接觸壓力分佈 的英文怎麼說
中文拼音 [jiēchùyālìfēnbù]
接觸壓力分佈
英文
distributor of contact pressure- 接 : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
- 觸 : Ⅰ動詞1 (接觸) touch; contact 2 (碰; 撞) strike; hit 3 (觸動) touch 4 (感動) move sb ; sti...
- 壓 : 壓構詞成分。
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 接觸 : 1. (交往) come into contact with; get in touch with 2. (沖突) engage 3. (挨上; 碰著) contact; touch
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( 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。In order to make the camber design easier and keep contact pressure equal along rolls, we shall assume the pressure distribution to be quadratic along the width and the marginal deformation to be planar
摘要為了使中厚板軋機輥型設計快捷且保持輥間各點接觸壓力相等,利用了壓力沿板寬方向呈二次分佈、板邊緣處變形為平面變形的計算處理,從而使輥型設計更為方便。Theoretically the varying contact rolling technology can increase the transverse stiffness of loaded roll gap, heighten the control effect of roll bending, improve the distribution of contact force between backup roll and work roll
從理論上分析了變接觸軋制技術在提高承載輥縫橫向剛度、增加彎輥力調控功效、改善輥間接觸壓力分佈方面的作用。Using gap elements to simulate the practical worki n g situation of a piston, a new finite element contact model is proposed both th e stress and deformation of the piston and the pressure distribution between the p iston and the pin are obtained the contact area and the pressure distribution v ary with the stiffness of the pin and the clearance between the piston and the p in
該文使用間隙元模擬活塞的實際工作狀態,提出活塞的有限元接觸模型,不僅可以得到活塞的應力和變形,還可以計算出活塞與活塞銷之間的壓力分佈以及銷的剛度、銷與銷座的間隙變化對接觸區域的大小和壓力分佈的影響Abstract : using gap elements to simulate the practical worki n g situation of a piston, a new finite element contact model is proposed both th e stress and deformation of the piston and the pressure distribution between the p iston and the pin are obtained the contact area and the pressure distribution v ary with the stiffness of the pin and the clearance between the piston and the p in
文摘:該文使用間隙元模擬活塞的實際工作狀態,提出活塞的有限元接觸模型,不僅可以得到活塞的應力和變形,還可以計算出活塞與活塞銷之間的壓力分佈以及銷的剛度、銷與銷座的間隙變化對接觸區域的大小和壓力分佈的影響Firstly, the comparation study between the wedge pressing and the contour forging has shown that the transverse deforming initiated from the surface of the preforms. when the superficies reached the moulding wall, the deforming moved downwards as the high - direction deforming increased, till the moulding chamber was full of stock ; the transverse deforming of the moulding pressing stock initiated from the center of the stock then surned into a drum - type. the distribution of the density and hardness of the high - direction indicated that the wedge pressing acquired a better ability of pressing penetration
首先對比研究了楔形壓制工藝與模壓緻密化工藝,發現楔壓坯料的橫向變形從上表層開始,當上表面與模壁接觸后,隨著高向變形量的增加逐步向下移動,直至坯料充滿模腔;模壓坯料的橫向變形從坯料中間開始,形成鼓形。高向的密度、硬度分佈表明楔壓比模壓具有更好的壓透能力。In order to analysis the contact problem between elasticity roller and rigid plane, another iterative process is raised. supposing the right contact point has been known, the left contact point has to be found and the distribution of stick zone and slip one have to be determined in each iterative process. the outer load is evaluated according to the solved force distribution in contact zone
針對彈性滾柱與剛性平面的穩態滾動接觸問題,採用已知接觸區右端點來搜索接觸區左端點以及區內粘連區、滑移區分佈的迭代搜索方法,並根據搜索得到的接觸區內分佈壓力反求出外部載荷。Proceeding with the support " s force condition is analysed in the static and revolve state, the stress distributions in the contact areas of support and roller are researched by way of hertz theory, the tow - dimensional elastic movement of the contact area is studied by contact mechanics, and the formula and curve of movement regulation are deduced
從回轉窯靜止與運轉時支承的受力情況分析著手,依據赫茲接觸理論對托輪與滾圈接觸區的壓力分佈進行了分析,並用接觸力學方法研究了接觸區的二維彈性滑動,推導出回轉窯軸向下滑計算公式,從而得出回轉窯軸向下滑特性曲線。According to the theory of human physiology, anatomy and biomechanics, the anatomical structure at buttocks and thigh area is analyzed to propose a general criteria on the comfortable body pressure distribution in man - machine interface
摘要針對汽車駕駛人機接觸界面中的乘坐舒適性問題,依據人體生理學、解剖學和生物力學原理,通過對臀部和股區的解剖結構分析,提出了汽車人機界面的舒適體壓分佈的一般準則。The paper puts forward an iterative process to searching for the contacted zone and the distribution of contact force, in the case of the outer loading has been known. the regularization algorithm is used to evaluate the mechanical parameters of the near - boundary points in contact bodies
列出了運用邊界元法解決靜態接觸問題的基本算式,設計了根據已知外部載荷來搜索接觸長度和接觸壓力分佈的迭代搜索方法,運用幾乎奇異積分的正則化演算法,求解了接觸體內近邊界點的力學參量。The stress and working pressure on teeth of the staged nut in screw presses has been studied by fem method which proves that using staged nut in screw presses is helpful for improving the non - uniform distribution of stress and working pressure on the teeth and extending the working life of the screw
