拉模壓力 的英文怎麼說
中文拼音 [lāmóyālì]
拉模壓力
英文
die pressure-
The best optimum mathematical model is constituted. scalar factor of structural parameter on loop rectangular negative pressure and adsorption slide is calculated. structural parameter, air gas source pressure carrying capacity and thickness of air cell are made sure by hydrodynamics and the theory of gas lubrication
詳細論述了導軌副的設計過程,運用數學上的拉格朗日條件極值求解法,建立最優化數學模型,求出環矩形負壓吸附導軌的結構參數的比例情況,並運用流體力學和氣體潤滑理論確定了環矩形負壓吸附導軌的結構參數、氣源氣壓、承載能力和氣膜厚度的確定性結論。So it is impossible for enstatite to decompose to oxides between 50 to 140gpa. ( 5 ) the bulk modulus k0s and its first derivative of pressure k0s " were calculated from the experimental hugoniot data, by using eularian limit strain theory
3 )根據本文頑火輝石hugoniot實驗數據(結合前人的實驗數據l用歐拉有限應變理論計算得到的頑火輝石零壓炸彈性模量及其對壓力的一階導數為: k叮一266gpa , k ; ,二4The plane - wave analytic solution of the coupled fluid - air - solid system and the fem model of air cushion isolations are applied to study the influence of air cushion on earthquake response of dams. the calculations show that air isolation will reduce the hydrodynamic pressure significantly and restrain the dam vibrations during earthquakes. if the dam and reservoir is isolated by air cushions, it will decrease the hydrodynamic pressures by more than 90 % and the seismic stresses by 20 - 30 %
將本文首次提出的水體-氣體-結構系統的平面波作用理論解和三維有限元模型,應用於溪洛渡雙曲拱壩的抗震安全性和氣幕隔震可行性研究中,表明氣幕對高拱壩具有良好的隔震性能,可降低動水壓力90以上,壩體地震拱應力20 30 ,減震效果顯著,並使壩體的抗拉安全系數從0 . 93提高到3 . 58 。Firstly, for the system of moulding board and support frame in construction the side pressure and screws are analyzed. the material and structure form of support frame are discussed. the design of support frame uses the method of limited state, and also it analyses the integer stability, part stability, and single stability, and then proposes the load analysis of multi - level support frame
首先,針對轉換層梁模體系及支撐架施工,重點分析了轉換層結構現澆混凝土對模板側壓力值及模板對拉螺桿的計算;討論了轉換層支撐體系的形式及構造,詳細論述了基於極限狀態設計的支撐架計算方法,包括縱橫向水平桿的強度驗算、立桿的整體穩定性、局部穩定性、單肢桿件穩定性等驗算,並提出了多層支撐架的施工荷載計算方法。Combined with the full scale models tested in - situ of prestressed concrete penstock with double circle unbonded strands and single circle bonded strands of xiaolangdi multipurpose dam project of yellow river, the advantages and disadvantages of two different prestressed systems are analyzed, the concrete stress distributions of the prestressed concrete penstock are induced and summarized during the whole tensioning strands stage. the consistence among the test results, the theory calculating and the three dimensional finite element analysis is proved. therefore, the theoretical method of prestressed concrete penstock is feasible
結合黃河小浪底水利樞紐工程在施工現場進行的採用雙層雙圈環形無粘結預應力鋼絞線和單圈有粘結預應力鋼絞線對排沙洞襯砌混凝土施加預應力的1 : 1模型試驗,對比分析了兩種后張預應力施工體系的優劣,歸納總結了預應力筋束張拉過程中預應力混凝土壓力管道結構管壁混凝土的內力分佈規律,驗證了模型試驗實測數據、理論計算和三維有限元分析結果的一致性,確定了預應力混凝土壓力管道理論計算方法的可行性。Abstract : this paper analysed the kinematic properties of ball joint hi nged on the piston rod and steering drag link of a separated assistant steering m echanism, and the equations of the path and mathematical model of pressure angle were established
文摘:分析了分置式轉向助力機構的液壓缸活塞桿與轉向直拉桿相鉸接的球頭銷的運動特性,建立了其軌跡方程及壓力角的數學模型。Through theoretical analyses in the article, the highly tough top - coal deflection before destroying is in inverse proportion to elastic mould, in direct proportion to tensile strength, and the conclusion that bigger deflection roof can ' t sufficiently transmit the compressible support to top - coal is drawn
