conventional stress 中文意思是什麼

conventional stress 解釋
一般應力
  • conventional : adj 1 因襲的，傳統的。2 習用的；平常的，常規的；形式上的。3 約定的，協定的；會議的。n ism 依從俗...
  • stress : n 1 壓力，壓迫，緊迫，緊張。2 【語音】重音；重讀；【詩】揚音；語勢，著重點。3 重要（性），重點，...
  1. Through the analysis we found that the effect will become more obviously with the increase of thickness or width of superstratum and the decrease of the coefficient of foundation bed ; ( 3 ) anisotropy and nonlinear elastic f. e. m. model has been established and the effect of stress dispersion in compound two - layer foundation was analyzed on the base of the model. from the analysis we can conclude that the coefficient of subsidiary stress dispersion will amplify with the increase of thickness or width or stiffness of back - up coat ; ( 4 ) the formula which can be used in conventional calculation has been deduced for calculating the coefficient of subsidiary stress dispersion and it also has been affirmed to be reasonable through the checking calculation ; the whole theory of compound two - layer foundation has been brought forward in this paper and it ' ll enrich the theory of composite foundation

    針對以上問題本文做了以下一些工作並得到若干結論： （ 1 ）提出了「復合雙層地基」的概念，並通過工程實例證明此概念的提出有其合理性和必要性； （ 2 ）用彈性地基梁理論證實了復合雙層地基確有應力擴散效應，且擴散效應隨上覆硬層厚度、剛度的增加而增大，隨下臥層基床系數的增大而減小； （ 3 ）建立了非線彈性、各向異性有限元模型，並以此為基礎分析了復合雙層地基的應力擴散效應，得到附加應力系數隨加固層厚度、寬度、剛度的增加而增大的結論； （ 4 ）推導了可用於常規計算的復合雙層地基應力擴散系數公式，並代入工程實例進行了驗證。
  2. It is proved that the connection and steel frame with beam flange dog - bone reduced have superior behavior to the frame of conventional design and the brittle failure is avoided in the steel frame. and conditions of stress development in the dog - bone, and the reason of the brittle failure in the rigid connections is obtained

    了解了狗骨處應力發展狀況；探討了剛性連接發生脆性破壞的原因；並強調指出樑柱連接處焊縫的焊接質量，對能否發揮狗骨式削弱的作用，達到預期的設計目的是至關重要的，必須予以重視。
  3. According to the working modes of mr devices, combining the ohm ' s law of magnetic circuit and the design theory of non - steady magnetic circuit, magnetic structures of the automotive damper have been worked out. to emulate the performance of conventional shock absorber, two automotive mr dampers were designed and fabricated at chongqing university. an applied magnetic field increase the yield stress of mr fluids in flow annular passages, which alters the velocity profile of mr fluid in the passages and raise the pressure gradient between low cavity and high one at some given flow rates

    根據磁流變阻尼器工作模式，利用磁路中的歐姆定律和動態磁路設計原理，結合汽車懸架的技術要求和結構特點，提出了基於剪切模式和流動模式共同作用（混合工作模式）的汽車磁流變阻尼器設計原理，討論了阻尼器動態磁路設計中的若干技術問題；根據流體力學navier - stokes方程，分別利用newton流體特性和bingham流體特性，推導了基於平板模型和軸對稱模型的流變學方程，得出了阻尼器阻尼力的計算方法。
  4. ( 2 ) respectively by elastic theory analyses and methods of structural mechanics, transverse static analytical equations for flexible pipeline rigid pipeline are established whose outcomes are applied in numerical example to compare those with that by finite element method. ( 3 ) considering interaction of filled soil, pipeline and foundation, with an eye to non - linear soil model, in view of the initial geo - stress field and the effects of interface between soil and pipeline, and by finite element method the calculational model and method are built for transverse stress in pipeline. then, by the great finite element analytical software ansys, those outcomes are applied in calculation example of positive buried pipe to educe the distribution of circumjacent soil pressure and stresses on cross section and to compare it with that calculated by conventional ways before those outcomes are applied in engineering case of positive buried pipe with flexible filled materials to confirm distribution of soil pressures after the measure for reduction and to compare it with measurements. as a result, the model set up in this paper is proved to be applicable after all above - mentioned analyses

