重力作用線 的英文怎麼說
中文拼音 [zhònglìzuòyòngxiàn]
重力作用線
英文
line of gravity- 重 : 重Ⅰ名詞(重量; 分量) weight Ⅱ動詞(重視) lay [place put] stress on; place value upon; attach im...
- 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...
- 用 : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 重力 : [力學] gravity; force of gravity; gravity force; power of gravity; pull of gravity; gravitational...
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Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先,在前人研究成果的基礎上,對錨桿與圍巖的相互作用機理進行研究,利用全長錨固錨桿的中性點理論,從等效均化的角度來考慮錨桿對圍巖的加固作用,並推導了在簡單荷載作用下,含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解,對工程設計有著重要的參考意義;在數值模擬方面,以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎,利用虛功原理推導了接觸問題的有限元方程的計算格式,為開發運用大型商用有限元軟體msc . marc提供了理論根據,也形成了本文的理論基礎:最後,論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例,利用本文所述的接觸問題的摩擦模型理論,對錨桿支護結構的應力場、位移場的變化規律進行了研究,分析了加錨支護對隧洞圍巖應力、變形的影響。In section one, by using fice scheme and time - gcm, a model of trace gases and oh airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and oh airglow are analyzed. the result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. in this process, gravity wave undergoes growth, overturning, convection and breaking
在第一部分的工作中,利用全隱歐拉格式和全球熱層-電離層-中間層-電動力學環流耦合模式( time - gcm ) ,對重力波的非線性傳播及其在傳播過程中對中高層大氣中氧族和氫族成分和與之密切相關的oh氣輝輻射的影響進行了數值模擬,結果表明,從對流層向上傳播的重力波經歷了產生、發展、飽和、對流產生直至破碎的非線性演化,大氣的非等溫結構加速了重力波在中層頂區的破碎,重力波的非線性傳播是小尺度對流和湍流產生的一個重要的源。The following are such theories and methods as nonlinear theory considering interaction between support and rock mass, which, based on quantity analysis technology and actual data of initial crust stress, can simulate complex geological condition, carven shape and supporting so that provide important reference for analysis of stability of rock mass around underground carven and design of supporting
隨之而來的是考慮支護與圍巖共同作用的非線性理論和方法。這些理論和方法一般都以數值分析為手段,以實測地應力資料為基礎,能模擬復雜的地質條件、洞室形狀及支護措施,從而為地下洞室圍巖穩定性評價和支護設計提供重要的參考依據。It provides strong basement for the research of design. the method of structure analysis commended by this paper is based on nonlinear finite - element, diathermanous and elasticity mechanics. it found the model of a steel beam pressed by gravity and temperature in the condition of indoor fire
本文提出的結構分析法是在大量參數分析的基礎上,以非線性有限元、傳熱學及彈性力學為基礎,利用ansys軟體,建立一個鋼框架梁在室內局部火災條件下的傳熱模型與在重力荷載及溫度荷載共同作用下的受力模型。Furthermore, the dq value ranges of profile multifarctal spectra in different landform types and in different directions of the same sections perform different properties and anisotrpies. it can be concluded that the landscape fractal properties depends closely on the int ensity, manner and inhomogenity of exogenic and inogenic processess, and with the properties, we can study quantatively the dynamic geomorphic process. by using the same methods just above, local fractal dimensions d, crossover length tc and the multifractal spectra dq - q of two large - scale landform profiles ( across and along tianshan mountain ranges respectively ) are calculated. the results show that in the studied scaling range the two profiles perform different scaling properties, and both of them can be divided to three evident different linear scaling subsections
不同類型地貌區二維地貌表面也表現出多度域分形特徵,而且隨著觀測尺度的增加,每個區間的分維值均表現為依次減小,表明外營力作用的影響逐漸被內營力作用所取代:不同類型地貌區在相應區間的分維值表現為高山區中低山區盆地區,體現了不同類型地貌表面粗糙性或復雜性的差異,因此分維值大小可作為地貌表面外營力侵蝕作用強度的重要指標:利用標度區的間斷點和各種地貌類型表面分維值或宏觀效應趨於一致,提出5 - 6km左右可作為地貌的宏觀臨界點,並且與利用地貌剖線研究所得到的5km這一數值是基本吻合的。They include the ship kelvin wave pattern and wave resistance, the interaction of surface waves with floating bodies, the seakeeping of ships high - speed vessels and offshore platforms, the evaluation of the drift forces and other nonlinear wave effects responsible for the slow - drift responses of compliant offshore platforms and their mooring systems designed for hydrocarbon recovery from large water depths
這包含了船波和波的阻抗、波和浮體的交互作用、高速行駛船舶與近岸結構物之耐海性、拖曳力評估及其他造成順應式近岸結構物緩慢飄移現象的非線性效應,與結構物設計于深海中以重獲碳氫化合物之錨定系統。The gyro vertical utilizes a gyroscope as an integrating device to obtain the average position of a pendulous gravity reference.
