中国农业大学学报2024，Vol.29Issue(7)：161-169,9.DOI:10.11841/j.issn.1007-4333.2024.07.15
日光温室骨架合理曲线的一种数值化表达方法
A numerical expression method of solar greenhouse skeleton reasonable curve
摘要
Abstract
The skeleton curve form of solar greenhouse directly affects the front roof lighting and mechanical bearing performance.In order to study and design a reasonable skeleton curve form of solar greenhouse,based on the design characteristics and application situation of the existing skeleton,the numerical construction and expression methods of the reasonable curve of the solar greenhouse skeleton were studied.When the position of the ridge point,the lowest working height,the slope at the front roof ridge,and the slope at the foot are determined,this method can directly provide a numerical expression for the skeleton curve,and qualified skeleton curve forms can be screened out through regulatory requirements.A double parabolic skeleton curve was proposed in this study,and three cities,Beijing,Shenyang and Yinchuan,were selected to simulate the lighting performance of solar greenhouses with five skeleton curve forms,which were parabolic,elliptical,double parabolic,power function and double circle.The results showed that:1)The maximum difference between the cumulative solar radiation on the winter solstice day under five different skeleton curve forms was 6.31％,and the double parabola as the skeleton curve form was reliable in terms of lighting performance;2)When the current horizontal projection of the roof is 6 to 14 m and the minimum working height is 1 to 1.8 m,a double parabolic curve that meets both the regulatory requirements and the actual engineering situation can be constructed.关键词
日光温室/骨架曲线/数值化表达/设计方法Key words
solar greenhouse/skeleton curve/numerical expression/design method分类
农业科技引用本文复制引用
齐飞,何芬,赵云云,侯永,丁小明..日光温室骨架合理曲线的一种数值化表达方法[J].中国农业大学学报,2024,29(7):161-169,9.基金项目
河北省重点研发计划资助项目(22327214D) （22327214D）
农业农村部规划设计研究院自主研发项目(SP202101) （SP202101）
