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structures of the joints and can be explained through them. Key words: friction stir welding; aluminum alloy; tensile test; rupture location; welding parameter CLC number: TG453.9  ......
Numerical simulation of triaxial compression test for brittle rock sample using a modified constitutive law considering degradation and dilation behaviorTAN Xin(谭鑫)1, 2, KONIETZKY H2, FRüHWIRT T2(1... tests were carried out on Eibenstock (Germany) granite samples. Based on a lab data fitting procedure, a consistent parameter set for the modified constitutive model was deduced and implemented......
time is 1 s. The forgetting factor, λ, for the parameter identification algorithm was set to be 0.999 5 in the hybrid pulse test so as to pursue a good balance between the parameter tacking capability... that the identified parameter trajectories in the transient power test are different from those in the hybrid pulse test. Therefore, there is a great necessity of calibrating the battery parameters on-line......
A new improved Alopex-based evolutionary algorithm and its application to parameter estimationSANG Zhi-xiang(桑志祥), LI Shao-jun(李绍军), DONG Yue-hua(董跃华)(Key Laboratory of Advanced Control... curves.Key words:alopex; evolutionary algorithm; alopex-based evolutionary algorithm; clone selection; parameter estimation......
Model-based parameter identification of comprehensive friction behaviors for giant forging pressLI Yi-bo(李毅波), PAN Qing(潘晴), HUANG Ming-hui (黄明辉) (State Key Laboratory of High Performance Complex... velocity.Key words:friction; forging press; modified model; LuGre model; parameter identification......
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Centrifugal model test and numerical simulation of vertical earth pressure on soft foundation box culvertZHANG Jun-hui(张军辉)1, 2, YAO Yong-sheng(姚永胜)1, ZHENG Jian-long(郑健龙)1, ZHANG Tao(张涛)3(1... the interaction of the soil-culvert-foundation system, both a centrifugal model test and a numerical simulation were conducted and the comparisons with the current methods to determine the load......
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J. Cent. South Univ. (2018) 25: 1746-1754 DOI: https://doi.org/10.1007/s11771-018-3865-x Parameter sensitivities analysis for classical flutter speed of a horizontal axis wind turbine blade GAO...-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: The parameter sensitivities affecting the flutter speed of the NREL (National Renewable Energy Laboratory) 5-MW baseline HAWT (horizontal......
compression deformation was studied in the strain rate range from 0.01 to 10 s-1 and the temperature range from 360 to 510 ℃ by isothermal compression test on a Gleeble-1500 thermal-mechanical simulator... temperature deformation can be represented by Z parameter in a hyperbolic sine function. The analytical expression of peak flow stress was fitted with the hot deformation activation energy of 260.6 kJ/mol......