有限不連續性 的英文怎麼說
中文拼音 [yǒuxiànbùliánxùxìng]
有限不連續性
英文
finite discontinuity- 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
- 不 : 名詞[書面語] (剁物所用的木墩) a block of wood
- 連 : Ⅰ動詞1 (連接) link; join; connect 2 (連累) involve (in trouble); implicate 3 [方言] (縫) ...
- 續 : Ⅰ形容詞(連接不斷) continuous; successive Ⅱ動詞1 (接在原有的后頭) continue; extend; join 2 (...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 有限 : limited; restricted; finite; a little; not much
- 連續性 : continuity; solidity; sequence; continuance
- 連續 : continuation; succession; series; continuity; continuing; running; continuous; successive; contin...
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Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method
其主要功能是:當車輛滾翻時, rops能刺入未凍土壤而阻止車輛的進一步滾翻,降低滾翻的車輛對系著安全帶司機軋傷的可能性;保證rops在碰撞和沖擊變形不大的地面(如凍土、混疑土上、巖石)時,能具有相當大的抗連續沖擊能力;當車輛已經處于顛覆狀態時,已經變形的rops應能支撐住整車。落物保護裝置(簡稱fops ) ,其構件的布置方式要能遮蔽墜落的物體(如,樹木、巖石等) ,以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定,對大型推土機傾翻和落物保護裝置進行研究,在理論分析的基礎上,通過建立rops fops的力學分析模型,推導彈性、彈塑性階段rops fops變形的計算公式,建立一套可行的rops fops的非線性有限元分析計算方法。The study in the paper starts with beam distortions, and it treats the plastic deformation area as pure bending sect, rest of the beam as rigid bodies. according to different shapes of the external tendons, it divides into three structural forms familiar in projects, that is the beams with no deviator, with a deviator and with two deviators, and studies the relation between the deformation of the external prestressing tendons and that of the beams, and derives the formulas of the ultimate stress increment of external tendons. in the formulas, the ultimate angle corresponding to half of the plastic deformation area is considered as a variable parameter
本文首先從梁極限狀態下的變形入手,將塑性鉸區看作純彎段,將塑性鉸以外的區域看作剛體,按照體外預應力筋的形狀不同,分工程中最常見的三種體外結構形式,即無轉向塊的直線型體外筋混凝土梁、具有一個轉向塊的單折線型梁和具有兩個轉向塊的雙折線型梁,研究體外預應力筋變形和梁體的變形間的關系,推導出以極限狀態下塑性鉸區之半對應的轉角為參數的計算體外預應力混凝土簡支梁以及連續梁的體外筋應力增量計算公式,並進一步求得梁的極限承載力。The result can be used in control problems whether the time interval is finite or infinite, the control set is bounded or unbounded, and also for systems with a weak differentiable function, i. e., the function f is only strong continuously g - differentiable but not f - differentiable. so, th 6. 2. 7 is a uniform theory of optimal control, and it has wide - ranging applications
可以看到,我們的結11摘要果可用於有限時域和無限時域、有界控制和無界控制、並且對系統中函數f的可微性要求也有較大的減弱? f對狀態變量x可以是僅有強連續的g一導數、不要求為f一可微。In order to solve the default of the limited valid scope and discontinuity characteristic, introducing the state continuous conversion gene based on establishment of respective mathematics model for low and magnitude current scope, and integrate with them reasonably then having established the mathematics model of suitable whole scope and having solved present mathematics model existent problems
本文針對目前電弧爐負載數學模型存在的適用范圍有限、特性不連續等缺點,在建立了分別適合大、小電流區域運行特性的數學模型的基礎上,引入狀態連續轉換因子,將分別適合大、小電流區域運行特性的數學模型有機結合為一個整體,建立了適合全范圍的數學模型,解決了目前數學模型存在的問題。Although you were born in hong kong and a hong kong permanent resident before 1 july 1997, as you are not of chinese nationality after approval of your change of nationality and you have not returned to settle in hong kong in accordance with the transitional provisions under paragraph 6 of schedule 1 to the immigration ordinance and you have been absent from hong kong for a period of not less than 36 months when you return to settle in hong kong, you will lose the status of a permanent resident and cannot enjoy the right of abode in the hksar
雖然你在香港出生,在一九九七年七月一月以前是香港永久性居民;但是,由於你在國籍變更獲批準后,已是非中國籍人士,而你未有依照《入境條例》附表1第6段過渡性條文的規定在限期前返回香港定居,及在返回香港定居時,已連續三十六個月或以上不在香港,所以你已沒有香港特別行政區居留權。The foundation engineering is typical in both excavation depth and scale, on the basis of in - situ investigation, the design optimistic of retaining wall was discussioned in this paper, the mian reseaches including : the using of fem optimazition methods of rods system ; the delvopment of programs for optimazition of imbedding depth of structure based on matlab and for whole design optimaziton of the retaining structures based on ansys, under the two controlling factors of the saft coefficient and the reliability probability about the whole damage of retaining atructure ; the analysis on the m index of soil, the depth of retaining structures imbedded in the rock and the overall optimistic design of retaining structures
