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and FEM simulation. Key words: nickel aluminum bronze; constitutive parameter; Johnson-Cook model; identification method 1 Introduction As a copper-based alloy, nickel aluminum bronze (NAB) presents...Trans. Nonferrous Met. Soc. China 26(2016) 1105-1111 Identification of constitutive model parameters for nickel aluminum bronze in machining Zhong-tao FU1, Wen-yu YANG1, Si-qi ZENG2, Bu-peng GUO1......
noise resistance, so it can be widely used in vibrating detection. Key words: continuous exponential window transformation; modal parameter; modal identification 振动模态分析是结构健康监测领域的关键理论与技术,模态参数的提取精度直接影响到结构健..., 26(5): 167-171. [8] Juang J N, Pappa R S. An eigensystem realization algorithm (ERA) for model parameter identification and model reduction [J]. J Guidance, Control, and Dynamics, 1985, 8(5): 620-627......
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information as the identification parameter possessed a lot of theoretical and practical meanings. 4 Results and discussion 4.1 Acquisition of time–frequency entropy The time–frequency distribution... J. Cent. South Univ. (2018) 25: 1690-1700 DOI: https://doi.org/10.1007/s11771-018-3860-2 Application of time–frequency entropy from wake oscillation to gas–liquid flow pattern identification HUANG......
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of 0.0095827 with 106 iterative steps and time of 3 s less than Sobel algorithm with 146 steps and 5 s. Finally, an enhanced identification rate of 10% for the defects is also confirmed after the Sobel algorithm is improved. Key words: Sobel algorithm; surface defect; heavy rail; experimental platform; identification 1 Introduction As an important research subject of nondestructive detections, real-time......
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J. Cent. South Univ. (2016) 23: 1390-1398 DOI: 10.1007/s11771-016-3191-0 Integrated search technique for parameter determination of SVM for speech recognition Teena Mittal1, R. K. Sharma2 1... parameter selection is a vital issue for it. To improve the learning ability of SVM, a method for searching the optimal parameters based on integration of predator prey optimization (PPO) and Hooke-Jeeves......
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