極端變形 的英文怎麼說
中文拼音 [jíduānbiànxíng]
極端變形
英文
extreme deformation-
Their legs were misshapen from their heavy work and all the back-breaking tasks that make up the life of the agricultural labourer.
農事勞動者生活中的繁重工作和極端勞累，使得他們的腿都變成畸形的了。The thesis developed the optimization design software of geometric parameter for the worm gear including strength check module, the drawing contact lines module, the change lines of tooth thickness of worm, and the parametric modelling software for the reducer which includes parametric modelling of parts and assembly. the cad prototype system is very convenient because of its accessible interfere, simple operation and written in chinese. by input design parameters ， the cad system can make optimization design and strength check for the worm gear ， draw contact lines of tooth flank of worm - gear and change line of tooth thickness of worm ， judge if the tooth flanks of worm undercut and if the sideward tooth of worm - gear hob come to a point ， make project design and structure design for the reducer and draw its 2d parts and assembly
研究和開發了平面二次包絡環面蝸桿傳動的參數優化設計和校核軟體系統：包括幾何參數設計計算模塊，強度校核模塊，繪制齒面接觸線模塊，蝸桿齒厚變化曲線模塊和蝸桿根切判別模塊；開發了平面二次包絡環面蝸桿減速器外形與結構尺寸數據庫以及傳動效率數據庫，建立了平面二次包絡環面蝸桿傳動公差及極限偏差數據庫；開發了平面二次包絡環面蝸桿減速器參數化建模軟體：包括零部件的參數化建模模塊和裝配圖的參數化建模模塊，其中零部件的參數化建模包括蝸桿軸系的參數化建模、蝸輪軸系的參數化建模、箱體的參數化建模、端蓋的參數化建模、軸承的參數化建模和其它零部件的參數化建模軟體模塊。Compared with the classical bp algorithm, robust adaptive bp algorithm possesses some advantages as following : ( 1 ) increasing the accuracy of the network training by means of using both the relative and absolute residual to adjust the weight values ; ( 2 ) improve the robustness and the network convergence rate through combining with the robust statistic technique by way of judging the values of the samples " relative residual to establish the energy function so that can suppress the effect on network training because of the samples with high noise disturbances ; ( 3 ) prevent entrapping into the local minima area and obtain the global optimal result owing to setting the learning rate to be the function of the errors and the error gradients when network is trained. the learning rate of the weights update change with the error values of the network adaptively so that can easily get rid of the disadvantage of the classical bp algorithm that is liable to entrap into the local minima areas
與基本bp演算法相比，本文提出的魯棒自適應bp演算法具有以下優點： （ 1 ）與魯棒統計技術相結合，通過訓練樣本相對偏差的大小，確定不同訓練樣本對能量函數的貢獻，來抑制含高噪聲干擾樣本對網路訓練的不良影響，從而增強訓練的魯棒性，提高網路訓練的收斂速度； （ 2 ）採用相對偏差和絕對偏差兩種偏差形式對權值進行調整，提高了網路的訓練精度； （ 3 ）在採用梯度下降演算法對權值進行調整的基礎上，通過將學習速率設為訓練誤差及誤差梯度的特殊函數，使學習速率依賴于網路訓練時誤差瞬時的變化而自適應的改變，從而可以克服基本bp演算法容易陷入局部極小區域的弊端，使訓練過程能夠很快的「跳出」局部極小區域而達到全局最優。The conclusion of reappearing analysis is that crane bridge be used as usual because main weld maximum stress of upper cover plate of main beam lower than yield limit though it higher than permissible stress. inner stress of secondary beam was over ultimate strength, and deforming is ultra big. so it was unfit for produce and secondary beam must be changed
