CN104749566A - Operating state simulation platform fixed on hydrophone of float - Google Patents

Abstract

The invention relates to an operating state simulation platform fixed on a hydrophone of a float. The operating state simulation platform comprises a platform support and a power source, wherein a plurality of disks are symmetrically arranged all around the platform support and are driven to rotate by the power source, every two disks in the same direction is a group and the end planes of the two disks of each group are arranged relatively; a connecting bar is arranged between every two disks which are relatively arranged, the connecting bars between the groups of the disks are connected with straight bars, any one or two straight bars is connected with the hydrophone and a structure formed by the straight bars and the connecting bars is driven to move with the disks by the disks. The operating state simulation platform provided by the invention is simple in structure and low in price, and the size and power can be changed along with experimental requirements.

Description

The working state simulation platform of the hydrophone fixed on the floating body

technical field

The invention relates to a simulation platform.

Background technique

Vector hydrophone, as a sensor capable of measuring underwater sound field vector information with time synchronization and space co-point, has a wide range of application prospects in marine engineering and marine development, such as the establishment of seabed or sea surface observation network, vector hydrophone in Before it is put into engineering application, it needs to verify its working performance in a complex field environment. At present, the main test method is sea trial, but it requires a lot of preliminary preparation and capital investment.

Hydrophones used in sonar buoys are easily affected by interface waves, and due to too many human factors in sea trials, such as the influence of ships and seasonal climate, it requires a long time and a large amount of observation data, and the shaking table is too large. Large, expensive, heavy, fixed installation, inflexible in use and installation.

Contents of the invention

The technical problem to be solved by the present invention is to provide a simulation platform which has a wide application range and is not affected by various external factors. The technical scheme for realizing the above-mentioned purpose is as follows:

The working state simulation platform of the hydrophone fixed on the floating body is characterized in that: it includes a platform bracket and a power source, and several rotating disks are symmetrically arranged around the platform bracket, and the rotating disks are driven and rotated by the power source. Two rotating disks form a group, and the end faces of the two rotating disks in each group are arranged oppositely, and connecting rods are arranged between the oppositely arranged rotating disks, and the connecting rods between each group of rotating disks are connected by straight rods, any one of which Or two straight rods are connected with hydrophones, and the structure formed by the straight rods and connecting rods is driven by the rotating disc to move along with the rotating disc.

Preferably, the rotating disk is a circular disk.

Preferably, there are two groups of disks, each group has two disks, and the connecting rods between the disks and the straight rods form a quadrilateral structure, and the hydrophone is connected between the two straight rods.

Preferably, there are two groups of disks, each group has two disks, and the connecting rods between the disks and the straight rods form a quadrilateral structure, and the hydrophone is suspended on any one of the straight rods.

Preferably, the connection position of the connecting rod deviates from the center of the disc.

Preferably, the platform support includes a plate body, a support frame is provided on the plate body, a connecting shaft is provided at the free end of the support frame, the center of the disc is mounted on the connecting shaft, and the disc rotates with the connecting shaft as the rotation axis.

Preferably, it also includes an external detection device, and the detection device is connected with the hydrophone signal.

The method of using the working state simulation platform of the hydrophone fixed on the floating body is characterized in that: the simulation platform is placed on the liquid surface or below the liquid surface, the motor is started, and the motor drives several rotating disks to rotate together, and the rotating disk rotates at the same time Drive the connecting rod and the straight rod to move together, thereby driving the hydrophone connected to the straight rod to move.

The invention is low in price, small in volume, light in weight, adjustable in size, can be installed under the liquid surface, and the suspension mode of the hydrophone can also be freely selected.

Description of drawings

Fig. 1 is a schematic diagram of the present invention

Figure 2 is a schematic diagram of the movement of the disc and the connecting rod

Description of the serial numbers of the drawings: platform support 1, power source 2, disc 3, connecting rod 4, straight rod 5, plate body 1-1, support frame 1-2, connecting shaft 1-3, hydrophone 6

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings.

In Fig. 1, the working state simulation platform of the hydrophone fixed on the floating body includes a platform support 1 and a power source 2, and the power source can be selected as a stepper motor. Several discs are arranged symmetrically around the platform support, and the platform support The main function is to support the disc and the motor. Of course, the motor can be placed outside, as long as it can drive the support disc to rotate. When the motor is placed outside, there is no need to consider the waterproof seal of the motor, and the device float above or below the surface of the liquid. Of course, the present invention is not limited to the use of a disc, as long as it is capable of rotating and can be connected to any carrier that connects to the rod.

