artificial crack 中文意思是什麼

artificial crack 解釋
人造裂紋
  • artificial : adj 1 人工的，人造的；人為的 （opp natural）。2 摹擬的 （opp genuine real）; 不自然的，矯揉造作的...
  • crack : vt 1 使破裂；敲破，敲碎，砸碎（陶器等）；嗑（瓜子等）；【化學】裂化（石油等）。2 把（槍打得、鞭子...
  1. The crack stress distribution of the artificial short slit along river flow direction shows regularity and exists in a limited crack area

    壩體表面人工短縫的開裂應力在順河向的分佈具有一定的規律性，且存在一個極限開裂?圍。
  2. Lwac is becoming one of the important trends in the development of modern concrete. to solve the problems such as poor workability, large shrinkage value and crack easily of lwac, on the basis of systematic experiments, the author establishes lwac workability evaluation system and advances the testing method of pumping performance of lwac ; the control technology of discrete of lwac is introduced through analyzing structure formation process and establishing the mathematic model ; based on studying the strength source of lwac and the function mechanism of artificial additive, this paper not only confirms some major factors which affect concrete strength but explores the preparation technology route of high strength lwac ; the different effects of several fibers in lwac have been studied, and the fiber is introduced in pumping lwac to improve its crack - proof performance

    本文針對輕集料混凝土工作性能差、收縮變形大、易於開裂等問題，根據大量實驗建立了高強輕集料混凝土工作性能的評價體系，提出了高強輕集料混凝土可泵性的測試方法；通過分析輕集料混凝土的結構形成過程，建立了輕集料混凝土拌和物物料運動的數學模型，提出了防止輕集料混凝土分層離析的技術措施；通過對輕集料混凝土強度來源和礦物摻合料的作用機理的深入研究，確定了影響輕集料混凝土強度因素的主次關系，提出了配製高強輕集料混凝土的技術路線；研究了纖維在輕集料混凝土中的增強增韌、減少收縮的作用機理。
  3. On the basis of brief introduction of danjiangkou dam extension project which is in the middle route water resources project of the south - to - north water diversion, the present construction methods and existing problems about key technology of increased artificial concrete keyway of jointing surface between new concrete and existing concrete are analyzed, and a new construction method by saw - cutting and static crack for construction of concrete keyway is researched

    摘要在簡要介紹南水北調中線水源工程丹江口大壩加高工程概況的基礎上，針對大壩加高中新老混凝土結合面新增人工鍵槽施工的關鍵技術，分析了現有施工方法及存在問題，研究並提出了新的鋸割靜裂法施工法。
  4. Taking the natural frequency arid the ratio of frequency drop as input characteristic parameters, crack damage in the cylindrical supporting shell of a portal crane is diagnosed and its length and position are forecasted, applying finite element emulation and artificial neural network technologies

    摘要應用有限元模擬技術和人工神經網路模型，以反映結構損傷程度的固有頻率和損傷的頻率下降率作為神經網路輸入的特徵參數，對門座起重機筒形支柱上出現的裂紋損傷長度和位置進行了綜合診斷和預測分析。
  5. This paper is taking model seismology theory as guidance, regards ultrasonic experimental method as major research means, and has made artificial crack and pore model according to physical model similar principle with various materials

    本文以模型地震學理論為指導，把超聲波實驗方法作為主要的研究手段，根據物理模型相似性原理，用多種材料製作了人工裂縫模型和孔洞模型。
  6. Because concrete crack will greatly affect the security of concrete penstock in hydropower station, the paper applies the theory of global optimization method to predict the maximum concrete crack width in steel - lined reinforced concrete penstock and bring forward a predicting model based on the theory of artificial neural network ( ann )

    摘要基於人工神經網路的全局優化方法的基本理論，對鋼襯鋼筋混凝土壓力管道外包混凝土結構裂縫預測進行了研究，提出了基於神經網路的管道混凝土裂縫預測模型。
  7. Some problems related to crack stability of concrete dams in the field of dam monitoring are studied in this dissertation using theories and mathematics such as chaos theory, fractal geometry, artificial neural networks, grey system theory, motion stability theory, catastrophe theory, and so on

