期刊
JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS
卷 134, 期 2, 页码 339-352出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10957-007-9260-7
关键词
optimal design; wave propagation; classical solutions
We consider an optimal design problem in wave propagation proposed in Sigmund and Jensen (Roy. Soc. Lond. Philos. Trans. Ser. A 361:1001-1019, 2003) in the one-dimensional situation: Given two materials at our disposal with different elastic Young modulus and different density, the problem consists of finding the best distributions of the two initial materials in a rod in order to minimize the vibration energy in the structure under periodic loading of driving frequency Omega. We comment on relaxation and optimality conditions, and perform numerical simulations of the optimal configurations. We prove also the existence of classical solutions in certain cases.
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