軌道應力 的英文怎麼說

中文拼音 [guǐdàoyīng]
軌道應力 英文
track stress
  • : Ⅰ名詞1. (路軌;軌道) rail; track 2. (比喻辦法、規矩、秩序等) rut; path; course Ⅱ動詞[書面語] (遵循; 依循) follow
  • : Ⅰ名詞(道路) road; way; route; path 2 (水流通過的途徑) channel; course 3 (方向; 方法; 道理) ...
  • : 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...
  • 軌道 : 1 (供火車、電車等行駛的由條形鋼材鋪成的路線) track; pathway; rail; runway; circle; railway 2 (...
  1. Because it ’ s hard to get radiation - harden hardware overseas, so the software fault tolerance techniques are significant for our national space enterprise. the computer platform of 863 plan project ” micro intelligent free - flying space robotic system ” consists of cots component. the orbit and the radiation environment of the robot are similar to ones of the argos satellite, and the system is required to have high reliability. therefore it ’ s necessary to applied the software fault tolerance techniques into the system to improve the anti - radiation capability after the techniques been verified valid

    因為我國很難從國外獲得輻射加固的硬體,所以,這項軟體容錯技術對我國航天事業的發展具有較大意義。 863計劃項目「小型智能飛行機器人系統」所用的計算機平臺採用商用器件,其衛星的運行與argos衛星近似,面臨的輻射環境與argos衛星相似,要求具有高可靠性。因此,小型智能飛行機器人系統有必要在驗證sihft技術有效的基礎上,用軟體容錯技術,提高其空間抗輻射能
  2. The secular influence of solar mass - loss on the orbital elements of meteor steams is examined by using the method of celestial mechanics of variable mass in this paper

    摘要將作者在變質量天體學所得理論結果用於太陽質量損失對流星群根數變化的長期效上。
  3. With two examples of the prestressed celom tension in the continuous girder design, which is utilized in the projects of mingzhu elevated railway and xinmin elevated railway, the author analyses the characters of the design and the application of this technology

    摘要就交通明珠線、莘閔線等工程的連續梁設計中預束體內張拉的實例,分析其設計特點和用。
  4. The asteroids are the most important small bodies in the solarsystem, and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space. the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. ). the characteristic brings about some difficulties in the numerical research during their orbital evolution, which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality. by comparing the computation effects of several common numerical methods ( including symplectic algorithm ), and considering the nature of the movement of the small bodies, the corresponding treatments are provided here to improve the reliability of the computation

    小行星是太陽系最重要的一類小天體,主要分佈在兩個區域;火星和木星之間的一條主帶和近地空間.近地小行星的最大特點是其半長徑與地球半長徑相近,或近日距離接近甚至小於日地平均距離,其運動可深入到地球的內部,這將導致該類小行星與地球(還有金星、火星等)十分靠近甚至發生碰撞.這一特徵給其演化數值研究帶來一些困難,包括天體學方法中一般消除碰撞奇點的正規化處理以及對定性研究十分成功的辛演算法都將在不同程度上失效.通過對幾種常用數值方法(包括辛演算法)計算效果的比較,根據小天體運動自身的特性,給出了相處理措施,從而可提高計算結果的可靠性
  5. 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,從地下空間靜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交通的跨度6米,高7 . 5米的地下隧這一具體工程情況,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交通使用的地下隧圍巖的與位移演變規律進行了有限元數值分析計算,探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響,通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於交通的地下隧狀態等三種不同狀態以及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 )在各種不同狀態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 )相同狀態下不同水平與垂直剖線的_ 1 、 _ 2和_ ( xy )對比分佈曲線; ( 3 )不同狀態下相同水平或垂直剖線的_ 1 、 _ 2和_ ( xy )的對比分佈曲線等,為今後在對地下空間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。
  6. And it investigates the appearance condition ( including joint, crack, eroding, corrosion, braking pole device rupture, crane - girder ' s gnawing railway and so on ) of the whole crane - girder system on the spot, at the same time, it also actually examines the stress of the beam, chemical ingredient, distortion and railway excursion, etc. through sampling, and based on the actually examined results, it checks and calculates the carrying capacity of crane - girder system. then, based on the investigating on the spot and the calculated result, it discusses the mechanism of fatigue failure of the upper part of welded steel crane - girder, analyses the reason of steel crane - girder in the high - frequency emerging the fatigue crack, institutes the strengthened method of damaged steel crane - girder of accurate packing up workshop of the primary mill plant. finally, it presents some advice and suggestions for the repairing and strengthening method of fatigue crack of upper part of steel crane - girder in the high - frequency

