比尺模型 的英文怎麼說
中文拼音 [bǐchǐmóxíng]
比尺模型
英文
scale model-
The frozen coal destruction is the tension stress destroys, and establish the frozen coal cutting model in this foundation, obtains the cutting force, feeding force, tooth spacing according to the smallest energy principle. bring forward a rotary drilling mothod to unload the frozen coal, the broken ability is strong, without frozen depth limits, then obtains this machine working parameters, has combined this method with a grab and determined the plane of vehicle - carried rotary drilling movable coal - unloader
凍煤破壞是拉應力破壞，在此基礎上建立了凍煤的切削模型，根據最小能量原理得到截割力，進給力和截齒間距的計算公式，分析得到截割力與切削厚度成正比，隨著前角的增大而減小;截齒最優截距與截齒尺寸有關且與切屑厚度成正比;進給力隨著截齒前角增大而增大的規律。By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent
最後，本文還對絮凝動力學和絮體結構進行了研究，在前人研究的基礎上，針對高分子絮凝黃河泥沙，對絮凝過程作了一些符合試驗條件的假設，建立了顆粒碰撞頻率表達式，應用了顆粒數量平衡方程，從而建立了絮凝過程的動力學生長模型，模型計算結果與試驗數據對比表明，二者趨勢一致，在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程；對絮體結構的研究中，應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察，將絮體分為絮粒、絮團和絮網三個不同的生長階段，通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體，建立了絮體結構模型，計算得到的模型絮體分形維數基本與試驗中的實際絮體相符，在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。Furthermore, a plan of designing the small model having a step bottom is provided in the experiment of restricting model. and a plan of jetting from foreside and middle part of the large scale model is adopted in experiment, all these are our innovative points
此外，在小比尺模型試驗中，還提供了一種斷階噴氣試驗設計方案，在大比尺模型試驗中，採用了首中部同時噴氣的方法，這些都是本文試驗的創新之處。In this paper, we apply the theory of " nature objects existed being excellent and washed out being of feebleness " to automated map generalization basing on thinking of the conditions of map use, characters of map regions and map scale. two generalization models which are called " constrained delaunay triangle net generalization model ( cdtngm ) " and " circle generalization model ( cgm ) " are created
本文在考慮了地圖用途、制圖區域地理特點和地圖比例尺等因素的基礎上，把「優勝劣汰」的思想運用到了地圖自動綜合中來，並實現了「約束delaunay三角網綜合模型」和「 circle綜合模型」兩個演算法模型。The important meaning in which this direction studied has lain in establishing the connection between the material science of concrete and civil engineering, analyse the strength in terms of material microcosmic or the mesoscopic, have important meaning to understanding, know the essential law of the strength of concrete. this text divides six chapters altogether. chapter one reviewed the pore structure in nowadays domestic and international research current situation, including the concrete examines research, research of the pore structure model and the research current situations of pore structure and strength relation of the pore method, have introduced some most important achievements of structure research of pore ; chapter two narrated much yardstick of the material mesoscopic structure of concrete and principle of examining pore technology of material of concrete, and the commonly used sign parameter in discussedding the pore and material pore of quito of cement and analyse, have explained that the influence factor of mip to the result of study of pore, has pointed out the limitation in mip in the pore structure ; analyse porosity and strength relation development course of model emphatically, and has carried on comparative analysis to the existing model, has pointed out the weak point of the original model ; on the basis of " ing integrate synthetically ", propose concrete pore structure compound body model and pore physical model of systemlex body ; chapter five carried on the corresponding test data to compares to the model parameter appearing in model of chapter four with and analyses, have received k value of the characteristic of strength of matrices of reflecting according to the method to return to analysis, and calculate the influence produced on the strength of concrete in revision that can probed into the content of cement, elastic mould and surface energy, exactness of the inspection model ; chapter six is the conclusion, according to studying the survey this text to some research conclusions of the pore structure and making corresponding prospect to the structure development of pore
