A floating body model measuring device and a floating body mooring restoring force measuring device

Abstract

The application discloses a floating body model measuring device and a floating body mooring restoring force measuring device, which comprises a floating body connecting device, a rigid connecting rod, a driving assembly and a tension and pressure sensor. The floating body connecting device is used for fixed connection with the floating body. The rigid connecting rod is fixedly connected with the floating body connecting device, and the floating body connecting device is symmetrically arranged about the rigid connecting rod. The driving assembly is used for connection with the rigid connecting rod and drives the rigid connecting rod to move along a preset direction. The floating body connecting device and the rigid connecting rod are connected through the tension and pressure sensor, and the tension and pressure sensor is used for measuring the tension of the rigid connecting rod. The floating body connecting device is symmetrically arranged about the rigid connecting rod, and the rigid connecting rod is driven by the driving assembly to move along the preset direction, so that the movement direction of the floating body is limited, the rotation of the floating body is reduced, and the accuracy of the mooring restoring force stiffness measurement of the floating body model is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of floating body model tank test measurement, in particular to a floating body model measurement device and a floating body mooring restoring force measurement device. BACKGROUND

[0002] In the ocean engineering tank test, the accurate measurement of the restoring force stiffness of the model mooring system has puzzled the experimenters.

[0003] At present, when measuring the restoring force stiffness of the mooring system, the pulling rope method is usually used, that is, a flexible rope is used to pull the floating body to obtain the restoring force-displacement curve of the mooring system.

[0004] However, the above method is difficult to ensure that the floating body only moves in one degree of freedom, that is, the rope cannot control the rotation of the floating body.

[0005] Therefore, how to ensure that the floating body only moves in a specified degree of freedom to improve the accuracy of the restoring force stiffness measurement of the floating body model is a technical problem to be solved by the person skilled in the art. SUMMARY

[0006] Therefore, the present application provides a floating body mooring restoring force measurement device to ensure that the floating body only moves in a specified degree of freedom to improve the accuracy of the restoring force stiffness measurement of the floating body model. In addition, the present application also provides a floating body model measurement device with the above floating body mooring restoring force measurement device.

[0007] To achieve the above object, the present application provides the following technical scheme:

[0008] A floating body mooring restoring force measurement device, comprising:

[0009] A floating body connecting device for fixedly connecting with a floating body;

[0010] A rigid connecting rod fixedly connected with the floating body connecting device, and the floating body connecting device is symmetrically arranged about the rigid connecting rod;

[0011] A driving assembly for connecting with the rigid connecting rod and driving the rigid connecting rod to move along a predetermined direction;

[0012] A tension and compression force sensor for connecting the floating body connecting device and the rigid connecting rod, and the tension and compression force sensor is used to measure the tension of the rigid connecting rod.

[0013] Preferably, the floating body mooring restoring force measurement device comprises:

[0014] a base, the base supports the rigid connecting rod through a support plate;

[0015] a guide rail, the guide rail is arranged on the base along the preset direction, and the rigid connecting rod is threadedly connected with the guide rail;

[0016] a driving member, the driving member is used for driving the guide rail to rotate.

[0017] Preferably, in the floating body berthing restoring force measuring device, the base is provided with a size scale for measuring the position of the rigid connecting rod on the base.

[0018] Preferably, in the floating body berthing restoring force measuring device, the driving member is a driving hand wheel, and the driving hand wheel is fixedly connected with the guide rail.

[0019] Preferably, in the floating body berthing restoring force measuring device, the support plate is provided with an arc-shaped groove matched with the outer wall of the rigid connecting rod, and one end of the rigid connecting member is threadedly connected with the guide rail through a sliding block.

[0020] Preferably, in the floating body berthing restoring force measuring device, the driving assembly comprises:

[0021] a mounting seat,

[0022] a telescopic cylinder mounted on the mounting seat, a telescopic rod of the telescopic cylinder moves along the preset direction, and the telescopic rod of the telescopic cylinder is fixedly connected with the rigid connecting rod.

[0023] Preferably, in the floating body berthing restoring force measuring device, the floating body connecting device is an annular clamp capable of being sleeved on the floating body.

[0024] Preferably, in the floating body berthing restoring force measuring device, the tension and pressure sensor is two and is symmetrically arranged about the axis of the rigid connecting rod;

[0025] or,

[0026] the tension sensor is one and is located on the axis of the rigid connecting rod.

[0027] A floating body model measuring device, wherein the floating body berthing restoring force measuring device is any one of the above.

