Shop : Details
Shop
Details
48,80 €ISBN 978-3-8440-8306-4Softcover182 pages211 figures269 g21 x 14,8 cmEnglishThesis
November 2021
Saad Eddine Hafsa
Topology optimization method for the adaptation of mechanical structures
Adaptation of structures is done when an object is used commonly in a product family with variants having different requirement levels. An example of this process is when a series vehicle is the basis for the design of a motorsport vehicle where stiffness and rigidity behavior have to be adapted to a new specific use. To do so, reinforcements are added using specific struts and framework structures.
To find the topology of these reinforcing structures, the known topology optimization methods do not deliver satisfying results because the added material is spread on the surface of the basis structure, which makes their manufacturing difficult and costly.
In this thesis, an analysis of the adaptation task from the structural point of view is made and compared to the classical structural design and optimization task from scratch. All adaptation cases are classified depending on the type of basis structure and the investigated load case. Furthermore, some benchmark problem statements to assess the performance of adaptation methods are proposed.
A new method is presented that allows to generate reinforcing structures that are producible, without significant loss in performance compared to the results obtained with the so far available methods. In order to give the user more control over the optimization outcome, several features are implemented as input parameter such as the distance between basis and added structures or the properties of the connections between them.
To validate the method, an extensive parameter study applied on several adaptation cases and on 2D and 3D models is conducted. Finally some further adaptation cases are investigated, such as when members of the basis structure are removed and sequential steps adaptations.
To find the topology of these reinforcing structures, the known topology optimization methods do not deliver satisfying results because the added material is spread on the surface of the basis structure, which makes their manufacturing difficult and costly.
In this thesis, an analysis of the adaptation task from the structural point of view is made and compared to the classical structural design and optimization task from scratch. All adaptation cases are classified depending on the type of basis structure and the investigated load case. Furthermore, some benchmark problem statements to assess the performance of adaptation methods are proposed.
A new method is presented that allows to generate reinforcing structures that are producible, without significant loss in performance compared to the results obtained with the so far available methods. In order to give the user more control over the optimization outcome, several features are implemented as input parameter such as the distance between basis and added structures or the properties of the connections between them.
To validate the method, an extensive parameter study applied on several adaptation cases and on 2D and 3D models is conducted. Finally some further adaptation cases are investigated, such as when members of the basis structure are removed and sequential steps adaptations.
Keywords: Topology optimization; adaptation; reinforcement; pre-existing members; density method; geometric features;
Available online documents for this title
You need Adobe Reader, to view these files. Here you will find a little help and information for downloading the PDF files.
Please note that the online documents cannot be printed or edited.
Please also see further information at: Help and Information.
Please also see further information at: Help and Information.
| Document |  | Document | ||
| Type |  | |||
| Costs |  | 36,60 € | ||
| Action |  | Purchase in obligation and download the file | ||
| Document |  | Table of contents | ||
| Type | | |||
| Costs |  | free | ||
| Action |  | Download the file | ||
User settings for registered online customers (online documents)
You can change your address details here and access documents you have already ordered.
User
Not logged in
Export of bibliographic data
Shaker Verlag GmbH
Am Langen Graben 15a
52353 Düren
Germany
Am Langen Graben 15a
52353 Düren
Germany
Mon. - Thurs. 8:00 a.m. to 4:00 p.m.
Fri. 8:00 a.m. to 3:00 p.m.
Fri. 8:00 a.m. to 3:00 p.m.
Contact us. We will be happy to help you.
