有限單元力法 的英文怎麼說
中文拼音 [yǒuxiàndānyuánlìfǎ]
有限單元力法
英文
finite element force method- 有 : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
- 限 : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
- 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...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 有限 : limited; restricted; finite; a little; not much
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In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test
然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討,提出了考慮地基變形的地基承載力上程計算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎設計規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作,本文以截頭錐模型模擬地基,對地基(巖基)承載力的動測法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢測川的參數:針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論;本文作者根據多年現場載荷試驗的工程實踐,對深井荷試驗裝置的核心部分? ?反力裝置,設計了側壁支撐反力加載系統,該加載系統具有實用、簡便、穩定及安個等優點。Abstract : propagation characteristics of r wave in a pavement structures are analysed in this paper. based on the propagation characteristics of r wave, the horizontal propagation wave is simulated by using r wave, the vertical propagation wave is also simulated by using body wave in calculating dynamic response of pavement structures. the availability and accuracy of dispersion curves measured by sasw in pavement structures is analysed by using the presented method used to calculate dynamic response
文摘:利用有限單元法分析了道路結構的r面波傳播特性:在深度方向上衰減較慢,傳播較深,波動性大.提出了在道路結構動力響應計算中,利用面波來模擬水平向傳播波,利用體波來模擬豎直向傳播波.通過算例來驗證該方法的可靠性和精確性,並利用這一動力響應計算方法分析了道路結構表面波測試中所獲彌散曲線的可靠性The main contents are given in this paper as follows : firstly, the chaotic dynamic and the finite element method are introduced
全文主要內容包括:一、混沌動力學與有限單元法的介紹。On the basis of the sprinkler systems " ringed arrangements, fem is used to build mathematic model of sprinkler systems. the mathematic model applies to both the ringer arrangements and the ramiform arrangements. vb6. 0 is used to compile caculation program, and a practical engineering use it to caculate
在自噴系統環狀布置的基礎上,採用有限單元法建立了同時適用與枝狀管網和環狀管網的自噴系統水力計算的數學模型,採用vb6 . 0編寫計算程序,並用該程序對一示例工程進行實際應用。By the check - out, inspection and measurement to start construction the industrial art to this test pile with the examination between stake body mass and bearing power, made sure the stroke reasonable operation method drilling under the dissolved cavern geology term ; the pier foundation loading test expressed the lading and rub the lading that resistance drag a glazing for of relation, and to the borehole cast - in - place concrete pile in the karst terrain deliver with break the mechanism, the characteristic of bearing power, proceeding the spot test job of the full of result ; the test data expresses the stake side friction resistance to rises with a bat batch terminal friction resistance very important function, the of tip of pile resistance drag occupies the proportion very few
通過對本次試樁施工工藝的檢測和樁身質量及承載力的檢驗,確定了沖擊鉆在溶洞地質條件下的合理使用方法;基樁承載實驗表明了荷載與摩擦阻力之間的關系,並對巖溶地區的嵌巖灌注樁的荷載傳遞和破壞機理、承載力特性,進行了富有成果的現場測試工作;試驗數據表明樁側摩阻和支盤端阻起很重要的作用,樁端阻力所佔比例甚少。這與設計樁基時的計算模式相差很大,承載力也較設計增加;使用力學數值分析方法和有限單元法,對鉆孔灌注樁樁端下的巖體強度和結構穩定性方面進行模擬計算和定量研究。In this thesis, studies are focused on as follows : ( 1 ) based on analyzing the general transfer - matrix, the conception of the generalized double layer soil model is proposed, and the transfer - matrix ( r ) of half - infinite elastic mass is introduce - d to the analytic expressions of stress and settlement under the uniform circular, rectangular and strip vertical loads in multi - layered soil ; ( 2 ) according to the analytic expressions of the additional stress and settlement under unifo - rm circular in multi - layered soil, rectangular and strip vertical loads, the programs are develop - ed to resolve and debugged. the results show that the programs are correct ; ( 3 ) through calculating the coefficient of additional stress on the central axis of uniform circ - ular vertical loads, under the corner point of the uniform rectangular vertical loads, and on the central axis of uniform strip vertical loads, and the settlement on the center of uniform circular vertical loads and uniform rectangular loads in double - layered soil, the characters of stress and settlement are discussed ; ( 4 ) a case, as an example, is studied with different calculation methods, such as traditional theory, fem. the results obtained are compared
