numerical aspects 中文意思是什麼

In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future

本文結合重慶市大渡口區「三木花園」開發建設項目，從地下空間靜力結構穩定性分析角度出發，針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米，高7 . 5米的地下隧道這一具體工程情況，採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的應力與位移演變規律進行了有限元數值分析計算，探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響，通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於軌道交通的地下隧道狀態等三種不同狀態以及4個水平剖線和4個垂直剖線等不同情況，從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律： （ 1 ）在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖（ ux 、 uy ）以及應力等值線色譜圖（ _ 1 、 _ 2 、 _ （ xy ） ）等； （ 2 ）相同狀態下不同水平與垂直剖線的應力_ 1 、 _ 2和_ （ xy ）對比分佈曲線； （ 3 ）不同狀態下相同水平或垂直剖線的應力_ 1 、 _ 2和_ （ xy ）的對比分佈曲線等，為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。

This thesis mainly deals with the following two aspects of the train control problem : adjusting parameters and implementing numerical calculations

本文主要考慮了列車控制問題的如下兩個方面：調整參數與執行數值計算。

The numerical algorithm of solving the adjoint equations for different design cases have been developed by using finite volume methodology which is usually used to solve the flow governed equation. it includes the some important aspects, such as flux formulation, wall and far - field boundary treatment methodology, dissipative term formulation, etc. after the solution of the adjoint equations is obtained, the derivatives of the cost function with respect to all the design variables can be evaluated with the same operation. this can yields a significant saving over the other gradient - based techniques when there are many design variables

（ 3 ）進行了應用控制理論和三維歐拉方程的機翼氣動反設計研究，以及有升力約束情形下機翼跨音速減阻問題研究，分別推導了相應的共軛方程及邊界條件數學表達形式，研究與發展了三維共軛方程的有限體積數值求解方法，及相應梯度公式的數值求解方法，通過對計算網格生成、流場計算、共軛方程數值求解、梯度求解和優化演算法等多方面的有效結合，成功發展了三維機翼的氣動反設計和跨音速減阻優化設計程序，成功地進行了多個設計算例研究。

According to the reservoir conditions and fluid properties, a systematic feasibility study of hot - water injection development is conducted by using a numerical technique for lower interval of du66 block in three aspects : ( 1 ) adaptability of hot - water injection development ; ( 2 ) distribution of residual oil in a later stage of steam stimulation ; and ( 3 ) potential of hot - water injection development

根據杜66塊下層系油藏條件及地層流體性質，從注熱水開發油藏適應性、吞吐後期剩餘油分佈規律和注熱水開發潛力等3個方面，利用數值模擬技術對杜66塊下層系注熱水開發可行性進行了系統研究。

The history and progress of springback researche in bending and 3 - d shallow drawing are all - sidedly presented in this paper with three aspects of theoretic analyzing, numerical simulating and springback controlling

摘要本文從回彈理論、回彈數值模擬分析、回彈控制三方面對彎曲成形、 3 - d復雜淺拉深成形中間彈研究的歷史和最新發展狀況作了較全面的介紹。

According to the two aspects of ocean wave studies that i have made as a p. h. d candidate, the dissertation is divided into two parts : part i is the development and applications of a 2 - d numerical wave tank ( nwt ) and part ii the study of wave - current interaction

根據本人在攻讀博士學位期間所作的兩項海浪研究工作，將學位論文分為二維數值波浪水槽模式的建立和應用，以及浪流相互作用研究兩部分。

In numerical control, data concerning all aspects of the machining operation, such as locations, speeds, feeds, and cutting fluids, are stored on magnetic tape, cassette, floppy or hard disks, or paper or plastic ( a thermoplastic polyester )

