移動載荷 的英文怎麼說

中文拼音 [dòngzǎi]
移動載荷 英文
moving load
  • : Ⅰ動詞1. (移動) move; remove; shift 2. (改變; 變動) change; alter Ⅱ名詞(姓氏) a surname
  • : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • : 荷名詞(蓮) lotus
  • 移動 : 1 (改換原來的位置) shift; move 2 [力學] translation motion; removal; shifting; dislocation; dis...
  • 載荷 : load; loading載荷變化 load fluctuation; variation in load; 載荷裝置 load device
  1. Establishing an human spine dynamic model is an significan event to study spine injured biomechanics of pilot " s ejective injury, parachute opening, landing and study the endurance to impact loading on human spine. in this paper, the huston " s method of kane " s equations is developed so that it can be applied to the multibodysystem including translation between the bodyies. the dynamic model of human spine is provided basing on these theories, while the big movement of spine is considered. the deformation of vetebra is far smaller comparing with the intervetebra disc, so the spine is considered into multibodysystem including rigid bodies ( vetebra ) and the flexible bodies ( intervetebra disc ). the computer solution correspond with the results of the large scale human impact test. the rigid coefficient factors and the damping factor of intervetebra joints are obtained

    人體脊柱力學模型的建立對研究飛行員彈射救生、傘兵跳傘開傘、著陸等脊柱損傷的生物力學以及研究人體脊柱耐受沖擊的極限問題都具有重要意義.首先發展了凱恩方程的休斯頓方法,使其可應用於變形體連接的多體系統,並以此理論為依據建立人體整椎脊柱沖擊力學模型,此時考慮脊柱的大位,每個椎骨的變形相對椎間盤的變形小得多,把脊柱看成由剛體(椎骨)和變形體(椎間盤)組成的多體系統.並以大型真人坐姿沖擊實驗結果進行了擬合,最後得到腰椎間關節剛度系數因子和阻尼系數因子
  2. The dynamic force - displacement relation curve is of crucial important to the design and operation of mechanical impact devices. using one - dimensional wave mechanics and characteristic line theory, this paper presents a testing method for determination of dynamic force - displacement relation curve from one - point strain measurement on an elastic rod endface. the principle of measurement, data processing method and experimental results for penetration into granite are discussed. 4figs., 5refs

    沖擊下彈性桿端的作用力-位關系曲線是沖擊機械繫統研究的重要內容.基於一維波力學方程,應用特徵線方法,探討了已知一點應變求取彈性桿端的作用力-位曲線的測試原理與數據處理方法,以及在花崗巖上沖擊鑿巖機具的測試結果,對一點應變測試法的可行性進行了論證.圖4 ,參5
  3. Solving the wire loop profile for which nonlinearity mainly caused by plastic - elastic forming is a challenging work, a finite element model has been proposed to simulate the wire loop profiling, in which beam23 has been selected as calculating unit, and the trajectory of capillary is divided into many displacement loads and applied on the wire step by step

    摘要針對引線成形過程中的材料非線性和幾何非線性問題,選用塑性變形梁beam23單元建立有限元模型,通過時引線分階段分步施加位模擬鍵合頭的運軌跡,求解得到相應的引線輪廓形狀。
  4. According to the frndamental and the steps of this method, we cans use the linear regress filter method to make the simulation of the wind load and then we can educe the curve of the time - process wind velocity. after that step, we can get the chart of the dynamic wind load which we can deliver the crosswind into the particle wind load and put them on the corresponding cell nodes. then we can do the analysis of the dynamical wind load through the time - process analysis to get the max value of the displacement

    根據線性回歸濾波器法的基本原理和步驟,藉助相關軟體進行風的人工模擬並得出風速時程曲線,進而轉化為風力譜,由此將橫風向風力表達成節點風作用於相應的單元節點上,按時程分析法對該空間桁架體系進行風力分析,求出結構在進行風分析時,結構相應節點對應的最值位值。
  5. The bridge not only resists the static loads but also the moving loads and the actions of vibrational inertia force of vehicle and bridge

    這時,橋梁結構不僅承受靜力的作用,還要承受以及橋梁和車輛的振慣性力的作用。
  6. According to the theory analysis and engineering practice, the application of natural vibration features in bridge inspection is introduced. during the transient dynamic analysis of pubugou cfst arch bridge, the time history responses of the structure under uniform velocity moving load and impact load are analyzed, and the amplification coefficients of deflection and internal forces of the structure are intensively analyzed

    在瀑布溝大橋的瞬態力分析中,模擬分析了當以不同速度通過橋面時的時間歷程力響應以及在沖擊作用下橋跨結構的時間歷程力響應,並對橋跨結構在和沖擊作用下的力放大系數作了較為詳細的分析。
  7. Numerical simulation on bridge under a moving load

    梁橋受作用的數值模擬
  8. Rolling bearings - linear motion rolling bearings - part 2 : static load ratings

    軸承.線性軸承.第2部分:靜態
  9. When the transportation load is long - term evenly distributed, the influences of each relevant factor, i. e. pipeline depth, diameter, deformation module of foundation, poisson ratio of soil and tyre pressure of vehicles, toward mises stress and vertical displacement of pipelines are discussed. when the transportation load is movable and invariable, the changing rules of mises stress and vertical displacement during the vehicle ' s movement are calculated and analyzed, and effects of vehicle velocity and tyre pressure toward these two mechanical characteristics are discussed. when the transportation load is stable and simple harmonic, the changing rules of mises stress and vertical displacement during the time of load function are calculated and analyzed, and effects of vehicle velocity and tyre pressure toward these two mechanical characteristics are also discussed. in three - dimensional analysis, mises stress and vertical displacement of pipelines under three kinds of transportation loads are calculated, and the analysis and discussion of correlative factors are also made

