國立虎尾科技大學 |

Topology optimization based on morphing mesh for simultaneous component relocation and frame structure design.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Topology optimization based on morphing mesh for simultaneous component relocation and frame structure design./
作者:	Bakhtiarinejad, Mahsan.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2015,
面頁冊數:	87 p.
附註:	Source: Masters Abstracts International, Volume: 77-02.
Contained By:	Masters Abstracts International77-02.
標題:	Mechanical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1594928
ISBN:	9781321926781

Topology optimization based on morphing mesh for simultaneous component relocation and frame structure design.
Bakhtiarinejad, Mahsan.

Topology optimization based on morphing mesh for simultaneous component relocation and frame structure design. - Ann Arbor : ProQuest Dissertations & Theses, 2015 - 87 p.

Source: Masters Abstracts International, Volume: 77-02.

Thesis (M.S.)--University of Maryland, Baltimore County, 2015.

This item must not be sold to any third party vendors.

This thesis research proposes a new topology optimization method based on morphing mesh (TOMM) technique in order to determine the optimal layout of components as well as the frame structure. In this method, two types of design variables—morphing design variables and topology design variables—are defined for simultaneous design optimization of the components relocation and frame structure topology. Component relocation is enabled using FE Morphing approach, implemented by HyperMesh, on the basis of the SIMP method for compliance minimization of frame structure. Three design cases are studied using TOMM method: a simple cantilever beam design and two aircraft wing designs. The prevalent cantilever beam with a nodal force in the middle of the free end is studied to validate the proposed design methodology. Aircraft wing design cases are intended to obtain the best conceptual design by determining optimal placement of various subsystems—control system (flight control, engine control), fuel system, hydraulic system, and structural system—and the supporting frame structure. An advanced systematic design approach is needed for effective packaging of multiple subsystems while satisfying load—carrying performance and minimizing weight for energy efficiency. In the first wing design case, additional constraint on maintaining the weight balance is included and the corresponding design sensitivity is formulated. Then this wing design strategy is extensively applied to the commercial Boeing 757 aircraft wing where TOMM method is combined with the genetic algorithm for global search on component locations. The benefit of using the global search algorithm (genetic algorithm) is discussed in terms of high possibility on finding a global optimum and independency of initial design guess. The results of the TOMM method for simultaneous design optimization of components layout and structural topology have been compared to the classical structural topology optimization without component relocation. It has been proved that the inclusion of component relocation can improve structural performance. The proposed TOMM method will provide innovative design insight for complex modern multi—component structure.

ISBN: 9781321926781Subjects--Topical Terms:

557493
Mechanical engineering.
Subjects--Index Terms:

Aircraft wing

Topology optimization based on morphing mesh for simultaneous component relocation and frame structure design.
LDR:03549nam a2200421 4500 001 1121828
005 20240624103644.5
006 m o d
007 cr#unu||||||||
008 240823s2015 ||||||||||||||||| ||eng d
020 $a 9781321926781
035 $a (MiAaPQ)AAI1594928
035 $a (MiAaPQ)umbc:11231
035 $a AAI1594928
040 $a MiAaPQ $c MiAaPQ
100 1 $a Bakhtiarinejad, Mahsan. $3 1437617
245 1 0 $a Topology optimization based on morphing mesh for simultaneous component relocation and frame structure design.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2015
300 $a 87 p.
500 $a Source: Masters Abstracts International, Volume: 77-02.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Lee, Soobum.
502 $a Thesis (M.S.)--University of Maryland, Baltimore County, 2015.
506 $a This item must not be sold to any third party vendors.
520 $a This thesis research proposes a new topology optimization method based on morphing mesh (TOMM) technique in order to determine the optimal layout of components as well as the frame structure. In this method, two types of design variables—morphing design variables and topology design variables—are defined for simultaneous design optimization of the components relocation and frame structure topology. Component relocation is enabled using FE Morphing approach, implemented by HyperMesh, on the basis of the SIMP method for compliance minimization of frame structure. Three design cases are studied using TOMM method: a simple cantilever beam design and two aircraft wing designs. The prevalent cantilever beam with a nodal force in the middle of the free end is studied to validate the proposed design methodology. Aircraft wing design cases are intended to obtain the best conceptual design by determining optimal placement of various subsystems—control system (flight control, engine control), fuel system, hydraulic system, and structural system—and the supporting frame structure. An advanced systematic design approach is needed for effective packaging of multiple subsystems while satisfying load—carrying performance and minimizing weight for energy efficiency. In the first wing design case, additional constraint on maintaining the weight balance is included and the corresponding design sensitivity is formulated. Then this wing design strategy is extensively applied to the commercial Boeing 757 aircraft wing where TOMM method is combined with the genetic algorithm for global search on component locations. The benefit of using the global search algorithm (genetic algorithm) is discussed in terms of high possibility on finding a global optimum and independency of initial design guess. The results of the TOMM method for simultaneous design optimization of components layout and structural topology have been compared to the classical structural topology optimization without component relocation. It has been proved that the inclusion of component relocation can improve structural performance. The proposed TOMM method will provide innovative design insight for complex modern multi—component structure.
590 $a School code: 0434.
650 4 $a Mechanical engineering. $3 557493
650 4 $a Aerospace engineering. $3 686400
650 4 $a Design. $3 595500
653 $a Aircraft wing
653 $a Component relocation
653 $a Fe morphing
653 $a Simp
653 $a Topology optimization
690 $a 0389
690 $a 0538
690 $a 0548
710 2 $a University of Maryland, Baltimore County. $b Engineering, Mechanical. $3 1178896
773 0 $t Masters Abstracts International $g 77-02.
790 $a 0434
791 $a M.S.
792 $a 2015
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1594928