該基礎工程不論在開挖深度還是規模上都很具有代表性。作者在現場調研的基礎上,探討了基坑支護結構設計優化問題。主要研究內容可以歸納為:應用基於m法的彈性地基梁桿系有限元方法;在圍護結構整體穩定性安全系數與可靠性破壞概率兩種控制因素下,編寫了嵌巖深度優化的matlab程序與圍護結構整體設計優化的ansys批處理程序;進行了地層抗力比例系數反算、地下連續墻嵌巖深度優化與地下連續墻結構體系整體設計優化。According to the documentation collected from domestic and abroad wang wei dong who works in huadong architect and structure institute utilizes the similar work property between the underground continuous wall and pile subjected the vertical loads, and introduces poulos method of elasticity and plastic which applies to pile foundation into the calculation for subsidence of underground continuous wall. pujialiu and yu yuzhou from water and electronic engineering of qinghua university, according to the result of three axes, define the concrete parameter utilize the model of non - linear e - b combined with the design cross section of dam in xiaolangdi, yellow river accept the total stress programme of thepd dam, and we analyze the stress and displacement of plastic concrete diaphragm wall by finite element method in comparison with the result of common concrete one. at same time, we consider the effect of the character of plastic concrete diaphragm wall which is composed of different gradients and adopting the level of stress and pulling stress infers whether the plastic concrete diaphragm wall is safe or not
地下連續墻是一種歷史較短的施工方法,目前,砼防滲墻的設計還是以傳統的設計方法為主,根據查找國內外文獻資料,華東建築設計院王衛東利用地下連續墻與樁在豎向荷載作用下的工作性能有相似性,將適用於樁基的poulos彈性理論引入對地下連續墻的沉降計算中;清華大學水利水電工程系濮家騮、于玉貞根據三軸試驗結果確定混凝土的參數,利用非線性e - b模型,結合黃河小浪底土石壩設計剖面,採用thepd土石壩總應力程序,對深覆蓋層塑性混凝土防滲墻的應力、位移進行有限元分析,並與普通混凝土防滲墻計算結果加以對比,同時分析了不同配比塑性混凝土特性的影響,並採用應力水平和拉應力數值來判斷塑性混凝土防滲墻的安全程度。The transient mathematical equations are addressed for the coupled heat and moisture transfer by taking account of moisture accumulation procedure. an analytical method by means of the transfer function is proposed to predict the transient distributions of temperature and moisture content at different interfaces in walls. a numerical analysis approach based on an efficient finite - difference method is developed to deal with the procedure of coupled heat and moisture transfer in a multilayer wall with nonlinear boundary conditions considered
建立了考慮濕積累過程的瞬態熱濕耦合模型,在方程中引入了濕積累項;發展了一種傳遞函數解析方法進行墻體內不同剖面處溫度和含濕量的動態預測;首次提出了一種基於有效有限差分法預測非線性邊界條件下多層多孔結構內的傳熱傳濕過程的數值分析方法,求解過程中考慮了瞬態邊界條件,從而避免了通常處理中由於邊界條件設定為常數而給計算帶來的誤差,對于多層結構每一層物性參數的非連續性,則採用了有效的有限差分逼近處理。Hence analysis and design of nonlinear sampled - data systems has been, in recent years, a subject of growing interest in the international community of control research. when a continuous - time plant is controlled using a digitally implemented controller, it is often faced that a continuous - time plant is transformed into its equivalent discrete - time model. a digital controller is usually designed on the base of approximate discrete - time models of the continuous - time nonlinear systems because it is difficult to obtain the closed form of the exact discrete - time model for nonlinear control systems
利用計算機等一類離散控制裝置來控制連續時間的受控對象時,都會遇到把連續時間系統化為等價的離散時間系統的問題,通過采樣器和保持器來實現離散時間的采樣控制,對于非線性連續受控系統,由於連續系統的時間離散化后一般得不到其等價的精確離散化模型表示的有限形式,實際上由其近似離散化模型代替來設計控制器,而近似會引起信號失真,那麼基於近似離散化模型上設計的采樣控制器,它是否同樣對原連續受控系統有效In 1985, takeshi kodama et al. [ 12 ] expressed the wavefunction as the combination of the function of the single electron in a one - dimensional square well with the finite barrier to calculate the binding energies of the exciton. this form does n ' t satisfy the continuity of the function and of its derivative divided by the band - mass
