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http://dx.doi.org/10.3795/KSME-A.2016.40.4.363

Topology Optimization of a Vibrating System of Rigid and Flexible Bodies for Maximizing Repeated Eigenfrequencies  

Ahn, Byungseong (Dept. of Mechanical and Aerospace Engineering & IAMD, Seoul Nat'l Univ.)
Kim, Suh In (Dept. of Mechanical and Aerospace Engineering & IAMD, Seoul Nat'l Univ.)
Kim, Yoon Young (Dept. of Mechanical and Aerospace Engineering & IAMD, Seoul Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.40, no.4, 2016 , pp. 363-372 More about this Journal
Abstract
When a system consisting of rigid and flexible bodies is optimized to improve its dynamic characteristics, its eigenfrequencies are typically maximized. While topology optimization formulations dealing with simultaneous design of a system of rigid and flexible bodies are available, studies on eigenvalue maximization of the system are rare. In particular, no work has solved for the case when the target frequency becomes one of the repeated eigenfrequencies. The problem involving repeated eigenfrequencies is solved in this study, and a topology optimization formulation and sensitivity analysis are presented. Further, several numerical case studies are considered to demonstrate the validity of the proposed formulation.
Keywords
Topology Optimization; System of Rigid and Flexible Bodies; Repeated Eigenvalues;
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