    針對包鋼初軋廠精整車間鋼吊車樑上部區域出現裂縫這一問題,本文首先綜述了國內外關于焊接鋼吊車樑上部區域疲勞裂縫的研究現狀;其次對整個吊車梁系統的外觀情況(包括連接、裂縫、腐蝕、銹蝕、制動桿件斷裂、吊車啃等)進行了現場調查,抽樣實測了梁的、化學成分、變形及偏移等,根據實測結果,對吊車梁系統的承載能進行了驗算;然後,根據現場調查及計算結果,探討了焊接鋼吊車樑上部區域疲勞破壞的機理,分析了重級工作制鋼吊車梁出現疲勞裂縫的原因,制定了初軋廠精整車間破損鋼吊車梁的加固方案;最後就重級工作制鋼吊車樑上部區域出現疲勞裂縫的修復與加固方案提出了一些意見和建議。
  7. It include dynamic system which used to describe the motion of orbit and attitude of the space station, gnc system that describe the control of orbit and attitude of the space station system ; power system, that provide the power supply for the space station

    其中:動學子系統描述空間站運行的和姿態運動, gnc系統主要描述空間站的、姿態控制,電系統主要描述空間站的電情況。
  8. In this situation, our government and shipping companies have to develop new ideas, fully analyze what are our advantages and our disadvantages. knowing that out advantages is limited, we should make rules and laws and improve our ability in global economy competition. also we should let our shipping enterprises get into the benign developing way, join the global ocean shipping market and compete healthfully with other countries

    面對這種局面,我國政府和航運企業要有發展的新思路,充分分析利弊所在,了解自身優勢與不足,制定相的法規與措施,興利除弊,使我國航運業盡快逐漸走上良性發展的上來,健康的參與到國際海運市場競爭中去,以承載和支撐我國蓬勃發展的國際貿易,從而提升我國在世界經濟中的競爭
  9. For example, it can be used to drag make - up and solar pressure cancellation of low orbit spacecraft, formation flying and precise positioning of small satellite, repos

    同時, mpt也可用於低( 300 500km )航天器的大氣阻補償,星際航行航天器的主推進,以及星座和小型衛星的編隊飛行和精確定位等,具有廣闊的用前景。
  10. This paper discusses aluminium heat welding principle, the application of aluminium heat welding technology in welding crane rails and infect of long rail temperature stress on buildings

    摘要介紹了鋁熱焊原理及其焊長鋼技術在焊接起重機中的用,並對長鋼溫度對建築物的影響進行了深入分析。
  11. Recently, train is running faster and faster, and considering the stability and security, seamless welded rails ( swr ) are used as the train orbits gradually. the temperature of the rails will vary with weather. so that the rails may release the energy due to the metal characteristic of expanding or contracting with temperature, there is some badly distortion in the swr, worsly occurring accidents on expanding orbits. the portrait thermal stress ( pts ) of the swr should be monitored in some parts regularly, as to avoid such accident

    近年來,隨著火車的提速造成的穩定和安全問題,逐步轉為採用無縫焊接鋼,隨著鋼溫度的變化,無縫鋼可能會因為熱脹或冷縮的金屬特性並且在扣件阻小而且路基較差的路段釋放能量,可能會發生鋼嚴重變形,更甚者會發生脹等嚴重鐵事故,為了避免發生如此事故,有必要定期對鋼的溫度進行檢測。
  12. A simulation system of high precision orbit propagation is constructed in the integrated environment of matrixx, and some problems on the applications of matrixx in aerodynamics are discussed

    本文利用matrixx對衛星精密預報進行了模擬實現,並討論了matrixx在航天動學的用問題。
  13. Using vogel ' s wear index as the rail side wear index, the paper analyzes the side wear variations of rail head when the parameters in the wheel / rail system vary, analyzes the influences of track irregularity on rail uneven wear on gauge corner emphatically. this paper analyzes the rail side wear dates measured by track division of shan hai guan since 1990, then gains the relationship between side wear and traffic volume and sums up the characteristics and regularities in the formation and development of side wear. in the end, some measures for regarding the side wear on curves are put forward

