Rail transit electrical equipment reliability test method

Abstract

The invention discloses a rail transit electrical equipment reliability test method. The method comprises the test process with one or more test cycles and the test process of adding one or more on / off test process, performance test process and noise immunity test process in the specific period of one test cycle, wherein the test process with one or more test cycles comprises combination of any stress level and time sequence of one or more of humidity stress test process, temperature stress test process, vibration stress test process and electric stress test process. According to the method, the potential defects of the tested rail transit electrical equipment are completely exposed at the early development stage, the reliability of the rail transit electrical equipment is improved, and the maintenance cost of the rail transit electrical equipment in the full-life period is effectively reduced; the change rule of the tested equipment along with the using time of users can be reflected and basis is provided for quality guarantee; and the reliability index of the equipment can be distributed to the related devices, and the reliability of the rail transit electrical equipment is improved by improving the reliability of the devices.

Description

technical field [0001] The invention relates to a test method for rail transit electrical equipment, in particular to a reliability test evaluation method applied to rail transit on-road and off-road electrical equipment and the like. Background technique [0002] At present, the field of rail transit is developing rapidly towards high-speed and heavy-duty. The functions of railway products are increasing and the structure is becoming more and more complex, which has caused people to pay more and more attention to quality and safety. This puts forward the reliability of rolling stock products. higher requirement. [0003] The reliability test profile of rail transit electrical equipment is the core content of the reliability test of rail transit electrical equipment. At present, there is no executable relevant reliability test standard in domestic official documents, let alone a suitable reliability test for rail transit electrical equipment. The test profile and reliabilit...

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Problems solved by technology

[0003] The reliability test profile of rail transit electrical equipment is the core content of the reliability test of rail transit electrical equipment. At present, there is no executable relevant reliability test standard in domestic official documents, let alone a suitable reliability test for rail transit electrical equipment. The test profile and reliability life index requirements have not been formulated and published so far

In addition, the investigation of the work carried out by domestic rail transit electrical equipment manufacturers in this field shows that this work is in its infancy, and none of the relevant test methods involves the concept of reliability test profiles, which are only completed when the products leave the factory. Its single-environment adaptability type test does not consider comprehensive environmental simulation and reliability index evaluation

[0004] The existing reliability evaluation methods do not involve a reasonable reliability test profile of rail transit electrical equipment. Manufacturers of rail transit electrical equipment mostly use the test data accumulated in various performance tests and type tests to evaluate reliability indicators. The test environment experienced by the product is quite different from the actual environment, which is contrary to the basic principle that the reliability test should simulate the actual use environment of the product, let alone a reasonable and accurate evaluation

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