本文在已有研究成果的基礎上進一步開展了以下幾方面的研究: ( 1 )在對層狀地基傳遞矩陣法中的總傳遞矩陣分析的基礎上,提出了廣義雙層地基模型的概念,並把半無限體的傳遞矩陣r引入到多層地基在圓形垂直均布荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式中; ( 2 )根據多層地基在圓形荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式,編制了程序,調試通過並驗證了其正確性; ( 3 )通過對雙層地基圓形垂直均布荷載中心軸線上的附加應力系數和荷載中心沉降,矩形垂直均布荷載角點下的附加應力系數和荷載角點沉降及條形垂直均布荷載中心軸線上的附加應力系數進行的計算,探討了雙層地基中的附加應力與沉降特性; ( 4 )應用本文的層狀地基體系理論對一個工程實例進行了計算分析,並與傳統的計算方法的計算結果和有限單元方法的計算結果進行了對比分析,結果表明利用層狀地基理論計算更能反映地基中附加應力分佈的實際情況。Consequently, on the basis of non - winkler foundation model, a finite - element method that utilizes foundation flexibility matrix into iterative calculation is proposed in this paper originated from the item " the optimal design theory and research of pile capping beam " sponsored by natural science fund of hunan province, which the continuity of soil mass can be accounted for under various boundary conditions, different loadings and irregular beam characters
本文結合湖南省自然科學基金項目「樁基承臺梁優化設計理論與方法研究」 ,針對非文克爾地基(半空間、線性變形層或單向壓縮層地基模型等)上的樁基承臺梁,提出一種利用地基柔度矩陣來進行迭代的有限單元法,可充分考慮梁下土體的連續性,並對基礎與土體脫開、承臺梁截面變化、梁體邊界條件復雜、上部荷載類型變化以及梁下基樁承載力差異等情況進行分析計算。A 3 - d simulative calculation program concerning temperature field and creep stress field and its pre - processing and post - processing has been developed. by applying this program, temperature field and creep stress field of hydraulic culvert and sluice engineer concrete is simulated. 2
開發了非穩定溫度場和應力模擬計算的三維有限元計算程序及有限單元法的前後處理程序,運用此程序對水工涵閘工程混凝土進行了溫度場和應力場的計算分析,得出相關結論。In this paper, the state of the art of the engineering controlled explosion and the finite element method ( fem ) are reviewed. in order to analyze and simulate the demolishment of frame - structured buildings due to controlled blasting, the method of killing or activating elements, a high level technique in fem, and the special element - solid65 are introduced to the blasting field first in china by the author
本文回顧和總結了工程式控制制爆破和有限單元法的發展歷史及其研究現狀,在國內首次把單元生死法這一有限元高級處理技術和ansys軟體中特有的solid65單元引入到爆破拆除工程領域,用其進行框架結構樓房爆破拆除的計算機模擬,探討了構件在完全破壞前的應力、應變、裂縫生成和塑性鉸形成位置。The method, based on the finite element theory, force - method theory, increment method and middle stiffness method, making use of the increment of curvature of the section, works out the increment of load applying and is proved in this thesis
接著,本文根據有限單元和力法原理、增量法及中點剛度理論,提出了本文暫且命名為曲率力法的非線性分析方法。該方法通過增加截面的曲率來反求框架外加荷載的增量,並在文中以試驗的框架模型為例,給出了整個推導過程。Firstly, this paper analyzes the distribution of pile - top counter force, pile - end resistance and additional stress of the substratum influenced by raft rigidity in different loads and piles length. it proves the internal forces of foundations distribute unevenly
本文首先採用有限單元法分析了不同荷載形式,不同樁長條件下筏板剛度對樁頂反力、樁端阻力和下臥層附加應力等的影響。On the basis of the primary concepts of thermal conduction and thermal physical property of concrete material, the distributions of temperature in concrete structures are discussed in this thesis, the causes resulting in temperature - effected deformation and internal forces in the elements of the structures are analyzed. moreover, the practical approaches, such as continuous method, iteration method, finite element method, are suggested to calculate the deformations and internal forces above
本文從混凝土的熱物理特性和熱傳導的基本概念出發,討論了混凝土結構中的溫度分佈規律,分析了高層建築結構中溫度變形和溫度內力產生的原因,並介紹了高層建築結構中溫度變形和溫度內力計算的實用方法,包括連續化法,迭代法及有限單元法。Based on the heat conduction theory, the fea theoretical formulas of temperature field and thermal stress are deduced in this paper