再現分析得出的主要結論為：橋架的主樑上蓋板主焊縫的最大應力超過了許用應力，但小於屈服極限，可以繼續投入使用；副梁內部的應力遠遠超過了強度極限，變形特別嚴重，不能滿足生產要求，因此更換新的副梁；端梁內部的應力超過了屈服極限，小於強度極限，在應力較大的位置焊接補強板；投入使用后，要對整個橋架進行定期檢查。According to elasto - plasticity theory, with the help of finite - method program ansys, the paper undertakes the computer analogue tests about the bearing capacity of pile tip arranged by orthogonal principle, and attains the relations of pile - tip bearing capacity to embedment depth, pile diameter, cohesion, internal friction angle and modulus of deformation. by the means of mathematical statistic, regression equation of the ultimate bearing capacity calculated by finite element method is gained through the regression analysis of 81 group data from the computer analogue tests. by comparison and analysis of the values calculated by finite - element regression equation and the values of in situ loading test, the regression equation is gained which calculates the size effect for base resistance of large diameter pile
根據彈塑性理論，運用大型有限元軟體ansys按正交設計理論對樁端承載力進行模擬計算，獲得樁端承載力與樁長（埋置深度） 、樁徑、粘聚力、內摩擦角及變形模量等主要影響因素的關系，並採用數理統計方法，對81組ansys模擬試驗結果數據進行回歸分析，得到有限元法確定樁端極限承載力的回歸公式，並將有限元法回歸公式計算值與現場小壓板載荷試驗值進行比較分析，得到大直徑樁端阻的尺寸效應系數計算公式。Tow speciments of prestressed fabricated beam - column subassembly were tested under reversed cyclic loading. experimental studies were carried out to investigate the strain distribution, failure mechanism and load - bearing capacity on the beam - column connections, as well as ductility, hysteresis curves energy dissipation, displacement restoring capacity of full pc speciments
本文通過兩榀預壓裝配式樑柱組合體在低周反復荷載下的試驗，了解了預壓裝配式框架梁端截面應變分佈、破壞機理和極限承載能力；探討了全預應力配筋截面延性特徵、滯回性能、耗能能力和變形恢復能力。Author thinks that the direction of the maximum plastic distortion along a constant radius around the crack tip may be considered as the direction of shear - mode fracture ( named pmax - criterion ) and the load when located shear band prongs the ligament in the front of crack tip is regarded as the limited load of shear - mode fracture. ( 3 ) the fad ( fracture assessment diagram ) of titled crack is proposed based on achievements of mesomechanics about i - ii complex ductile fracture of metal, and the titled crack is classified two kinds : void - mode fracture is assessed by fracture assessment curve, and shear - mode fracture by limited load. ( 4 ) using a fe program based on plantle - ressue theory to calculate some mesomechanical parameters, a flange joint structure of a high pressure vessel ( design pressure 31. 4mpa and the thickness of the hemispherical head is half of that of shell. ) is analyzed to determine whether the structure under operation pressure is safe or not, forecast the mode of potential invalidation and argue for the rationality of design of the structure
試件的整體斷裂為剪切型，但在試件芯部裂尖鈍化區中部出現了韌窩型啟裂並有一定的擴展，說明局部較高的應力三軸度也會使韌窩型機制得以發展，但是不改變試件整體的剪切型斷裂模式；對韌性斷裂的剪切模式的細觀機理做了一定的探討，並且提出了含裂紋構件剪切型斷裂的宏觀判據：認為裂紋前方的集中剪切帶中與裂紋尖端等半徑處最大有效塑性應變出現的方向可以作為裂紋剪切斷裂的方向（可簡稱為_ （ pmax ）準則） ，集中剪切滑移帶貫穿裂紋前方承載韌帶時的載荷可以作為極限載荷；本文運用金屬韌性斷裂細觀力學在一復合型韌性斷裂方面的研究成果，採用失效評定圖的形式，提出了傾斜裂紋的安全性評定方法的基本框架。In staged construction process, study is primarily aimed at the truss load resistance capacity and flexural performance under construction and design load, combination performances of steel trusses in conjunction with concrete beam, the vertical displacement difference of two steel trusses with different span and their lateral stability, the glide displacement of the steel truss end during construction, the load resistance performance of steel trusses and concrete structure at the designed load, and the extreme limit loads and the breaking appearance of the combined steel trusses
