RU153459U1 - SHOCK TEST STAND - Google Patents

Abstract

The stand for impact tests, containing the base, guides, a device for fixing the test object (OI), mounted motionless on the end of the guides, a platform-striker with an obstacle simulator placed in the direction of its movement, the outer surface of which is designed to interact with the OI, facing OI and is located at a given slope to the guides, a device for driving on the guides of the striking platform, characterized in that the obstacle simulator is made containing installed one after another e elements made of dissimilar materials, the surface of each of which is intended to interact with OI, is located at a predetermined angle to the guides.

Description

The utility model relates to testing equipment and can be used to test objects for high-speed impact.

One of the important tasks in the testing technique is to verify the functioning of objects during high-speed collision with various obstacles.

A well-known stand for testing mechanical systems for impact, containing a base, a flyover, guides fixed on the flyover with inclined and horizontal sections, placed in the guides of the hammer in the form of a cart, a striking platform with wheels and a device for fixed mounting the test object mounted motionless at the end guides (see AS USSR No. 1538079, IPC 5 G01M 7/00, dated 09/14/1987, publ. 01/23/1990 Bull. No. 3).

A disadvantage of the known stand is the inability to implement high-speed collision. So, for example, to obtain a speed of ~ 100 m / s, a trestle height of ~ 500 m would be required, which is practically unrealizable.

A known stand for impact testing, selected as a prototype, allowing for high-speed impact. It contains a base, guides, a device for fixing the test object (OI), mounted motionless at the end of the guides, a striker platform with an obstacle simulator placed along its front, the outer surface of which is designed to interact with the OI, is located at a predetermined angle to the guides and facing an open surface to the test object, a device for propelling along the guides of the striking platform. (see RF patent No. 2244910, IPC 7 G01M 7/08, dated 04.08.2003, publ. 01.20.2005 Bull. No. 2). The platform-striker is mounted on pylons equipped with shoes, at a given slope to the guides. The platform-head is filled with polymerized polyurethane foam with sand of a given density - a simulator of soil barriers.

A disadvantage of the known stands is the impossibility of realizing a high-speed collision of an object with an obstacle made of several different materials. A well-known stand allows testing only on the interaction of OI with a homogeneous barrier (in the prototype - with soil). In reality, with high-speed collision, the OI can interact with the ground, then with concrete (armor, water) or other combinations of materials.

The objective of the proposed utility model is to create a test bench that allows testing for high-speed interaction of OI with a barrier simulator made of at least two materials.

EFFECT: provision of tests for the high-speed impact of an OI with an obstacle with parameters realized in natural conditions.

The problem is solved in that in the stand for impact testing, containing the base, the guides, the device for fixing the OI, mounted motionless on the end of the guides, the platform-striker with the obstacle simulator placed along the front, the outer surface of which is designed to interact with the OI , facing the OI and is located at a given slope to the guides, a device for setting in motion along the guides of the striking platform.

In contrast to the prototype, the barrier simulator is made up of elements of heterogeneous materials installed one after another, the surface of each of which is designed to interact with the OI, is located at a given angle to the guides.

Performing in a stand for shock testing, containing a base, guides, a device for fixing the test object (OI), mounted motionless at the end of the guides, a striking platform with an obstacle simulator placed in front of it, the outer surface of which is designed to interact with OI, facing the OI and is located at a given slope to the guides, a device for driving the striking platform along the guides, a barrier simulator containing elements installed one after another from different native materials, the surface of each of which are designed to interact with the undulator is disposed at a predetermined inclination to the guide allows for testing on a high speed OI collision with the barrier with parameters implemented in field conditions.

The utility model is illustrated by drawings:

- in FIG. 1 shows a side view of the stand;

- in FIG. 2 shows a side view of the stand at the time of interaction of the OI with the obstacle;

- in FIG. 3 is a side view of a barrier simulator;

- in FIG. 4 and FIG. 5 shows frontal simulator views. The stand for shock tests contains a base (in the figures not

shown), rail (in this example) guides 1 attached to it, fixedly mounted on the end of rail guides 1, a device 2 made in the form of a truss, for fastening OI 3 in a certain position (at an angle a) to rail guides 1.

On the rail rails 1 on the shoes 4, with the ability to move installed platform-striker 5 (hereinafter referred to as platform). On the platform 5, in front of the direction of its movement, a barrier simulator 6 is placed, the outer surface of which, designed to interact with OI 3, is facing the OI and is located with a given angle β of inclination to the guides 1. On the rail guides 1 on the shoes 7 there is a device for bringing the movement along the rail guides of the platform 5, made in the form of one or more rocket engines 8. The barrier simulator 6 is made containing elements 9 and 10 installed one after another of dissimilar materials (in this example, element 9 is made of soil, and element 10 is made of concrete), the surface of each of which is designed to interact with OI 3, is located at a given slope to the guides 1 (angle β and γ, respectively). Element 9 can be closed on the side of OI 3 by a fabric tent 11 or the soil can be simulated with a “sandblast” of a given density, bonded to the surface of the platform 5. Element 10 is fixed to the frame of the platform 5. Elements 9 and 10 of the obstacle simulator can be spaced apart in the direction of travel. On-board equipment ОИ 3 can be connected by a wire line 12 to the recording equipment (not shown in the figure).

The work of the stand is as follows. Before testing for given (real) meeting conditions, the initial position of the OI 3 relative to the rail guides 1, the dimensions of the elements 9 and 10 of the barrier simulator 6, their relative position on the platform 5 and the position relative to the rail guides 1 are set. Depending on the accelerated mass and speed of the meeting OI 3 with the first obstruction 6 select the type of rocket engine 8, their number, the initial distance from the simulator of obstruction 6 to OI 3.

The rocket engine 8 is launched, the platform 5 is accelerated with the obstacle simulator 6 along the rail guides 1 to a predetermined speed. Then there is a sequential interaction of OI 3 with elements 9 and 10 of the barrier simulator 6 (see figure 2). In this case, information about the functioning of the OI 3 from the OI via a wireline 12 to the recording equipment can be transmitted.

Thus, the proposed stand for impact testing, in comparison with the prototype, provides testing of OI for high-speed collision with a barrier simulator, consisting of dissimilar materials sold in natural conditions.

Claims (1)

The stand for shock tests, containing a base, guides, a device for fixing the test object (OI), mounted motionless on the end of the guides, a platform-striker with an obstacle simulator placed along its front, the outer surface of which is designed to interact with the OI, facing OI and is located at a predetermined slope to the guides, a device for driving the striking platform along the guides, characterized in that the obstacle simulator is made containing elements made of dissimilar materials, the surface of each of which is intended to interact with OI, is located at a predetermined slope to the guides.

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