[0028] Preferably, in the floating body model measuring device, further comprising a water pool for placing the floating body and a fixing seat for mounting the driving assembly, and the fixing seat is connected with the driving assembly through a horizontally arranged bracket.

[0029] The application provides a floating body mooring restoring force measuring device, when in use, a driving assembly drives the floating body to move through a rigid connecting rod, after the floating body moves stably, the restoring force provided by the mooring system can be obtained through a tension and pressure sensor, and the position of the rigid connecting rod moving at the moment is measured, that is, the position of the floating body moving, so that the displacement of the floating body in the process and the restoring force provided by the mooring system under the displacement are obtained.

[0030] In the scheme, the floating body connecting device is arranged symmetrically about the rigid connecting rod, and the driving assembly drives the rigid connecting rod to move along a preset direction, so that the movement direction of the floating body is limited, the rotation of the floating body is reduced, and the accuracy of the mooring restoring force stiffness measurement of the floating body model is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0032] Figure 1 It is a structural schematic view of the floating body mooring restoring force measuring device disclosed in the embodiments of the present application.

[0033] Figure 2 It is a front view of the floating body mooring restoring force measuring device disclosed in the embodiments of the present application.

[0034] Figure 3 It is a top view of the floating body mooring restoring force measuring device disclosed in the embodiments of the present application.

[0035] Figure 4 It is a structural schematic view of the floating body model measuring device disclosed in the embodiments of the present application.

[0036] Among them, 1 is a floating body connecting device, 2 is a tension and pressure sensor, 3 is a rigid connecting rod, 4 is a driving assembly, 5 is a floating body, and 6 is a fixed seat.

[0037] 41 is a driving hand wheel, 42 is a guide rail, 43 is a base, and 44 is a support plate. DETAILED DESCRIPTION

[0038] The application discloses a floating body mooring restoring force measuring device, which ensures that the floating body only moves in a specified degree of freedom, so as to improve the accuracy of the mooring restoring force stiffness measurement of the floating body model. In addition, the application also discloses a floating body model measuring device with the floating body mooring restoring force measuring device.

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0041] like Figures 1-3 As shown, the present invention discloses a floating mooring restoring force measuring device, which includes a floating body connecting device 1, a rigid connecting rod 3, a driving assembly 4 and a tension and pressure sensor 2.

[0042] Combine Figures 1-3 The connection relationship of each component is described as follows: the floating body connection device 1 is used to connect with the floating body 5 ( Figure 4 (shown in the figure); the rigid connecting rod 3 is fixedly connected to the floating body connecting device 1, and the floating body connecting device 1 is symmetrically arranged about the rigid connecting rod 3. Specifically, the rigid connecting rod 3 and the floating body connecting device 1 are connected via a tension and pressure sensor 2. Preferably, the tension and pressure sensor 2 is connected to the rigid connecting rod 3 and the floating body connecting device 1 via bolts to achieve a detachable connection; and the driving assembly 4 is connected to the rigid connecting rod 3, and drives the rigid connecting rod 3 to move in a preset direction. The above arrangement can realize the movement of the rigid connecting rod 3 in a preset direction and synchronously drive the floating body 5 to move through the driving assembly 4. The above-mentioned tension and pressure sensor 2 is used to measure the tension exerted on the rigid connecting rod 3, that is, the restoring force provided by the mooring system.

[0043] Providing multiple floating body connection devices 1 can increase the contact area between the floating body connection devices 1 and the floating body 5. Arranging all floating body connection devices 1 symmetrically about the rigid connecting rod 3 can reduce the rotation of the floating body 5 and ensure that the movement direction of the floating body 5 is fixed. Preferably, the above-mentioned floating body connection devices 1 can be provided in two.

[0044] During operation, the drive assembly 4 drives the floating body 5 via the rigid connecting rod 3. Once the floating body 5 stabilizes, the restoring force provided by the mooring system is measured using the tension and pressure sensor 2. The position of the rigid connecting rod 3 at this point is measured, which represents the position of the floating body 5. This provides the displacement of the floating body 5 during this process and the restoring force provided by the mooring system under this displacement. Multiple measurements can be performed to determine the restoring force of the mooring system under different displacements, thereby generating a restoring force stiffness curve for the mooring system.

