Static target plate impact test device for simulating centrifugal force effect through electromagnetic loading and control method

Abstract

The invention discloses a static target plate impact test device for simulating a centrifugal force effect through electromagnetic loading. The static target plate impact test device comprises a base,a mounting seat, a magnetic bayonet, a rotor blade and a tensile load loading system, wherein the tensile load loading system comprises a hydraulic actuator cylinder for applying an initial load, a strain gauge for feeding back a load signal, an electromagnet for finely adjusting the load, and a controller, and the controller is used for receiving a tensile load feedback signal of the rotor bladeand controlling the starting of an oil cylinder and the electromagnet. The test device is advantaged in that movement of the magnetic bayonet can be controlled by adjusting the oil pressure of the hydraulic actuator cylinder and the current of the electromagnet so that the rotor blade reaches an accurate set tensile load, the rotor blade foreign object damage test in the centrifugal preload environment can be carried out through a simple structure. The invention further provides a control method of the test device.

Description

technical field [0001] The invention relates to the test field of foreign object damage to an aviation gas turbine engine blade, in particular to a static target plate impact test device for simulating the action of centrifugal force by electromagnetic loading. Background technique [0002] At present, the rotor blades of aviation gas turbine engines need to be tested for foreign object damage. The rotor blades have a large centrifugal force during operation, and the impact resistance of components with preload such as centrifugal force is quite different from that without preload. Therefore, This should be taken into account during testing and analysis. [0003] In the related technical field, the centrifugal load applying devices used in the existing impact test include: 1. High-speed rotating machinery with fast rotation speed, difficult to accurately control the impact point and high risk factor. 2. For the hydraulic stretching machine, the liquid is compressible, so hi...

AI Technical Summary

Problems solved by technology

[0003] In the related technical field, the centrifugal load application devices used in the existing impact test include: 1. High-speed rotating machinery with fast speed, difficult to accurately control the impact point and high risk factor

2. For hydraulic stretching machines, the liquid is compressible, so high precision cannot be obtained, and its working performance is easily affected by temperature changes.

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