Test method based on multi-axis swing and vibration composite test platform

Abstract

The invention discloses a test method based on a multi-axis swing and vibration composite test platform, and belongs to the technical field of reliability simulation tests. The method comprises the following implementation steps: determining a mission profile, and obtaining a test load magnitude; selecting a test piece, and carrying out appearance inspection and function inspection; installing thetest piece on the clamp; installing sensors on the test piece and the test bench; checking the functions of the test bench, the clamp and the measuring system, and checking the input-output corresponding relation of the swing function of the test bench; applying specified vibration and swing loads to the test piece, and performing equivalence verification; finally, opearting the test piece, starting a reliability simulation test, and monitoring vibration and swing values in real time. According to the method, the tester can be guided to fully utilize the test platform to complete the reliability simulation test under the vibration and swing loads.

Description

technical field [0001] The invention belongs to the technical field of reliability simulation tests, and in particular relates to a test method based on a multi-axis swing and vibration composite test platform. Background technique [0002] Various methods can be used to evaluate the reliability of equipment, among which the reliability simulation bench test for equipment is more commonly used. For ship-borne electromechanical equipment, the main loads it receives during operation are vibration and sway, in which the vibration acceleration brought by the engine can reach 30g, and external forces such as wind and waves can cause the hull to sway ±45°. The existing simulation test method is to simplify the load, only carry out the vibration simulation test and ignore the swing load, or vice versa, only carry out the swing simulation test. Due to the current simplification of the test, a corresponding test rig capable of simultaneously providing vibration and sway loads has no...

AI Technical Summary

Problems solved by technology

[0013] Whether it is GJB150.16A-2009 or GJB150.23A-2009, the load involved in the test method, whether it is a vibration load or a swing load, is a single load, and it is feasible to verify the vibration resistance or swing resistance of the equipment. , but it is impossible to reproduce the real working conditions of the ship-borne electromechanical equipment, that is, the reliability evaluation of the ship-borne electromechanical equipment under the real working environment cannot be completed

The use of this simplified single load for the reliability test of ship-borne electromechanical equipment makes the test not equitable, which leads to the fact that some ship electromechanical Failures occur frequently after a short period of use

At the same time, since the test bench that can apply vibration and sway loads at the same time has not been developed, the corresponding test method for the reliability simulation test under the combined load of vibration and sway has not been formulated.

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