方向性凝固 的英文怎麼說

中文拼音 [fāngxiàngxìngnínggù]
方向性凝固 英文
directional solidification
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 凝 : 動詞1. （凝結） congeal; curdle; coagulate 2. （注意力集中） fix
  • 固 : Ⅰ形容詞（結實; 牢固; 堅硬） firm; hard; solid Ⅱ副詞1 （堅決地; 堅定地） firmly; resolutely 2 [書...
  • 方向 : direction; orientation
  • 凝固 : solidify; solidification; coagulation; congealing;clotting; hardening; solidifying; freezing
  1. Integrating melting, purification and solidification, the system has convenient control, strong ability to mix and oxidize and higher efficiency, and can produce pure and high - class materials with unidirectional microstructure

    該工藝將真空感應熔煉和連續定向凝固技術結合在一起，集熔化、提純、凝固於一體，控制方便，攪拌、脫氧能力強，生產效率高，能生產純凈度高、性能好的定向凝固材料。
  2. Thirdly, it simulated the pumping circuit & dividing circuit with the widely used software matlab / simulink. the displacement of the rod piston and the impact of hydraulic are analyzed in the different input flow ( frequency of pump ) and different reversing time. it found out the cause of hydraulic impact ( one - to - one incorrespondence between the response time of dividing circuit and the operation time of rod piston ), and gave some methods to weaken hydraulic impact. in the final part of the paper, the reliability of the theory analysis is further verified by the experiment of hydraulic system

    首先在流變學原理的基礎上，深入分析混凝土在輸送管道內的流動狀態，得出混凝土泵的負載特性方程；然後根據功率鍵合圖的建模方法，建立泵送迴路和分配迴路的數學模型，並運用模擬軟體matlab simulink對泵送和分配迴路模型進行了模擬，分析了在不同的輸入流量（泵送頻率）和換向時間下，活塞桿的位移和系統的液壓沖擊情況，找到了引起液壓沖擊的根本原因（即分配迴路的響應時間（固定值）與活塞桿的運動時間（變化值）不相匹配） ，並提出了相應的改進方法。
  3. It shows that the method suggested in the paper is simple, applicable for engineering and has good precision. on the bases of the formulas deduced, and combining with relative test datas, it studies in the paper several factors influencing the bearing performance of the simple beams, such as shape of the external tendons, the equal moment segment length, span - to - depth ratio of the beam, valid initial prestress of the external tendons, area of the internal tension reinforcement, strength of the concrete, vertical distance between

    在公式推導的基礎上，結合相關試驗資料，研究了體外筋的形狀、等彎矩區長度、梁跨高比、有效張拉預應力、體內受拉筋配筋率、混凝土強度、錨固點到樑上邊緣在垂直方向上的距離、體外預應力筋水平段長度（雙折線型體外筋的情況）以及荷載類型等對體外預應力混凝土簡支梁受力性能的影響。
  4. Present methods generally based on the statistics of earthquake damage, expert experiences, theory analysis and experimental researches have obvious advantages, disadvantages and certain scopes of application ; ( 2 ) different prediction methods should be adopted against different building conditions, sites, intensity and experiences etc to predict earthquake damage of buildings for prospective accuracy, dependability and availability ; ( 3 ) earthquake damage matrix, which is the foundation of earthquake damage prediction, of 7 kinds of building in the urban areas of zhangzhou city under intensity 6 to 9 has been set up. the damage conditions of different buildings under different intensity are as followings : all kinds of structures are basically intact under intensity 6 ; the reinforced concrete structures are basically intact under intensity 7, but other kinds of structures are destroyed slightly ; the reinforced concrete structures are still basically intact while other kinds of structures are destroyed intermediately under intensity 8 ; the reinforced concrete structures are destroyed slightly, single - story factories and open houses are destroyed intermediately and other kinds of structures are destroyed seriously under intensity 9 ; ( 4 ) the results of earthquake damage predicting of buildings embody the damage when earthquake happens in the future. thus, further identifications and reinforcements should be considered to buildings that will be destroyed intermediately or more under the earthquake with 10 % exceeding probability in future 50 years ; ( 5 ) the direct economic losses caused by damage of buildings resting with the area, structural type, intensity and damage of all kinds of buildings are the main part of the losses of the city in an earthquake ; ( 6 ) the direct economic losses increased progressively toward high intensity by 2 or 3 times

