連續體力學 的英文怎麼說
中文拼音 [liánxùtǐlìxué]
連續體力學
英文
continuum mechanics- 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 (...
- 體 : 體構詞成分。
- 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...
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 連續 : continuation; succession; series; continuity; continuing; running; continuous; successive; contin...
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Mechanics course mainly includes the description of movement of objects, the instantaneous effect of strength, spatial build - up effect of strength, temporal build - up effect of strength, nonindividual body mechanics, mechanical wave and sound, relativity, inalterability and covariability and mechanics foundation of the theory of relativity
力學主要內容包括物體運動的描述,力的瞬時效應,力的空間累積效應,力的時間累積效應,連續體力學,機械波和聲,相對性、不變性與協變性和相對論力學基礎等。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。Nevertheless, in these approaches the contact intethee are charactered sboly ed stiffeess k. and k. " which is not perfect and rigorous in thc vitw of solid mechanics and rather rough for the description of the behavior of the idtfores. in collbet, taken as a contact problem, the principal chatrs of the idtcthees can be reflected : ( l ) the cbntact inifore is of shear strength which implies tha a generic pair of contact points on the inidse will displace coincidentally if the tangential fbrce at this point has not reahed the 1imit resistance, else, relative s1ide betwee the points will occur along the tangental direction. ( 2 ) no matter the relative slide occurs or not, the contact bodies cannot invade each other in any wise
本論文在對這兩種方法進行認真的分析后,說明它們對不連續面的描述並不合理,也無法反映出不連續面的主要力學特性,同時指出,將帶有不連續面的巖土工程問題作為接觸問題計算更為合理,它可將不連續面受力變形的主要特點反映出來,即: ( 1 )接觸面具有相應的「抗剪強度」 ,即當接觸面上某一點處的切向應力小於該點處的抵抗強度時,點對共同變形;達到強度時,則沿切向發生相對滑動; ( 2 )在整個變形過程中,發生接觸的變形體不能相互侵入。This paper sets up a fuzzy optimum math - model of the prestressed degree for prestressing bundle disposition of prestressed concrete continuous beam bridges, which is transformed into a clear math program by - level cut - set. by the solution of the clear math program, a succession of reasonable prestressing moments can be obtained. then it is convenient to dispose the prestressing system by only taking account of geometric factors of all controlling sections. based on this, a theory of automatic disposition of the prestressing bundles is proposed and an engineering example is given to demonstrate it
建立預應力混凝土連續梁橋預應力度的模糊優化問題,按-水平截集解法,將模糊優化問題轉化為確定性的數學規劃問題.求得一較合理的消壓彎矩后,只需按控制截面的構造進行預應力體系設計.在此基礎上提出了配束自動化的基本思想,並以一實例說明其理論應用Abstract : this paper sets up a fuzzy optimum math - model of the prestressed degree for prestressing bundle disposition of prestressed concrete continuous beam bridges, which is transformed into a clear math program by - level cut - set. by the solution of the clear math program, a succession of reasonable prestressing moments can be obtained. then it is convenient to dispose the prestressing system by only taking account of geometric factors of all controlling sections. based on this, a theory of automatic disposition of the prestressing bundles is proposed and an engineering example is given to demonstrate it
文摘:建立預應力混凝土連續梁橋預應力度的模糊優化問題,按-水平截集解法,將模糊優化問題轉化為確定性的數學規劃問題.求得一較合理的消壓彎矩后,只需按控制截面的構造進行預應力體系設計.在此基礎上提出了配束自動化的基本思想,並以一實例說明其理論應用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。It is a little difficult tovcomplete the research and three years have been spent on it finally, there are three important conclusions : the three - dimensional feature structure ( team learning, team member roles, team empowerment ) of learning team is the influence on team effectiveness ; the team learning, team member roles and team empowerment can be designed to improve the organizational performance in the management of chinese enterprises ; the main kind of chinese enterprises now is the ameliorating team and it is in the middle of the continuity of learning team
本研究的難度和工作量比較大,歷經三年努力而成。本研究的重要結論包括:學習型團隊三維特徵結構(團隊學習、團隊角色、團隊授權)是影響團隊效能的重要因素;在實際工作中,團隊學習、團隊角色和團隊授權三因素水平可以提高組織效能;我國企業中現有的團隊以「學習改善型」為主,處于團隊連續體的兩極之間。The strength is a main mechanics performance index of the concrete. it has always been a focus of material scientific research of concrete. models about mechanics characteristic of concrete were mostly the understanding based on material macroscopical level of concrete in the past. its main characteristic turns the material ideal with heterogeneous, nonuniform nature into the even, continuous body and carry on modeling. this kind simplified and met project practice ' s demands to a certain extent, but it is difficult to study the influence produced toward strength of material of structure of the microcosmic or the mescoscopic within the concrete material with this kind of method