垂直陀螺利用一個陀螺儀作為積分裝置以得搖擺不定的重力基準線的平均位置。The experiment procedure and analysis result about exteriorly extended end - plate connection with high strength bolt are introduced primarily ; each sample ' s dimension is given. the adding load equipment, measuring apparatus placed, measuring point established is detailed. adding load measure load and m - curve is produced ; the single span gabled frames horizontal displacement formula is deduced when the horizontal concentrated force is applied to it
重點介紹了外伸端板高強螺栓連接的實驗過程及實驗分析結果,介紹了各組試件的形狀尺寸、加載裝置、測量儀器安放、測點的布置等;給出加載方式及測出的m -曲線;計算出試驗節點的初始剛度;推導水平集中力作用下單跨門式剛架考慮節點半剛性的側移計算公式。First, the dynamic stability of braid composite cylindrical shells with the influences of some main factors is introduced. the general governing equations for the nonlinear dynamic stability is obtained. by the hamilton principle. the creep buckling analysis of braid composite cylindrical shells under axial compression and the dynamic stability under nonconservation force are discussed as emphases. in creep buckling question, by means of theoretical analysis, the instaneous critical load and durable critical load of viscoelastic braid composite cylindrical shell under axial compression are obtained and the numerical example is given
首先介紹了編織復合材料圓柱殼在幾種主要因素影響下的動力穩定性問題,用hamilton原理建立非線性動力穩定性問題的一般性基本方程。然後重點討論了編織復合材料圓柱殼軸壓下的蠕變屈曲問題及非保守力作用下的屈曲問題。對蠕變屈曲問題,通過理論分析來得到了編織復合材料圓柱殼的瞬時彈性臨界載荷和持久臨界載荷,給出了具體的算例。Because of the original design standard was low, the horizontal angur rigidity is serious lack, when the high speed train passes, the exceed limit of the horizontal swing had affected the lifting of the main trunk line, these diseases had been existed earlier but had not been gotten to resolve radical, and along with the increasing in speed of railroad train, these diseases performance will be more seriously, it ' s time for resolve
同時提速列車對橋梁結構的動力作用增大,特別是對上承式鋼板梁。由於原設計標準低,橫向剛度嚴重不足,高速列車通過時橫向擺動嚴重超限等已嚴重影響了主要干線的提速,這些病害很早就存在但沒有得到根治,隨著列車提速,這些病害表現越來越嚴重,已到了必須整治的時候了。With the speed up of railway transportation, the lightening design of vehicle seems to be more and more important. reducing the weight of vehicle can not only reduce the consumption of the raw materials and the power of traction, and increase the operation speed and improve the starting and braking performance of trains, but also has the advantageous to reduce the wheel / rail interaction forces, vibration and noise, increase the service life of the vehicle and the track, and economize the cost of transportation
隨著鐵路運輸速度的提高,車輛的輕量化顯得越來越重要,減輕車輛自重,不僅可以減少原材料的消耗,有利於降低牽引功率,提高列車的運行速度,改善列車的啟動和制動性能,而且可以有效的減少輪軌間的動力作用,減少振動和噪音,增加車輛和線路的使用壽命,節約運輸成本。The model simulations indicate that the severe storm is occurred in the pattern high - level of northwest flow, the waterjumping downhill flow form taihang mountain is the key mechanism to initiate the convective, on the other hand, the terrain can induce unbalanced low - level flow, which play an importance role in generating the mesoscale gravity waves ( mgws ) by convergence and divergence in low - level troposphere
( 2 )太行山對華北強對流風暴的發生有重要作用。一方面,地形可引起邊界層風場的變化,包括風垂直切變、下坡氣流和中尺度輻合線,從而對風暴的啟動、組織和移動發揮作用;另一方面,山脈背風波動和地形產生的不平衡氣流,有利於中尺度重力波( mgws )的產生和維持,並對下游地區強對流天氣的發展產生影響。After that, the multifractal spectra dq - q are computed by fixed - mass method. the results show that in the studied scaling range different types of landscapes and profiles in different directions perform different fractal properties, that is, the d value and crossover length ^ decrease in turns with the landform type from high - moutain, mid - low mountain to basin, and the profile parallel to wear grooves often has lower d values ( < 1. 5 ) than those perpendicular to wear grooves do ( 1. 5 ) in the same section