    本文基於彈性理論和有限元原理與方法，分析了上埋式地下管道橫向力學計算方法和性狀並探討了上埋式地下管道的減荷等問題： （ 1 ）在分析現有幾種典型的管道垂直土壓力計算方法的基礎上，探討了影響垂直土壓力的主要因素以及改進的方法； （ 2 ）分別通過彈性理論分析法和結構力學的方法，建立了地下管道柔性圓環和剛性管涵的橫向靜力計算方程，並應用在算例中，把所得結果和有限元方法所得結果進行對比分析； （ 3 ）考慮填土、管道和基礎的共同作用、土體的非線性特性、初始應力場以及土體和管道的接觸面因素的影響，利用有限元的思路，建立了地下管道橫向力學有限元計算模型和方法，並且採用大型有限元分析軟體ansys ，針對上埋式管道工程算例，得出了管周土壓力以及管道橫截面應力的分佈狀況和規律，並和理論值進行對比；針對施加柔性填料的上埋式管道工程實例，得出了減荷后的土壓力分佈，並和實測值進行了對比。
  5. The properties of nd : glass rod lasers in the heat capacity operation, including the temperature and stress distributions, are simulated and compared with the conventional pumping and cooling scheme

    摘要對釹玻璃棒狀激光器在熱容型的運行方式下的特性，包括溫度和應力分佈作了分析，並和常規抽運和冷卻方式下棒橫截面的溫度和應力分佈作了比較。
  6. Hot - carrier induced oxide breakdown shows different characteristics compared with that induced by conventional fn stress

    與通常的fn應力實驗相比較，熱載流子導致的超薄柵氧化層擊穿顯示了不同的擊穿特性。
  7. Introduced by prestressed pier in the gate of spillway in xiao xia hydroelectric power station, the text reasonably established 3 - d finite elements mechanic model by the advanced finite elements popular in the world which can expediently impose tension of anchor funicular at its place. it also considered possible diversified combination of loading, and indicated that the effect of its prestressed action is fruitful compared with its conventional counterpart by study of mechanic calculation in comparison. as a result, it vastly improved burdening state of pier. by analysis of 3 - d finite element method, it also gained the stress result indifferent boundary conditions such as breast wall joint support and fixed support, and the displacement result in diversified loading combination. those results gained the instructive and reference value in design of prestressed pier

    本文結合黃河小峽水電站泄洪閘預應力閘墩這一工程實踐，採用國際上已成熟的有限元方法，合理地建立了預應力閘墩的三維有限元模型，該模型可方便地按預應力錨索的點位施加錨索預張拉力，考慮了可能發生的多種荷載工況組合，並與無預應力閘墩結構進行了對比分析研究，指出其預應力效果是明顯的，可以大大改善閘墩結構的受力狀態，通過三維有限元分析，還得到了胸墻簡支、固端不同情況下的應力成果和各荷載下的位移成果，這些成果的取得對預應力閘墩的設計具有一定的指導和參考價值。
  8. Using the modified method, 6 kinds of tl topologies of single - switch converter are obtained. the deep research reveals that these tl topologies can have less value of the inductor by using interleaving modulation strategy compared with conventional modulation strategy on the condition that the current ripple of the inductor are the same. some drawbacks such as high voltage stress, difficulty of realizing soft - switching, and magnetic aberration were presented in the conventional push - pull converter

    對基本方法進行改進，提出了適合6種單管直流變換器的三電平拓撲變換方法，成功地得到了其三電平拓撲，開關管的電壓應力降為原來的一半；經過對這些三電平拓撲控制策略的深入研究，詳細論述了交錯開關方式可以最大幅度地減小電感的電流脈動，從而可以在電流脈動要求相同的情況下減小電感的設計值。
  9. Influence of soil body behind the abutment stress distribution and stress carry - over length due to different coefficient of friction is analysised, through the experimental results and the space finite element analysis results of the model, actual measurement results tally with the computing results well. ( 4 ) new type semi - integral abutment bridge is from optimization design of conventional abutment bridge - dashuiting middle bridge. not only bridge at both ends

