A Method for Multidisciplinary System Analysis Based on Minimal Feedback Variables
Joint Authors
Wu, Yizhong
Yin, Qian
Wang, Boxing
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-12-21
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
As modern engineering design usually involves dependence of one discipline on another, multidisciplinary system analysis (MDSA) plays an important role in the multidisciplinary simulation and design optimization on coupled systems.
The paper proposes an MDSA method based on minimal feedback variables (MDSA_MF) to enhance the solving efficiency.
There are two phases in the method.
In phase 1, design structural matrix (DSM) is introduced to represent a coupled system, and each off-diagonal element is denoted by a coupling variable set; then an optimal sequence model is built to obtain a reordered DSM with minimal number of feedback variables.
In phase 2, the feedback in the reordered DSM is broken, so that the coupled system is transformed into one directed acyclic graph; then, regarding the inputs depending on the broken feedback as independent variables, a least-squares problem is constructed to minimize the residuals of these independents and corresponding outputs to zero, which means the multidisciplinary consistence is achieved.
Besides, the MDSA_MF method is implemented in a multidisciplinary platform called FlowComputer.
Several examples of coupled systems are modeled and solved in the platform using several MDSA methods.
The results demonstrate that the proposed method could enhance the solving efficiency of coupled systems.
American Psychological Association (APA)
Yin, Qian& Wu, Yizhong& Wang, Boxing. 2017. A Method for Multidisciplinary System Analysis Based on Minimal Feedback Variables. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1189563
Modern Language Association (MLA)
Yin, Qian…[et al.]. A Method for Multidisciplinary System Analysis Based on Minimal Feedback Variables. Mathematical Problems in Engineering No. 2017 (2017), pp.1-14.
https://search.emarefa.net/detail/BIM-1189563
American Medical Association (AMA)
Yin, Qian& Wu, Yizhong& Wang, Boxing. A Method for Multidisciplinary System Analysis Based on Minimal Feedback Variables. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1189563
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1189563