geometric simulation 中文意思是什麼
geometric simulation
解釋
幾何模擬- geometric : n. 有幾何圖形的東西。adj. 1. 幾何學的，幾何圖形的。2. 按幾何級數增長的。adv. -rically
- simulation : n. 假裝；模擬；裝病，裝瘋；【生物學】擬態，擬色。
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System structure model based on simulation database is presented, by which realize effectively to integrate nc geometric simulation with physical simulation. 2. in the nc geometric simulation and nc verification, a partial rendering algorithm is improved by using dynamic oob ( oriented bounding box )
2 .在幾何模擬方面，改進了幾何模擬局部刷新演算法，提出動態方向區域法，使在加工模擬過程中可以進行旋轉、放大和縮小等動態操作，便於了解工件在模擬加工過程中的具體情況。 -
Chapter 4 time - dependent computational simulation of the response of cable - suspension feed system in gusty wind based on the time - independent structure finite element method, and with consideration of the movement laws of cabin, a 3 - d time - dependent structure finite element model formulated by a new method named iss method ( instantaneous structure supposition method ) to deal with the vibration response of cable - suspension feed system in gusty wind is presented. in the model, all sources of geometric non - linearity, cable sag and changes of cable geometry due to large displacement, are fully considered
基於時不變結構的有限單元法，在綜合考慮饋源艙運動規律的基礎上，提出了時變系統的瞬時結構假定法，通過將懸索離散為索桿單元，建立了系統的時變有限元模型，該模型充分考慮了懸索的垂度和大變形等幾何非線性因素，應用ne 。 -
Abstract : in light of thicker grain and smaller viscosity of debris flow, a segmented simulation of the debris flow with flume is presented. for the first time. more difficult resistance similarity is brought about by geometric rate without excessive coarsing and discontinuous similarity of sand grain composition in model is eliminated with different grain scale. on this basis the density similarity and sand conveying similarity are achived. the method presented is verified through a model test case
文摘:針對水石流顆粒粗，粘性小的特點，提出了利用水槽進行分段模擬水石流的設想，首次通過幾何變率解決難度較大的阻力相似問題，改變了以往過度加糙的方式;通過變粒徑比尺的方法消除了模型沙級配不連續相似的問題，較好地實現了固體物質級配相似，達到了泥石流的密度相似和輸沙相似.通過水槽概化模型試驗實例，對本方法進行了驗證 -
Firstly, a simple and practical representing method of the tooth edge tangential vector is applied to replace the traditional differential formula, the simple solving technique of edge contact problem makes the geometric edge contact analysis of the complex curve surface realize. secondly, using numerical searching and mathematical programming method solves the contact directions and loaded contact problem. finally, whole numerical simulation method is provided for loaded tooth contact analysis of high contact ratio spiral bevel gears
首先以一種簡單實用的輪齒邊緣切矢量的數學表示方法取代了經典的微分表達式，大大簡化了幾何邊緣接觸的求解，使復雜曲面的幾何邊緣接觸分析得以實現；其次又採用數值搜索與數學規劃法求解了邊緣接觸的主方向和承載接觸問題，為高重合度弧齒錐齒輪承載嚙合全過程的數值模擬提供了完整的方法。 -
Abstract : the method of generating infrared image of target in the sky was proposed. at first, the geometric model of the target in the sky was built with grid ; secondly, using the theory of aerodynamic and heat transmission, the thermal equation of the different skin of target ( the skin with and without heat source, the skin with heat source and the skin of gasoline tank ) were established ; thirdly, as an example, the solution of the thermal equation of ultrasonic plane was obtained ; finally, the result of the computer simulation were proposed
文摘:提出了空中目標的紅外圖像生成方法，首先是空中目標的幾何建模及其網格化，然後據飛機空氣動力學和傳熱學原理提出了空中目標幾種蒙皮（單層蒙皮、內有燃油蒙皮、發動機影響區蒙皮）的熱平衡方程，然後以超音速飛機為例，介紹了方程的求解過程，最後給出了計算機的模擬結果及分析。 -
This dissertation integrates theory analysis with experiment research and makes further research on nc geometric simulation. the establish of the cutting forces model, cutter wear model, machining error predition and compensation, machining parameter optimization in the physical simulation fields are made more research on the basis of the above research contents. the main achievements are as follows : 1
本文採用理論分析與實驗研究相結合的思路，進一步研究了幾何模擬與精度驗證技術，研究了銑削力模型的建立、刀具磨損模型的建立、加工誤差模型與誤差補償技術、基於加工模擬的加工參數優化等物理模擬關鍵技術，主要研究內容和成果如下: 1 .設計了集幾何模擬和物理模擬為一體的數控加工模擬系統的體系結構。 -
Dynamic geometric simulation of sls process based on fractal scanning path
基於分形掃描的選擇性激光燒結過程動態幾何模擬 -
Moreover, the current development status of sedimentation simulation research in china was demonstrated and five big trends for the future development of sedimentation simulation technologies were analyzed. the geometric similitude, kinematic similitude and kinetic similitude between the lab model and the prototype for sedimentation simulation form the basis of three similitude principles, while three similitude rules, i. e., the suspension similitude rule, the particle movement similitude rule and the riverway distortion similitude rule can be deduced from the three similitude principles, and thee principles and rules are the basic theories for the development of physical simulation about the clastic sedimentation processes
