surface error meaning in English
表面误差
Examples
- Moreover , aspherical surface error in sagittal plane was found , and bended beam ’ s radius r , position s of concentrated load p and length l of arc which were suited for aspherical figure accuracy of both tangential plane and sagittal plane were given
此外,本文对有限元法分析过程也进行了简要说明,并用有限元软件patran / nastran对上述曲梁的计算进行了复核。 - After online debugging and experimenting , the surface error of 0 . 35 m p - v is achieved in short polishing cycle time . this optical cad / cam integrating manufacture provides a practical approach to mass production and popularization of aspheric optics
最后在光学加工设备上联机调试，试验非球面的制造，在较短的加工周期中获得面形pv值达0 . 35 m的高精度非球面表面。 - This algorithm uses iterative contractions of vertex pairs , to simplify models and maintains surfaces error approximations using quadric matrices . we have applied these two methods to simplify models in our system and have done some improved work on the first one
后者立足于视差效果，用少量带有纹理和透明的平面来表示原模型，这些平面是相互独立的，不再包含网格的拓扑信息，模型的几何细节和侧影轮廓线也都是利用纹理和透明保存下来的。 - The reasons to choose aspherical grads method as the principle were presented . the two spheres which were gotten from aspherical grads method and least square method were analyzed by fem software , and the deviation with the wanted aspherical surface and the maximum stress were compared under same confined condition , same loading position and loading points . also , we proved that the sphere gotten from aspherical grads method has less surface error and stress after deformation
用有限元软件分别对非球面变化梯度法和最小二乘法所获球面进行了分析,比较两种球面在相同边界条件、相同加载位置和个数下,与所需非球面的面形误差和应力的大小,证明了用非球面变化梯度法所获得的球面在变形后,面形精度更高,应力更小。 - The mathematic model of the ultra - thin spherical mirror is to be treated as elastic thin shell . then the predigested model , i . e . , bended beam , used in qualitative analysis was proposed , and its deflection and stress formulas under the freely supported condition were set up . based on an off - axis aspherical primary mirror , the relationship of aspherical surface error ( rms ) in tangential plane with bended beam ’ s radius r , position s of concentrated load p and geometry length l of arc was analyzed
根据这一设想,本文建立了超薄镜的数学模型?薄壳,并提出了强制力作用下超薄镜的简化模型?曲梁,推导了曲梁在简支情况下受力变形的挠度公式,并结合一个实例,计算出曲梁变形后与所需非球面的面形残差( rms )在子午方向与曲梁弧长l 、曲梁半径r及集中力位置s的关系及满足面形精度的r和s范围,分析了弧矢方向的rms ,得出了同时满足子午和弧矢方向面形要求的l 、 r和p 。