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shell structure (原子、原子核的)殼層構造。

shell work

During the time of erp ' s implement and maintenance , the author realized the defects of traditional erp system such as complicated and hard - shelled structure , hard to do bpr , depended on organizing model and so on 作者在erp實施和維護的實踐個深刻體會到傳統erp系統存在二次開發、調試和維護費用較高,系統結構復雜且較僵硬、預配置依賴于組織模型、業務過程重組被動等諸多缺點。

The shell is divided into orthogonal or oblique crossing girder systems , which make up a space rigid frame structure , then an analysis is made of the endogen force of the shell structure based on the curved lever space rigid frame structure 該方法通過將殼體結構離散成相互垂直或斜交的曲桿梁系組成的空間剛架結構,進而分析曲桿空間剛架結構的內力,達到殼體內力分析的目的。

Thirdly , while analyzing composite materials shell structure , the structural pre - flection nonlinear equation and engenfunction for resolving flection load are separately simplified in the axis symmetry shell ' s flection finite element analysis 本文在分析復合材料殼體結構時,軸對稱殼體的屈曲有限元分析對結構前屈曲非線性方程及屈曲載荷求解中的特征方程分別作了簡化。

The method of curved lever space rigid frame , a new and practicable numerical method , is based on the utility of reinforced concrete shell structure in practical project and on endogen force analysis of shell structure as this paper extracts 摘要從鋼筋混凝土殼體結構的實際應用出發,對殼體結構內力分析提出了一種新型實用的數值分析方法曲桿空間剛架法。

In this paper , emulsion polymerization as a way to prepare unorganic - polymer complex nanoparticles with core - shell structure is introduced . meanwhile , the formation mechanism and characterization technique are reviewed 摘要簡要介紹了一種制備核殼式無機高分子納米復合粒子的方法乳液聚合,概述了核殼式無機高分子納米復合粒子的形成機理及其表征技術。

Abstract : in this paper , the static shape control of the flexible intelligent thin - shell structure is derived by the intelligent thin - shell element of ref . 5 . finally , a numerical example of a paraboloid antenna is given 文摘:應用文獻5給出的三維智能薄殼單元研究了柔性薄殼智能結構的靜態形狀控制問題,給出了拋物面形天線的靜態形狀控制算例。

Finally , the use of visualization technology in every aspect of the whole course of optimal design is expounded , and the computer aided design system of composite materials shell structure - cmfcad system is set up in this paper 闡述了可視化技術在優化設計整個過程中各個方面的應用。建立了復合材料殼體結構的計算機輔助設計系統? cmfcad系統。

Considering cavitation and the coupling of solid and fluid , the structure responses caused by combination of underwater explosion and hydrostatic pressure are simulated through modeling shell structure and its outer water 通過對殼體結構及外部水域進行建模,并考慮流固耦合及空泡因素,模擬出結構受水下爆炸載荷及靜水壓力聯合作用下的響應。

The main research object in this dissertation is to study and predict the deformation of the adaptive shell structure , which the sma are integrated into , which belongs to the deformable adaptive structures in the applied research 本文主要預測形狀記憶合金驅動曲殼自適應結構的變形,屬于形狀變化智能材料結構在應用方面的研究。

Based on msc / nastran software , by using of pcl language ( patran command language ) , new software of optimum design module was secondly developed for sectional optimization of plate and shell structures 在msc / nastran基礎上,利用msc / patran提供的pcl語言,對板殼結構的截面優化的優化模塊進行了二次開發。

Numerical example reveals that the new method can realize the multi - location damage detection of the plate and shell structure effectively , and at the same time simplify the process of the damage detection 算例表明該方法不僅可以準確地完成板殼結構的多位置損傷診斷,并且可以大大簡化整個損傷診斷的過程。

This study aims to establish an experimental facility for imperfection measurement employing a laser displacement meter , which can provide fast , accurate and non - contact measurement for shell structures 本研究旨在開發一套基于激光測距儀的初始缺陷測量系統,以實現對殼體結構的決速、精確、非接觸的側量。

Now the studies of cluster science involve many fields such as magic numbers and shell structures , optics response , cluster - solid interactions , change of phase etc . the discovery of co had made a sensation in science 目前團簇的研究涉及很多方面,如幻數和殼結構、光學響應、碰撞和反應、結構相變等。

Spherical reticulated shell is of great prospect because of its economy , large span . in the recent ten years , reticulated shell structure develops very quickly 球面網殼結構由于受力合理、用料經濟、造型美觀,能覆蓋較大空間,近十年來發展速度驚人,其發展前景廣闊,是一種理想的空間結構形式。

On the basis of review of development of grid structure and actuality and development of analysis of nonlinearity , nonlinearity of the double - layer reticulated shell structure is studied 本文在回顧網格結構發展和網殼結構非線性分析的現狀與發展的基礎上,進行了雙層球面網殼結構的非線性研究。

The common hypotheses of the shell structure aren ' t alterative in the new finite element method , and it finishes the solution through the integral of the different laminas 新單元的計算方法不改變殼體結構的一般假設條件,利用厚度方向分段積分來完成問題的求解,并對層合截錐殼進行計算。

A corresponding program is developed . nonlinear load - displacement curve in complete - process analysis of a double - layer reticulated shell structure is traced out by the program 研制了相應有限元程序,對網殼結構進行非線性的荷載?位移全過程跟蹤分析,得到網殼結構荷載?位移全過程曲線。

Tem images revealed that a carbon encapsulated core / shell structure was formed in the composites , which could ensure good dispersion of carbon nanoparticles within pmma matrix 透射電鏡結果表明納米碳可與聚甲基丙烯酸甲酯形成核殼結構,使得納米碳均勻分散于聚合物基體中。

Based on the element of shell with a single layer , a new element with high order to solve the laminated shell structure and its stiff - matrix are constructed 在單層殼體單元的基礎上,提出用于分析層合殼體結構的一種新的高階單元8結點殼體曲面單元,并推導該單元的剛度矩陣。