Roll-control electronic module storage reliability assessment method integrating process and reliability block diagram

An electronic module and reliability technology, applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem that the storage reliability of the rolling control electronic module cannot be accurately evaluated, and the dispersion characteristics of the degradation process of the rolling control electronic module cannot be accurately reflected. and other problems to achieve the effect of improving the accuracy of storage reliability assessment and solving the low accuracy of storage reliability assessment.

Inactive Publication Date: 2018-11-30
HARBIN INST OF TECH
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  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of small samples in the process of evaluating the storage reliability of the rolling control electronic module, it is impossible to accurately reflect the dispersion characteristics of the degradation process of the rolling control electronic module due to the manufacturing process, so that the storage reliability of the rolling control electronic module cannot be accurately evaluated. The invention provides a method for evaluating the storage reliability of a rolling control electronic module combined with a process and a reliability block diagram

Method used

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  • Roll-control electronic module storage reliability assessment method integrating process and reliability block diagram
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  • Roll-control electronic module storage reliability assessment method integrating process and reliability block diagram

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specific Embodiment approach 1

[0026] Specific implementation mode 1: This implementation mode provides a method for evaluating the storage reliability of relays in a stand-alone relay combined with a process and a reliability block diagram. First, by establishing a simulation model of the function of the rolling control electronic module, combined with the manufacturer's research results, the sensitivity analysis method is used to determine The underlying key components that affect the output characteristics of the rolling control electronic module; then, combined with the failure mode and failure mechanism analysis, the initial distribution of output characteristic parameters and the measured data of the accelerated storage degradation test, the storage degradation data of the underlying key components with distribution characteristics are obtained; finally , combined with the failure threshold and the established reliability block diagram of the rolling control electronic module, the storage reliability of...

specific Embodiment approach 2

[0036] Specific implementation mode two: this implementation mode takes the rolling control electronic module as the object to carry out the storage reliability evaluation combined with the process and the reliability block diagram, such as figure 1 As shown, the specific steps are as follows:

[0037] Step 1: According to the function and schematic diagram of the rolling control electronic module, establish the following in the SABER circuit simulation software. figure 2 The simulation model of the function of the rolling control electronic module is shown.

[0038] Step 2: Based on the function simulation model of the rolling control electronic module established in step 1, using the sensitivity analysis method and using the manufacturer's research results, it is finally determined that the key components of a certain type of rolling control electronic module are metal film resistors, polymetallic grease Film capacitors, wire wound potentiometers, Zener diodes, relays, con...

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Abstract

The invention discloses a roll-control electronic module storage reliability assessment method integrating a process and a reliability block diagram. The method comprises the steps that firstly, a roll-control electronic module function simulation model is established, a sensitivity analyzing method is utilized to determine bottom-layer key components and devices affecting output characteristics of a roll-control electronic module by combining with investigation results of manufacturers; secondly, initial distribution of output characteristic parameters is analyzed by combining with a failuremode and a failure mechanism, storage of degeneration test measured data is promoted, and storage degeneration data of the bottom-layer key components and devices having distribution characteristics is obtained; finally, by combining with a failure threshold value and the established roll-control electronic module storage reliability block diagram, the roll-control electronic module storage reliability is obtained. The problem is solved that the accuracy of roll-control electronic module storage reliability assessment is low under the small sub-sample problem, and a new thought is provided forroll-control electronic module storage reliability assessment.

Description

technical field [0001] The invention belongs to the technical field of product performance analysis of rolling control electronic modules, and relates to a storage reliability evaluation method of rolling control electronic modules, in particular to a storage reliability evaluation method of rolling control electronic modules combined with a process and a reliability block diagram. Background technique [0002] For some products (missiles, launch vehicles, and space shuttles), they are mainly in storage during their entire life cycle, that is, they have the characteristics of "long-term storage and one-time use". Due to the long-term impact of storage environment stress such as temperature, humidity, vibration, salt spray, etc., the output characteristics of the above products will degrade. When the threshold value specified by the functional index is exceeded, the product will fail, and continued use will cause inestimable losses. . At the same time, the above-mentioned si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/367G06F2119/04
Inventor 翟国富郑博恺司爽林义刚叶雪荣
Owner HARBIN INST OF TECH
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