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(19)中华人民共和国国家知识产权局(12)发明专利申请(10)申请公布号CN107757871A(43)申请公布日2018.03.06(21)申请号201710852194.1(22)申请日2017.09.20(71)申请人中国水利水电科学研究院地址100038北京市海淀区复兴路甲一号申请人宁波梅山保税港区景龙投资管理合伙企业(有限合伙)(72)发明人宋文龙杜绵银吕娟付媛媛张昆屈艳萍谭亚男(74)专利代理机构北京慧泉知识产权代理有限公司11232代理人李娜(51)Int.Cl.B64C3/14(2006.01)权利要求书2页说明书6页附图2页(54)发明名称一种轻小型固定翼无人机用翼型(57)摘要本发明涉及一种轻小型固定翼无人机用翼型,翼型相对厚度为12%,位于弦长28.8%位置,最大弯度为3.5%,位于弦长53.8%位置,100mm翼型后缘厚度为0.4mm,100mm翼型前缘半径为1.21mm。本发明一种轻小型固定翼无人机用翼型,其优点是该LRF1235翼型不仅具有良好的升阻特性和失速特性,而且翼型具有较大的相对厚度和后缘厚度,表明本发明具有良好的气动特性和工程性,具有满足轻小型固定翼无人机对高升力、高升阻比、高失速攻角和最大升力系数、大相对厚度的应用需求特点。CN107757871ACN107757871A权利要求书1/2页1.一种轻小型固定翼无人机用翼型,其特征在于:该翼型相对厚度为12%,位于弦长28.8%位置,最大弯度为3.5%,位于弦长53.8%位置,100mm翼型后缘厚度为0.4mm,100mm翼型前缘半径为1.21mm。2.根据权利要求1所述的一种轻小型固定翼无人机用翼型,其特征在于:所述的翼型剖面参数如下:两组x、y值即x1、y1及x2、y2分别代表二维坐标系下翼型上表面和下表面离散点坐标值;其中,翼型上表面x1、y1的取值如下:(1.00000,0.00200)、(0.99042,0.00449)、(0.96898,0.00974)、(0.93378,0.01751)、(0.91482,0.02134)、(0.89529,0.02511)、(0.87554,0.02882)、(0.85563,0.03249)、(0.83559,0.03613)、(0.81545,0.03975)、(0.79542,0.04330)、(0.77537,0.04680)、(0.75527,0.05026)、(0.73531,0.05364)、(0.71535,0.05695)、(0.69547,0.06017)、(0.67566,0.06328)、(0.65593,0.06626)、(0.63623,0.06911)、(0.61660,0.07181)、(0.59702,0.07435)、(0.57749,0.07672)、(0.55793,0.07893)、(0.53842,0.08096)、(0.51904,0.08279)、(0.49950,0.08445)、(0.48011,0.08590)、(0.46075,0.08715)、(0.44138,0.08820)、(0.42170,0.08905)、(0.40243,0.08967)、(0.38340,0.09007)、(0.36200,0.09025)、(0.34540,0.09019)、(0.32570,0.08989)、(0.30631,0.08932)、(0.28780,0.08850)、(0.26880,0.08737)、(0.25013,0.08597)、(0.23131,0.08425)、(0.21298,0.08225)、(0.19465,0.07990)、(0.17660,0.07722)、(0.15874,0.07418)、(0.14120,0.07078)、(0.12406,0.06702)、(0.10743,0.06290)、(0.09154,0.05845)、(0.07661,0.05373)、(0.06303,0.04888)、(0.05113,0.04407)、(0.04107,0.03944)、(0.03270,0.03504)、(0.02588,0.03095)、(0.02035,0.02716)、(0.01582,0.02362)、(0.01212,0.02034)、(0.00908,0.01727)、(0.00659,0.01441)、(0.00454,0.01172)、(0.00288,0.00917)、(0.00158,0.00671)、(0.00069,0.00440)、(0.00015,0.00207);其中,翼型下表面x2、y2的取值如下:(0.00000,0.00000)、(0.00025,-0.00234)、(0.0