Multidisciplinary integrated design method utilizing reliability as independent discipline

A comprehensive design and reliability technology, applied in computing, special data processing applications, instruments, etc., can solve the problems of high maintenance cost, complex structure, involving many disciplines, etc., to improve robustness, improve optimization efficiency, and improve convergence speed. quick effect

Inactive Publication Date: 2011-05-11
BEIHANG UNIV
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Problems solved by technology

[0002] At present, in the product design process, there is a phenomenon that the product design process and the reliability analysis process are separated from each other, and the reliability of the product cannot be designed into the product, resulting in problems such as many failures, low service life, and high maintenance costs during use.
However, due to the complex structure and many disciplines involved in complex products, the reliability problem is particularly prominent.
The emergence of multi-disciplinary d

Method used

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  • Multidisciplinary integrated design method utilizing reliability as independent discipline
  • Multidisciplinary integrated design method utilizing reliability as independent discipline
  • Multidisciplinary integrated design method utilizing reliability as independent discipline

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Embodiment Construction

[0069] In the following, combined with the case of the multidisciplinary comprehensive design of a certain type of UAV, the implementation of the multidisciplinary comprehensive design method with reliability as an independent discipline will be further explained.

[0070] In this case, under the condition that the fuselage size, internal structure, and power system of a UAV remain unchanged, the multidisciplinary comprehensive design of its wing parameters and control parameters is carried out, and the disciplines of aerodynamics, stealth, control, and reliability are optimized. , a kind of multidisciplinary comprehensive design method with reliability as independent subject of the present invention, it comprises the following steps:

[0071] 1) Considering the fault types such as jamming, looseness, damage of the operation surface and sensor jamming, damage, deviation, etc., based on the UAV control model built in the Simulink environment, the "reliability model automatic gen...

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Abstract

The invention relates to a multidisciplinary integrated design method utilizing reliability as an independent discipline, comprising the followings steps: firstly, establishing a reliability simulation model by adopting a reliability model automatic generating method, and carrying out simulation for multiple times by adopting a Monte-Carlo method so as to calculate the reliability; secondly, constructing a reliability pseudo model by adopting a pseudo modelling method on the basis of the reliability simulation model; thirdly, constructing a reliability discipline model by utilizing the multi-complexity technology on the basis of the reliability simulation model and the pseudo model; fourthly, establishing pseudo models of other disciplines to serve as other discipline models; fifthly, establishing a whole optimization model containing the reliability discipline model; sixthly, decomposing the model to obtain a hierarchical multidisciplinary design optimization model; and seventhly, optimizing by adopting an improved collaborative optimization algorithm until an optimal design scheme is obtained. According to the invention, autonomy of the reliability discipline is maintained while integrated optimization is carried out on the reliability and performances, thus being beneficial to multianalysis and quantitative control on the reliability.

Description

technical field [0001] The invention provides a multidisciplinary comprehensive design method with reliability as an independent discipline, relates to multidisciplinary design optimization technology and reliability analysis technology, and belongs to complex product comprehensive design technology. Background technique [0002] At present, in the product design process, there is a phenomenon that the product design process and the reliability analysis process are separated from each other, and the reliability of the product cannot be designed into the product, resulting in problems such as many failures, low service life, and high maintenance costs during use. . However, due to the complex structure and many disciplines involved in complex products, the reliability problem is particularly prominent. The emergence of multidisciplinary design optimization technology that can make full use of the mutual influence and coupling effect between various disciplines provides new i...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 郭健彬曾声奎任羿马纪明冯强孙博王星皓石文生
Owner BEIHANG UNIV
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