沉積模擬實驗模型及原型的幾何相似、運動相似、動力相似及其由上述三個相似性原理導出的懸浮相似、顆粒運動相似及河道變形相似等三個相似準則是開展碎屑沉積過程物理模擬的基本原理；在此基礎上，論述了碎屑沉積模擬研究的主要方法?自然模型法和比尺模型法；提出了開展碎屑沉積過程物理模擬的主要方法步驟，這是本論文第二章的主要內容。 -
Secondly, typical approaches of studying on vegetation have included radiative transfer, four - stream, geometric optics, hybrids of two or more of these, and numerical simulation. then we introduced several models for density or sparse vegetation, soil and desert
然後，簡單論述了建立植被散射模型的發展動態和幾種典型方法：輻射傳輸模型、四通量模型、幾何光學模型以及復合模型等，初步研究了用於稠密植被、稀疏植被、土壤、沙漠等環境背景的雙向反射函數模型。 -
Physical simulation is a complicated research subject, including plenty of foundations, theory and experiments to study. it must solve in order to develop further in nc machining technology. physical simulation research based on nc geometric simulation has an important meaning for improving machining efficiency and machining quality of workpiece
數控銑削加工物理模擬是一個復雜的研究課題，涉及多方面的基礎和理論、實驗的研究，是數控加工技術進一步發展和應用必須突破的難點，在數控加工幾何模擬基礎上進行物理模擬關鍵技術的研究，對提高數控加工效率和質量具有重要意義。 -
More than 200 different condition 3d viscosity steady flow fields in the thrust vectoring nozzle at different nozzle pressure ratio and different nozzle area ratio and different geometric defected angle is calculated by the program developed. and the related performance parameters are acquired by numerical simulation
利用該程序計算了某矢量噴管在不同的壓比、面積比和幾何偏轉角下的200多種三維有粘流場，獲得了矢量噴管的性能數據。 -
Based on a 7 - axis automatic fiber placement robot developed by our selves, we built up the geometric modeling, fiber placement pattern and a simulation software with following functions : mandrel shape design, fiber placement pattern production, and machine movement simulation. the paper first introduced automatic fiber placement and outlined the importance for research on the satellite triangle conjunction of frame. the detail for the geometric modeling process was described
本文以構架式衛星結構的接頭零件為研究對象，並以高性能的自動鋪絲技術硬體專用設備? ?七軸自動鋪絲機器人為工作單元，結合復合材料結構設計的特點，開展了接頭零件的幾何建模、線型設計和模擬等研究工作，完成了simjoint模擬軟體。 -
Geometric simulation of meso - structure evolution of metal material in plastic deformation
金屬材料塑性變形過程中細觀結構演化的幾何描述 -
System structure of nc machining simulation by integrating nc geometric simulation with physical simulation is designed
提出以模擬數據庫為中心的系統結構模型，實現幾何模擬與物理模擬的高效緊密集成。 -
In this paper, a three - dimensional ( 3d ) program for the three - dimensional reactive flow fields of complicated geometric nozzle, which governed by the compressible full navier - stokes equations with realizable k - s turbulent model, has been upbuilt by using full implicit couple arithmetic and fvm ( finite volume method ) based on understanding and assimilation of a two - dimensional program group of cr ( chamber - radon ). the new program fulfils the urgent need of numerical tools for simulating three - dimensional reactive flow - fields of hylte ( hypersonic low temperature ) and other latest nozzles, for which cr is out of action in simulation, and can be applied to simulate other chemical laser system, such as chemical oxygen iodine laser ( coil ), overtone fluoride hydrogen, all - gas iodine laser, and so on. furthermore, some related topics about nozzles design and engineer ing also have been discussed
本文在二維cr （ chamber ? radon ）程序研究的基礎上，採用有限體積方法和完全隱式的耦合演算法，通過求解帶realizablek -兩方程湍流模型的多組分、有反應的三維完全納維埃?斯托克斯（ n ? s ）控制方程，建立了一套能夠對復雜形狀的三維噴管和光腔進行數值模擬的三維程序，解決了連續波df hf化學激光器增益發生器設計缺乏三維數值模擬工具的問題，並用該工具解決了cr程序無法實現的hylte等復雜三維噴管流場的理論模擬問題。 -
Study of geometric model and simulation communication of awops
系統幾何造型及模擬通訊的研究 -
It includes geometric design, traffic organization design and signal timing of signalized intersection. the techniques of expert system and computer - based simulation are employed. several schemes that are generated from expert system of signalized intersection design are inputted into microscopic simulation system, and then optimal scheme is put forth
本文研究了城市道路信號交叉口的優化設計方法，具體的研究過程是：利用專家系統技術，從幾何設計、交通組織設計以及信號配時等三方面對信號交叉口進行優化設計，然後利用微觀計算機模擬技術對優化方案進行評價。 -
Analysis and simulation of the geometric nonlinear behavior of cable - stayed bridges
斜拉橋幾何非線性效應分析與數值模擬 -
In the article, the numerical simulation software ansys is used to analyze the working stress distribution in butt joint and the effect of the geometric parameter on the stress concentration efficiency
摘要通過數值模擬軟體ansys分析對接接頭的工作應力分佈，找出了對接接頭的幾何參數對應力集中系數的影響。 -
To construct geometric models, the main stem and the branches of coronary artery are assumed to develop along the surface of a sphere which simulates a heart body so as to obtain more accurate spatial 3d asymmetric descriptive models for the simulation of the coronary artery
研究認為血管作為人體的組織器官，是幾十億年的生物進化的結果。近20年來，人們普遍接受的原理主要有：最小能耗原理：最小阻抗原理；最小容量原理。
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