空間應力狀態 的英文怎麼說

中文拼音 [kōngjiānyīngzhuàngtài]
空間應力狀態 英文
general state of stress
  • : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
  • : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
  • : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
  • : 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...
  • : Ⅰ名詞1 (形狀) form; shape 2 (情況) state; condition; situation; circumstances 3 (陳述事件或...
  • : 名詞1. (形狀; 狀態) form; condition; appearance 2. [物理學] (物質結構的狀態或階段) state 3. [語言學] (一種語法范疇) voice
  • 空間 : space; enclosure; room; blank; interspace
  • 狀態 : status; state; condition; state of affairs: (病的)危險狀態 critical condition; 戰爭狀態 state o...
  1. Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us

    本文從南方紅豆杉種群生學的角度、主要用數學生學的方法探討南方紅豆杉種群的數量特徵,包括南方紅豆杉種群年齡結構、種群格局(探討分佈格局動規律與生境相互關系) 、不同立地條件下種群優勢度增長趨勢、生位寬度、生位相似比例、生位重疊、占據能及種競爭等,分析其目前現及瀕危原因,期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎,也為瀕危植物種群生學的研究提供參考。
  2. In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future

    本文結合重慶市大渡口區「三木花園」開發建設項目,從地下結構穩定性分析角度出發,針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米,高7 . 5米的地下隧道這一具體工程情況,採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的與位移演變規律進行了有限元數值分析計算,探索了地下圍巖與高層或多層建築物地基基礎之的相互影響,通過考慮未受到任何人為擾動影響的天然、地表存在多層或高層建築物和地下開挖用於軌道交通的地下隧道等三種不同以及4個水平剖線和4個垂直剖線等不同情況,從以下幾個方面具體分析研究了計算斷面的與位移分佈規律: ( 1 )在各種不同下計算斷面的主矢量圖、位移分布圖( ux 、 uy )以及等值線色譜圖( _ 1 、 _ 2 、 _ ( xy ) )等; ( 2 )相同下不同水平與垂直剖線的_ 1 、 _ 2和_ ( xy )對比分佈曲線; ( 3 )不同下相同水平或垂直剖線的_ 1 、 _ 2和_ ( xy )的對比分佈曲線等,為今後在對地下的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。
  3. In the last, the modern control theory and simulink in matlab have been integrated together, and it has been applied in active control of the platform structure elastically supported ; a mechanical model and an equation of motion in state space have been established. based on coc, dynamic response of the platform structure elastically supported has been studied under simple harmonic load ; the influence of different values of weight function to the active control efficiency of the structure has also been discussed

    本文還將現代控制理論與matlab的simulink動模擬軟體包相結合,將其用於彈性支承平臺結構的主動控制中;建立了彈性支承平臺結構主動控制理論的學模型和內的運動方程;用經典線性最優控制演算法對彈性支承平臺結構在簡諧荷載作用下的動進行閉環控制;分別從理論和數值計算兩個方面討論了權函數矩陣q和控制權函數矩陣r的不同取值對控制效果的影響。
  4. In this thesis, the construction and monitoring general method of cable replacement work for qianwei minjiang river cable - stayed bridge is introduced firstly, then, using large - scale commercial finite elements analysis software, algor, a space solid model is developed. in order to give attention to internal force and deformation, the thesis simulates the factual situation of the bridge by adding boundary elements. the analyzed items include : cable forces, deflections, stress of box - girder and maximum horizontal deformation of tower under different cable - replacement cases, which can be used to tutor design and construction for other similar works

    本文以犍為岷江大橋換索工程為背景,首先介紹了該橋換索施工與監控工作的大致情況,並用大型商業有限元軟體algor建立了該橋計算模型,建模過程中為了真實地模擬結構換索前的內,實現內與線形兼顧,本文使用了「添加邊界元還原結構內」的方法。
  5. According to the experimental parameters of mpt, the main performance parameters of different propellants have been given by engineering performance computation under designed and working states, which has great importance for the experimental research and the future work. 2. for helium and argon, the factors which influence on mpt ' s vacuum steady work have been discussed such as the material of microwave tie - in, the distance between the probe and inner - conductor, the position of the inner - conductor, the input power of microwave, the mass flowrate of propellant and the vacuum pressure of environment, and the influence has been discussed of the microwave power and the mass flowrate of propellant on the pressure of the resonance cavity, thrust, reflected power and the temperature of the resonance cavity

