薄壁模型 的英文怎麼說
中文拼音 [bóbìmóxíng]
薄壁模型
英文
thin-skin model-
In the paper, the finite element simulation software dynafrom is applied to analyze the affect of different blank holder during the forming process of laminose stepped tubular part, predict the possible defects such as wrinkle and break, obtain the rational style of blank holder avoiding the occur of defects and determine the rational configuration of die. the forming affect of thin - wall shallow stepped tubular part is analyzed when using different lubricate condition ( friction coefficient ). by this method, the relationship between friction coefficient and drawing depth of laminose stepped tubular part is obtained
本文利用有限元模擬軟體dynafrom分析了不同類型的壓邊圈對薄壁階梯筒形件成形過程的影響規律,預測了採用不同類型壓邊圈時可能出現的成形缺陷如起皺和拉裂,獲得了防止缺陷產生的合理壓邊圈形式,確定了合理的模具結構形式;分析了不同的潤滑條件(摩擦系數)對薄板階梯筒形件成形的影響,獲得摩擦系數與薄板階梯筒形件的拉深深度的關系;分析了階梯筒形件成形過程中的不同階段的應力應變分佈、毛坯材料厚度變化情況,並獲得了階梯階梯筒形件能一次拉深成形的條件。The pouring tests of the ladder foam sample were made in silica sand, chromite sand and zircon sand the results show that zircon sand and chromite sand have the better chilling effect, and the structure of the aluminum alloy is finer, the hardness and strength has large improvement, subsequently the investigation provides the reference for manufacturing aluminum alloy thin thickness mold with excellent quality
結果表明,鋯英砂和鉻鐵礦砂具有較好的激冷效果,得到的鋁合金鑄件組織細小,強度、硬度有較大的提高,為薄壁隨型、質量優異的鋁合金消失模模具製造提供了技術依據。An effective simulation method for aluminum profile extrusion process
薄壁鋁型材擠壓成形的一種有效模擬方法The tests were conducted in the hypersonic low density wind tunnel at nominal test conditions of mach 16, stagnation temperature 923k, stagnation pressure 1. 40mpa and 7. 30mpa. heat - transfer data were obtained on a hemisphere model, a sharp cone and a big blunt cone respectively by means of infrared thermal mapping techniques, that of a 0. 5mm thickness blunt cone by virtues of thermocouples. furth ermore, heat - transfer on all those models was calculated with the theoretical method
最後在名義m _ = 16 、 t _ 0 = 923k 、 p _ 0 = 1 . 40mpa及7 . 30mpa的高超聲速低密度風洞中,利用紅外熱圖技術獲得了半球圓柱、尖錐、大鈍頭三個模型表面熱流分佈,利用薄壁法技術得到了一壁厚為0 . 5mm的鈍錐模型表面的熱流分佈,並通過工程理論方法計算了模型表面的氣動熱,把理論計算結果與上述試驗結果比較,幾者符合得較好。Based on the micromagnetic model of the sm ( cocufezr ) z thin films presented in this thesis, the pining field has been computed with different physical parameters of the cell boundary phase
本文首先建立了sm ( co , cu , fe , zr ) z薄膜疇壁釘扎的二維微磁學模型,研究了胞壁相的厚度和磁晶各向異性常數對疇壁釘扎的影響。Finite member element model for lateral buckling of thin - walled members
薄壁桿側向穩定分析有限桿元模型The research object in this text is the actual project - - the mansion of yatingyuan ( 40 layers above the ground, 125. 4 meter high ). the structure - design is by satwe and the analysis of the structure dynamic characteristic and earthquake response by sap2000, whose calculation models are set up according to the actual size of the structure. in satwe, the analysis model of beam and column is simulated by frame - element, slab is plane - element, shear - wall is wall - element and slab is infinitely rigid in the internal and zero in the external ; in sap2000, beam and column is frame - element, slab and shear - wall is shell - element and slab is elastic floor
本文以實際工程項目? ?雅庭園商業中心大廈(地面以上40層,建築總高度為125 . 4米)為研究對象,結構設計採用satwe ,結構的動力特性和地震反應分析採用sap2000 。結構satwe和sap2000分析的計算模型均按結構的實際尺寸建立, satwe分析模型的樑柱採用桿元模擬,樓板用薄壁殼元模擬和剪力墻用墻元模擬,樓板平面內無限剛、平面外剛度為零; sap2000分析模型的樑柱採用桿元模擬,樓板和剪力墻用殼元模擬,樓板為彈性板。X - ray diffraction results revealed that the structure of as - deposited smco film was amorphous and crystallization happened after the films annealed at 500 in vacuum. the magnetic tests of smco thin films showed that its coercivity reduced with the increase of film ' s thickness while the ratio of mr / ms was opposite. the films " coercivity and mr / ms declined after it annealed at 500 because the machanism of magnetization were changed from domain wall nailing into magnetic nuclear forming
研究結果表明,由於雜質fe的摻入降低了smco薄膜的磁性能;制備態smco薄膜為非晶態結構,矯頑力hc隨著薄膜厚度的增加而減小,剩磁比mr ms隨膜厚增加而增加;經過500真空退火熱處理后,薄膜出現smcos的結晶物,矯頑力hc降低, mr ms減小,磁化機制由疇壁釘扎類模型轉為形核類模型。On the base the damage models of concrete and analysis methods of horizontal loading capacity of pile are introduced. using the method mentioned above thin - wall cylinder piles of the out - gate the engineering in east punan shanghai are analyzed, and comparing with testing results it is prove that calculation results are reasonable