    基於上述研究，得出的主要結論有：建築物震害預測是一個模糊的、系統的、復雜的問題，現有的方法很多一般都是以震害統計規律、專家經驗、理論分析和試驗研究為依據，有其自身的優缺點和一定的適用范圍；應針對不同的建築物條件、場地條件、地震強度和已有經驗等，採用不同的預測方法進行建築物震害預測，以使預測結果達到預期的精確性、可靠性和可操作性；建立了漳州市區7類建築物在6度9度地震作用下的震害矩陣，成為指導抗震防災的重要依據，各類結構的震害情況表現為： 6度地震作用下各類建築物基本完好； 7度地震作用下除鋼筋混凝土結構基本完好外其餘以建築輕微破壞為主； 8度地震作用下鋼筋混凝土結構仍以基本完好為主而其餘建築以中等破壞為主； 9度地震作用下鋼筋混凝土結構以輕微破壞為主，單層工業廠房和空曠房屋以中等破壞為主，其餘建築以嚴重破壞為主；建築物的震害預測結果體現了未來地震來臨時的震害程度，在編制漳州市區抗震防災規劃時，對于遭遇50年超越概率10的地震影響發生中等以上破壞的建築物應考慮進行抗震鑒定和加固；由建築物的破壞所造成的直接經濟損失是城市地震經濟損失的主要部分，重慶大學碩士學位論文中文摘要其主要與建築物總面積、結構類型、地震烈度和各類建築物的震害程度有關;不同烈度造成的直接經濟損失按2一3倍向高烈度方向遞增，漳州市區直接經濟損失由6度至9度的比例關系為1 : 2 . 8 : 8 . 6 : 22 . 8 ;遭遇基本地震設防烈度（ 7度）時，漳州市區直接經濟損失約4 . 5億元，無家可歸人員約40000人，且以磚木結構和多層磚混結構的震害損失最大;地震造成的人員傷亡主要與建築物倒塌及嚴重破壞的程度和總面積以及震時的建築物室內人數密切相關，地震時無家可歸人員主要與住宅倒塌、嚴重破壞及中等破壞的程度和總面積以及城市人均居住面積密切相關。
  5. The scc has the following advantages : remarkably reducing the noisy pollution and the worker s labor intensity in construction, deducing the rough surface or segregation because of missing - vibration or excessive - vibration in conventional construction, resolving the quality - defect problems resulting from lacking - vibration in the section of complex shapes and densely - packed reinforcement area. at the same time, large of industrial solid waste such as fly ash and blast furnace slag is utilized in the proportioning of scc. it is helpful in comprehensive utilization of resource and environment protection, so the scc belongs to " green concrete ", it is a branch of hpc which will be developed in the future

    這種混凝土可以顯著降低混凝土施工中的噪音污染；大幅度減輕工人的勞動強度；減少傳統混凝土施工中因漏振或過振造成的麻面或離析；解決了配筋密集、結構復雜部位因振搗不足而造成的質量缺陷問題；同時，由於自密實混凝土在配製中，大量利用粉煤灰、高爐礦渣等工業固體廢棄物，有利於資源的綜合利用和生態環境的保護；從而被譽為「綠色混凝土」 ，是未來混凝土向高性能發展的方向之一。
  6. Test research and theoretic study on shear strengthening of reinforced concrete restrained beams using externally applied carbon fabrics reinforced plastics under concentrated loads is presented in this thesis, which is part of the project of construction bureau of hunan province

    本文結合省建設廳課題碳纖維加固鋼筋混凝土結構的受力變形性能及加固方法研究，對鋼筋混凝土約束梁斜向貼cfrp抗剪加固進行了試驗研究和理論探討。
  7. Abstract : the crystal structures obtained by static solidification and vibration solidification were compared. it was showed that, in the case of vibration solidification, the orientation growth of the columnar crystal was not obvious, the equiaxial crystal appeared more early. the grains of both types of crystals were quite fine, hardness in the full section was relatively high, and the hardness distribution was uniform. in the former case, the solute segregation in dendritical austenite more severe, and there were lumps of distortion inclusion

    文摘:對球鐵金屬型靜凝固與振動凝固的結晶組織對比表明：後者柱狀晶方向性生長較弱，等軸晶出現較早，且兩者的晶粒均較細，全斷面硬度較高且分佈均勻；前者枝晶奧氏體內溶質偏析大，有畸變夾雜團塊。
  8. Based on the established three - dimensional physical model, simplified terms, specified material parameters in thermal and physical properties, boundary conditions, and the calculation method of heat convection of cooling water, the numerical simulation and analysis on steady - state temperature field for continuous unidirectional solidification of niti shape memory alloy wire billets were proceeded under the condition of different combined parameters using ansys finite - element software

    在建立三維物理模型以及確定材料熱物性參數、邊界條件與冷卻水對流換熱系數計算方法的基礎上，採用ansys有限元軟體對不同參數組合條件下鎳鈦形狀記憶合金線坯連續定向凝固的穩態溫度場進行了數值模擬。
  9. Directional solidified cu - cr in - situ composites have high strength, high electricity but without such problems of interfacial contamination and low stability as in the conventional man - made synthetic composites due to self - driven engender in the process of directional solidification, so this composites are expected to be used as contact cable, which is made for trunk line electrification

    定向凝固cu - cr自生復合材料由於具有高強度、高導電性，同時因其在凝固過程中自動形成而避免了人工復合材料中長期存在的界面污染、穩定性差等不足，因而在電氣化鐵路用電車線材方面有廣闊的應用前景。
  10. Observing the mechanics and effect of the new strengthening method with test and finite element method is supposed to offer a guide for technology and become valuable in theory and practice. both compression test, including four reinforced and three control specimens, and shear - compression test, including nineteen reinforced and four control specimens are being studied in this paper. the research on the curves of load - strain, load - deflection and hysteretic shows that the transverse translation of the reinforced columns is well controlled with an upgrading of both ductility and ultimate bearing capacity ( ubc )

    本文對4根鋼絲網外噴高強砂漿加固鋼筋混凝土柱和3根對比鋼筋混凝土柱進行了軸壓試驗研究，並對19根加固鋼筋混凝土柱和4根對比鋼筋混凝土柱進行了剪壓試驗研究；通過對試件荷載-應變曲線、荷載-撓度曲線和滯回曲線等的研究表明，採用該加固方法能有效的約束柱子橫向變形，並對提高鋼筋混凝土柱的極限承載力和延性有明顯的效果；同時根據理論及加固機理分析提出了適應於此加固方法的軸壓極限承載力計算公式。
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