    論文的工作和新見解主要包括: 1在設計和工作下,根據mpt的實驗參數,對mpt使用不同工質時的性能進行了工程估算,這對mpt現階段的實驗研究和今後的研究有重要的指導意義; 2對于he 、 ar推進工質,討論微波的接頭材料、探針與內導體的隙、內導體的位置、微波的輸入功率、工質的質量流量以及環境真度對mpt真啟動和穩定工作的影響,並探討微波的輸入功率、工質的質量流量對諧振腔壓強、推、反射功率以及諧振腔溫度的影響; 3對于n _ 2 、 h _ 2 、 nh _ 3 、 h _ 2o推進工質,主要討論與he 、 ar工質不同的特性,並從長遠的眼光和工程用的角度,認為其可行性不容置疑,潛在優勢不可忽略,是未來mpt用的主流推進工質。
  6. Taking the bending stiffness, cable sag and cable inclination into consideration, the space vibration control of the cables using the visco - elastic dampers in cable - stayed bridges is investigated by joining the center difference method and the state space strategy. both the maximum modal damping ration and the optimal damper size are obtained, then the practical suggestions are proposed for the design of the dampers. the space nonlinear vibration equations of the cable - damper system are derived, and a new hybrid method for solving the cable - damper system is presented by combing the newmark method and pseudo - force technology

    綜合考慮了拉索抗彎剛度、垂度的影響,研究了粘彈性阻尼器對斜拉橋拉索的振動控制,聯合中心差分方法及法,得出了拉索麵內、外振動各階模可能達到的最大阻尼比及相的最優阻尼器系數,並對斜拉橋拉索的阻尼器設計提出了參考建議:考慮拉索抗彎剛度、垂度及幾何非線性,導出了索-阻尼器系統的振動非線性方程組,結合newmark方法及偽( pseudo - force )方法,創新地提出了求解非線性方程組的雜交方法,根據拉索-阻尼器系統的阻尼特性,在各種荷載作用下,對索-阻尼器系統的非線性瞬振動響進行了研究,從系統響的角度更加直接地驗證了阻尼器的控制效果。
  7. Researching on the technology if reverse order is to study strains if pits, structural systems if basement, environmental surwey and underpinnings. on account of emphasizing developing methods if checking strength if pick - ets, modemizing machenes of excavation and studying methods of underpinning is put forward and is a way if controlling the quality of pickets in sites, which leads an active effect ; synthetic application if rankintheory, spatial and time effect theory to excavation tl aanalyze the state of soil force and strain is brought forward and the time effect should be considered in the zone of clay, the formation and development of soil plasticity are analyzed and the most dangerous zone to decide how to excavate and where to begin is found ; analyzing the cause of picket settlement during reverse order and the differential settlement and discussing hlw to solute it. duringh the temporary survey and the environmental warship, bringing rorward the theory of environmental vibration and analyzing the state of soil force and probability of losing stabilization of soil under the effect of environmental vibration ; analyzing the state offeree in underground concrete wall by the method of mathematics and pointing out the place of the maximum force and deformation. based on systematic illustrating the reverse order, problems about application and development of reverse order and suggestions also are expressed

    鑒于國內外的研究把重點放在大發展工程樁的實驗室承載監測方法與設備、如何使土方開挖機械現代化及對周圍建築的臨測方法上,本文提出了現場利用聲波層析成像技術監測鋼砼樁內部質量的方法與程序,並得出了聲波層析成像技術是砼樁的動質量檢測的有效手段,這對指導施有積極、現實意義;提出了綜合運用朗肯土壓理論、基坑和時影響理論來分析逆作法施工過程中基坑邊坡土體變的變化情況,指出粘土地區也考慮時,並且進一步分析了基坑邊坡土體的塑性區形成和發展,找出邊坡最不利的區域,以確定地下室土體的挖掘的方式和順序,指出憑主觀臆斷與經驗來施工是不可取的;在分析、經較逆作法與大開挖順作法的地下室結構體系受情況及施工順序的不同,提出了節點處理技術;分析了逆作法施工期樁的沉降變化原因及由此而產生的差異,並探討了解決的方法;本文還提出了環境振動對土體邊坡穩定產生影響的觀點,並分析了在環境振動影響下,土體的及土休失穩破壞概率,並且還運用彈性學知識和數學分析的方法定量地分析了地下混凝土墻受,指出了被監測墻體的最大變位置。
  8. Secondly, through the examination and observation of the structural model of the cast - in - place pre - stressed compound floor slab system, under the normal usage load, the normal usage limit - state and the failing load, we have validated the space working - feature of the structural model under variable loads, including the rigidity, the crack, failing - state, failing load and the stress variation of the pre - stressed bar, and so on