本論文從熱傳導理論出發,推導出溫度場和溫度應力的有限單元法理論公式。Secondly, in view of the limitation and shortage of traditional simulation of finite element approaches for bolt, a new composite grouted bolt element including nonlinear contacting relation will be built based on the above study of the mechanics mechanism of fully grouted bolt. then, an elastic - plastic finite element program will be developed for the analyses of tunnel stability, in which the composite grouted bolt element and nonlinear finite element analysis method will be used ; the patterns and the affect of main design parameters on the support effect of bolt will be analysed using the program, and conclusions of guidance importance for tunnel support design will be drawn. finally, simulation compution for the excavation and support of a highway tunnel will be made out using the above production, and the method of application of the program will be discussed ; analysis of the deformation, stress and distribution of plastic range will be done, and rational support plan will be worked out, which is of guidance importance for tunnel support design and the thery and technique of fully grouted bolt used in tunneling will be perfected further
首先,本文在綜合分析隧道穩定性影響因素及失穩破壞模式的基礎上,對全長粘結式砂漿錨桿作用力學機理進行了深入研究,為全長粘結式砂漿錨桿的有限元模擬分析奠定了基礎;其次,針對傳統錨桿有限元模擬方法的局限性與不足,在上述全長粘結式砂漿錨桿作用力學機理研究基礎上,建立出能反映界面非線性粘結的新型復合砂漿錨桿有限單元模型;然後,運用上述復合砂漿錨桿單元模型,引進非線性有限元分析手段,開發了隧道支護穩定性分析的有限元程序,並就全長粘結式砂漿錨桿的型式與設計參數對支護效果的影響進行了深入探討,得到了對隧道支護設計具有指導意義的結論;最後,運用本文研究成果對某公路隧道工程實例進行了開挖與支護的模擬計算,探討了其應用方法,並就隧道變形與應力及塑性區分佈規律進行了分析,從而提出了合理的支護方案,為隧道支護設計提供了參考依據,完善了隧道全長粘結式砂漿錨桿支護的理論與方法。The model with integrated finite element method for whole bridge is relatively detailed, and can calculate stress and displacement of every member and part of whole bridge. so it is an effective method for detailed calculation and analysis of bridge structure behavior
全橋組合有限單元計算方法建立的模型比較詳細,能夠計算全橋各構件、各部位的應力與變形,是橋梁結構行為詳細計算分析的有效方法。A bearing surface transmits the interaction between an arch dam and its foundation, the strength of which directly affects the constraint of the bedrock to the dam, and thus affects the stress and deformation of the dam. the influence is studied in this paper with nonlinear finite element method, as an example, for a high arch dam in design. the results show that the influence on stress is only limited within the local area near the bearing surface, larger on the maximum principal tensile stress than on the principal compression stress, and the decrease of the strength does not cause unlimited increase of the maximum stress. the influence on the displacement of the top of the dam is smaller than that of the bottom of the dam, especially the relative downstream displacement. at the lower strength of the bearing surface, the relative downstream displacement at the bottom of the dam increases with the decrease of the strength
建基面是傳遞拱壩和基巖相互作用的紐帶,它的強度直接影響基巖對壩體的約束,從而影響壩體的應力和變形.採用非線性有限單元法,以設計中的某高拱壩為例,分析建基面強度對壩體應力和變形的影響.結果表明建基面強度對壩體應力的影響僅限於建基面附近的局部范圍,對最大主拉應力的影響要大於對最大主壓應力的影響,建基面強度的降低不會無限地增大壩體的應力數值;建基面強度對壩頂位移的影響較小,但對壩底位移(尤其是順河向相對位移)的影響較大,當建基面強度較低時,壩底順河向相對位移隨建基面強度的降低而增大Based on the actual construction, a study on the simulative calculation for both the temperature and the thermal stress of the continuous rcc placement for the construction of langtan rcc gravity dam is made with 3 - d finite element method
摘要結合施工過程,應用三維有限單元法,對龍灘大壩連續澆築混凝土的溫度及溫度應力,進行模擬計算的研究。( 2 ) the finite element is used to analyze the stress field change of the valley - side margin during original state, the condition of human ' s cutting a terrace of building houses in the loess slope, and the condition of cutting the top of loess slope, then the dynamic mechanism for forming of the landfall is probed
採用有限單元法對宅基邊坡谷緣在天然條件、斬坡建窯條件及削坡處理條件的應力場變化進行了對比分析,揭示了崩塌產生的動力學機制,從而為人工谷緣整治提供了科學依據。By combining the displacement function of two - end fastened strip in finite strip method ( fsm ) with that of rectangular element in finite element method ( fem ), the compound finite strip - element method is used to solve plane problems with mechanics of elasticity
摘要將有限條帶法( fsm )中兩端固定條和有限單元法( fem )中矩形單元的位移函數相迭加,運用混合條元法來求解平面彈性力學問題。Hybrid stress finite element method for nonlinear composite materials
非線性復合材料的一種雜交應力有限單元方法分享友人