提出以地貌分形特點和渡越長度為依據的地貌層次界定方案,研究指出了5km左右應為宏觀臨界點:不同構造地貌區、不同取向的剖線的多重分形譜值域范圍寬窄表現出中低山區高山區盆地區,垂直構造地貌斜坡方向斜交方向平行方向的特點,表明了內外營力作用的不均勻性和方向性。High speed - railway is doubtless to bring new vital force for railway transportation. but with the speed and the load increasing, the motivity between wheel and rail increases rapidly which can bring the kind of damage to vehicle and line and more seriously can lead digression
高速鐵路無疑為鐵路運輸帶來了新的生機,但隨著鐵路客運運行速度的日益提高以及貨運運載重量的不斷增加,輪軌之間的相互動力作用就會急劇增加,對車輛及線路帶來各種損壞,甚至發生脫軌。It is constructed that radial impact and rubbing dynamics differential equations of the rotor system having the nonlinear rigidity on the unsteady and non - linear oil film. the bifurcation and chaos behavior of impact and rubbing fault rotor system caused by the parameters of nonlinear rigidity, rotor rotating speed, eccentric mass is analyzed, in the numerical value analysis method. the bifurcation diagrams, maximum lyapunov exponent diagrams, poincar maps, phase plane portraits, trajectories of journal center, time - history curve, amplitude spectra diagrams of the rotor motion are used
( 2 )建立了具有非線性剛度的轉子系統在非穩態非線性油膜力作用下的徑向碰摩動力學微分方程,並應用含高階余項的非線性動力方程的線性化數值法研究了此類系統響應的復雜動力學行為,利用轉子響應的分岔圖、最大lyapunov指數曲線、 poincar截面映射、時域波形、相軌線、軸心軌跡、幅值譜等圖形分析了系統響應的周期運動、擬周期運動、倍周期分岔、混沌等運動形式的轉化與演變過程,重點研究了非線性剛度、轉子轉速、偏心質量等系統參數對碰摩故障轉子系統的分岔和混沌行為的影響。These latest additions to our product line are used to scalp water from feed material to facilitate further fines processing
這是生產線中最新加入的設施,利用重力作用,把不少石料自動分化並在計算機的控制下,產生出客戶所需級配的砂石料。Based on an introduction of regional rapid rail transit in shanghai guangzhou, and tianjin, the features and effects of rapid rail transit on urban development are presented, and it is concluded that the construction of regional rapid rail transit will optimize and adjust urban layout relieve urban pressure and improve urban living standards
摘要通過介紹上海、廣州、天津等城市的市域性軌道交通快速線,闡述了軌道交通快速線的特點及其對城市發展的重要作用;說明通過修建市域性軌道交通快速線,可以達到優化調整城市布局、緩解城市壓力、改善城市生活質量的目的。Lots of investigations on bridge vibration resistance show that the analysis of cable - stayed bridge acts importantly on it ' s ability. as longer span of cable - stayed bridge, nonlinear earthquake analysis is another importanter problem for vibration resistance design
為抗震進行的大量研究表明,斜拉橋的線性抗震分析對提高斜拉橋的抗震能力起到了重要作用,隨著斜拉橋跨度的加大,其幾何非線性地震響應也是斜拉梁抗震設計中必須考慮的一個重要課題。The interaction mechanism of atomic force between tip and sample was unveiled more clearly with the analysis of the change regularity of force - distance curve. the theoretical research about the light pressure of laser and the gravity exerting on the micro - cantilever was first conducted in this paper : setting up the interacting model and formula of the light pressure, investigating the effects of these factors on the interaction mechanism of atomic force and the performance of afm, conceiving a method to remove these effects and so on. all of these were the theoretical foundation of developing the new atomic force microscopy and the new type of horizontal afm system
本文在全面分析掃描探針顯微鏡( spm )技術,特別是afm技術的國內外發展歷史、現狀及存在的主要問題的基礎上,進一步揭示了afm的原子力作用機理,著重分析了力?距離曲線的變化規律;對作用在微懸臂上的光壓力和微懸臂本身的重力進行了系統的理論研究和計算分析,建立了激光束對afm微懸臂的光壓作用模型及計算公式,考察了這些因素對原子力作用機理及afm性能的影響;提出克服或消除這些影響的理論構想,為發展新的afm技術、研製新型afm系統提供了重要的理論依據。The establishment of efficient traffic models to reveal fundamental traffic characteristics is an essential requirement in the design, planning and operation of transportation systems. cellular automata ( ca ) are non - liner dynamical system in which space, time and state values are discrete, using simply rules, ca has attained very good results in simulating several complex natural phenomena and physical problem. that enlightens people to simulate traffic flow by ca method. urban major road performs critically on dredging traffic, therefore, it is very necessary to study the control and manage for urban main - road
交通系統的規劃、設計和運作要求有能反映交通現象基本特徵的交通模型。元胞自動機是空間、時間和狀態都離散的非線性的動力學系統,它用簡單的規則在計算機上模擬各種復雜的自然現象和物理現象,並取得了很好的結果,啟發人們用它來模擬交通問題。城市主幹道擔負疏導交通的重要作用,因此對主幹道交通流的控制與管理的研究是非常必要的。分享友人