科研之友
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摘要
The classical Mead-Markus sandwich beam consists of two stiff outer layers modeled under Euler-Bernoulli beam assumptions and a compliant "core layer" that is elastic in shear. In this article we consider a multilayer analog consisting of n = 2m+1 layers of alternating stiff and compliant beam layers (m + 1 stiff and m compliant) with viscous damping proportional to the shear in the compliant layers. We prove that the associated semigroupis analytic and describe the sector of analyticity. We also consider the problem of how to choose the damping parameters to optimize the angle of analyticity. We obtain ananalytical solution to the optimization problem.
- 出版日期2010-11