1985年, takeshikodama等人在計算激子的束縛能時把單電子的波函數( x , y )取為一維有限深方形量子阱中波函數的乘積,這種取法在邊界上不滿足波函數的連續性條件及粒子流( 1 / m ~ * ) ' ( x , y )的守恆條件。Serial algorithm improves decoding performance greatly ; serial algorithm finds the better trade - off between performance and complexity, it is a good decoding algorithm with high application value. ( 5 ) introduce the background of quantized decoding and basic theory. analyse effect of quantized decoding, research the impact of limited quantized to serial decoding, and present feasible project for quantized decoding
( 5 )介紹了量化譯碼的背景和量化原理,分析了量化譯碼對譯碼器實現的重要作用,基於串列譯碼演算法,以消息種類的不同分別研究了有限長量化對譯碼性能的影響,並提出可行的串列量化譯碼方案,其性能接近連續譯碼性能。Based on the established three - dimensional physical model, simplified terms, specified material parameters in thermal and physical properties, boundary conditions, and the calculation method of heat convection of cooling water, the numerical simulation and analysis on steady - state temperature field for continuous unidirectional solidification of niti shape memory alloy wire billets were proceeded under the condition of different combined parameters using ansys finite - element software
在建立三維物理模型以及確定材料熱物性參數、邊界條件與冷卻水對流換熱系數計算方法的基礎上,採用ansys有限元軟體對不同參數組合條件下鎳鈦形狀記憶合金線坯連續定向凝固的穩態溫度場進行了數值模擬。First, the error transfer characteristic among subsystems at different space locations is analyzed, and the direct transfer characteristic from discrete standard measure space to the workpiece measure space under measured in measure system is proven. second, the error reconstruction condition and method of mapping from discrete standard measurement system to continuous standard measure space are analyzed. based on the measurement sample stationarity in limited distance, the prediction model ' s limited astringency and mensurability to the dynamic measuring error and the prediction error respectively are proven
分析了不同空間位置子系統間的誤差傳遞特性,證明了在測量系統中離散標準量值空間向被測量工件量值空間的直接傳遞性;分析了離散標準量系統向連續量值空間映射的誤差重構條件和方法;基於測量樣本的有限距離的平穩性,證明了預報模型對動態測量誤差的有限收斂性和預報誤差的可測度性,進而證明了以離散標準量值系統對被測工件預報修正的可行性和合理性。In this dissertation, we study some stability properties for two impulsive differential systems employing lyapunov ' s second method : one system is impulsive hybrid differential system : the other is differertial system with impulses at variable time : herein these stability results do not require a lyapunov function to have a negative definite first derivative along trajectories of the system, further we may not require its derivative to restrict the function increasing growth ; and we do not give conditions on continuous portion or discrete portion of the systems respective ! } ", hence we can give mixing conditions on them
在這篇碩士學位論文中,我們主要藉助lyapunov第二方法的思想,討論了兩類脈沖微分系統:脈沖混合微分系統和具有依賴于狀態脈沖的微分系統的穩定性問題。不同於以往的研究,本文所找的lyapunov函數沿系統軌線的一階導數不再局限於常負或定負,甚至不用其導數來限制其增長速度;不再局限於對離散或連續部分分別設置條件,而是對其離散和連續部分設置混合條件。There were troubles in the continuity of the function and of its - derivative divided by band - mass on the boundary. in the theoretical calculation, the wave function is relative to the physical properties of the impurity greatly, the envelop function f ( x, y ) is expanded in terms of the one - dimensional linear harmonic oscillator function in this paper. it satisfies the continuity of the function and of its - derivative divided by the band - mass, so it improves the precision of the function and binding energy
與以往工作不同的是,以前選用的x , y方向電子的包絡函數f ( x , y )是一維有限深量子阱中波函數的乘積,在邊界上波函數的連續性和粒子流的守恆條件存在問題;而在理論計算中,波函數的選取與雜質的物理性質有密切關系,本文選取的電子的包絡函數是用一維線性諧振子的波函數展開而成的,在邊界上能夠同時滿足波函數的連續性及粒子流( 1 / m ~ * ) f ' ( x , y )的守恆條件,從而使得波函數和束縛能的精確度得到了改進。In this paper, i have analyzed the distortion of continuous rigid frame bridge at the condition of temperature uniform change by displacement method and finite element method computer aided design program - sap91. it included : the distortion and inner force condition at the bottom of single pier when it is consolidated, the distortion and inner force condition of thin double piers - rigid frame bridge ; the distortion and inner force condition of thin double piers - rigid frame bridge when the consolidation is elastic consolidation and confinement adopted different rigidity factor ; and the inner force condition of thin double piers - rigid frame bridge when the distance of piers is different
