摘要
根据风洞试验结果,分析即将投入运营的我国270km·h-1高速列车气动力性能,研究各种外形对其的空气阻力、升力和横向力的影响。研究结果表明,减小气动阻力方面单拱头形稍优于双拱头形;车体底部采用底罩结构其阻力、升力绝对值远小于采用裙板结构;在气动横向力方面,双拱头形稍微优于单拱头形,双拱头形列车横向力作用位置低于单拱头形列车,其横向稳定性较好。根据研究结果,确定出与列车运行速度相匹配满足列车空气动力学性能要求的列车外形。
Based on the wind tunnel test results, the paper analyzes the aerodynamic performance the 270 km·h-1 highspeed train that will be put into operating soon in China and the effects of the air resistance, lift and lateral force of different shapes. The research shows that the train with single arch nose is slightly better than that with the double archnose in decreasing the aerodynamic resistance; much less absolute value of resistance and lift force on the train with bottom plate than that with skirt plate. On the contrary, the train with the double arch nose is slightly better than that with the single nose in decreasing aerodynamic lateral force. The position that the lateral force acts on the double arch nose train is lower than that on the single arch nose train; thus the former has better lateral stability. Finally the train profile that fits running speed and meet aerodynamic performance requirements is worked out.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
2003年第2期14-18,共5页
China Railway Science
基金
铁道部科技研究开发计划项目(2001J001 D)