[0045] In summary, in this solution, the floating body connection device 1 is set to be symmetrically arranged about the rigid connecting rod 3, and the rigid connecting rod 3 is driven to move in a preset direction by the driving component 4, thereby limiting the movement direction of the floating body 5, reducing the rotation of the floating body 5, and ensuring the accuracy of the measurement of the mooring restoring force stiffness of the floating body model.

[0046] In a specific embodiment, combined with Figures 1-3 The specific structure of the drive assembly 4 disclosed in this embodiment includes: a base 43, a guide rail 42, and a drive member. The base 43 supports the rigid connecting rod 3 via a support plate 44, and the guide rail 42 is arranged on the base 43 along the above-mentioned preset direction. Specifically, the rigid connecting rod 3 is threadedly connected to the guide rail 42, and the drive member drives the guide rail 42 to rotate. As shown in the figure, the base 43 in this embodiment is a flat plate, and the guide rail 42 is a threaded cylindrical member. Correspondingly, the rigid connecting member 3 is also a cylindrical member.

[0047] During operation, since the float connection device 1 is fixedly connected to the float 5, and the rigid connecting rod 3 is fixedly connected to the float connection device 1, the rotation of the float 5 is limited by the rigid connecting rod 3. When the driver drives the guide rail 42 to rotate, the rigid connecting rod 3, which is threadedly connected to the guide rail 42, moves along the axis of the guide rail 42. The guidance of the guide rail 42 ensures that the rigid connecting rod 3 moves in a unique direction, and at the same time, the movement direction of the float 5 is guaranteed, that is, the float 5 moves only in the specified degree of freedom.

[0048] Those skilled in the art will appreciate that the aforementioned drive assembly 4 may further include a mounting base and a telescopic cylinder. Specifically, the telescopic cylinder is mounted on the mounting base, and its telescopic rod moves in a predetermined direction and is fixedly connected to the rigid connecting rod 3. The directional action of the telescopic cylinder limits the degrees of freedom of movement of the rigid connecting rod 3, ensuring that the floating body 5 moves only within the designated degrees of freedom.

[0049] Furthermore, the base 43 has a size scale for measuring the position of the rigid connecting rod 3 on the base 43. Specifically, a size scale is provided on the base 43 along the moving direction of the rigid connecting rod 3 to facilitate reading the position of the rigid connecting rod 3 and calculating the moving distance of the rigid connecting rod 3.

[0050] The numerical value of the size scale gradually increases from the direction farthest to the closest to the guide rail 42.

[0051] Preferably, the driving member is a driving hand wheel 41, which is fixedly connected with the guide rail 42. Since the core of the present scheme is mainly applied to the floating body mooring restoring force measuring device in the laboratory, the driving hand wheel 41 is simple in structure, low in cost, and convenient to control.

[0052] In practice, the driving member can also be set as a motor, but the motor driving speed is fast, and it is not convenient to observe the movement of the floating body 5.

[0053] In order to support and guide the rigid connecting rod 3, the support plate 44 of the base 43 is provided with an arc-shaped groove matched with the outer wall of the rigid connecting rod 3, that is, the rigid connecting rod 3 is arranged in the arc-shaped groove during installation, so as to realize the support of the support plate 44 to the rigid connecting rod 3. When the rigid connecting rod 3 moves, the arc-shaped groove can limit the two sides of the rigid connecting rod 3 to prevent the position deviation of the rigid connecting rod 3.

[0054] Specifically, the support plate 44 and the base 43 are an integral structure, and the support plate 44 is vertically fixed at one end of the base 43 close to the floating body connecting device 1. The other end of the base 43 is provided with a mounting plate arranged opposite and parallel to the support plate 44, and the driving hand wheel 41 is mounted on the mounting plate. The guide rail 42 is rotatably arranged between the support plate 44 and the mounting plate, and preferably, the guide rail 42 is rotatably connected with the support plate 44 and the mounting plate through bearings respectively. The guide rail 42 is fixedly connected with the driving hand wheel 41 through the mounting plate.

[0055] The end of the rigid connecting member 3 is threadedly connected with the guide rail 42 through a sliding block. Specifically, a sliding block having a threaded hole matched with the thread of the guide rail 42 is fixed at one end of the rigid connecting member 3 away from the floating body connecting device 1.

[0056] The floating body connecting device 1 in the present scheme is a ring-shaped clamp capable of being sleeved on the floating body 5. In use, the ring-shaped clamp is sleeved on the floating body 5, and the ring-shaped clamp is locked through a locking device. The connection mode of the ring-shaped clamp is reliable and simple to assemble.