    本文應用混沌理論、分形理論、人工神經網路、灰色系統理論、運動穩定性理論、突變理論等理論和方法，對大壩安全監測中有關裂縫穩定性的相關問題進行研究。
  8. Along with increase of pressure, the parameters such as velocity, amplitude, main frequency and quality factor of seismic wave change big gradually, while change very weakly with the change of temperature. through testing research for artificial crack and pore model, we conclude that crack density, azimuth, opening and the change of pore have obvious influences on speed, amplitude, attenuation ( or quality factor ) and main frequency of seismic wave etc. but, seismic wave dynamic characteristics are more evident than its kinematical characteristics for the change of crack and pore parameters. therefore, it offers reliable experiment foundation for detecting crack and pore by seismic wave kinematical characteristics ( such as amplitude, attenuation and main frequency etc. )

    通過對人工裂縫和孔洞模型的超聲波實驗研究，可以認為：裂縫密度、方位、張開度和孔洞密度的變化對縱橫波的速度、振幅、衰減（或品質因子q ）和主頻率等參數均有明顯的影響，但裂隙參數的變化對地震波動力學特徵參數（振幅、衰減、主頻率等）的影響遠遠大於對運動學特徵參數（速度等）的影響，這為利用地震波的振幅、衰減和主頻率等屬性參數進行裂縫和孔洞特徵的檢測提供了可靠的實驗基礎。
  9. 5 experimental study about the influence that is resulted from the artificial crack flaw on the propagation of longitudinal stress wave in pipeline has been done. experimental result make us know that the signal collected can reflect the defect " s influence which will provide the important basic for the next analysis in this paper

    5 、利用實驗研究了人工裂紋缺陷對管道中波傳播特性的影響，通過對比，用實驗證實了這種影響確實存在，為本文進一步對缺陷的識別和定位提供了重要的基礎。
  10. With artificial neural network to consider affecting the rock to crack in pre - split blasting, people have established the calculation of intelligence model system which can predict and forecast the result and overcome the lack of the theory, model and empirical formula. the system has very great realistic meaning in designing and guiding actual engineering. with the rock ' s crack in pre - split blasting as the studied object, the reason of crack of mineral and rock in pre - split blasting and the parameter design are studied in the paper

    運用人工神經網路綜合考慮影響巖石預裂爆破成縫的因素，建立運算模型智能系統，可克服目前預裂爆破成縫理論、成縫模型、經驗公式的不足，對實際工程的設計與指導，具有很大的現實意義本文以巖石預裂爆破成縫作為研究對象，對礦巖的預裂成縫機理及其參數設計進行了研究。
  11. The effect of load on the crack is discussed using numerical simulation approach. then, the data mining approach to the unfavorable load combination of the crack is proposed using artificial neural network. the rule of the unfavorable load combination of the crack is generated and three dimensional load combination is given

    （ 2 ）概要闡述了溫度場的模擬，研究了薄層單元和分佈裂縫模型，應用數值模擬分析方法，結合工程實際，分析了荷載對裂縫的作用效應；在對人工神經網路方法與數據挖掘關系深入研究的基礎上，提出了基於神經網路的裂縫不利荷載組合挖掘方法，提取裂縫的不利荷載組合，並研製了三維荷載組合曲面圖。
  12. Moreover, the good crack - proof performance cl40 - cl60 fiber - reinforced pumping lwac is prepared through mixing up superplasticizer, artificial additive, fiber, and adopting other technologies. this kind of lwac is also successfully applied to caidian han river bridge project that reduced the cost, shortened the construction period and archived great economic benefit

    採用摻加纖維增強、高效減水劑、礦物摻合料等材料復合技術，研製出抗裂性能好的cl40 - cl60纖維增強增韌泵送輕集料混凝土，並成功應用在蔡甸漢江大橋，節約了資金，縮短了工期，取得了顯著的經濟效益。
分享友人
分享到 Line

分享到臉書