通過理論分析,獲得了高韌性煤層煤體在破壞前的撓度與彈性模量成反比,與抗拉強度成正比的關系,並得出撓度較大的頂板不能很好把支承壓力傳遞給頂煤的結論。We also found that the rheological behavior of single layer gmt is isotropic. temperature and pressure method has great affection on the distribution of the fiber. second, we measure the pressure change under different molding rate and use extensional viscosities model and shear force model to analysis the data
研究表明: gmt材料具有很好的充模流動性,流動過程中纖維氈保持一個整體; gmt材料擠壓流動行為表現為各向同性;溫度、壓力制度對纖維的均勻分佈影響很大: 2 )通過測量不同合模速率下壓力變化,採用拉伸粘度模型( extensionalviscositiesmodel )和純剪切流動模型( shearforcemodel )對數據進行分析,導出了描述gmt材料宏觀行為的流變學參數。This can be of significant benefit to cut down the cost and time limit for a project the program package gone with this paper may realizes the dynamic simulation for all of courses in hoisting, and may synchronously displays the axis force of derrick, the pull - force of the steel wire, obliquity of equipment and overloading instance
這有利於工程實踐中方案變更、施工現場條件復雜多變等的方案驗算,節約成本和縮短工期。本論文程序為桅桿吊裝整個過程實現了動態模擬,顯示桅桿軸向壓力、鋼絲繩拉力、設備傾角和起重超載提示,為安全吊裝設備提供重要的數據,有利於作業過程的全程監控。The analysis in this paper have been verified by experiment firstly, the structure and mechanical characteristics of sliding - plug door are described in this paper. secondly, on the base of the study of the work condition and limited load, the dynamic load - time curve is created. and then the finite element model of sliding - plug door is built by using material equivalent
本文首先總結和探討了塞拉門的結構特點和力學特性;然後探討了塞拉門的極限工況,即列車交會壓力波的作用形式,建立了簡化的作用於塞拉門上的動力學載荷曲線;其次研究了復雜形狀復合材料層合板結構的建模方法,採用物理等效方式減小了計算規模,建立了復合材料門板的有限元模型,並對各種設定的載荷形式進行了數值模擬。Abstract : the sensation of wearing pressure have assessed for knit garments having different sizes and fabrics having the different extensibility, by developing a wearing experimental procedure. at the same time, the objective clothing pressure, the fabric ' s extensibility and the garment ' s fitness have measured. regression analysis showed that the garment ' s fitnessand fabric ' s extensibility had great predictive power for the subjective pressure assessment
文摘:設計了一組服裝用於穿著實驗.對不同尺寸、不同彈性性能的緊身長褲進行了主觀壓力感評價,並測量了服裝壓、衣料的拉伸變形程度和服裝寬裕率.通過分析,選用服裝寬裕率和織物的彈性模量作為指標預測服裝的穿著壓力感The calculated value of shear force model fit well with the experimental results. it means that compare to the tensile stress during squeeze flow the shear stress can be omitted especially when the molding rat e is low and distortion rate is low
拉伸粘度模型的計算結果與實驗結果吻合得相當好表明:在合模速率不大或變形率不是很大的情形下,擠壓流動過程中剪切力相對于拉伸應力可以忽略。The process of rotary stretch bending without lateral compression and with lateral compression is analyzed separately, and the models of the stress distributing in the section and the springback are also presented separately to discuss the relations between pre - stretch force, lateral compression and the amount of springback. numerous experiments had been done on the equipment of ztlw - 8
本文以等邊角型材為研究對象,使用解析法分別對無側壓與側壓轉臺式拉彎成形過程進行研究,建立了成形區截面的應力分佈模型和回彈預測模型,從理論上探討了回彈半徑與預拉力、側壓力的關系。By the net - shape forming technology, metal sheet is used as a blank, the cylindrical cup is produced through blanking, deep drawing, and etc, and then the cup is clamped to a mandrel rotated together with the main spindle, the pulley is finally produced by several different spinning rollers, which apply the radial spinning forces to the cup in different positions
