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4篇 您的检索式:作者名="ZHENG FuGang"
    题名 作者 年代 出处 被引量
1A plastic damage model for concrete structure cracks with two damage variables显示文摘Based on the concepts of continuum damage theory,a new plastic damage model for concrete crack failure is developed through studying the basic damage mechanics.Two damage variables,tensile damage variable for tensile damage and shear damage variable for compressive damage,are adopted to represent the influence of microscopic damage on material macromechanics properties under tensile and compressive loadings.The yield criteria and flow rule determining the plasticity of concrete are established in the effective stress space,which is convenient to decouple the damage process from the plastic process and calibrate material parameters with experimental results.Meanwhile,the plastic part of the proposed model can be implemented by back-Euler implicit algorithm,and the damage part is explicit.Consequently,there exist robust algorithms for integrating the constitutive relations using finite element method.Comparison with several experimental results shows that the model is capable of simulating the nonlinear performance of concrete under multiaxial stress state and can be applied to practical concrete structures.ZHENG FuGang WU ZhongRu GU ChongShi BAO TengFei HU Jiang 2012Science China(Technological Sciences)2012,55,11:6
2Multi-Objective Structural Optimization of Wind Turbine Tower Using Nondominated Sorting Genetic Algorithm显示文摘A multi-objective optimization process for wind turbine steel towers is described in present work.The objective functions are tower top deformation and mass.The tower's height,radius and thickness are considered as design variables.The mathematical relationships between objective functions and variables were predicted by adopting a response surface methodology(RSM).Furthermore,the multi-objective non-dominated sorting genetic algorithm-II(NSGA-II)is adopted to optimize the tower structure to achieve accurate results with the minimum top deformation and total mass.A case study on a 2MW wind turbine tower optimization is given,which computes the desired tower structure parameters.The results are compared with the original tower:a reduction of tower top deformation reduction by about 16.5%and a reduction of a mass by about 1.5%could be achieved for such an optimization process.Yuqiao Zheng Lu Zhang Fugang Dong Bo Dong 2020Journal of Beijing Institute of Technology2020,29,3:1
3A New Approach for Structural Optimization with Application to Wind Turbine Tower显示文摘This work takes the bionic bamboo tower(BBT)of 2 MW wind turbine as the target,and the nondominated sorting genetic algorithm(NSGA-II)is utilized to optimize its structural parameters.Specifically,the objective functions are deformation and mass.Based on the correlation analysis,the target optimization parameters were determined.Furthermore,the Kriging model of the BBT was established through the Latin Hypercube SamplingDesign(LHSD).Finally,the BBT structure is optimized withmultiple objectives under the constraints of strength,natural frequency,and size.The comparison shows that the optimized BBT has an advantage in the Design Load Case(DLC).This advantage is reflected in the fact that the overall stability of the BBT has increased by 2.45%,while the displacement of the BBT has decreased by 0.77%.In addition,the mass of the tower is decreased by 1.49%.Correspondingly,the steel consumption of each BBT will be reduced by 2789 Kg.This work provides a scientific basis for the structural design of the tower in service.Fugang Dong Yuqiao Zheng Hao Li Zhengwen He 2022Energy Engineering2022,119,3:0
4A novel strategy for identifying biomarker in serum of patient with COVID-19 using immune complex显示文摘Dear Editor,COVID-19(Coronavirus Disease 2019)is a disease caused by the single-stranded sense RNA virus SARS-CoV-2(severe acute respiratory syndrome coronavirus 2),which has caused a global public health crisis.1 However,so far no effective serum marker has been found as a biomarker for COVID-19 diagnosis,except that viral nucleic acid detection is an effective evidence of SARS-CoV-2 infection.Fugang Duan Yifan Wang Taoyu Chen Zhu Zhu Meng Yu Hui Dai Shangen Zheng Yinying Lu Tingting Li Xiaoyan Qiu 2022Signal Transduction and Targeted Therapy2022,7,3:0
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