在數控中，關于機床控制所有方面的數據，例如位置、速度、流動、流體分流、存儲在磁帶，軟盤或硬盤，或者是紙，或者是塑料（一種熱塑性的聚酯） 。

In this thesis, the basic aspects about forming process and mould for cold precision rotary forging of common bevel gear are studied with method of theory and experiment. the rules and numerical relations of dimensional precision relaying among common bevel gear part, die cavity and tool electrode are established. meanwhile, the design and calculation methods for process parameters, mould, common bevel gear forging and preform and tool electrode are established

本論文對傘齒輪冷擺輾精密成形工藝的若干問題進行了系統的理論和實驗研究，深入分析了傘齒輪冷擺輾精密成形工藝的物理力學本質，確定了傘齒輪產品零件?模具?電極之間的幾何尺寸精度傳遞規律和數值關系，建立了冷擺輾精密成形工藝參數和模具、傘齒輪鍛件和預制坯、工具電極的設計計算方法。

However, this is depend on the accurate simulation on nonlinear transient electromagnetic field, which relate with many aspects, include transient theory of machine, numerical calculation method, solving nonlinear equations, fem mesh generation and so on

但是，這首先要依賴于對電機非線性瞬態過程的準確模擬，涉及到從電機的瞬態過程理論、數值計算方法、乃至非線性方程組求解和有限元剖分等多方面的問題。

Meanwhile, the mlfipwa is superior to the mlfma in numerical operation and some other potential aspects

同時，該演算法較之多層快速多極子方法有明顯的數值實現優勢和潛在優勢。

So, it is definitely different from other amb - ab. three aspects have been studied theoretically in this paper which were based on an analysis of a compliant multleaf journal self - acting air bearing, which are as follows : ( 1 ) a set of theoretical analysis method which include the development of. physical and mathematical model, the solution of governing equations and the prediction of static and dynamic performance of the foil gas bearing is proposed. the above theoretical analysis method provides a possibility for numerical analysis

本文在分析懸臂型彈性箔片徑向動壓氣體軸承工作原理的基礎上，做了以下幾個方面的工作： （ 1 ）建立了懸臂型彈性箔片徑向動壓氣體軸承的物理和數學模型，確立並求解了控制方程，得到了靜、動態性能的穩定性分析方法，為數值分析懸臂型彈性箔片徑向動壓氣體軸承奠定了基礎。

Numerical characteristic parameters of meshless method have been investigated in solving radiative heat transfer problem. meshless method is also extended to solve the transient radiative transfer equation. the main work includes the following four aspects of investigations

本論文主要研究內容包括以下四個方面: 1 .在輻射傳遞的離散坐標方程基礎上，建立了均勻折射率介質內輻射傳遞方程求解的局部彼得羅夫伽遼金無網格法。

Based on the above purpose, in this paper, aiming at the questions in the past landslide prediction, such as sole research technique, backward method and theory achievement with weak practical, application and so on, time prediction and evaluation of landslides is emphatically researched from quantitative, qualitative and numerical modeling three aspects on the basis of widely consulting the domestic and foreign documentation and material related to landslides forecast. according to landslide monitor material, landslide quantitative prediction is realized by using landslide prediction and evaluation models ; on the basis of experts " experience knowledge, landslide qualitative prediction is realized by using the method and way of expert system ; landslide numerical prediction is realized by using simulation method to establish geology - mechanics - distortion model ( gmd )

基於上述目的，本論文針對過去滑坡預報的研究方法單一、手段落後，理論成果的實際應用性不強等問題，在廣泛查閱國內外有關滑坡預測預報文獻資料的基礎上，著重從定量、定性和數值模擬三個方面對滑坡的時間預測預報開展研究：依據滑坡的監測資料，運用滑坡預測預報模型實現了滑坡的定量預報；以專家的經驗知識為依據，運用專家系統的方法和手段實現了滑坡的定性預報；利用數值模擬手段，通過建立滑坡的地質?力學?變形模型（ gmd模型）實現了滑坡的數值預報。

