RU111656U1 - STAND FOR TESTS OF MATERIALS, PROTECTIVE DEVICES AND STRUCTURAL ELEMENTS UNDER THE INFLUENCE OF HIGH-ENERGY FRAGMENTS OF GAS-TURBINE ENGINES - Google Patents

Abstract

 1. A test bench for testing materials, protective devices and structural elements when exposed to high-energy debris from gas turbine engines, including a test object and a rocket carriage with rocket engines mounted on it, characterized in that the test object is placed next to the carriage path, and the chip is mounted on the carriage in a throwing device that provides ejection of the debris into the test object when passing the carriage at a given speed of the zone of the object. ! 2. The stand according to claim 1, characterized in that the propelling device is placed on the carriage by means of a rotary support with the ability to set different angles of ejection of the debris in the vertical and horizontal planes to act on different parts of the test object. ! 3. The stand according to claim 1, characterized in that the throwing device is made in the form of a barrel with a spring, a piston, a rod, a removable tray to accommodate fragments of various shapes and sizes, devices for compressing the spring in the form of a rod connected to the piston, and a clamp spring position; the barrel of the throwing device is equipped with an optical registration system for the initial parameters of the motion of the fragment.

Description

The utility model “Test bench for materials, protective devices and structural elements when exposed to high-energy fragments of gas turbine engines” refers to a test technique for ground track dynamic testing of materials, protective devices and structural elements for emergency impacts from high-energy fragments of a destroyed gas turbine engine.

A known bench for testing materials and protective devices when exposed to high-energy fragments of gas turbine engines, containing a rocket carriage with acceleration engines installed on it and a test object (see. Russian patent for utility model No. 63064 U1 in class G01M 7/08). The test object mounted on the carriage is accelerated by rocket engines along rail guides to a predetermined speed and interacts with a fragment of a gas turbine engine fixed at a given point in the rocket track.

A disadvantage of the known stand is the technological complexity of accelerating to a given speed and subsequent braking of the test objects with a large mass and size, and, as a consequence, the need to use special missile carriages for these purposes.

The purpose of the proposed utility model is to simplify the testing technology and design of bench equipment for dynamic track testing of large-sized objects with a large mass on emergency impacts from high-energy fragments of a destroyed gas turbine engine.

This goal is achieved by the fact that on a rocket carriage, accelerated along the rail guiding rocket engines, a fragment of a gas turbine engine is installed in the propelling device, and the test object is motionlessly placed at a given point near the path of the carriage. The throwing device provides the ejection of the debris into the test object when passing the carriage at a given speed of the zone of the object. The throwing device is mounted on the carriage by means of a rotary support with the ability to set different ejection angles of the debris in the vertical and horizontal planes to act on different parts of the test object. The throwing device is made in the form of a barrel with a spring, a piston, a rod, a removable tray for placing fragments of various shapes and sizes, devices for compressing the spring in the form of a rod connected to the piston, and a clamp for the clamped position of the spring; the barrel of the throwing device is equipped with an optical registration system for the initial motion parameters of the fragment. This design of the stand allows you to carry out track tests of large-sized objects with a large mass for accidental impacts from high-energy fragments of a destroyed gas turbine engine using one unified rocket carriage with a throwing installation, which provides the impact of the fragment on a given area without acceleration of the test object, which greatly simplifies the experiment technology and design bench equipment.

Figure 1 shows a design diagram of the proposed stand.

Figure 2 shows a design diagram of a propelling device.

The stand contains a rocket carriage (1) mounted on rail guides (2), with rocket engines (3), a propelling device (4) and a fragment of a gas turbine engine (5), as well as a test object (6) (for example, an aircraft fuselage compartment ), motionlessly placed at a given point next to the path of the carriage. The throwing device is mounted on the carriage with the help of a rotary support (7) and is made in the form of a barrel (8) with a spring (9), a piston (10), a removable pallet (11) for fragments secured through the piston rod (12), adapted I have to compress the spring in the form of rods (13) with a retainer (14). The barrel of the throwing device is equipped with an optical registration system with sensors (15) for the initial parameters of the fragment motion.

The device operates as follows.

Before starting, the test object (6) is placed at a given point on the rocket track next to the trajectory of the rocket carriage (1). The throwing device (4) is mounted on the rocket carriage (1) with the help of a rotary support (7) with predetermined angles in the horizontal and vertical planes for directional impact on the required area of the test object. The pallet (11) with the debris (5) located in it is fixed through the rod (12) on the piston (10). The spring (9) with the help of the rod (13) is compressed and locked in a predetermined position by the latch (14). The rocket carriage (1) is accelerated by rocket engines (3) along the rail guides (2) of the rocket track. When the carriage (1) passes at a given speed of the test object placement zone (6), the clamp (14) of the compressed spring (9) is released and the debris (5) is released from the barrel (8) of the throwing device (4), while the initial parameters of free movement the debris (5) is fixed by sensors (15) of the optical registration system of the barrel. Further, the chip (5) freely moves along the ballistic trajectory until it collides with the test object (6), and the carriage (1) moves along the rail guides (2) until it stops.

Claims (3)

1. A test bench for testing materials, protective devices and structural elements when exposed to high-energy debris from gas turbine engines, including a test object and a rocket carriage with rocket engines mounted on it, characterized in that the test object is placed next to the carriage path, and the chip is mounted on the carriage in a throwing device that provides ejection of the debris into the test object when passing the carriage at a given speed of the zone of the object. 2. The stand according to claim 1, characterized in that the propelling device is placed on the carriage by means of a rotary support with the ability to set different angles of ejection of the debris in the vertical and horizontal planes to act on different parts of the test object. 3. The stand according to claim 1, characterized in that the throwing device is made in the form of a barrel with a spring, a piston, a rod, a removable tray to accommodate fragments of various shapes and sizes, devices for compressing the spring in the form of a rod connected to the piston, and a clamp spring position; the barrel of the throwing device is equipped with an optical registration system for the initial parameters of the motion of the fragment.