在此基礎上引入了混凝土的損傷模型,提出了樁的水平承載力的分析方法,並利用該方法對上海浦南東片出海閘導流堤採用的薄壁筒樁進行了水平變力逐步加載分析,並與試驗結果進行比較,驗證了分析結果的合理性。Local buckling is an important buckling mode of thin - walled and cold - formed steel columns, and the interactive behavior of component plate elements cannot be ignored
局部屈曲是冷彎薄壁型鋼構件主要的屈曲模式,屈曲時板件之間的相關作用也是不容忽視的。With the using of the thin - walled structure fem theory, the fem model is set up, which can reflects the distortion characteristic and stress distributing rule. also, with the consideration of the configuration characteristics of the miter gate, the parameterized method of pre - process and post - process is studied and the fem calculations subsystem is developed. furthermore, this paper cites an example to illustrate the analysis and calculation of a miter gate
4 、運用空間薄壁結構有限元理論,建立了能真實模擬人字門運行過程變形和應力規律的空間薄壁結構有限元數學模型;根據人字門的結構特點,研究了人字門參數化前後處理技術,開發了人字門空間有限元分析子系統,並進行了工程實例的有限元分析計算。In the paper, by fractional - dimension space model, the relationships between system dimensions and wells width in zno / mgzno quantum well will be studied and the exciton dynamics such as wave functions, radial intensity and bohr radius in zno / mgzno with different well width are studied firstly. secondly, the system dimension, exciton wave functions and absorption spectrum in hexagonal microtube zno film were calculated and simulated, and the confinement of microtube is discussed. then the hexagonal microtube zno films are investigated by capacitance - voltage ( c - v ) measurements and the structure of zno / si were analyzed and modeled
本文利用分數維空間模型,首先研究了zno / mgzno量子阱中系統維度、激子波函數、徑向密度和波爾半徑隨阱寬的變化,從中反映了zno / mgzno量子阱中量子尺寸效應對激子態的影響;其次計算和模擬得到六棱微管zno薄膜的系統維度、激子波函數及吸收譜,討論了微管壁厚對激子的限制情況。In the paper, the method of equivalent stress is adopted to confirm the outside force of the truss model, and the factor of the angle of inclined column is considered. a design method of the wall was suggested
採用等效應力法確定了桁架模型的外力,即薄壁柱傳來的荷載,其中考慮了斜柱的傾角以及反映薄壁柱與轉換梁共同作用的薄壁柱端部塑性發展系數的影響。Finite element model for spatial thin - walled composite beams
復合材料空間薄壁梁的有限元分析模型A limit analysis model for laterally loaded large - diameter cylinder embedded in soft clay
軟粘土中插入式大直徑薄壁圓筒結構的一種極限狀態分析模型As one of several strength - governing modes, distortional buckling is receiving more attentions
作為控製冷彎薄壁型鋼承載能力的幾種屈曲模式之一,畸變屈曲正逐步受到重視。Because of cold formed thin - walled light steel structure ' s special construction, if draws the mechanics model according to the rigid connection frame, that will be over - evaluated the bearing capacity of the structure ; and if draws mechanics model according to the pinned connection frame, when the foot also adopts this kind of structural form according to the frame connections, that will form organization, and the calculation will be unable to go on
由於冷彎薄壁輕鋼龍骨結構體系的特殊構造,如果按節點剛接的框架提取力學模型,將高估結構的承載能力;而如果按節點鉸接的排架提取力學模型,當柱腳也採用此種構造形式時,又會形成機構,使計算無法進行。This paper is the research on the local interactive buckling behavior of cold - formed rectangular tube under uniform compression. the paper includes the following main contents : ( 1 ) an elastic interactive buckling model is presented on the basis of the theory of elastic plates. under the equilibrium condition and deformation compatibility condition, analytical expressions are derived to predict the interactive bucking load pcr
本文主要研究冷彎薄壁矩形鋼管均勻受壓下板組的相關關系,包括以下主要內容: ( 1 )建立了彈性相關屈曲解析法分析模型,考慮平衡條件及變形協調條件,建立板組的屈曲微分方程,得出了板組相關屈曲的臨界荷載p _ ( cr )的計算行列式。Abstract : many factors affecting laminal airtight vessel life have, this complex , uncertain and changeable characteristics method of dynamic two - grade fuzzy comprehensive decision is introduced to estimate the vessel life, the mathematical model and process of the decision are established
文摘:針對影響薄壁密封容器壽命的許多因素具有復雜性、非確定性以及時變性的特點,提出了用動態二級模糊綜合評判的方法對其壽命進行評估,建立了評估的數學模型和評估流程。Taking the long span continuous rigid - frame structure of the south bank approach spans of wuhan tianxingzhou changjiang river bridge as the research object, and using the large scale finite element analysis program ansys and two ways of modeling with solid element and spatial beam element, this paper respectively analyzes the dynamic characteristics of the rigid - frame structure of the approach spans, makes a study of the influences of rigidity changes and bearings failure of the thin - wall piers on the dynamic characteristics of the structure of the approach spans and also compares the results of numerical analysis of the two kinds of modeling
摘要以武漢天興洲長江大橋南岸引橋大跨度連續剛構為研究對象,運用大型有限元分析程序ansys ,採用實體模型與空間梁單元兩種建模方式,分別分析了其動力特性,探討了薄壁墩的剛度變化與支座失效對其動力性能的影響,並對兩種模型的數值分析結果進行了比較。分享友人