    當交通為長期均布時,討論了各相關因素,包括管道埋深、管徑、地基變形模量、地基泊松比和車輛輪壓大小分別對管道mises應力和豎向位的影響;當交通時,計算並分析了車輛行駛過程中管道mises應力和豎向位的變化規律,討論了車速和車輛輪壓對這兩個管道力學性狀的影響;當交通為穩態簡諧時,計算並分析了作用時間內管道mises應力和豎向位的變化規律,討論了車速和車輛輪壓對管道力學性狀的影響。
  10. After it starts, not only adds 35 % pressure to edge of shovel, also moves the part weight of front shaft of vehicle to the tail shaft, which can improve 25 % frictional resistance

    系統啟后,不但能對雪板的鏟刃增加35 %的壓力,而且還會把車輛前軸的部分至后軸,這樣可提高25 %后輪對地面的摩擦力。
  11. The key technology of the moving load identification is realized with the certain precision by using the generalized ortho - polynomial method, and the dynamic moving load identification model in generalized ortho - polynomial domain is established

    本文在勻速的基礎上,將時域識別的方法推廣運用到變速運,運用廣義正交變換技術研究了移動載荷識別的新方法,並推導出了在廣義正交域下移動載荷識別的數學模型。
  12. During the study, we introduce a new method named the changeable static load method to analyze road response under moving vehicle, and finally solve the problem with fem

    在研究過程中,作者提出了靜轉化法,並引入力計算的有限元數值演算法,解決移動載荷或隨機作用下路面響應的分析問題。
  13. Now, the scholars of internal and overseas pay close attention to the mechanics function of sfrc, such as in the references [ 3, 13, 14, 16, 23, 27, 28, 29 ], and so on. however, in the practice pavement engineering project, the sfrc is given not only the effect of vehicle and shock load, but also the effect of the temperature changes and sun radiation. therefore, the temperature and load stress are the main factor of the damage of the rigid pavement structure. because of the existent of the temperature stress, the sfrc pavement structure may be destroyed by the expand of crack. therefore, the research and analysis of the temperature load and stress of sfrc pavement structure are important to control the crack of sfrc pavement structure

    目前,國內外學者對鋼纖維混凝土的研究著重於鋼纖維混凝土的力學性能,如文獻[ 3 , 13 , 14 , 16 , 23 , 27 , 28 , 29 ]等。而鋼纖維混凝土在實際路面工程的應用中,不僅要受到路面車輛移動載荷和沖擊的作用,還要承受路表的溫度變化及日輻射的作用,所以溫度應力與車輛應力同樣都是剛性路面產生破壞的主要因素。由於溫度應力的存在,會引起鋼纖維混凝土路面板結構產生裂紋。
  14. The dynamic moving load identification model with the non - fixed velocity in time domain is established

    摘要橋梁結構的移動載荷識別技術是橋梁工程建設的技術難點之一。
  15. It is a good assurance for reliability and security of road surface structure to identify pavement moving loads accurately

    準確識別路面移動載荷是確保公路路面結構可靠性與安全性的重要保證。
  16. In addition, aerodynamic stiffness and aerodynamic damping on the system are already obtained in the condition of fluid - structure interaction. it is known that aerodynamic loads are associated with blade vibration. the systematic eigenvalues are used to judge whether the flutter occurs so as to find the stable operating range of a wind turbine

    本文把風力機葉片簡化為懸臂梁,對梁截面的二維葉型建模,完整推導了二維葉型的線性運微分方程和流構耦合條件下系統的氣剛度和氣阻尼,此時氣與結構的位矢量以及速度矢量是相互耦合的,再利用系統的特徵值來判斷葉片顫振是否發生,從而獲得風機的穩定工作范圍。
  17. Results show that the model is suitable for the moving load identification of the bridge and provides a foundation for the development of the dynamic moving load identification

    該模型適用於橋梁結構的識別,為移動載荷識別技術的發展打下一定的基礎。
  18. The influence such as the arranging of measurement sensors, wavelet ’ s resolution ( related to sampling frequency ) is also discussed. conclusions are : ( 1 ) there is critical resolution existing in moving force identification. when the resolution is lower, large local error arises, and when higher, good results will be present

    本文還研究了小波解析度(與信號采樣頻率關聯) 、測點排布等因素對識別結果的影響,得出如下結論: daubechies ( 1 )在車橋系統的移動載荷和預應力識別過程中存在臨界解析度,低於此解析度會導致產生局部較大誤差,高於它時識別效果良好,且隨著解析度的增大會有微小改善。
  19. The main idea makes use of daubechies orthonormal bases to transform the differential equations into linear equations in wavelet space, and then solve the set of simultaneous equations to get the solution, transform the solution back into physical space to identify the moving loads or the prestressing force. numerical simulations demonstrate the efficiency of the method using selected measurements

    該方法的思路是先對車橋系統進行有限元建模,再利用小波基將力學方程導入小波空間,求解關于響應與的小波系數的線性方程組得到小波系數,重新導入到物理空間求得所需識別移動載荷
  20. The load environment of bridges is a very important factor for bridge maintenance and condition assessments 。 many researchers have paid great attentions to the moving loads on the bridge. the bridge - vehicle system is modeled by two axles vehicle model and simple - supported beam ( include prestressing force or not ). using wavelet - galerkin method for solving equation of motions, a new moving force identification method is developed in this thesis based on finite element method

    在基於車橋系統移動載荷識別的有限元法的基礎上,引入了微分方程求解的小波伽遼金法,將小波分析的方法應用於移動載荷識別當中,建立了一種基於有限元和小波伽遼金法的一種新的車橋系統移動載荷識別方法。
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