企业技术开发(学术版)
企業技術開髮(學術版)
기업기술개발(학술판)
TECHNOLOGICAL DEVELOPMENT OF ENTERPRISE
2013年
11期
36-37,51
,共3页
高速列车%气密性%瞬变压力%数值模拟
高速列車%氣密性%瞬變壓力%數值模擬
고속열차%기밀성%순변압력%수치모의
high-speed trains%tightness%transient pressure%numerical simulation
车外压力瞬变传入车厢时将会严重影响旅客乘坐舒适度,国际上将这一问题归结为车辆气密性问题。随着列车速度的提高,研究高速列车气密性问题与车内外压力传递规律具有重要意义。文章通过将这一复杂物理现象建立数学模型,并在建立的数学模型的基础之上,利用FORTRAN77编写程序,然后,通过车外压力求出车内压力,将车内压力变化的规律绘出曲线,并指出影响车辆气密性的主要因素。
車外壓力瞬變傳入車廂時將會嚴重影響旅客乘坐舒適度,國際上將這一問題歸結為車輛氣密性問題。隨著列車速度的提高,研究高速列車氣密性問題與車內外壓力傳遞規律具有重要意義。文章通過將這一複雜物理現象建立數學模型,併在建立的數學模型的基礎之上,利用FORTRAN77編寫程序,然後,通過車外壓力求齣車內壓力,將車內壓力變化的規律繪齣麯線,併指齣影響車輛氣密性的主要因素。
차외압력순변전입차상시장회엄중영향여객승좌서괄도,국제상장저일문제귀결위차량기밀성문제。수착열차속도적제고,연구고속열차기밀성문제여차내외압력전체규률구유중요의의。문장통과장저일복잡물리현상건립수학모형,병재건립적수학모형적기출지상,이용FORTRAN77편사정서,연후,통과차외압력구출차내압력,장차내압력변화적규률회출곡선,병지출영향차량기밀성적주요인소。
Passengers' riding comfort will be seriously effected when the outside pressure changes instantly and transfers into carriages. Internationally,this issue is boiled down to tightness problem of vehicles.With the increase of train speed,it is of great importance to study the tightness and the transfer rule of pressure in and out of the carriages.Based on the phenomenon,a mathematical mode is es-tablished in this paper,and then,program is writed by FORTRAN77 and pressure changing curve is drew.At last,main factor affecting the tightness of carriages is also put forward.