Vibration testing method for ignition device of aviation engine

Abstract

The invention provides a vibration testing method for the ignition device of an aviation engine, and provides standard steps for the operation of vibration testing process for ignition device of aviation engine. The method solves the accuracy of a product vibration test and the consistency of the vibration test result of batch products. The method solves the problems of material selection, shape design, fixture roughness requirement, determination of the installation position of the ignition device on a fixture, and fastening manner of an ignition device on the fixture during the design of thefixture. The rigid connection between the ignition device and a vibration testing bench is ensured through the reasonable design of the vibration fixture. A sensor is used for monitoring during the vibration test, and the selection of the sensor sensitivity, the sensor installation angle, the selection of the sensor control point, the fixing of the sensor, the wiring of the sensor and so on are used to explained, which ensures the reliability of the signal testing results during the vibration test.

Description

technical field [0001] The invention belongs to the technical field of vibration test and detection of an ignition device for an aero-engine, in particular to a vibration test method for an ignition device for an aero-engine. Background technique [0002] During World War II, after many aircrafts, ships, vehicles and equipment were used, it was unexpectedly found that the proportion of components lost to zero was relatively high. After research, it was found that most of the original components were loose because their structures could not withstand the long-term resonance generated by themselves. , cracking, and even cause huge damage to the machine parts. With the improvement of reliability requirements for products, especially automobiles, aviation, aerospace and other products, the development of vibration test system, which is the key equipment of reliability test, is becoming more and more important. Therefore, the necessity of vibration test is to evaluate the anti-v...

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Problems solved by technology

[0002] During World War II, after many aircrafts, ships, vehicles and equipment were used, it was unexpectedly found that the proportion of components lost to zero was relatively high. After research, it was found that most of the original components were loose because their structures could not withstand the long-term resonance generated by themselves. , cracking, and the parts are lost or even cause huge damage

[0004] However, the current test methods related to the standard only stipulate test conditions, test equipment, test procedures, etc., and do not involve the implementation process of specific product vibration test methods, that is, the design of vibration test fixtures and the application of sensors are usually taken into consideration. , in order to ensure that in the test process, the energy output by the vibrating table should be transmitted to the product without distortion as much as possible, so as to achieve the purpose of simulating and evaluating the vibration resistance of the product

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