spherical aggregate 中文意思是什麼
spherical aggregate
解釋
球狀集合體-
Based on the extended boundary condition method and addition theorem of vector spherical functions, this paper study the light scattering problems of aggregate spheres from the angles of a single sphere, two - sphere system and multi - spheres system
本文基於擴展邊界條件法及矢量球諧函數的加法定理，通過嚴格求解maxwell方程所得到的散射傳輸矩陣，對與入射波波長可比擬的群聚球形粒子的散射問題進行了研究。 -
Further, the codes of the meso - scale structured finite element grids of concrete are developed. ( 2 ) the fortran program to generate random convex polyhedron aggregate based on the topology of spherical aggregates and the codes of the meso - scale structured finite element grids of concrete are developed
（ 2 ）為了實現骨料模型和其細觀有限元網格的可視化，本文還研究了利用現有商業軟體生成多面體隨機骨料的可視化混合編程的方法。 -
The details as followed : 1. summarize and analyze the methods of meso - mechanics of concrete and researching documents on the theory of damage of concrete ; 2. based on the packing approach of spherical aggregates, a method generating polygon aggregate model of concrete was presented, by which the codes of aggregate packing and meso - meshes of finite element plotting were designed taking into account the actual aggregate content, grading, and aggregate configuration
具體工作由以下幾個方面: 1 .分析總結了混凝土細觀力學分析方法和現有混凝土材料損傷破壞理論的研究成果; 2 .在研究圓形骨料投放方法的基礎上，提出了一種多邊形隨機骨料投放方法，並編制了凸多邊形模型生成程序和細觀有限元剖分程序。這種生成方法所得到的凸多邊形骨料模型既反映了骨料的實際形態又維持骨料的實際級配和含量。 -
A good model of the full - grade aggregate concrete with high aggregate content is precondition to successfully execute concrete meso - mechanical simulation, so that the main work in the dissertation is focused on the following study concerning the random aggregate model of dam fully - graded concrete : ( 1 ) based on the topology of spherical aggregates, an algorithm of the random convex polyhedron aggregate model was presented considering the actual aggregate content, grading, and aggregate shape, and corresponding fortran program was developed to generate random convex polyhedron aggregate
針對全級配大壩混凝土的實際骨料含量和骨料形態，本文做了以下主要工作: （ 1 ）在一種高效率生成的隨機球骨料模型的基礎上，形成隨機凸多面體骨料模型，同時研究了細觀單元屬性判別方法，編制了對含有凸多面體骨料的細觀區域進行結構性有限元網格剖分程序。本文給出的三維隨機骨料模型演算法不但考慮了混凝土的骨料的實際級配和含量，而且計及了骨料的實際形態。
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