第一章回顧了孔結構在當今國內外的研究現狀，包括混凝土測孔方法的研究、孔結構模型的研究及孔結構與強度關系的研究現狀，介紹了孔結構研究方面的一些最重要的成果；第二章敘述了混凝土材料細觀結構的多尺度性及混凝土材料測孔技術的原理，並討論了水泥基多孔材料孔隙分析中常用的表徵參數，也說明了壓汞法測孔對研究結果的影響因素，指出了壓汞法在孔結構研究中的局限性；第三章是著重分析了孔隙率與強度關系模型的發展歷程，並對已有的模型進行了比較分析，指出了原有模型的不足之處；第四章在「綜合集成」的基礎上，提出了混凝土孔結構復合體模型和孔系統的物理模型，並模擬了該模型下由各單體並聯形成的復合體的斷裂過程，最後根據所建模型編制了相應的計算程序，可根據輸入的孔徑分佈與水泥含量等參數，實現混凝土理論強度的計算；第五章對第四章模型中出現的模型參數進行了相應的試驗數據對比分析，根據回歸分析的方法得到了反映基體強度特徵的k值，並從理論上探討了水泥含量、彈性模量和表面能的修正對混凝土強度計算產生的影響，檢驗模型的正確性；第六章是結論與展望，根據研究綜述了本文對孔結構的一些研究結論並對孔結構發展作了相應的展望。The paper presents several aspects in partition rectification and visualization of raster image. adopt technology of visualization for scientific calculation, vector diagram of deformation 、 contour chart of deformation and drawing of three - dimensional are realized. delaunay tin in view of deformation feature is constructed on base of selected grid control points and methods and mathematical models for partition rectification are realized based on the delaunay tin. software of geometric rectification for large scales are realized and applied in project
本論文針對柵格影像的變形可視化及分塊糾正展開研究，取得了以下幾方面的研究成果：一、採用科學計算可視化技術，繪制變形矢量圖、變形等值線圖和三維效果圖，實現了柵格影像變形特徵的可視化；二、提出了在格網控制點（ gcp ）數據基礎上選擇性構造顧及變形特徵的delaunay三角網，並基於構造的三角網實現了分塊糾正的方法和數學模型；三、採用vc編制了影像幾何糾正軟體，實現大比例尺掃描地形圖的糾正，並在工程中得到應用。By the scale of 1 : 35 flood - relief model test, combined the structures built and the pump entrance will be built of baishan dam, to decide the overall arrangement of the water cushion
通過1 ： 35比尺的整體泄洪模型試驗，結合白山已建的建築物及籌建的白山大泵進水口，選定水墊塘的總體布置方案。Abstract : through study on energy dissipation of goupitang project on the wu - jiang river, the velocity field in the water cushion pool downstream ski - jump or drop was measured by hot - film anemometers on a fine model with scale 1 380
文摘:結合烏江構皮灘水利樞紐工程消能問題研究，用熱膜流速儀在比尺為1 380的精細模型上量測了拱壩挑跌流在水墊塘內的流速場，並由試驗成果分析了淹沒射流在水墊塘內的消能過程，計算了消能率。The design of huge rate artillery model and madding methods were solved
研究解決了火炮大比例縮尺模型的設計方法和製造手段。The data got from the shooting tests, conversed by the theory of similitude and eliminated the system errors, were compared with the data from the approval test in the national shooting field. it verified that the full parameters artillery physical simulation theory was right. it verified that the huge rate model design and madding methods were reliable
把模型炮實驗獲得的數據，按相似理論換算，並消除相似畸變帶來的試驗誤差后，與原型炮在國家靶場定型試驗的結果比較，證明了創建的火炮全參數物理模擬理論的正確性；證明所採取的大比例縮尺模型的設計方法和製造手段的可靠性；證明用縮尺的模型炮代替副炮進行多項目綜合物理模擬試驗技術是成功的。This paper takes jin ’ ao mansion and adjacent buildings as the study object. first we put the stated reduced scale model in the atmospheric boundary layer which the tunnel simulates, applied the dynamic pressure measure technology on the building ’ s surface to get the mean and fluctuating wind pressure coefficient, drew out the contour of pressure coefficient and analyzed its distributing law and characteristic
本文以金奧大廈及其鄰近建築作為研究對象，首先把一定縮尺比的模型置於風洞模擬的大氣邊界層環境中，運用建築表面動態測壓技術獲得金奧大廈表面的時均風壓系數和均方根風壓系數，繪制時均風壓系數和均方根等值雲圖並分析其分佈的規律和特點。Vibration characteristics test was carried on a model of one three - spanned prestressed concrete ( pc ) shew continuous box girders, which was designed in jing hu high speed railway of china. we discuss the difference between the results of test and 3d fem analysis with two cases of orthogonality and shew, and explore the dynamic properties of skew box girders
