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A reliability evaluation method of mechanical and electrical product simulation model based on non-probabilistic measurement

A technology for simulation models and electromechanical products, applied in design optimization/simulation, etc., can solve problems such as inaccurate parameters, reduce test costs, objective modeling quality evaluation results, and reduce the number of physical tests.

Active Publication Date: 2022-07-15
HUNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the complexity of electromechanical products and measurement errors, the parameters are inaccurate when building the simulation model, which leads to a certain gap between the simulation model and the actual physical test output

Method used

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  • A reliability evaluation method of mechanical and electrical product simulation model based on non-probabilistic measurement
  • A reliability evaluation method of mechanical and electrical product simulation model based on non-probabilistic measurement
  • A reliability evaluation method of mechanical and electrical product simulation model based on non-probabilistic measurement

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Embodiment Construction

[0030] Below in conjunction with the accompanying drawings, as figure 1 The preferred embodiments of the present invention are specifically described with reference to the reliability evaluation of the shown smart bracelet simulation model, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to explain the principles of the present invention.

[0031] The smart bracelet is highly integrated in a limited space by tiny components, so it has high requirements for the electronic packaging design of thermal, mechanical and electrical performance. In order to test whether the smart bracelet meets the requirements, the test is usually carried out under extreme impact and relatively high temperature. Therefore, some numerical models are inevitably used to replace the real model of the smart bracelet. How to evaluate whether these numerical models are effective? Replacing the real model becom...

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Abstract

The invention discloses a method for evaluating the reliability of a simulation model of an electromechanical product based on a non-probability measurement. Taylor expansion of the function is performed to obtain the approximate linear model equation of the system; the response model equation divides the uncertainty domain of the parameters into two parts; at the model credibility verification point, the probability distribution function of the response of the mechanical and electrical product simulation model is calculated. Integral transformation to obtain the standard uniform distribution; compare the uniform distribution and the empirical distribution to obtain the area of ​​the closed area of ​​the two distributions, and realize the reliability evaluation of the simulation model of electromechanical products. By analyzing the influence of uncertain parameters on the modeling quality, the invention objectively quantitatively evaluates the validity of the electromechanical product simulation model and the degree of substituting actual physics.

Description

technical field [0001] The invention relates to a method for evaluating the reliability of a simulation model of an electromechanical product, in particular to a method for evaluating the reliability of a simulation model of an electromechanical product based on a non-probabilistic measure. Background technique [0002] An electromechanical product is usually a complex structural system coupled with multiple sources, multiple disciplines and multiple processes. Electromechanical products usually have limitations such as high test conditions, high cost, and long cycle time. It is difficult to meet the analysis requirements for the function and behavior of the product or its subsystems. Numerical simulation technology can reduce the number of experiments and tests of physical prototypes, and can effectively overcome the bottleneck of quality and efficiency in traditional analysis and design methods, and has been widely used in various fields. However, due to the complexity an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
Inventor 刘杰曹立雄韦柳仁张连怡张晗杨凯
Owner HUNAN UNIV