工程结构物的抛物面方程回归计算
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The Regressive Adjustment of Paraboloid-Equation for Engineering Construction
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    摘要:

    工程结构物中的抛物面几何形体一般用于电磁波的发射或接收天线,其反射面需要精确符合设计的抛物面方程,辐射或接收器则需要精确地安装在抛物面的焦点上。因此抛物面工程结构物的施工安装、建成后的精度鉴定和变形监测需要用高精度的电子全站仪测定抛物面上许多离散点的三维坐标。据此,通过抛物面口的平面方程回归、平面的法向量计算、坐标变换、圆心拟合、坐标轴平移、抛物面方程回归等一系列运算,得到抛物面方程式和焦距,以满足对抛物面工程结构物的施工安装、精度鉴定和变形监测的要求。

    Abstract:

    Paraboloid figures in engineering construction are generally used for making transmitting or receiving antenna of electromagnetic waves,in which the reflective surface must be fitted accurately with the designed parabolic equation and the radiation device must be installed accurately on the focus of paraboloid. Therefore,it is necessary to measure a lot of separate points on the paraboloid using electronic total-station with high accuracy during the installation of engineering construction,the estimation of construction precision and the deformation observation after the construction. By which,the plane equation regress of the paraboloid opening,the calculation of the plane normal vector,the coordinates transformation,the circle center fitting,the movement of coordinates axis and the regress of paraboloid equation are practiced to get the paraboloid equation and its focus to satisfy the requirements of the engineering construction,eccuracy estimateion and deformation observation.

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程效军.工程结构物的抛物面方程回归计算[J].同济大学学报(自然科学版),2009,37(9):

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历史
  • 收稿日期:2008-05-26
  • 最后修改日期:2009-06-15
  • 录用日期:2008-10-21
  • 在线发布日期: 2010-01-07
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