本文利用位移法和結構有限元電算程序sap91 ,對連續剛構體系橋梁在受到均勻溫變情況下:墩底固接單柱墩、雙薄壁墩連續剛構橋;墩底彈性固接時的雙薄壁墩連續剛構橋採用不同轉動約束剛度系數情況;以及雙薄壁墩墩間距不同的連續剛構橋梁的受力情況進行了分析和比較。This dissertation has made the following research : for the structures comprising discontinuities and three - dimensional specialities, which largely present in soc, the planar gap and the tridimensional vertical bend of shielded coplanar waveguide ( cpw ), are analyzed respectively as two typical examples. the finite - difference time - domain ( fdtd ) method are used for electromagnetic simulation using its highly accuracy
採用具有高精度數值解的時域有限差分法,對屏蔽共面波導的平面型間隙結構和三維垂直互連結構進行全波數值模擬,首次得到這些結構的電特性分析,並給出不連續性等效電路參數。Referring to three kinds of plan irregularity, structures individually with four kinds of irregularity as eccentricity in one direction, eccentricities in two directions, re - entrant corner irregularity and diaphragm discontinuity have been analyzed to investigate the relationship between torsion effects and parameters of above irregular structures. the parameters and the schemes for determining the scope of structures with different kind of irregularity considering seismic action in two directions simultaneously are proposed, some conclusions have been get as following : it is indicated by the analysis results that torsion effect has no dependency relation with eccentric torsional angel adopted in code for seismic design for buildings. it is suggested that the eccentric torsional angel should not be take as the parameter of torsion effect of structures considering seismic action in two directions simultaneously ; for the structures with regular plan and elevation and with eccentricity in one direction due to irregular mass layout, the relative eccentricity can be take as the parameter of torsion effect of structures considering seismic action in two directions simultaneously ; for the structures with regular plan and elevation and with eccentricities in two directions due to irregular mass layout, the ratio of relative eccentricities in two directions and the angel of them can be take as the parameters of torsion effect of structures considering seismic action in two directions simultaneously ; it is indicated by the analysis results that the torsion effect has no dependency relation with re - entrant corner ratio adopted in code for seismic design for buildings as
所取得的主要結論有:結構的扭轉效應與《抗震規范》所採用的扭轉不規則指標即偏心扭轉角之間的相關性較差,偏心扭轉角不宜作為判斷結構是否計及扭轉效應及需考慮雙向水平地震作用的界定指標;對于樓層間均勻偏心的多層單向偏心結構,建議採用相對偏心距作為需考慮雙向水平地震作用的界定指標,並給出針對不同平面尺寸的界限相對偏心距;對于樓層間均勻偏心的多層雙向偏心結構,建議採用兩個主軸方向的相對偏心距及其夾角作為界定指標,結合單向偏心結構的界定方案進行需考慮雙向水平地震作用的結構范圍界定;凸凹不規則結構的扭轉效應與凸凹比例無正相關關系, 《抗震規范》要求所有平面布置不對稱的凸凹不規則結構計及扭轉效應的規定欠妥當,建議凸凹不規則界限值從30改為15 ,只要求分析採用空間模型比較合適; 《抗震規范》關于有效樓板寬度較小的結構需計及扭轉效應的規定很有必要,樓板局部不連續的結構需採用符合樓板實際剛度的計算模型予以分析,可使用相對偏心距(及其夾角)參照單向(和雙向)偏心結構的界定方案,界定樓板局部不連續結構是否需要計入雙向水平地震作用下的扭轉效應。The slide mechanism mainly by pushing for and the hydraulic power system with the necessary supporting wireless sensor detection and computer control system and network components, equipment is small in size, light forces, carrying capacity, a high degree of automation, convenient operation flexibility, security and reliability, the slip lifting the weight of components, and standard features such as unlimited distance
連續頂推機器人主要由頂推器、液壓動力系統以及與之配套的傳感檢測和計算機無線和網路控制系統等組成,具有設備體積小、自重輕、承載能力大,自動化程度高,操作方便靈活,安全可靠性好,被滑移、頂升構件的重量、尺度和距離不受限制等特點。According to construction features of three - span prestressed concrete and continuous rigid frame box with v pier bridge, the paper demonstrates the shell finite element theories, c onstruct the spatial model, and researches its spatial stress and variable regularity under different loads including uniform load, concentrated load and prestressing force wire. morever, the paper studies vibratory modal of three - span prestressed concrete and continuous rigid frame box with v pier bridge, and sets about experimental investigation of the corresponding practical bridge
本文根據典型的三跨預應力混凝土墩連續剛構橋的特點,提出採用板殼有限元法計算理論,建立其空間分析模型,研究該橋在不同荷載(均布恆載、集中活載、預應力束)支承條件下的空間受力特性和變化規律:探討了典型三跨預應力混凝土墩連續剛構橋的空間靜動力特性及相應的振動模態;探索一般的平面理論預測值與實際空間效應的差異,並進行相應的試驗研究。分享友人