以往有關混凝土力學特性的模型大多是基於混凝土材料宏觀層次的認識,其主要特點是把具有多相、非均勻性質的材料理想化為均勻、連續體進行建模,這種簡化盡管在一定程度上滿足了工程實踐的需要,卻難以用這種方法來研究混凝土材料內部微觀或細觀結構對材料強度所產生的影響,不能說明材料內部結構如孔結構變化時強度的變化規律,也不能用於指導如何改進材料的組成和微觀結構而達到提高混凝土強度的目的。At the moment, the basic theory of loading mechanics is always used to search the problem of rock mass failure, but unloading and loading have different stress road and different destruction effect, so there are much difference in destruction mechanics and deformation between unloading and loading mechanics, if loading mechanics is used to study the destruction property of tunnel excavation and its stability, the result which agree to real engineering cannot be obtained
目前一直沿用加載巖體力學方面的基本理論研究失穩問題,但本文認為:由於卸荷與連續加載具有完全不同的應力路徑和破壞效應,在破壞機理、二者引起的巖體的變形和破壞特性方面都有很大的不同,因此用加載力學來研究開挖卸荷破壞的力學特性及其穩定性,這顯然不能得出與實際工程一致的結果。Abstract : to facilitate the design, teaching and research of asphalt pavements, the article founded the models of displacement and tensile stress of three - layer system by using separation of variables, analysis and synthesizer. based on the analysis of common pavement structures and their equivalent conversion, the regression formulas of displacement and tensile stress are obtained successfully, furthermore the formulas applied in multi - layer system are checked. a great number of results of regression formulas show good accuracy for engineering application and theory research
文摘:為方便瀝青路面結構設計生產、教學、科研之用,本文採用分析綜合法與分離變量法建立了彈性三層體系應力位移顯式模型;並在分析常見路面結構層厚度及其當量換算和模量變化范圍的基礎上,成功求得了三層體系路表彎沉、上層滑動應力、上層連續應力、中層應力逼近公式;精度分析表明本文逼近公式精度很好,完全可推廣應用於多層體系,滿足工程設計和有關理論研究的需要The multi - objective computational model involving static and dynamic objectives was worked out where minimizing compliance and maximizing mean eigenfrequencies were both concerned
以結構靜力學的剛度和動力學的特徵值作為優化的兩個目標函數,提出並建立了連續體結構拓撲優化設計的多目標優化模型。The examples above sufficiently prove that the dem is a powerful tool of simulating the dynamic problems from continuum to noncontinuum. this algorithm shows widely applicability and good prospect
通過上述算例充分證明了離散元法是模擬沖擊載荷下連續體的動態破壞和非連續體動力學行為的有利工具,顯示了這種方法的廣泛適用性和良好發展前景。Anthropology finds the creation of the civilization in the world context, i. e. the transformation from ancient times to societies with ranks of classes, has two basic means : one is the social fundamental changes due to the productive tools and productive means based on the breakthrough of technology, through which produced confusion with the ancient times. the other one is new era created by the establishment and maintain of the political authority and rights, from which inherited some types of institutions, views and ceremonies. thus china developed into a different legality from the west, ethical notions prevailed, no departure from criminal law to civil law, the law being a ruling way in close conformity with criminal rules ( xing ) and military rules ( bing )
人類學上的研究成果認為,就世界范圍來看,文明的產生,即從原始社會向階級社會的轉變有兩種基本方式:一種以人與自然關系的改變為契機,通過技術的突破,通過生產工具和生產手段的變化引起社會的質變,它以兩河流域的蘇美爾文明為代表;另一種則以人與人關系的改變為主要動力,它在技術上並沒有大的突破,而主要通過政治威權的建立與維持開創了一個新的時代,它以瑪雅一中國文化連續體為代表。Moreover, aircraft actually generate several vortices ? off the tail flaps, control surfaces and other areas of air - pressure discontinuity, states alan j
此外,連續體動力學公司的總裁畢拉寧說,飛機其實會產生好幾個渦流- -尾襟翼、操縱面與其他產生氣壓不連續的區域。The substance of problems in simulating the damage and failure processes of material under dynamic loading, such as impact and penetration, is that the mechanics model of material transfers from continuum to noncontinuum
材料在沖擊、侵徹等動載荷作用下產生損傷和破壞的過程,其實質是力學模型從連續體到非連續體的轉變過程。The mechanics intensity of structural plane is the feeblest part in the rock mass structure, the exhibition of discontinuity, unequal and anisotropy for mechanics capability induced by structural plane
結構面是巖體結構中力學強度最薄弱的部位,導致了巖體力學性能的不連續性、不均一性和各向異性。In this paper, according to the fluid dynamic theory, mathematical model of the pressure transients accompanying the growing and collapsing of gas bubbles and cavitation in low pressure hydraulic pipelines is given, based on the continuity equation and motion equation. the mathematical models of friction item, the growing and collapsing of gas bubbles and cavitation are also introduced
本文通過流體力學分析方法,在連續性方程和運動方程基礎上,建立了低壓液壓管路中伴隨氣泡和氣穴產生的瞬態壓力脈動數學模型,給出了動態摩擦力數學模型及氣泡和氣穴產生及破滅數學模型。Based on the strain energy equation for the three - dimensional continuum, the finite element formulation for large deflection of three - dimensional beam is developed
本文從三維連續體的應變能出發,推導了空間大撓度梁的靜、動力學有限元方程。A hybrid fuzzy - goal programming scheme for continuum topology optimization with static and dynamic objectives was proposed
摘要提出了連續體結構靜力學和動力學多目標拓撲優化設計的模糊目標規劃方法。Continuum dynamics and boeing go further by introducing “ active forcing ” of the vortices to induce a wobble, or “ waviness, ” into the flow to hasten breakup even more, dissipating it in perhaps 1. 5 to two nautical miles
連續體動力學公司與波音公司則更進一步,以主動形成的渦流在機尾亂流中誘發晃動,或曰波動,使機尾亂流潰散的速度更快,也許只會綿延1 . 5 ~ 2海里(約2 . 8 ~ 3 . 7公里) 。分享友人