    分析了不同摩阻系數對臺後土體應力分佈和應力傳遞長度的影響，並對試驗結果和有限元分析進行了對比，實測結果和計算結果吻合良好; （ 4 ）將有縫橋-大水町中橋優化設計為新型半整體式無縫橋，橋梁兩端均不設伸縮縫，路面也不設任何接縫。
  10. Abstract : fatigue cracks in ship hull structures are most likely to occur in the highly stressed structural details. the conventional fatigue analysis is largely dependent on the determination of stress concentration factors ( scfs ) at the locations considered. this paper is concerned with the stress concentration of cutout in transverse web for longitudinal stiffener. a series of finite element models is carried out for the stress analysis of predefined structural details. the tabulated scfs of typical cutouts ( abs tanker rules ) in transverse web for longitudinal stiffeners are presented based on the finite element analysis ( fea ) results

    文摘:疲勞裂紋往往發生在船舶結構的局部高應力區，而疲勞分析結果通常取決于任何準確確定結構的應力集中系數.本文研究為鋪設縱骨而在艙壁板上開孔的應力集中，採用有限元方法對預先給定的結構進行應力分析，基於有限元計算結果給出了艙壁板典型開孔（參見abs油船規范）的應力集中系數表
  11. With the best modulation strategy which was found on condition that it must have largest energy transfer ratio, smallest current ripple of the inductor, and realizing zvs of each switches, the converter overcomes the drawbacks presented by the conventional zvs fb converter, such as high voltage stress of each switches, large current ripple of the inductor, and severe parasitic ringing on the rectifier diodes, so it can get higher efficiency, faster respond speed, and wider application area. the operation principle of the proposed converter is analyzed and verified by a 3kw, 50khz experimental prototype. experiments and research results show that the scheme of the tl topology derivation is reasonable, adjusted modulation strategy makes some other severe problems in conventional topologies easy to solve or makes the converter more competitive

    研究結果表明，本文提出的三電平拓撲變換方案合理，針對各種三電平拓撲尋找到的控制策略可以解決變換器存在的某些問題或使變換器表現出更突出的優勢：例如針對單管直流變換器三電平拓撲的控制策略可以減小電感的設計值，針對推挽直流變換器三電平拓撲的控制策略可以實現開關管的軟開關、解決變壓器偏磁問題等，針對全橋直流變換器三電平拓撲的控制策略可以減小電感的設計值、實現開關管的軟開關等。
  12. In order to study the thermal performance and residual stress of microelectronic subassembly, in this paper, a newly optical interferometry method for 3 - d displacement measurement is developed based on wavefront interference theory. in which the moire interferometry provide the in - plane displacement, but the system is different from the conventional interferometry, the system applies the double diffraction of the specimen grating, the in - plane displacement sensitivity is a factor of 2 higher than that of the conventional moire interferometer. twyman / green interferometry method for out - of - plane displacement measurement is adapted, the advantages of the optical set - up are structure novelty, and the fringe patterns of the displacement fields shown high contrast and spatial resolution

    為了詳細研究試件的熱變形特徵以及殘余應力的影響作用，本文在波前干涉理論的基礎上，設計了一新型三維光學測試系統，該系統的平面位移測試基於雲紋干涉方法，但採用與普通雲紋干涉不同的光路系統，利用試件光柵和平面反射鏡組形成的兩次衍射，使平面位移干涉條紋倍增，測量靈敏度是普通雲紋干涉的2倍，系統的離面位移場測試採用泰曼格林干涉光路。
  13. Using biomechanics methods, through the study of the influence of different injection and maintain period on the expansion efficacy and shrinkage rate of skin, a rapid expansion method with relatively big expansion area is proposed ; biomechanics analysis in vivo is been made on the expanded skin ; comparing the biomechanics property in vitro of the rapid expansion and conventional expansion with different maintaining times, the parameters such as strength, stress - strain relationship, stress relaxation and creep which reflect the characteristic of the expanded skin have been obtained ; making the research of the expanded skin ' s biomechanics changes at different stage after grafting, the long - term and short term diversified regular has been obtained ; making experimental study and discussing the changes in the microcirculation and vessel structure of exceedingly expanded shin, the relationship between survival length of flap and the changes has been gotten