    從輪摩擦、輪接觸幾何關系、輪接觸和輪蠕滑等方面對鋼側面磨耗機理進行了探討,從幾何參數、機車車輛運營條件等方面對鋼側面磨耗的影響因素進行了重點分析和總結;用輪系統動學,建立了輪空間耦合振動時變模型,採用vogel側磨指數作為鋼側磨指標,系統分析了輪參數變化的情況下,頭側面磨耗的變化規律,重點分析了不平順對鋼不均勻側磨的影響;對山海關工務段1990年以後現場測得的曲線鋼側磨數據進行了分析,通過擬合得到了鋼側磨量與運量的關系曲線,並總結了曲線上股鋼側面磨耗的特徵和發生、發展規律;最後提出了一些減緩曲線鋼側面磨耗的措施。
  14. Applications to aerospace engineering are discussed, including introductory topics in orbital mechanics, flight dynamics, inertial navigation and attitude dynamics

    亦將討論動學在航太工程上的用,包含學,飛行學,慣性導航與姿態動學。
  15. 4 ) based on the theory analysis of the equal contact stress inner curve, the experiment research is discussed, and the project of experiment is also designed

    ( 4 )在理論分析等接觸曲線的基礎上,對試驗研究進行了探討,並設計了相的試驗方案。
  16. 2 ) applied hertz theory and the force between roller ( or ball ) and orbit, the equation groups for calculating equal contact stress curve are listed. the answer of the equation groups is calculated by utilizing the software matlab. the result of the simulation to this answer proved that the answer is reasonable and the design rule also be discussed from the analysis result

    ( 2 )用赫茲接觸理論和所求得的與滾動體之間的正壓,分別列出以球和滾子作滾動體的等接觸曲線方程組,利用matlab求解方程組,並對求解結果進行模擬分析,論證了所求的結果在理論上的合理性,歸納出設計這種液壓馬達的注意事項。
  17. 3 ) based on the analysis result of equal contact stress curve and the theory of elasto - hydrodynamic lubrication, the expression of the oil film thickness between roller ( or ball ) and orbit are calculated. the simulation result proved that the thickness of oil film is enough for bearing and lubricating

    ( 3 )基於等接觸曲線的求解結果和彈性流體動潤滑理論,求得滾動體和曲線間的油膜厚度表達式,並通過模擬分析論證了馬達正常工作時這種油膜能滿足承載能和潤滑的需要。
  18. To directly estimate the life of this kind of motor, and to design a orbit curve with the longest life at same condition, this paper gives theoretic research of the equal contact stress inner curve of radial piston motor. the research is divided into four parts : 1 ) taken all forces the piston endured into consideration when radial piston motor working, the force between roller ( or ball ) and orbit is deduced. the simple style of the press expression can be confirmed by ignoring minor influence factors after analysis all factors that will influence this press

    靜壓傳動技術在各類工程機械中得到廣泛的用,對作為其核心部件的徑向柱塞式低速大扭矩液壓馬達的研究顯得十分重要,為了能直接對這種馬達進行壽命估計,並能在相同工況下求得壽命最長的曲線,本文從設計等接觸內曲線的角度對這類馬達作探討性的研究,主要從以下四個方面進行: ( 1 )綜合考慮徑向柱塞式液壓馬達工作時的各種主要受狀況,對柱塞組件進行受分析,並通過模擬分析影響和滾動體間正壓的各個因素,得到正壓的簡化表達式。
  19. Because of continuity of load effects in time and space, displacement effects of previous time period in the latter time period and effects in various places have been taken into accounts. it is on these basis that the paper puts forward the dispersed counting way discrete algorithm based on such relationship, takes time - stepping integration to calculate rails " dynamic response, uses fortran language to write counting program, and conducts computer mock tests about rails " power response

    由於荷載作用在時間和空間上的連續性,因此考慮了前一時間段所產生的位移對后一時間段的影響以及不同位置的相互影響,在此基礎上提出了基於車輪、、枕木相互關系的離散化演算法,採用時間步長積分計算了的動,使用fortran語言編制計算程序對進行了模擬。
  20. The paper tests tracks " dynamic responses by using euler beam model with no accounts of shear and rotary inertia effects and timoshenko model with consideration of shear and rotary inertia effects respectively

    不考慮的幾何不平順,不考慮阻尼,分別採用不考慮剪切效和轉動慣量作用的euler梁模型和考慮剪切效和轉動慣量作用的timoshenko梁模型對進行了模擬。
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