曲線縫 的英文怎麼說
中文拼音 [qūxiànféng]
曲線縫
英文
curved slot- 曲 : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 縫 : 縫名詞1. (接合處) seam 2. (縫隙) crack; crevice; fissure; slit
- 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
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For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field
因此,對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此,本文從測井地質的角度,針對當前裂縫性儲層測井地質解釋與評價的現狀,在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上,利用分形分維方法和技術,通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ ( fa )與m指數的理論推導,根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜,則其分維值d _ ( fa )越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵,提出了改進的基於盒維數的測井曲線網格覆蓋法,編程計算了裂縫性儲層段常規測井曲線(如聲波和電阻率曲線)上分形分維值及其m指數值,進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究,效果十分理想: 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪,採用儲層分維值分類技術統計分析這些參數變化的規律,並結合qx油田l區塊儲層類型經驗判別圖版,從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。Study on additional longitudinal forces of jointless track on curved rigid frame bridge
曲線剛構橋上無縫線路附加縱向力理論分析However, single types are difficult in sewing heavy material and more materials once, it ll cause poor stability feeding and much attrition. in order to ensure zig - zag stitch, linking stitch, locking stitch. wemust adopt double type. needle plate and presser foot of double type should be changed together if you want to use double tye istead of single type. the size of their scres and installs are all - purpose
有時為了保證曲折線縫拼縫鎖邊等縫紉要求,就要採用雙長型送布牙,如果要想把單長型改換成雙長型時,必須同時更換雙長型的針板和壓腳,其螺釘和安裝尺寸是通用的First, using strip - partitoning method and programming in matlab language, the numerical caculations of the relation curve between moment and curvature are done for the beams strengthened with non - prestressed and pretressed cfrp sheets, base on the assumption of plane section, non - bonding slip and non - peeled destroy. secondly, nolinear finite elemeant analysis by ansys are done for the beams strengthened with prestressed cfrp sheets base on the three assumptions before mentioned, the analysis are all done for the relation curve between load and displacement, the distribution of material stress, the distribution of cracks. lastly, calculation formula of flexural capacity and deflection are proposed
)的全過程關系曲線。其次基於上面的三個假定,選擇合理的本構關系,利用ansys通用有限元分析程序對預應力碳纖維布加固梁進行非線性有限元分析,分析了加固梁的荷載-撓度關系、材料的應力情況、裂縫的分佈情況等。最後提出了承載力計算公式和正常使用狀態下撓度計算公式。According to the recorded full process fracture curve, the paper calculated and compared the fracture toughness ( kic ), the fracture energy ( gf ) and crack tip opening displacement ( ctod ) of the different strength grade boulder concrete and crushed stone concrete, it is found that the maximal load ( fmax ) and the fracture toughness ( kic ) of boulder concrete and crushed stone concrete increase when the strength of them increases, so does the fracture energy of boulder concrete, but the fracture energy of crushed stone concrete does n ' t obviously increase when it ' s strength increases. the crack tip opening displacement ( ctod ) of all specimens chang less when the strength of concrete increases, so it is concluded that the location of the axle in the ligament of the specimens is relatively stable
