真空平板玻璃风载荷数值分析与试验研究  

NUMERICAL CALCULATION AND EXPERIMENTAL RESEARCH ON WIND LOAD OF VACUUM PLATE GLASS

作　　者：缪宏[1] 奚小波[1] 张瑞宏[1] 左敦稳[2] 王洪亮[1] 

机构地区：[1]扬州大学机械工程学院,扬州225000 [2]南京航空航天大学机电学院,南京210016

出　　处：《太阳能学报》2013年第11期1888-1894,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51172199);江苏省自然科学基金(BK2009039);江苏省产学研联合创新资金计划(SBY201120191);江苏省科技支撑(社会发展)项目(BE2010700);江苏省普通高校研究生科研创新计划(CXLX11_1002)

摘　　要：采用弹性力学、板壳理论与数学微分法,建立真空平板玻璃在风载荷下表面的挠度变形和应力分布模型,通过对真空平板玻璃风载荷特性的试验研究,得到风载荷下真空平板玻璃在封边处、支撑处与支撑柱之间的连线中点处重要部位的应力分布,分析真空平板玻璃表面挠度变形和应力分布的规律,并验证理论分析方法的有效性与合理性,为真空平板玻璃测试标准中环境参数的制定、使用寿命预测以及结构改进设计提供重要依据。试验结果表明,随着风载荷的增加,真空平板玻璃表面各测点挠度变形和应力呈增加的趋势。在不同风载荷条件下,最大应力发生在距真空平板玻璃中心处最近的支撑处,最大挠度变形在斜线方向两支撑柱的中点,最大应力表现为拉应力最大,而最小应力与最小挠度变形发生在距真空平板玻璃中心处最远的斜向两支撑柱中点,最小应力表现为压应力最大。By using elasticity mechanics, plate theory and differential method, the models of deflection and stress distribution of the vacuum plate glazing surface under wind load were built. The stress distribution of vital areas such as the sealed sides, the shores and the middle points between two adjacent shores was studied through experiments, and analyzed the deflection and stress distribution of the vacuum plate glazing on the surface. And the reliability of calculation results was verified. It provided important basic for applied monitoring, service life prediction and structural improving design of the vacuum plate glazing The experimental results showed the deformation and the stress of the measured points on the surface of the vacuum plate glazing decreased with the increase of the wind load. The maximal stress of the vacuum plate of the distance to the center of the vacuum plate glazing glazing occurred in the closest supporting point and the maximal deformation occurred in the midpoint of two shores in the sloping line direction, and the maximal stress showed the maximal tensile stress. The minimum stress and deformation located at the farthest midpoint of two shores in the sloping line direction of the distance to the center of the vacuum plate glazing, and the minimum stress showed the maximal pressure stress.

关 键 词：真空平板玻璃 风载荷 应力 变形 

分 类 号：TQ171.727[化学工程—玻璃工业]