In order to illustrate the concept of the present invention simply and clearly, the present invention preferably has four discs 3, the platform support 1 includes a plate body 1-1, a support frame 1-2 is respectively arranged around the plate body, and the free end of the support frame is provided with a connecting shaft 1-3, the center of the disc is installed on the connecting shaft, the plate body can be a rectangular planar structure, the disc 3 is connected to the motor through a power line (not shown in the figure), and the motor drives the disc to take the connecting shaft as the rotation axis The center rotates, wherein every two disks in the same direction form a group, and the end faces of the two disks in each group are arranged oppositely, and a connecting rod 4 is also arranged between the oppositely arranged disks 3, and the connecting rod 4 is installed near the The position of the edge of the disk, the connecting rod 4 between the two groups of disks is connected by a straight rod 5, the function of the straight rod 5 is to connect the movements of the two groups of disks together, the straight rod 5 can be one or Two or several, the straight rod and the connecting rod form a polygonal structure, preferably the straight rod and the connecting rod form a parallelogram structure, and any one or two straight rods are connected to the hydrophone 6, that is, the hydrophone can The parallel connecting rods can also be hung vertically on any straight rod. When the disc rotates, the disc drives the structure formed by the straight rod and the connecting rod to move together, thus driving the hydrophone to simulate seawater waves for ups and downs.

When the simulation platform is working, the stepping motor is used as the power source to provide power, and the movable disk rotates around the axis with the central axis as the rotation axis, and the connecting rod and straight rod fixed on the movable disk will follow the movable disk sports.

In Fig. 2, if the distance from the center of the movable disc to the fixed axis of the connecting rod is R, the angle between the fixed wheel axis of the straight rod and the xy horizontal plane is θ, and the horizontal movement displacement of the hydrophone is

x = Rgcosθ

The displacement in the vertical direction is

y = Rgsinθ

Then the horizontal and vertical movement modes of the hydrophone are sine or cosine, which can be used in simulation experiments to simulate the movement of the hydrophone suspended on the buoy that fluctuates with sea waves, and other detection devices can be connected to obtain the corresponding response.

The invention has simple structure and low price, and the size and power can be changed according to the experimental requirements.

The above are only preferred embodiments of the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the embodiments of the present invention shall include Within the protection scope of the embodiments of the present invention.

Claims (8)

1. The working state simulation platform of the hydrophone fixed on the floating body is characterized in that: it includes a platform support and a power source, and several rotating discs are symmetrically arranged around the platform support, and the rotating discs are driven to rotate by the power source, wherein the same direction Every two rotating disks in each group are set as a group, and the end faces of the two rotating disks in each group are arranged oppositely, connecting rods are arranged between the oppositely arranged rotating disks, and the connecting rods between each group of rotating disks are connected by straight rods. One or two straight rods are connected with hydrophones, and the structure formed by the straight rods and connecting rods moves with the rotating disc driven by the rotating disc. 2 . The working state simulation platform of a hydrophone fixed to a floating body according to claim 1 , wherein the rotating disk is a circular disk. 3 . 3. The working state simulation platform of the hydrophone fixed on the floating body according to claim 2, characterized in that: the discs are two groups, each group of discs is two, and the connecting rod between the discs A polygonal structure is formed with the straight rods, and the hydrophone is connected between the two straight rods. 4. The working state simulation platform of the hydrophone fixed on the floating body according to claim 2, characterized in that: the discs are two groups, each group of discs is two, and the connecting rod between the discs A polygonal structure is formed with the straight rods, and the hydrophone is suspended on any one of the straight rods. 5. The working state simulation platform of a hydrophone fixed to a floating body according to claim 1, wherein the connection position of the connecting rod deviates from the center of the disc. 6. The working state simulation platform of the hydrophone fixed on the floating body according to claim 2, characterized in that: the platform support comprises a plate body, a support frame is arranged on the plate body, and a connecting shaft is arranged at the free end of the support frame, The center of the disc is installed on the connecting shaft, and the disc rotates with the connecting shaft as the rotation axis. 7. The working state simulation platform of the hydrophone fixed on the floating body according to claim 1, further comprising an external detection device connected with the hydrophone signal. 8. The use method of the working state simulation platform of the hydrophone fixed on the floating body is characterized in that: the simulation platform is placed on the liquid surface or below the liquid surface, the motor is started, and the motor drives several rotating disks to rotate together, and the rotating disk rotates At the same time, it drives the connecting rod and the straight rod to move together, thereby driving the hydrophone connected to the straight rod to move.