A Summary of MDO Based High Integrated Performance Aero-Engine Research Program

Yin, Zeyong; Mi, Dong; Wu, Liqiang; Xiao, Gensheng; Liu, Feichun; Li, Lijun

doi:10.2514/6.2008-1806

Cited by 2 publications

(2 citation statements)

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“…The multidisciplinary analysis (MDA) technique adopted in this paper, where several analyses like rigid body dynamic analysis, fluid mechanic analysis, and structural mechanic analysis are carried out simultaneously and related to each other, is a noble and emerging new technology in the numerical structural analysis and design [20]. Nowadays, multidisciplinary analysis and design optimization techniques are efficiently applied to a large complicated scale structural analysis problem [21][22]. Fatigue fracture analysis due to the alternating stress [23][24][25] and the fracture analysis due to the cavitation [26][27] are not treated in this paper, because the in vivo leaflet fractures of the bileaflet MHV prostheses due to these kinds of phenomena have not been reported even though some BHV prostheses have been reported to have these kinds of fracture problems.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis for the structural strength comparison of St. Jude Medical and Edwards MIRA bileaflet mechanical heart valve prostheses

Kwon

2010

J Mech Sci Technol

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This paper presents a numerical analysis for the structural strength comparison of the St. Jude Medical bileaflet mechanical heart valve prosthesis with flat leaflet and the Edwards MIRA bileaflet mechanical heart valve prosthesis with curved leaflet. Computer aided engineering systems are used in the analysis. The blood fluid pressure is applied to both flat and curved leaflets of the bileaflet mechanical heart valve prostheses for the rigid body dynamic analysis to confirm the almost same dynamic characteristics of both flat and curved leaflet motions. Thereafter, using the same blood fluid pressure and dynamic characteristics of leaflet motions, structural mechanic analyses for both flat and curved leaflets of the mechanical heart valve prostheses are carried out to show quite different stress and deformation results, respectively. Conclusively, from the viewpoint of stress, it is revealed that the St. Jude Medical bileaflet mechanical heart valve prosthesis is structurally stronger and better than the Edwards MIRA bileaflet mechanical heart valve prosthesis. Computer aided engineering systems used in this comparative structural analysis are ADAMS for the rigid body dynamic analysis, and NISA for the structural mechanic analysis.

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Section: Introductionmentioning

confidence: 99%

Numerical analysis for the structural strength comparison of St. Jude Medical and Edwards MIRA bileaflet mechanical heart valve prostheses

Kwon

2010

J Mech Sci Technol

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“…Multidisciplinary design optimization (MDO) has the ability for efficiently organizing the design process and obtaining the consistent optimal solution. Many research studies have been carried out on this topic and made great progress [1,2]. Despite these advances, the design of complex engineering systems remains a challenge [3,4].…”

Section: Introductionmentioning

confidence: 99%

Applying the disciplinary relation matrix to multidisciplinary design optimization modeling and solving

2017

Journal of Systems Engineering and Electronics

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A new efficient coupling relationship description method has been developed to provide an automated and visualized way to multidisciplinary design optimization (MDO) modeling and solving. The disciplinary relation matrix (DRM) is proposed to describe the coupling relationship according to disciplinary input/output variables, and the MDO definition has been reformulated to adopt the new interfaces. Based on these, a universal MDO solving procedure is proposed to establish an automated and efficient way for MDO modeling and solving. Through a simple and convenient initial configuration, MDO problems can be solved using any of available MDO architectures with no further effort. Several examples are used to verify the proposed MDO modeling and solving process. Result shows that the DRM method has the ability to simplify and automate the MDO procedure, and the related MDO framework can evaluate the MDO problem automatically and efficiently.

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A Summary of MDO Based High Integrated Performance Aero-Engine Research Program

Cited by 2 publications

References 1 publication

Numerical analysis for the structural strength comparison of St. Jude Medical and Edwards MIRA bileaflet mechanical heart valve prostheses

Numerical analysis for the structural strength comparison of St. Jude Medical and Edwards MIRA bileaflet mechanical heart valve prostheses

Applying the disciplinary relation matrix to multidisciplinary design optimization modeling and solving

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