根據記錄的全曲線,計算了不同強度等級的卵石混凝土、碎石混凝土的斷裂韌度k _ ( ic ) 、斷裂能g _ f以及裂縫的尖端開口位移ctod ,比較了不同強度等級卵石混凝土及碎石混凝土的斷裂韌度k _ ( ic ) 、斷裂能g _ f以及裂縫的尖端開口位移ctod的關系,發現卵石混凝土、碎石混凝土的荷載峰值fmax 、斷裂韌度k _ ( ic )隨強度增加而增加,卵石混凝土的斷裂能g _ f隨強度增加而呈增加趨勢,碎石混凝土的斷裂能g _ f隨強度增加變化趨勢平直,增勢不明顯。A new waveguide made of changing a wide wall of a rectangular waveguide to a uniform curved wall is called conformal waveguide. a kind of expression of approximate solution for domain mode of the new waveguide, including symmetric, unsymmetric arc, parabolic arch, hyperbolic arch, elliptic arch, etc., is constructed by using boundary condition of mental waveguide, variational method and boundary element method. by using the equivalence principle, an approximate calculating formula for equivalent resonant conductance of a narrow longitudinal halfwavelength slot cut in the curved wall of the unsymmetric arcrectangular waveguide is derived, and the result is shown. although this solution is approximate, it can solve the problem in designing the slotted antenna of such conformal waveguide
把矩形波導一個寬面外突成均勻曲面構成的新波導統稱為共形波導.利用金屬波導邊界條件、變分法、邊界元素法構造這種新波導中主模場的一種近似解表達式,包括曲面橫截線為對稱、非對稱圓弧,拋物線弧,雙曲線弧,橢圓弧等.然後根據等效原理,推導非對稱圓弧矩形波導曲面上窄的縱向半波長縫隙的等效諧振電導的近似計算公式,給出計算曲線.這種解雖然是近似的,但卻能解決這類共形波導縫隙天線的工程設計According to differences of construction process, boundary condition, temperature and stress of two schemes extending 3m deep short seam on upstream face in the middle of rcc overflow section and no short seam are calculated, what " s more, in this paper the equivalent line drawing of stable temperature field and unstable temperature field during construction and operation period and the duration curve drawing of typical points " s temperature and stress are plotted, and the results of peak and minimum on temperature in every month and maximum on tensile stress are attained
根據施工過程和邊界條件,對溢流壩段中間上游面增設3m深短縫和不設短縫兩個方案進行了溫度和應力計算,並繪制出穩定溫度場等值線圖及施工期、運行期非穩定溫度場等值線圖,典型點溫度和應力歷時曲線圖,逐月最高、最低溫度和最大拉應力及相應位置等成果。Based on the 3d geometry vision, using java3d, for each of worktable and sine welding seam part of sheet, the ve modeling experiments achieve the construct of macrostructure, security virtual thickness and virtual guide based on error, and accomplish the space restriction of robot running. via the structured laser sensor ’ s getting three - dimension information, the experiments achieve the modeling of sine welding seam part of sheet by using programming
在立體視覺傳感系統獲得三維信息的基礎上,利用java3d建模技術,分別對工作臺、薄板正弦曲線焊縫工件進行建模實驗,完成了虛擬環境中宏觀環境模型的建立,並根據誤差建立了安全虛擬厚度和虛擬向導,完成了對機器人運動的空間約束;通過結構光傳感器獲得三維信息,編程實現對薄板正弦曲線焊縫模型的建立。A general consensus exists related to the influence of slow crack propagation ahead of the crack tip upon the nonlinearity observed in the typical load - deflection response of the concrete specimen, namely, concrete exhibits somewhat quasibrittle behavior, which has been verified by the inapplicability of the conventional linear elastic fracture mechanics ( lefm ) and fracture models suitable for metal - like materials
現在已經意識到,混凝土在其典型的位移曲線中呈現出的非線性特徵是由於裂縫在端部的緩慢擴展引起的,可以認為是混凝土的一種半脆性性能。這是在發現傳統的線彈性斷裂力學( lefm )和適合金屬類材料的斷裂模型不適用於混凝土研究時得出的結論。At present, there are two kinds of homemade domestic sewing machine s feed dog, single type and double type, when we use single type, it mainly depend the logn teeth on th eleft and presser foo tbottom to fix material. do by presser foot s shape and feed dog, it s more agility and covenient to stitch all kinds of curves and camber lives. therefore, single type have priority to be used to homemade domestic sewing machine ja and jb
目前,國產家用縫紉機的送布牙有單長型和雙長型兩種型式.當用單長型送布牙時,主要依靠左側單排的長與壓腳板"咬住"面料.通過壓腳板的形狀和送布牙牙的配合,對各種彎曲或弧狀線縫的縫紉,就會操作靈活和方便,因此大多數國產家用縫紉機ja型和jb型優先配用單長送布牙Works on the bending roll system of four - roll rolling mill, the workroll shape variation caused by the force of bending roll and the contact stress between rolls was researched with the fem software ansys, the maximum deformation of the work roll was calculated, and the curve of the gap adopting the least - squares method was fitted, which set the base of the further calculation of load - gap shape
摘要以四輥軋機的彎輥系統為研究對象,利用有限元分析軟體ansys研究彎輥力和輥間接觸應力引起工作輥形狀的變化,計算工作輥彎曲的最大變形量,並用最小二乘法對輥縫曲線進行擬合,為進一步計算有載輥縫形狀提供可靠的理論依據。The sew method, through curve method and through curve mesh method are presented to construct the turbine blade surface which is a free 3d surface