摘要採用了有限元法對滑動螺旋壓力機的階梯式螺母進行了受力分析,研究了螺母螺牙應力及螺牙工作面的接觸壓力,並將階梯式螺母與普通螺母進行對比,認為螺旋壓力機中使用階梯式螺母有利於改善螺牙牙根應力軸向應力分佈不均和螺牙工作面的接觸壓力分佈不均的情況,從而提高螺旋工作壽命。By comparing the numerical results of water infiltration with air and without air, it is shown that the method in this paper is more effective for solving problems of water infiltration in unsaturated soil. in this paper the forming process of oil - bearing basin is the main research object and the mathematic model of geology is built, in order to simulate the dynamic forming process of stratums especially oil - bearing stratum in geology history in the time and space concept, further to investigate the history of petroleum forming, transmitting, accumulating and predict the distributing rule and scope of petroleum, and offer an rapid, quantitative, exact, general choice for the researcher of petroleum geology. with denudation, poor - compactness and sedimentation hiatus, the stratum relations of sedimentation section is judged, and the ancient thickness and pressure of stratum layer are recovered by the inversion method of back stripping. the numerical simulation algorithm of recovery of geological history is also given
為了利用現代化的計算技術再現含油氣盆地的地史演化發育過程,以便進一步定量化研究油氣的生成、運移和聚集的歷史以及預測油氣分佈規律、分佈范圍,為石油地質學家提供一個快速、準確、定量、綜合的研究手段,本文就含油氣盆地的地史演化發育過程為主要研究對象,建立了數學地質模型,運用優化理論與演算法,在考慮了剝蝕、欠壓實、沉積間斷等地質現象的情況下,採用回剝反演法,應用鉆井、測井、地震等方法獲得的地層物性資料,判別沉積剖面中地層的接觸關系,恢復地層的古厚度、古壓力,構造了地史恢復的數值模擬方法。The fem results indicated that as to the rough surfaces in sliding contact, the value of the contact pressure was very high which coursed a high value of the heat flow rate, meanwhile the sliding time was not enough for the frictional heat to transfer, thus the highest value of the body temperature occurred just on the sliding surfaces, which possessed a sharp thermal gradient in direction perpendicular to the sliding surface. so the great thermal stress was caused just by the sharp gradient and the thermal elastic distortion with which the contact pressure changed occurred simultaneously, thus this change of the contact pressure would affect the temperature distribution in return
對于相對滑動的粗糙表面,因實際接觸面積小而導致接觸壓力很大,這樣使得熱流密度會很大,同時由於滑動時間很短,熱來不及傳導,最高溫度發生在摩擦表面,在垂直於摩擦面的方向有很大的溫度梯度,使得熱應力很大,且最大應力發生在表面,同時產生熱彈性變形,這種變形使得接觸區域內的壓力分佈發生變化,這種變化又反過來影響了接觸區域的溫度分佈。At first, one kind of finite element model which is more accurate than the union model used before is set up to simulate the mutual contact between head and shell flange well. the stress analysis and measurement of the most typical and common dryers are done, from that the rightness of the calculative model is verified and the stress distribution of dryers under the inner pressure is got
首先建立了一種更為精確地模擬缸蓋與缸體法蘭間相互接觸狀況的烘缸有限元計算模型,對國內最具代表性、最常用的烘缸運用該模型進行應力分析和應力實測,由此驗證計算模型的正確性,同時獲得烘缸在內壓作用下的應力分佈狀況。Thereby, this paper has carried through an in - depth study on wear mechanism between tool joint of drill pipe and casing, problems caused by wear and measures to deal with wear based on researches at home and abroad. the research contents include : in order to reveal mechanism of wear occurred between tool joint and casing, distribution of the contact pressure between the tool joint and casing for different loads was obtained with finite element method. furthermore, the mathematical model of maximum contact pressure and the wear depth on casing was established
所以,本文在國內外研究的基礎上,對鉆桿與套管摩擦磨損的機理、引發的系列問題及其預防措施進行了深入研究,研究內容主要包括:為探討鉆桿接頭與套管摩擦磨損的機理,採用有限元法研究了不同載荷下接頭與套管之間接觸壓力的分佈規律,並建立了最大接觸壓力與磨損量的數學模型。The correctness was testified through experimentation, which verifies that it is an effective analyzing method for continuous extrusion industry application to estimate the load on the extrusion wheel and chamber
根據各分區的變形特點,利用塑性力學理論得出接觸應力的解析表達式,討論連續擠壓變形區接觸應力的分佈特點與規律。On the basis of measured results of contact pressure on abundant literature and the computed results in this paper, simplified contact pressure models have been put forward. the finite element program msc. nastran was selected to analyze the response of pavement under the two modelled loads. the effects of axle load and material properties were studied, and the effects of truck load on permanent deformation and fatigue crack were also discussed
本文首先根據輪胎胎面花紋類型的不同,提出接觸面的簡化模型;然後參考相關輪胎與路面接觸壓力的測試結果,並結合本文的測試結果及輪胎與路面接觸壓力的模擬計算結果,提出接觸面內的壓力分佈模型,即輪胎作用於路表的荷載簡化模型;接著利用有限元軟體msc . nastran對瀝青路面在該荷載模型作用下的響應進行計算分析,還討論了軸載的變化及路面材料參數的變化對路面結構響應的影響,並且對車輛荷載對車轍和疲勞裂縫的影響進行探討。分享友人