摘要
旋转式喷头的水力性能主要是由射程、流量、工作压力、喷灌强度、喷灌均匀度、水滴打击强度等6项指标综合决定,应用模糊综合评判的数学模型并结合试验数据评价国内外摇臂式喷头及全射流喷头的水力性能,结果表明隙控式全射流喷头比摇臂式喷头有更优越的水力性能。应用模糊数学方法时,权重分配会对评价结果产生影响,应根据实际需要选择最优的权重分配。
The hydraulic performance of revolving sprinkler lies on the parameters such as pattern radius, flow rate, application rate and uniformity coefficient of sprinkler irrigation, intensity of dripping striking and so on. The mathematical model of fuzzy comprehensive evaluation is applied and the test data are used to evaluate the hydraulic performance of impact sprinklers and the fluidic sprinklers at home and abroad. Results show that fluidic sprinkler controlled by clearance has better hydraulic performances than impact sprinklers. When the fuzzy comprehensive evaluation is used, weighing distribution will affect evaluation results in some cases, thus the optimum weighing distribution should be chosen according to actual requirements.
出处
《中国农村水利水电》
北大核心
2008年第7期29-31,共3页
China Rural Water and Hydropower
基金
国家高技术研究发展计划("863"计划)项目(2006-AA100211)
国家农业科技成果转化基金"新型射流式节水灌溉设备的完善与中试"(2006GB2C100098)
江苏省农业攻关项目"丘陵地区经济作物节水关键技术及设备研制"(BE2005316)
关键词
模糊综合评判
全射流喷头
水力性能评价
权重分配
fuzzy comprehensive evaluation
fluidic sprinkler
hydraulic performance evaluation
weighing distribution