The paper expounds and estimates the status quo of research into rock blasting theory in aspects of blasting fracture rock, rock properties under the shock load, and numerical modelling of rock blasting

本文從裂隙巖體爆破、沖擊荷載作用下巖石特性、巖體爆破數值模擬等方面論述、評價了巖體爆破理論的研究現狀。

The electromagnetic field theory and numerical calculation are the research basis of electromagnetic scattering problem, they have important applications in many aspects such as calculation of radar cross section ( rcs ), analysis of electromagnetic scattering characteristic of target, electronic countermeasures, stealth design and identification of target

電磁場理論及數值計算是研究電磁散射問題的基礎，在目標雷達散射截面（ rcs ）計算、電磁散射特性分析、電子對抗、隱身設計及目標識別等方面都有重要的應用。

Important missing aspects are : turbulent flow, numerical discretization techniques specially the relevant and difficult topic of numerical treatment of advection and related numerical methods of solution, variable property fluids, boundary layers, stability, etc. rather, it focuses on more primitive and fundamental issues of numerical treatment of advective equation and proper formulation of initial boundary value ( ib vp ). numerical problems associated with advective dominated transport include spurious oscillation, numerical dispersion, peak clipping, and grid oriention. however, the key of numerical solution of three - dimensional advective problem is searching for a high - precision interpolating function, which can keep the computational stability and low damping

3 、針對三維純對流方程提出了實用的擬協調單元模式，並與線性插值模式和協調單元模式比較后表明，在物理量大梯度變化的情況下，線性插值模式會產生較大的數值阻尼，導致解的失真；協調單元模式具有極高的計算精度和良好的計算穩定性，還可較好地克服數值阻尼，但由於計及物理量的二階導數項，計算工作量大，邊界條件給定尚存在一定的困難；而擬協調單元模式不僅具有協調單元模式計算精度高的優點，還避免了物理量的二階導數項，可大大地減少計算工作量。

The numerical modeling and calibration considers the following aspects : the element types, the modeling of the weld, the modeling of the members and the behavior of material and geometrical non - linearities. 4, in the parameterical study, a amount of joints with the variable joint parameters under different load - case are analyized. based on the analytical formula and the experimental and numerical results, design recommendation on the static strength for such connections are proposed

（ 4 ）參數研究:運用已經建立的數值模型，對平面x型和空間xx型相貫節點在各種工況作用下的靜力工作性能進行了大量系統的參數研究，並與現有設計指南和規范進行了比較，從中得出了各節點參數對極限承載力影響的一些規律。

The simulation of the 1 - d transient coupled heat and moisture transfer is further improved, in the aspects of modeling, boundary conditions assuming and numerical schemes utilizing

在模型建構、邊界條件、數值方法等方面進一步完善了多層多孔結構內一維瞬態熱濕耦合模擬研究。

In conclusion, the work in the present thesis is devoted to developing new numerical methods, designing new structures with large absolute bandgap and studying the negative refraction for photonic crystals. much progress has been obtained in each of the above - mentioned aspects

總之，本論文工作涉及光子晶體新理論演算法、光子晶體新結構的設計以及光子晶體在負折射方面的嶄新應用，在各個方面都取得了有特色的研究成果。

A new kind of numerical method, the statistical distributed source boundary point method ( sdsbpm ), used to calculate the acoustic radiation problem caused by the random vibrating body is presented ; a test for the effectiveness of the sdsbpm is carried out on the aspects of its calculation precision, adaptation to the geometric shape of vibrating body as well as its ability to overcome the non - uniqueness problem through various examples with different boundary shapes and different boundary value distributions

第四章提出了一種新型的隨機振動聲輻射計算方法?統計分佈源邊界點方法；通過諸多不同邊界曲面和不同邊界量分佈的隨機振動聲輻射算例，從計算精度、對振動體表面幾何形狀的適應性以及克服解的非唯一性等方面，對統計分佈源邊界點方法的有效性進行了考證。