主要研究了在階段施工過程中，鋼桁架在施工荷載及設計荷載下的受力性能和變形能力；鋼桁架與混凝土梁板的共同工作性能；兩榀不等跨鋼桁架在整體受力下的豎向位移差及其對結構的作用和側向穩定性；鋼桁架端部在施工階段的滑動情況；使用階段鋼桁架及其端部混凝土結構的受力性能；組合鋼桁架結構的極限承載力和破壞形態。The paper made up a flexural experiment with six pieces of composite slab. during the every step of load exerted, the paper recorded the strain of cold - form steel deck and concrete, deflection, crack, slide, ultimate bearing capacity. by changing the thickness of cold - form deck, thickness and strength of concrete, amount of steel stud and other parameters, the paper discussed the behavior of loaded composite - slab
本文進行6塊組合板的抗彎性能試驗，測試各級荷載下壓型鋼板及砼應變、組合板撓度、裂縫、板端滑移、組合板抗彎極限承載力；通過壓型鋼板厚度、砼板厚度、砼強度等級、栓釘數量等幾個參數的變化，探討組合板在荷載作用下的內力、變形情況。The input of traditional ac - dc converter is diode - capacitance combined circuit. it ? input current wave presents pulse shape, and the power factor ( pf ) on ac line side is low
傳統的ac ? dc開關變換器輸入端是二極體整流-濾波電容組合電路，其輸入電流波形呈脈沖狀，交流網側功率因數很低。According to the above formula, the initial rigidity and ultimate moment is calculated by developed program to several kinds of gabled frames end - plate connection joint with different types ( such as end - plate connection horizontally placed, vertically placed and inclinedly placed ), different end - plate thickness, different bolt diameter. the different result is compared with different end - plate thickness, the different force arm in joints, different bolt diameters and strength grades
按推導的公式編程計算了不同形式（端板外伸式、端板平齊式、端板斜接、柱腹板加勁） 、不同端板厚度、不同螺栓直徑的門式剛架樑柱端板節點的初始剛度、節點極限彎矩，並比較了不同端板厚度、不同節點力臂、不同螺栓直徑和強度等級、不同連接形式下初始剛度和極限彎矩的變化。Uniformity and variety are opposite design poles, are thesis and antithesis, the “ creation ” and “ destruction ” of form
一致與變化是兩個相對的設計極端，是論題與相反論題，是形的創造與破壞。The power fluctuation and flow - induced vibration make the fuel assembly and other components deformed cyclically under the lwr operating condition, even failed in the severe cases
反應堆運行時，堆功率的波動和水冷卻介質的流動使燃料組件及其它構件經受不同形式的循環變形，在極端情況下容易出現破損。In this paper, we mainly discuss the topological structure of several classes of special fourth polynomial differential systems with the first and the third critical singular point. as in paper [ l ], mr han yuliang have discussed the system in the first critical case and the system in the third critical case ( where b, a30 0 in system ( l ) and ( 2 ) ) here, we use the tools and method of paper [ l ], to study the system where, 040, b04r - { 0 }, where, 640, ao4r - { 0 }, 631, 622513, b04er for the system ( 3 ) and ( 4 ), because of their only one finite singular points, and they are saddle - nodes, we can easily give the result that there is no limit cycle in their phase portrait
本文主要是研究在第一及第三臨界情形下的幾類特殊四次多項式微分系統的全局拓撲結構，在文獻中，韓玉良主要考慮了第一臨界情形下的系統及第三臨界情形下的系統的全局結構，並畫出它們所有可能的全局相圖， （在（ 1 ） ， （ 2 ）中， b ： a _ （ 30 ） 0 ）本文根據文獻的工具和方法，考慮系統：其中，以及系統其中，這樣，由於等號右端多項式次數的增加，極限環的存在性問題變簡單了，但討論系統的全局結構時，特別是作全局相圖時，難度增大了。In practical application, it is subjected to local plastic strain cycles due to the power fluctuations during reactor operation ; extremely, this power fluctuations could lead fatigue failure
在反應堆運行過程中，堆功率的波動和水冷卻介質的流動會導致燃料元件包殼局部承受反復的循環變形，極端情況下會導致疲勞失效。The underground trend has been around for years, but now that tattoos and piercings are becoming more mainstream, growing numbers of hardcore modifiers are choosing to express themselves in a similarly extreme manner
在美國，極端整形風已悄然存在了好幾年，但當和穿洞等美容方式已經變得十分普及時，越來越多的前衛整形者開始選擇一種近乎極端的方式來表達自己的個性。With the dramatic development of architectural technology and changes of contemporary aesthetic senses, architecture in geometry more and more trends to either extremely basic geometry or gehry ' s complete abandon of linear system and tradition forms
隨著當代社會審美的變化和建築技術的巨大進步，建築在幾何形態上分化也越來趨向于極端的基本幾何形式化或蓋里式的對直線條和傳統造型方式的徹底拋棄。分享友人