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arXiv 2102.02521math.OC
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含惯性的塑性最优控制

Optimal Control of Plasticity with Inertia

Stephan Walther

AI总结:

本文针对含惯性项的小应变弹塑性系统,通过Yosida逼近与光滑化处理演化变分不等式,研究以体积力控制位移场和塑性应变的最优控制问题,并推导最优性条件。

摘要:

本文研究由小应变下具有线性运动硬化的弹塑性方程及惯性项所支配的最优控制问题。目标是通过控制体积力来优化位移场和塑性应变。利用文献[10]中的思想,将状态方程转化为涉及某个极大单调算子的演化变分不等式(EVI)。随后采用文献[27]的结果对EVI进行分析。通过对极大单调算子进行Yosida逼近获得正则化,进一步对该逼近进行光滑化,以推导光滑化最优控制问题的最优性条件。

英文摘要:

The paper is concerned with an optimal control problem governed by the equations of elasto plasticity with linear kinematic hardening and the inertia term at small strain. The objective is to optimize the displacement field and plastic strain by controlling volume forces. The idea given in [10] is used to transform the state equation into an evolution variational inequality (EVI) involving a certain maximal monotone operator. Results from [27] are then used to analyze the EVI. A regularization is obtained via the Yosida approximation of the maximal monotone operator, this approximation is smoothed further to derive optimality conditions for the smoothed optimal control problem.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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