A Design Method of Accelerated Reliability Test Scheme Based on Environmental Reduction
A test plan and reliability technology, which is applied in the field of accelerated reliability test plan design based on environmental conversion, can solve the problems of high test conditions and inability to make full use of product reliability test information, etc.
Inactive Publication Date: 2019-12-20
BEIHANG UNIV
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Problems solved by technology
The current accelerated reliability test technology has high requirements on test conditions, and cannot make full use of the reliability test information carried out in the product development stage
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[0074] Take the communication server of a research institute as an example, combined with the attached figure 1 , The present invention will be described in further detail.
[0075] The communication server is a dedicated system in the communication service system, which provides communication services for users on the network who need to transmit files or access information on remote systems or networks through remote communication links. Because the communication server equipment is in the product development stage and its price is expensive, the reliability data of the product is relatively lacking. Only five groups of reliability bottoming tests were carried out for one communication server. The test data is shown in Table 1. The environmental conversion coefficient of each test is determined by comprehensive expert experience knowledge and similar product information. The temperature range that can be provided in the engineering test is -10℃~40℃, the relative humidity range ...
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The invention provides an acceleration reliability test scheme design method based on environment referring, comprising the steps of I, analyzing reliability test time demand; II, judging reliabilitytest time feasibility; III, establishing an acceleration reliability model; IV, estimating parameters of the acceleration reliability model (9); V, designing an acceleration reliability test scheme. The acceleration reliability test scheme design method based on environment referring is provided herein by implementing the above steps; product reliability test time can be effectively shortened; theactual problems in product reliability test scheme design under product reliability requirements and actually-implementable reliability test time constraints can be solved; scientific basis is provided for project designers to carry out acceleration reliability tests according to realistic conditions; the method has important theoretical and practical significances and can meet the practical application needs.
Description
Technical field [0001] The invention provides a method for designing accelerated reliability test schemes based on environmental reduction, which relates to a quantitative model based on environmental reduction coefficients and environmental stress to determine product accelerated reliability test scheme design, which can effectively shorten the reliability test time , Effectively solve the reliability test plan design problem under the constraints of reliability requirements and actual reliability test time. This patent is applicable to related technical fields such as reliability test and evaluation. Background technique [0002] Reliability test is the general term for various tests conducted to understand, evaluate, analyze and improve the reliability of products or systems. Its purpose is to find various defects in product design, materials and processes. After analysis and improvement , Make the product reliability gradually increase, and finally reach the predetermined re...
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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 杨军孔雪峰
Owner BEIHANG UNIV