通過對我國京滬高速鐵路設計中的一座三跨預應力混凝土斜交箱形連續梁橋縮尺模型自振特性參數的測試，比較了正交、斜交箱梁的固有頻率的差異，通過與空間結構分析結果的對比，最後討論了斜交箱梁的動力性能。Abstract : vibration characteristics test was carried on a model of one three - spanned prestressed concrete ( pc ) shew continuous box girders, which was designed in jing hu high speed railway of china. we discuss the difference between the results of test and 3d fem analysis with two cases of orthogonality and shew, and explore the dynamic properties of skew box girders
文摘:通過對我國京滬高速鐵路設計中的一座三跨預應力混凝土斜交箱形連續梁橋縮尺模型自振特性參數的測試，比較了正交、斜交箱梁的固有頻率的差異，通過與空間結構分析結果的對比，最後討論了斜交箱梁的動力性能。Stress response of the tower wall at the least favorable section of all of the single section on the cable tower anchor segments of the cable - stayed bridge was studied under the annular pre - stress with cable force and tensile force by comparing the experiment results of the full - scale model of segment with the results of the finite element simulation analysis according to the forced status of the cable tower under practical conditions
摘要通過索塔錨固區節段足尺模型試驗結果和有限元模擬分析比較，結合索塔受力的實際工況，對異型截面斜拉橋索塔錨固區節段最不利斷面在環向預應力與索力共同作用下塔壁的應力響應進行了研究。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。In experiment study, the author designed two models - small scale model and large scale model according to difference of experiment pool and analyzed the feasibility of the two models
在試驗研究部分中，根據試驗水池的不同，設計了兩種模型? ?小比尺模型和大比尺模型，並分別對其可行性進行了分析。Based on the researches at home and abroad, aiming at the application of dynamic consolidation in compacting loess embankment, this paper makes assessments and analyses of the concerned factors and provides the laws of dynamic consolidation dealing with loess embankment according to the large - scale model test indoor ; combined with tonghuang highway construction, field tests of dynamic consolidation dealing with loess embankment is carried out in the representative loess - embankment experimental sites and some regularities of loess before and after handled by dynamic consolidation is put forward by physico - dynamic property experiments and electron - analysis ; at last, the author makes a systematic analysis of information related and presents the applicable condition, compacting technique and checking method which applies to dynamic consolidation dealing with loess embankment on the basis of field tests and model experiments indoor
本文在國內外資料調研基礎上，針對強夯法在黃土路堤壓實施工中的應用，對強夯處理黃土路堤的有關因素進行了評價分析，並通過室內大比尺模型試驗得出強夯壓實黃土路堤的規律；結合銅黃公路建設，選擇典型黃土路堤試驗段，進行了強夯壓實黃土路堤的各項現場試驗，通過物理力學性質試驗和電鏡分析得出強夯前後黃土料壓實體的有關規律；最後，在室內外各項試驗基礎上，對有關資料進行了匯總分析評價，提出了強夯處理黃土路堤的適用條件、施工工藝及檢測方法。Recent progress of constructing warping dam and prospects on physically - based scale dam model
淤地壩建設回顧及其物理比尺模型研究展望Now tidal bore is one of hotspots and difficulty in scientific research. with advanced tide - controlling technology and high accurate equipment, this paper does the research successfully on the formation and changes of tidal bore under natural condition and after the bridge being built. and those processes are observed effectively
涌潮的研究是當前的熱點與難點之一，本項研究採用先進的潮汐控制技術與高精度的測試儀器，在比尺模型中成功地模擬出自然和建橋條件下涌潮的形成、變化過程，並有效地加以觀測。Beginning with the cause of tidal bore, then making use of measure data and combining with scale physical modeling, this paper does the research about the impact that bridge engineering has on the qiantang bore, such as hangzhou bay bridge, guzhu bridge, xiaoshan bridge etc. it provides the scientific evidence for approving those engineering above
本文從涌潮的成因入手，利用實測資料分析與比尺模型試驗的研究方法，全面地研究了杭州灣大橋、沽渚大橋、蕭山通道等橋梁工程對錢塘江涌潮的影響程度，從而為工程建設提供科學的依據。分享友人