摘要
在消防灭火中,消防水炮的俯仰角、风速、射流初速度等因素的不确定性对消防水炮射流轨迹影响显著,使得理论靶点与实际靶点产生偏差.采用区间算法对射流轨迹不确定性参数进行区间分析,进而确定靶点的变化范围.结果表明,射流初速度对消防水炮射流影响较大,这对消防水炮设计以及其性能提高具有重要意义.
In the process of fire extinguishing,the uncertainty of pitch angle,wind velocity,initial jet velocity and other factors have significant influences on the jet trajectory,which resulting in the deviation between the theoretical target and the actual target.Interval algorithm was adopted to analyze the uncertainty parameters of jet trajectory,and the range of target variation was determined.The result shows that the intial jet velocity has a great influence on the jet of fire water cannon,which can provide great significance for the design of fire water cannon and the improvement of its performance.
作者
瞿洋
刘新田
张明辉
QU Yang;LIU Xintian;ZHANG Minghui(School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China)
出处
《上海工程技术大学学报》
CAS
2020年第1期50-53,共4页
Journal of Shanghai University of Engineering Science
关键词
不确定性
区间分析
数值仿真
靶点
uncertainty
interval analysis
numerical simulation
target