[0057] As shown in Figures 1-3 The two tensile and compressive force sensors 2 are symmetrically arranged about the axis of the rigid connecting rod 3. Specifically, the symmetric arrangement of the two tensile and compressive force sensors 2 can ensure that the movement of the floating body 5 is translation along the rigid connecting member 3, and reduce the rotation of the floating body 5.

[0058] During measurement, the driving hand wheel 41 is rotated to move the float 5 via the rigid connecting rod 3. After the float 5 stabilizes, the displacement of the float 5 is read from the scale on the guide rail 42. At this time, the restoring force provided by the mooring system is the combined force of the two tension and pressure sensors 2.

[0059] In practice, a plurality of tension and pressure sensors 2 may be provided, as long as the tension and pressure sensors 2 are symmetrically arranged with respect to the rigid connecting rod 3 .

[0060] In other application embodiments, a single tension and pressure sensor 2 may be provided and located on the axis of the rigid connecting rod 3. It is necessary to ensure that the mounting surface of the tension and pressure sensor 2 perpendicular to the axis of the rigid connecting rod 3 is large to ensure the horizontality of the rigid connecting rod 3 and prevent the rigid connecting rod 3 from rotating.

[0061] In addition, the present application also discloses a floating body model measurement device, including the floating mooring restoring force measurement device disclosed in the above embodiment. Therefore, the floating body model measurement device with the floating mooring restoring force measurement device also has all the above technical effects, which will not be repeated here.

[0062] Combine Figure 4 As shown, the aforementioned floating body model measurement device also includes a pool for placing the floating body 5 and a mounting base 6 for mounting the drive assembly 4. Specifically, the mounting base 6 is connected to the drive assembly 4 via a horizontally arranged bracket. This bracket is a horizontally arranged steel bracket, such as a mounting plate. The aforementioned mounting base 4 can be an I-beam spanning the pool or other fixed device within the pool. Specifically, the mounting base 4 is welded to the I-beam or other fixed device, thereby forming the installation foundation for the floating mooring restoring force measurement device.

[0063] As used herein and in the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular but may include the plural. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list; a method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0064] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0065] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A floating system mooring restoring force measuring device, characterized by, include: A floating body connecting device, the floating body connecting device is used to be fixedly connected to the floating body; a rigid connecting rod, wherein the rigid connecting rod is fixedly connected to the floating body connecting device, and the floating body connecting device is multiple, and all the floating body connecting devices are symmetrically arranged about the rigid connecting rod; a driving assembly, the driving assembly being used to connect with the rigid connecting rod and drive the rigid connecting rod to move along a preset direction; a tension and pressure sensor, the floating body connection device and the rigid connecting rod are connected via the tension and pressure sensor, and the tension and pressure sensor is used to measure the tension applied to the rigid connecting rod; The drive assembly includes: a base, the base supporting the rigid connecting rod via a support plate; A guide rail, the guide rail being arranged on the base along the preset direction, and the rigid connecting rod being threadedly connected to the guide rail; a driving member, the driving member being used to drive the guide rail to rotate; The drive assembly further includes: Mounting seat, a telescopic cylinder for being mounted on the mounting seat, wherein the telescopic rod of the telescopic cylinder moves along the preset direction and is fixedly connected to the rigid connecting rod; There are two tension and pressure sensors, which are symmetrically arranged about the axis of the rigid connecting rod; or there is one tension and pressure sensor, which is located on the axis of the rigid connecting rod.

2. The floating system mooring restoring force measuring device according to claim 1, characterized by The base is provided with a size scale for measuring the position of the rigid connecting rod on the base.

3. The floating system mooring restoring force measuring device according to claim 1, wherein The driving member is a driving hand wheel, and the driving hand wheel is fixedly connected to the guide rail.

4. The floating system mooring restoring force measuring device according to claim 1, wherein The support plate has an arc-shaped groove adapted to the outer wall of the rigid connecting rod, and one end of the rigid connecting piece is threadedly connected to the guide rail through a slider.

5. The floating system mooring restoring force measuring device according to claim 1, wherein The floating body connecting device is an annular clamp that can be sleeved on the floating body.

6. A floating body model measurement apparatus characterized by comprising: The device comprises a floating mooring restoring force measuring device according to any one of claims 1 to 5.

7. The float model measuring apparatus according to claim 6, characterized by It also includes a water pool for placing the float and a fixing seat for installing the driving assembly. The fixing seat is connected to the driving assembly through a horizontally arranged bracket.

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