确定冰动强度的随机方法

Q3 Physics and Astronomy

Cybernetics and Physics Pub Date : 2021-11-30 DOI:10.35470/2226-4116-2021-10-3-122-126

N. Granichin, G. Volkov, Y. Petrov, M. Volkova

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引用次数: 1

摘要

在孵育时间法的框架内，应用随机符号摄动和法(SPS)来评估冰的动强度。实验数据[Carney et al.， 2006;Wu and Prakash, 2015;分析Saletti et al.， 2019]，以估计冰的强度参数并描述观测到的应变率敏感性曲线。与临界应力参数的显著依赖性相比，建立了孵育时间值与冰温的独立性。得到的散裂冰的置信区间与实验观测到的散裂吻合较好。

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Randomized approach to determine dynamic strength of ice

The randomized method of Sign-Perturbed Sums (SPS) is applied within the framework of the incubation time approach to evaluate the dynamic strength of ice. The experimental data of [Carney et al., 2006; Wu and Prakash, 2015; Saletti et al., 2019] is analysed in order to estimate strength parameters of ice and describe the observed strain-rate sensitivity curves. The independence of incubation time value on the ice temperature is established in contrast with the significant dependency of the critical stress parameter. The obtained confidence interval of the spalled ice is in good correspondence with the scatter observed experimentally.

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来源期刊

Cybernetics and Physics Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： The scope of the journal includes: -Nonlinear dynamics and control -Complexity and self-organization -Control of oscillations -Control of chaos and bifurcations -Control in thermodynamics -Control of flows and turbulence -Information Physics -Cyber-physical systems -Modeling and identification of physical systems -Quantum information and control -Analysis and control of complex networks -Synchronization of systems and networks -Control of mechanical and micromechanical systems -Dynamics and control of plasma, beams, lasers, nanostructures -Applications of cybernetic methods in chemistry, biology, other natural sciences The papers in cybernetics with physical flavor as well as the papers in physics with cybernetic flavor are welcome. Cybernetics is assumed to include, in addition to control, such areas as estimation, filtering, optimization, identification, information theory, pattern recognition and other related areas.