    其次,通過對該體系的結構模型在正常使用荷載、正常使用極限和破壞下的試驗研究,驗證了現澆預復合樓蓋體系模型結構在各種荷載作用下的工作性能,包括剛度、裂縫、破壞形、極限承載及預筋的變化等。
  9. The domestic artificial map cracking ( cavity ) core is first presented, which is accordant with prerequisites similar to the real permeability and the percolation spatial configuration of the reservoir, and successfully applied to the long - core test under the conditions of high pressure, high temperature, high salinity and high viscosity available

    在國內首次人工製造出了同時符合油藏儲滲層滲流要求和滲透率要求的網裂縫(洞)巖心,並在四高,即壓高、溫度高、礦化度高、粘度高的模擬油藏實際條件下成功用人工製造網縫巖心完成了輪古地區長巖心驅替實驗。
  10. Meanwhile, according to the assessment cell of small watershed, the paper evaluates each index and compositive index. the paper can provide scientific bases for both protection and use of wetland by disclosing the spatial distributing rules and analyzing the impact on environment brought because of exploiting. the study shows that 1 ) in the structure of wetland ecosystem health of panjin city in 2000, better area accounts for 22 %, generic area 52 %, worse area 26 % ; 2 ) in shuangtaizi national wetland nature reserve, the health of many regions is better, the one of partial regions is threaten, the area of wetland is decreasing ; 3 ) in the period from 1986 to 2000, paddy field, shrimp and crab pool were increased, swamp and biodiversity were decreased gradually, and the environment of wetland was polluted gradually

    本文以生系統學、景觀生學、生系統健康、區域可持續發展等理論為基礎,根據聯合國經濟合作開發署提出的壓--響( psr )框架模型,以遙感數據及統計監測數據為基礎,採用rs 、 gis 、 gps技術,結合數理統計和數學模型方法,提取土地利用/土地覆蓋信息、濕地類型信息、小流域信息、濕地景觀指數、濕地初級生產、濕地人口壓指數、濕地蓄水量、濕地污染物負荷、濕地變化等數據,建立盤錦市濕地生系統健康數據庫,以小流域為評價單元,對每個小流域濕地進行單因子和綜合評價,揭示盤錦市濕地生系統健康況的分佈規律,同時對濕地資源開發造成的環境影響進行剖析,為濕地資源的保護與利用提供科學依據。
  11. Stochastic subspace identification method is the major in this article, and this method is based on the theory of projection of row space, and also uses qr decomposition, svd decomposition as well as least squares estimate to state space matrices of the discrete system so as to achieve the parameters of the dynamic behavior and it can achieve an accurate result

    隨機子法是本文的論述重點,它運用了行投影的理論,通過qr分解和svd分解以及最小二乘估計來識別離散后的系統矩陣,從而得到系統的動學特性參數,識別精度較高。本文詳細的推導了隨機子法的理論公式,並編寫出相的matlab程序。
  12. The aim of this paper is to relate structural inherent characteristic with exterior excitation, to wield experimental mode analysis technique and structure intension theory in order to separate structural leading mode under practical work state on base of spectrum analysis of exterior excitation and identification each rank mode parameter of structure. sequentially, the issue of space complex stress state in effect of static and dynamic coupling transforms into the issue of simple stress state ( under mode form ) in reciprocal effect of each rank mode in order to analyze structural dynamical intensity

    將結構本身的固有特性和外部激勵聯系在一起,運用實驗模分析技術和結構強度理論,在對外部激勵進行譜分析和識別出結構各階模參數的基礎上,分離出實際工作下結構的主導模,從而將一靜動耦合作用下的復雜問題轉化為各階模相互作用下的簡單(模下)問題進行結構動強度分析。
  13. ( 2 ) making use of some measure methods of field and indoor, the geostress status in the engineering rockmass has been ascertained and the systematic recognition of the geostress field in the area has been attained : the direction of a l in the area is n50 ? ~ 86 ? w, and the included angle between the direction of o, and the horizontal surface is 25 - 45 ? on the whole

    ( 2 )通過現場和室內測試,查明了工程區巖體的空間應力狀態,獲得了整個隧道工程巖體內地發育分佈規律的系統認識。研究表明,本區最大主_ 1的(水平投影)方向為n50 ? 86 w ,與水平面的夾角總體上介於25 - 45之
  14. Although it is useful to secure the fortune of owners in a good condition and clearly tells benefit or cost each other, and it is difficult to attract persons of high ability to work for them. all kinds of interests groups may exert all strength to push the government to make a good policy for their own, naturally the characteristics of the main interests groups, to some extent, will decide the character of the policy