    本課題旨在用生物力學的方法通過動物實驗來研究不同注水擴張期和維持擴張期對皮膚擴張量和皮膚回縮的影響，探討有效獲取較大的擴張皮膚面積的快速擴張方法；對擴張皮膚進行在體生物力學特性分析；比較了快速擴張和常規擴張在不同維持期的皮膚離體生物力學特性，得到離體生物力學各參數，如強度、應力?應變、應力鬆弛、蠕變等；為全面了解擴張皮膚在移植后的近期和遠期的變化規律，做了擴張皮膚移植后不同階段的生物力學變化的實驗研究；探討了不同擴張量時皮膚的微循環變化和血管結構變化與皮瓣存活的關系。
  14. To be the wall material of gtdw, comparing with the conventional concrete diaphragm wall, plastic concrete has a much lower elastomeric modulus that approaches to that of the around soil. as a result, the deformation of the plastic concrete diaphragm wall under pressure will be similar with that of the around stratums. the stress state of the iii diaphragm wall is greatly improved and thus improvement will make it easy for the diaphragm wall to fit the stress changes by the thinner of wall or the frequent changes of the water level

    塑性混凝土作為抓鬥薄墻的墻體材料，相比于普通混凝土彈性模量顯著降低，使其更接近於圍土材料的變形模量，所以塑性混凝土防滲墻在其受力后的變形能很好地于周圍地層相協調，因而能大大改善防滲墻的應力狀況，更好地適應墻體變薄及長江水位頻繁變化而帶來的應力變化。
  15. Three new conceptions of rice breeding in the future are introduced briefly : from conventional breeding to rice variety design ; discovery and exploitation of " hidden " genetic diversity for improvement of abiotic stress tolerances ; rear green rice

    摘要簡要介紹了未來水稻育種的三種新理念：從常規育種到品種設計；隱藏基因的發掘與提高非生物抗性；培育綠色水稻。
  16. In contrast to conventional procedures, the present method assumes the normal stresses associated with the action of anchorage is approximated by the analytical stress distribution corresponding to an infinite wedge with concentrated force at the apex

    應用無限楔體受集中力作用的彈性力學解答計算與錨固力對應的滑面正應力分佈，將其與錨固前滑面正應力疊加。
  17. Some useful results were found after those. firstly, the softening and dilatancy characteristics of qi loess stress - strain were found by means of conventional tri - axial tests

    通過研究，本文主要取得了如下一些有益的成果：首先，通過常規三軸試驗揭示了q1黃土的應力應變軟化和剪脹特性。
  18. At present, limit equilibrium method is one of the conventional slope stability analysis methods. it ca n ' t consider nonuniformity of mechanical characteristic of landslide body and its rock bed and the effect of stress distribution on the gilding surfaces, since the rigid body assumption is adopted in this method. furthermore, this method ca n ' t accurately consider inactive forces between slices

    目前常用的邊坡穩定分析方法中的極限平衡法由於採用了剛體假定，無法考慮塌滑體及其基巖力學特性的不均勻性和滑動面上應力分佈的影響，此外還不能準確考慮條塊間的作用力，而另一種常用的邊坡穩定分析方法? ?常規有限元分析方法，當滑動面全部處于屈服狀態或邊坡的實際抗滑穩定安全系數小於1時無法求解。
  19. In the conventional stress - strain analysis of finite element method ( fem ), the boundary of concrete - faced rockfill dam ( cfrd ) is treated as complete constraint. so it can not calculate the deformation of the peripheral joint

    以往面板堆石壩有限元應力應變分析中的堆石體邊界按照全約束處理，計算出面板的周邊縫變形很小。
  20. Field application and appraisal result show that the deliverability given by this new method is 10 % ~ 25 % lower than that by the conventional method, but comparable with that by pressure - squared method without regard to the stress sensitivity

    結合幾口超高壓氣並的實際產能測試數據，進行了實例應用並對產能評價結果進行了分析。
分享友人
分享到 Line

分享到臉書