鈑制帶輪是以金屬板料為毛坯,經過落料、拉深等沖壓工序製成圓筒狀,然後將其裝夾在帶有頂壓座的芯模上,使其隨主軸一起旋轉,通過若干不同齒形的旋壓成形輪分別沿徑向施加壓力而成形。In this paper, systematic numerical test have been carried out to study the stability of surrounding rock mass with different distribution of weak interbed, different distance between weak interbed and limit of excavation, different thickness of weak interbed, in the different confining coefficient and representational surrounding rock mass graded ii, iii, iv. all of the numerical modeling is plain - strain type with elastic - plastic constitutive law and mohor - coulomb failure criterion, through the integrated numerical analysis program final. plentiful numerical test results have been drawn via analyse the deformation, tensile stress region, plastic region of surrounding rock and the stress status of shot - crete
大量的工程實踐表明,軟弱夾層對地下洞室圍巖穩定性的影響有著決定性的作用,本文以大型數值模擬分析系統final為平臺,採用彈塑性應力應變關系和m - c屈服準則建立平面應變問題有限元模型,對軟弱夾層的分佈部位、分佈距離、軟弱夾層的厚度對圍巖穩定性的影響以及在具有不同側壓力系數的地應力場中和、 、類代表性圍巖中軟弱夾層對圍巖穩定性的影響進行了系統的數值試驗,研究得出了軟弱夾層對圍巖位移、拉應力區、塑性區以及噴射混凝土層內力等影響豐富的量化成果,以便直接為工程設計人員提供參考。Fenves " 3 - d joint element modei and its constitutive relations are demonstrated and used to simulate the opening, closing and sliding of joints, and the initial pressure and tensile strength at the interface
論述了三維fenves縫單元模型及縫單元的本構關系,可用以模擬橫縫的張開、閉合和滑移,並可考慮縫面的初始壓力和抗拉強度。The main numerical method of this code is coming from scheme ( jameson, schimit and turkel ) : using cell - centered finite volume method as spatial discretization tools, and a system of ordinary differential equations for time variable is obtained, which is solved by utilizing five - step runge - kutta scheme as time marching method, introducing artificial dissipation to damp high frequency oscillations near the shock and stagnation point
本論文採用歐拉方程作為控制方程,利用中心有限體積法進行空間離散,得到對時間變量的常微分方程組,採用龍格庫塔多步法進行時間積分,加入人工粘性以消除激波和駐點附近的壓力振蕩等方法來對naca0012翼型的實際流動進行并行數值模擬。A large quantity of information of geology, test, well logging and earthquake has been well used. basing on comprehensive study and moving analysis, the really geological pattern is selected and the hydro - dynamical field is described using mathematics. and then the hydrodynamic is used to clue, the mathematical model on hydrodynamic fitting to wuerxun and beier depression has been set up
研究中,在正確分析海拉爾盆地水動力背景的前提下,充分利用已有的地質、鉆井、測井、測試及地震資料,立足於綜合研究和動態分析,通過大量基礎地質工作,選擇正確的地質模型,對地下水動力場進行數學描述,以水動力為主線,建立了適合該地區的數學模型:地層埋藏史、古流體壓力孕育史等。The distance from figure center of the parabola to the potential slide surface is less than half of the section length. mechanical conditions of this method include not only force equilibrium but also moment equilibrium. as for the beam - on - foundation, its pressure can be calculated by homogeneous hypothesis or winkler foundation hypothesis or infinite half elastic foundation hypothesis on the pulling anchor - cable step and by coulomb active earth pressure theory approximatively on the long term working step
對于樁在滑面以上段所受的坡體荷載,提出可按形心偏下的拋物線型分佈模式計算,並在滿足力的平衡條件的同時還滿足力矩平衡條件;對于地樑上作用的坡體荷載,提出在錨索張拉階段可按均布或溫克爾( winkler )地基假定或彈性半無限體地基假定來計算,在工作階段則一般可以近似按庫侖主動土壓力理論計算。Primarily, it was a case of weaving dark strands over light areas and light strands over dark areas with the smudge tool ( the smaller the brush and the lower the pressure, the finer the hairs will be ), constantly adding light and dark dots and pixels with burn and dodge, and stretching them out with the smudge tool
首先,這是一件使用模糊工具將亮部、亮線和暗部相互交織的工作(應用比較小的筆刷和比較低的壓力來處理處理精細的頭發是比較好的) ,用減淡工具和加深工具反復的添加亮暗斑點和象素,並用手指工具拉伸他們。分享友人