Method for testing the reliability of complex systems

A complex system and reliability technology, applied in testing/monitoring control systems, general control systems, reliability/availability analysis, etc., can solve problems such as harsh testing and ignoring risks

Inactive Publication Date: 2014-02-19
UPTIME HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] The disadvantage of such a procedure is that each test usually has to be designed in a particular way to obtain prognostic life or usability, and in complex cases some tests may be too demanding
At the same time, potential risks may be overlooked

Method used

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  • Method for testing the reliability of complex systems
  • Method for testing the reliability of complex systems
  • Method for testing the reliability of complex systems

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0040] First, refer to figure 1 Explain the method.

[0041] Step 1: Define the system to be checked and determine the total availability that must be achieved.

[0042] Step 2: Build a hierarchical structure tree containing all components of the system representing its structure.

[0043] Step 3: Technical and supplementary risks that may affect product availability are identified and assigned to the corresponding System Tree nodes representing components of the system.

[0044] Step 4: Perform a risk assessment by considering the relevant circumstances affecting the failure risk associated with each individual component, and assign availability targets based on such assessment.

[0045] Steps 5a1 to 5c2 can partly be performed in parallel to each other, so they are represented on three branches.

[0046] Step 5a1: Possible a priori failure modes are analyzed and assigned to nodes in the system tree. Stress parameters relevant for setting the physics of the failure model ...

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PUM

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Abstract

The invention relates to a method for testing the reliability of complex systems, comprising the following steps: establishing a system hierarchy of several levels by identifying components of the system; identifying and assigning failure modes to components; determining test procedures for failure modes; reliable information about the availability of technical systems with the least amount of tests can be obtained by the following steps: identifying a level for allocating availability targets to components establishing a hierarchical decomposition of the system; allocating availability targets to the components identified in the previous step by qualitative methods; calculating a projected availability of all components; identifying components for which availability targets are not met by said projected availability and selecting another test or increasing severity of tests already selected till availability targets are met; and calculating an overall availability of the system.

Description

technical field [0001] The invention relates to a method for testing the reliability of complex systems according to the preamble of claim 1, including the evaluation and optimization of the availability of such systems. Background technique [0002] Studying the reliability of complex systems is an important part of the design and production process. To obtain reliable results related to reliability, it is not enough to perform the tests, the test procedure must be carefully planned and the test results must also be analyzed in such a way that statistically reliable results can be obtained. [0003] Such a method includes the following steps: [0004] a. Establish a system hierarchy with several layers by identifying the components of the system. A system is a complex technical entity, such as a machine or a vehicle, which consists of parts here designated as components. The components themselves may be composed of parts, so that a hierarchical structure is established i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
CPCG06F11/008G06F11/26G05B23/0251
Inventor C·格雷N·哈塞尔格鲁伯F·朗玛丽
Owner UPTIME HLDG
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