提出了縫合法,截面線整體造型法和曲線網格法三種不同的葉身型面造型方法。The reduction factors derived from curve fitting based on calculation results by the finite element program ( ansys ) considering all kinds of damages such as cutouts, corrosion, cracks, denting, initial deflection and residual stress are introduced to modify the effective width of perfect panel in the present paper
本文考慮板中可能存在孔洞、腐蝕、裂縫、局部撞損和初始焊接變形或殘余應力等損傷和初始缺陷,對不同的損傷形式用有限元程序( ansys )進行大量的計算,通過曲線擬合的方法引入折減系數對完好板格的有效寬度進行修正。By the calibration method, reliability index of current maintenance standard for mainline railway cwr in china is analyzed. an important conclusion that reliability index for different curved radius is different and reliability index of small radius curve is lower than big radius curve is reached
對我國干線鐵路無縫線路穩定性的可靠指標進行了校準分析,結果是不同曲線半徑的穩定性可靠指標不均衡,小半徑曲線的可靠指標偏低。At the same time in this paper we analyze nonlinear behavior of masonry through finite element method program and obtain its load when the wall start to crack and when it destroy, the p - u curve and so on. a comparison has been made between the data obtained from the experiment and the calculated through finite element method program so that we can study the cause of crack. in this paper we use finite element method to study concrete ' s character to analyze masonry, satisfactory results have been attained
因此本文在對灰砂磚砌體進行力學性能試驗的基礎上,分析其裂縫產生的破壞模式與開裂機理,並論述了將斷裂力學知識運用於研究砌體裂縫問題的可行性;同時,本文運用有限元方法對結構低周反復加載靜力試驗所做的灰砂磚墻片進行非線性分析計算,得出墻片的開裂荷載、極限荷載、 p ? u曲線,裂縫在墻體上的分佈等,與試驗所得數據對比,以便於研究裂縫的開裂機理,並將研究混凝土的有限元方法運用到對砌體的研究中,取得了較滿意的結果,為類似的試驗分析提供了一條新的思路。The relations between the dummy stress amplitude and fatigue life can be easily developed. and then, the bhw - 35 steel fatigue design curve can be obtained according with asme criterion and bs5500 criterion. compared ~ vith the design curves provided by the asme and bs5500 criterion, the curve got in this paper provides reliable direction for the fatigue design of boiler drum, which used on the altering generating power plant set
將焊縫材料的虛擬應力幅與壽命關系,按照asme和bs5500規范的方法分析得到bhw ? 35鋼疲勞設計曲線,並與asme和bs5500規范中的設計曲線進行比較,為我國調峰機組410t / h鍋爐汽包疲勞設計提供可靠的實際依據。The relationships between the sensitivities of the optical fiber and crack widths at 300, 45, 60 were obtained
得到了在大壩安全監控縫寬控制范圍內光纖與裂縫夾角為30 、 45和60的光纖靈敏性與裂縫寬度關系曲線。The heat transfer and the restriction circumstance are simulated. the temper ature - time curve and the stress - time curve are obtained. because the later joint - filled slots are restrained strongly, in which the thermal stress is great, especially in the corner, in spite of a little temperature rise, some measures should be taken to prevent them from producing cracks
利用有限元前處理軟體vizicad建立了「 t 」形后澆帶模型,模擬了后澆帶的「熱環境」和「約束環境」 ,計算得到了后澆帶的應力和溫度發展曲線,發現雖然後澆帶的溫升不大,但受到的約束較大,因此產生較大的溫度應力,特別是在其拐角處,應採取措施防止裂縫的出現。This bridge was built in 1993. it was found that some problems such as twisting, departure and cracking occurred in 1 # and 4 # parts of curved girder bridge in 2000
該橋於1993年建成, 2000年初發現1 # 、 4 #橋預應力曲線梁橋部分發生側移及轉動現象,部分帽梁和梁底出現裂縫。As soon as the normal section cracks, the crack firstly appears in the flexural region. at this moment, the load - deflection curve has a turning point. with the increase of the load, the rigidity of the beam decreases compared with that before cracking because of the development of cracks in flexural region, and the formation and development of diagonal cracks toward the loading point, the load - deflection curve is basically linear till the beam fails
正截面開裂前,荷載撓度曲線基本為線性,截面剛度較大;正截面開裂時,裂縫先在純彎段出現,荷載撓度曲線出現轉折點,隨著荷載的增加,純彎段正裂縫的發展以及剪跨段斜裂縫的產生並向梁的受壓區加荷點發展,使梁的剛度較截面開裂前減少,荷載撓度曲線也基本為線性直到梁破壞。分享友人