Poster set-up for simulation of water flow towed body

 

(57) Abstract:

Usage: relates to the field of water transport, in particular to the stand installations to simulate the flow of water towed body. Essence: poster installation contains hydrolock from bottom to accommodate the model of the towed body, consisting, for example, of separate elements, which are the models of sections of the towed body. The elements mounted on the two longitudinal guides, the ends of which are set using the slider can move along the vertical racks that are installed inside hydrolock. The fastening elements on the longitudinal guides performed using the brackets and screws. Racks are installed on the base, placed on the bottom of hydrolock. On top of the longitudinal wall of the hydraulic channels receive laid two cross bars, which are horizontal rod, oriented along the axis of hydrolock on the model of the towed body. Horizontal rod serves as an attachment point to which flexible connections attached model towed body fore and aft ends. In these flexible communications includes sensors that are part of the measuring apparatus. The base is provided with a panel, the panel is made of separate sections, pivotally connected to each other. The hinge axis perpendicular to the longitudinal axis of hydrolock and provided with clamps, and the base is equipped with lifting rings and ropes. 4 Il.

The invention relates to water transport, in particular to the stand installations to simulate the flow of water towed body.

Famous poster installation comprising hydrolock from bottom to accommodate the model of the towed body, a flexible connection with the attachment placed on the wall of hydrolock, measuring equipment, sensors which are installed on the flexible connectors.

The lack of bench installation made in accordance with the prototype, is the inability to simulate the flow of water towed body at the variable soil profile, such a need arises in the study of pressure fields generated by a towed body with uneven ground with its slopes, hills, hollows, etc., this disadvantage reduces the functionality of the famous poster installation.

The aim of the invention is to enhance the functionality poster setup by providing a simulation of water flow towed body profane wrap water towed body, containing hydrolock from bottom to accommodate the model of the towed body, a flexible connection with the attachment placed on the wall of hydrolock, measuring equipment, sensors which are installed on the flexible connections fitted with lateral guides for mounting the model, the ends of which are mounted for movement along the vertical racks that are installed inside hydrolock, and the flexible connection provided with connecting elements for attaching one end to a fore and aft ends of the model, and the other to mount, made in the form of a horizontal rod, oriented along the axis of hydrolock, equipped with installed on its bottom panel mounted on it with pressure sensors, and the panel is made up of sections connected to each other via a hinge, the axis of which is perpendicular to the longitudinal axis of hydrolock and provided with retainers.

In Fig. 1 shows the experimental setup of Fig. 2 - the same, front view; Fig. 3 - section a-a in Fig. 1; Fig. 4 - section b-B in Fig. 2.

Poster set-up for simulation of water flow towed body contains hydrolock 1 from bottom to accommodate the model of the towed body, compiled by the us in two longitudinal guides 7 and 8, the ends of which are set using the sliders 9 and 10 can move along the vertical columns 11-14 (hour 14 of the drawings not shown) installed inside hydrolock 1. Fastening elements 2-6 on the longitudinal guides 7 and 8 is made by means of brackets 15 and screws 16. Hours 11-14 established on the basis of 17 placed on the bottom of hydrolock 1. On top longitudinal wall hydrolock laid two cross bars 18 and 19, which are horizontal rod 20, oriented along the axis of hydrolock 1 on the model of the towed body. Horizontal rod 20 serves as a mount to which flexible connections 21 and 22 are attached model towed body fore and aft ends. In these flexible links included strain gauges 23 and 24 included in the measuring apparatus. The base 17 is equipped with a panel that hosts the sensors 25 pressure, such as a Pitot tube, the signals of which the tubes 26 are displayed on the indicators battery gauge 27, containing a series of vertically arranged tubes. The panel is made of separate sections 28-32, connected with hinges. The hinge axis perpendicular to the longitudinal axis of hydrolock 1 and provided with clamps, for example by nuts 33. Cos the key is as follows.

On the basis of 17 establish racks 11-14, which put the sliders 9 and 10, enter the longitudinal guides 7 and 8 mounted items 2-6, one of its ends, a flexible connection 21 and 22 are connected with sensors 23 and 24, the other - to the horizontal rod 20. Length of flexible connections 21 and 22 determines the distance H from the axis of items 2-6 to the base 17, as the racks 11-14 sliders 9 and 10 are shifted down freely under the influence of gravity. This distance H is chosen from the condition of similarity so that the scale of the simulation match the distance towed body from the bottom of the reservoir. The distance between elements 2-6 install using staples 15 and screws 16. The panel is deformed in a desired way, why weaken tabs (nuts) 33 and install sections 28-32 at the required angles to each other, then tighten the nut 33. The base 17 mounted with its model of the towed body, the panel and measuring elements - sensors 25 and pressure tube 26 connecting the sensors with battery gauge 27, by means of cables 36 and 37 attached to the rings 34 and 35 are omitted in hydrolock 1. In hydrocode creates a flow of water, which, flowing a model of the towed body, creates panelu 23 and 24. These data allow taking into account the initial readings to determine the load on the model of the towed body and the indication of the battery gauge give the structure of this load on the elements. To determine the gravity of the towed body and its sections separately to the bottom of the reservoir, which recalculate the model results on the field. By varying the distance between the elements 2-6, form panel (angles of inclination of its sections 28-32), and the distance from the axis of items 2-6 to the base 17, it is possible to explore all possible options.

It should be noted that before the experiment with each profile panel, it is necessary to measure the intensity of the field without the model of the towed body, and then to determine the change in the field due to the flow model of the towed body.

POSTER set-up FOR SIMULATION of WATER FLOW TOWED BODY containing hydrolock from bottom to accommodate the model of the towed body, a flexible connection with the corner mounting, posted on the wall of hydrolock, measuring equipment, sensors which are installed on the flexible elements, wherein the plant is equipped with longitudinal guides for mounting the model, the ends of which are mounted with the possibility of connecting elements for attaching one end to a fore and aft ends of the model, and the other to said mount, made in the form of a horizontal rod, oriented along the axis of hydrolock equipped with installed on its bottom panel mounted on it with pressure sensors, and the panel is made up of sections connected to each other via a hinge, the axis of which is perpendicular to the longitudinal axis of hydrolock and provided with clamps.

 

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