    此舉將不可避免地會擠壓其他利益主體的獲利與權利,進而導致那些弱勢的利益主體以這樣或那樣的方式同佔主導地位的利益主體進行博弈,爭取自己的權利,相互博弈的結果便有可能逐步在他們之達到一種均衡? ?為各方所基本接受的利益實現、分配形式,並有可能在一個社會之中產生與之相適的人資產類型與信息加工模式。
  15. The paper analyses the stress of bulk cargo, puts forward the analytic method of working out the separating interface between gas and material and establishes t he model calculating model and the movement characteristic parameter equation according as the moment balance law to determine the size, rotate speed, the drive power of screw and the productivity

    分析了物料,提出了物料與氣分離界面的解析法,根據物料的矩平衡建立了螺旋阻矩的計算模型和物料的運動特徵參數方程,以確定螺旋的尺寸與轉速、螺旋驅動功率和輸送量。
  16. Thirdly, subspace iterative method is adopted in the paper, and natural periods and modes of preceding fifteen steps of zhongshan no. one bridge are solved, dynamic characteristics of this kind of structural system are obtained, inherent link between dynamic characteristics and structural rigidity is discussed deep, the viewpoint is provided that dynamic characteristics of a structure are considered as important basis whether structural scheme is rational ; in addition, the author brings out some own views and opinions about calculational methods of prestress value of different sorts of tie rods, simulation of local rigidity region, foundation of a local finite element model of a node

    另外,提出在施工階段中某些構件的有可能比成橋還大,需防止在施工中構件因強度不足而破壞;再次,採用于迭代法,求解了拱式組合體系橋梁的自振周期和振型,得出該種結構體系的動特性,深入探討了動特性和結構剛度之的內在聯系,提出了把結構的動特性作為判斷結構方案是否合理的重要依據。此外,本文還就系桿預值的確定方法、局部剛度區域的模擬、節點局部有限元分析提出了作者的見解和看法,對解決類似問題得出了一些有參考意義的結論。
  17. The mode competition is much improved. it may operated with a large electron beam radius, that means decreasing the space charge effects compared with a smaller radius beam with the same current, hence the rbwo may operated with a low axial guide magnetic field. besides, the rbwo with a sinusoidal corrugated coaxial structure is very easy to manufacture

    波紋內導體rbwo具有一些突出優點:同軸結構中內導體的存在使系統的截止頻率顯著升高,使得系統尺寸可比普通波紋波導慢波系統大;具有很大的抑制模式競爭的能和很高的功率容量;可以採用大半徑電子注,在工作電流不變的情況下電荷效大幅度降低,因而可以工作在低磁場;此種慢波結構內導體上的波紋易於加工。
  18. Analysis of a great many data shows that some strong earthquake will arouse seismogenic zone loading and bring the increase of stress, accelerate accumulation of nonlinear strain of medium. it will make the earthquake source rupture of high stress status in unsteadiness in advance, which resulting the proceeding earthquake occur in advance

    表明:某次強震活動可以引起某些孕震區的加載,介質非線性變積累加速,使處于高的震源失穩提前進入不穩定,后續強震提前發生,即強震之存在著時上的關聯性。
  19. This article emphatically discussed and analyzed following points : load command feed forward function can improve the rapid respond character of steam turbine generator ; lead of load command have advance control function on boiler main control and can highly improve the stability of main steam pressure ; the use of predict control and state space variable function can improve the quality of boiler steam temperature control effectively, control the steam temperature in the defined range and increase the boiler and turbine life and efficiency even if working state changed in a big range ; linear compensation can restrain the vibration of generator load in the condition of big loa d change

    本文重點討論、分析提出負荷指令前饋作用可以提高汽輪發電機快速響特性;負荷指令的導前功能對鍋爐主控有超前控製作用,能顯著提高主蒸汽壓的穩定性;採用預測及法能有效改進鍋爐蒸汽溫度控製品質,在大幅度工況變化下仍有效控制蒸汽溫度在額定范圍內,提高鍋爐、汽輪機壽命及其效率;汽輪發電機組的快速響性與汽輪發電機組負荷振蕩問題的平衡關系,採用線性補償可以有效抑制在負荷變化梯度較大情況下發電機負荷振蕩問題。
  20. Round steel tube members now have been widely used in space grid structures, reticulated shell structures, power transformation structures and ocean platforms, etc. most of the above - mentioned space structures are multiply hyperstatic structures under complicated stress condition

    目前,圓鋼管構件已廣泛用於網架、網殼、電構架和海洋平臺等結構中。上述這些結構大部分是高次超靜定結構,它們受比較復雜。
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