Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Hong Qi Tian"'
Autor:
Hong-qi Tian
Publikováno v:
Transportation Safety and Environment. 1:1-21
High-speed railway aerodynamics is the key basic science for solving the bottleneck problem of high-speed railway development. This paper systematically summarizes the aerodynamic research relating to China’s high-speed railway network. Seven key r
Publikováno v:
Applied Mechanics and Materials. 846:565-570
Auxetic materials exhibit uncommon behaviour, i.e. they will shrink (expand) laterally under compression (tension). This novel feature has attracted intense research interest. However, most of previous works focus on auxetic behaviour in either compr
Publikováno v:
Journal of Fluids and Structures. 61:249-261
In this paper, the aerodynamic performance of a high speed train with moving ground and rotating wheels (MG&RW) conditions has been investigated using Computational Fluid Dynamic (CFD). The numerical simulations under the condition of stationary grou
Publikováno v:
Applied Energy. 157:183-194
Wind speed forecasting technology is important in the field of wind power. However, the wind speed signals are always nonlinear and non-stationary so that it is difficult to predict them accurately. Aims at this challenge, a new hybrid approach has b
Publikováno v:
Renewable Energy. 83:1066-1075
Wind speed high-precision prediction is one of the most important technical aspects to protect the safety of wind power utilization. In this study, two new hybrid methods [FEEMD-MEA-MLP/FEEMD-GA-MLP] are proposed for the wind speed accurate multi-ste
Publikováno v:
Energy Conversion and Management. 100:16-22
Realization of accurate wind speed forecasting is important to guarantee the safety of wind power utilization. In this paper, a new hybrid forecasting architecture is proposed to realize the wind speed accurate forecasting. In this architecture, four
Publikováno v:
Journal of Wind Engineering and Industrial Aerodynamics. 141:27-38
To protect running trains against the strong crosswind along Chinese Qinghai–Tibet railway, a strong wind warning system is developed. As one of the most important technologies of the developed system, a new short-term wind speed forecasting method
Publikováno v:
Energy Conversion and Management. 92:67-81
•Four hybrid algorithms are proposed for the wind speed decomposition.•Adaboost algorithm is adopted to provide a hybrid training framework.•MLP neural networks are built to do the forecasting computation.•Four important network training algo
Autor:
Hong-qi Tian
Publikováno v:
Journal of Central South University. 22:1146-1154
The aerodynamic performances of a passenger car and a box car with different heights of windbreak walls under strong wind were studied using the numerical simulations, and the changes of aerodynamic side force, lift force and overturning moment with
Publikováno v:
Journal of Central South University. 22:747-752
According to the analysis of the turbulent intensity level around the high-speed train, the maximum turbulent intensity ranges from 0.2 to 0.5 which belongs to high turbulent flow. The flow field distribution law was studied and eight types of flow r