Abstract:In order to obtain the maximum wall-attachment moment and decrease the friction force moment,an optimization design on fluidic component was made to ensure the normal running of the sprinkler.The driving and friction force moment of the sprinkler were analyzed.The driving moments of the sprinkler was arised from the jet offset impacting to the wall and the outlet cover board of the fluidic component.The friction resistance moment of the sprinkler was generated by the resistance between sections of hollow shaft,hollow shaft and its cover,and sealing set.The equation of center streamline of offset jet was deduced according to momentum equation.A formula to calculate the distance of attachment point and the angle of the attachment jet was also deduced.The relation between the maximum attaching moment and geometric parameters was obtained theoretically.The moment equation and rotating angle equation of fluidic sprinkler were also deduced.
李红;杨炎财;向清江. 隙控式全射流喷头运转动力学分析[J]. 排灌机械工程学报, 2008, 26(6): 58-62.
LI Hong, YANG Yan-cai, XIANG Qing-jiang. Dynamic analysis of fluidic sprinkler controlled by clearance. Journal of Drainage and Irrigation Machinery Engin, 2008, 26(6): 58-62.
[1] 李红,袁寿其,谢福琪.隙控式全射流喷头性能特点及与摇臂式喷头的比较研究[J].农业工程学报,2006,22(5):82-85[2] Gu R.Modeling two-dimentional turbulent offset jets[J].Journal of Hadraulic Engineering,1996,11:617-624[3] 李红,刘孟,陈超.全射流微喷头的研制[J].排灌机械,2007,25(1):38-41[4] 李世英.喷灌喷头理论与设计[M].北京:兵器工业出版社,1995[5] 朱兴业,袁寿其,李红.全射流喷头产业化开发中的问题及其改进[J].排灌机械,2006,24(6):24-27[6] 李红,谢福祺,郎涛.全射流喷头的研究现状及发展趋势[J].中国农村水利水电,2004(5):80-92[7] 朱兴业,袁寿其,李红.全射流喷头的原理及实验研究[J].排灌机械,2005,23(2):23-26[8] 平浚.射流理论基础及应用[M].北京:宇航出版社,1995[9] Triboix A,Marchal D.Stability analysis of the mechanism of jet attachment to walls[J].International Journal of Heat and Mass Transfer,2001,45:2769-2775[10] Deboer D W.Drop and energy characteristics of a rotating spray-plate sprinkler[J].Journal of Irrigation and Drainage Engineering,2002,6:137-146[11] Scibilia M F.Heat transfer in forced wall iet on a heated rough surface[J].Journal of Thermal Science,2000,9(1):85-92