the hull after being guided by the two guide wheels.

[0036] The hull is provided with longitudinal clamps for movably clamping the guide rod 8, thereby restricting the lateral movement of the hull through the guide rod 8, while the longitudinal movement of the guide rod 8 is unrestricted, thus not affecting the resistance measurement. In a further preferred embodiment, there are two guide rods 8 under each set of transverse sub-stands, respectively located at the bow and stern.

[0037] The guide rod 8, sensor 10, and guide wheel unit are detachably connected to the transverse sub-frame, allowing for the replacement of different structural components. In this application, sensor 10 is a tension sensor, which can be connected to the crossbeam via base 9.

[0038] The application can realize independent measurement of resistance of multiple boats in different numbers, distribution forms and spacing changes and can analyze interference between multiple boats in different working conditions through adjustment of spacing and number of longitudinal main stands and transverse secondary stands.

[0039] Those skilled in the art will easily understand that the above description is only the preferred embodiment of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-boat distributed drag measurement apparatus, characterized by, The device comprises: a trailer (1); at least one set of longitudinal main trestles (3) arranged in parallel, the trailer (1) being connected with the longitudinal main trestles (3) through connecting rods (2) to drive the longitudinal main trestles (3) to move, each set of longitudinal main trestles (3) comprising two parallel beams on which main trestle slide rails (5) are arranged; a plurality of sets of transverse auxiliary trestles arranged transversely on the main trestle slide rails (5) to slide on the main trestle slide rails (5), each set of transverse auxiliary trestles being connected with a guide rod (8), a sensor (10) and a guide wheel unit, the guide wheel unit comprising a guide wheel (12) and a steel wire rope (11), one end of the steel wire rope (11) being connected to the sensor (10) and the other end being connected to a ship body after being guided by the guide wheel, the guide rod (8) being used to limit the transverse movement of the ship body; a first locking member for locking the position of each set of transverse auxiliary trestles.

2. The apparatus of claim 1, wherein, Each set of transverse auxiliary trestles comprises a plurality of mutually independent cross beams (6), and the guide rod (8), the sensor (10) and the guide wheel unit are respectively fixed on different cross beams (6).

3. The apparatus of claim 2, wherein, The device further comprises a second locking member for fixing the cross beams.

4. The apparatus of claim 1, wherein, The number of guide wheels is two, and the two guide wheels are arranged vertically.

5. The apparatus of claim 1 or 4, wherein, One end of the steel wire rope is connected to the sensor (10) horizontally, and the other end is connected to the ship body horizontally after being guided by the two guide wheels.

6. The apparatus of claim 1, wherein, The ship body is provided with a longitudinal clamping channel for movably clamping the guide rod (8) to limit the transverse movement of the ship body through the guide rod (8).

7. The apparatus of claim 1 or 6, wherein, The number of guide rods (8) under each set of transverse auxiliary trestles is two, and the two guide rods (8) are arranged at the bow and the stern respectively.

8. The apparatus of claim 1, wherein, The guide rod (8), the sensor (10) and the guide wheel unit are detachably connected with the transverse auxiliary trestles.

9. The apparatus of claim 1, wherein, When the longitudinal main trestles (3) comprise a plurality of sets, the plurality of sets are connected through telescopic rods, multi-hole limiting rods or slide rods, so that the spacing between the plurality of sets of longitudinal main trestles (3) can be adjusted.

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