重沖擊荷載 的英文怎麼說

中文拼音 [zhòngchōngzǎi]
重沖擊荷載 英文
heavy impact load
  • : 重Ⅰ名詞(重量; 分量) weight Ⅱ動詞(重視) lay [place put] stress on; place value upon; attach im...
  • : 荷名詞(蓮) lotus
  • : 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 ...
  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

    人體脊柱動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的極限問題都具有要意義.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動力學模型,此時考慮脊柱的大位移運動,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. By the check - out, inspection and measurement to start construction the industrial art to this test pile with the examination between stake body mass and bearing power, made sure the stroke reasonable operation method drilling under the dissolved cavern geology term ; the pier foundation loading test expressed the lading and rub the lading that resistance drag a glazing for of relation, and to the borehole cast - in - place concrete pile in the karst terrain deliver with break the mechanism, the characteristic of bearing power, proceeding the spot test job of the full of result ; the test data expresses the stake side friction resistance to rises with a bat batch terminal friction resistance very important function, the of tip of pile resistance drag occupies the proportion very few

    通過對本次試樁施工工藝的檢測和樁身質量及承力的檢驗,確定了鉆在溶洞地質條件下的合理使用方法;基樁承實驗表明了與摩擦阻力之間的關系,並對巖溶地區的嵌巖灌注樁的傳遞和破壞機理、承力特性,進行了富有成果的現場測試工作;試驗數據表明樁側摩阻和支盤端阻起很要的作用,樁端阻力所佔比例甚少。這與設計樁基時的計算模式相差很大,承力也較設計增加;使用力學數值分析方法和有限單元法,對鉆孔灌注樁樁端下的巖體強度和結構穩定性方面進行模擬計算和定量研究。
  3. 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

    下彈性桿端的作用力-位移關系曲線是機械繫統研究的要內容.基於一維波動力學方程,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-位移曲線的測試原理與數據處理方法,以及在花崗巖上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
  4. The dynamic response of cylindrical shells and conical shells under radial non - uniform impulsive loading has an important application in the filed of military and civil engineering. in this dissertation, the problem of transient response of the cylindrical shell under longitudinal line - loading and that of the conical shell under cosinoidal impulsive loading are studied, and some useful conclusions that have important significances in both theoretic studies and engineering applications are obtained

    圓柱殼和圓錐殼在側向作用下的動力響應具有要的軍事和民用工程背景,本文對縱向線作用下的圓柱殼瞬態響應問題和餘弦作用下的圓錐殼瞬態響應問題進行了研究,取得了一些具有要理論意義和實用價值的研究成果。
  5. How to precisely simulate the landing process of an aircraft and effectively absorb aircraft landing kinetic energy to attenuate the impact loads on aircraft is a problem facing the landing gear community

    如何精確模擬飛機著陸過程起落架和機身的動態響應,並據此設計減小飛機著陸過程中的的方案,一直是飛機起落架設計和分析中的要課題。
  6. As one part of the research program of study on reliability of stability of high rock slope and optimization of support, the thesis does further study on blasting and achieves some results as follows : ( 1 ) the interaction of shock wave and explosive gas due to blasting is the important cause to the destroy of the rock. the rock in the line of every hole is easiest to be destroyed while single - row blasting. dynamic loads of blasting can be simplified to triangular loads

    本文作為「巖質高邊坡穩定可靠性與支護結構優化研究」研究課題的一部分,對邊坡工程中的爆破施工進行了深入的研究,主要取得了以下成果: ( 1 )波和爆生氣體的共同作用是引起巖石破壞的要原因;單排爆破中炮孔連心線上最容易破壞;爆破動力可以簡化成三角形
  7. The landing impact has been recognized as a significant factor in structural fatigue damage, dynamic stress on the aircraft airframe, and crew and passenger discomfort

    而這種被認為是造成飛機及其起落架結構發生疲勞與振動破壞、引起乘員不舒適的要因素。
  8. Because of above demands, the program of simulation of response of the impact load is generated by fepg, deeply analysis to the program shows the meanings of parameters, function of subroutines and interface files, and compared with the result of experimentation, which indicate the difference is small enough, so can generate the computing source program of the grid structure. as the beginning research of the load identification, this thesis discusses the recognisation of cantilever beam by ga, and the result is well, but the program is limit by number of the parameters. finally show the path of accuracy improvement

    基於上述要求,本文利用fepg對格柵結構在作用下的響應進行了數值模擬,生成了計算源程序,並對源程序做了詳細而細致的分析,對內部各程序中的變量含義、子程序功能和文件介面做了詳細說明,並將模擬結果與實驗結果作了比較,結果表明, fepg在格柵結構的計算結果與實驗結果相差較少,可以用來生成計算源程序,為下一步的格柵結構構研究提供參考。
  9. In the recent twenty years, the forecast of wave slamming loads in the design of coast and offshore engineering has become a new subject

    近二十年來的預報在海岸和近海工程設計中越來越受到視,已形成一個新興課題。
  10. 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。
  11. In practical engineering, reasonable solution of some important and key problems in common, such as the stability of the side slope in the explosion of water conservation construction ; using explosion to improve the productivity in oil production etc., require the thoroughly research on the dynamic mechanics of fluid - saturated porous media under impacting loading from the theories, numerical simulations and experiments

    在實際的工程應用中,大水利工程爆破施工時巖土邊坡的穩定性問題;採用爆破技術在油層中製造波以提高出油率時油層中的響應,以確定爆炸工藝對提高石油生產率的有效性等關鍵性技術問題的解決都要求對含有液體的多孔介質在動作用下的力學行為進行深入的理論、數值和實驗研究。
  12. Abstract : based on spline function method, the spline finite element formulation for the contact - impact problems is proposed. in order to get the formulation, the b3 spline function is used to distribute the contact problem, and numerical examples are analyzed to show the effectiveness of the method. because the spline function has double characteristics including analytical and numerical, and good continuity and high correctness, a little unknown number and high efficiency, the spline functions are used to set the displacement of the bar, and the whole structure equations are constructed directly. it is convenient to analyze dynamic response of the structure by using the method

    文摘:用樣條有限元法分析了桿的接觸動力響應問題,建立了計算格式,並用算例說明該方法的有效性.該方法充分利用了樣條函數的解析和數值雙性及連續性強的優點來構造桿的位移函數,因此可推廣應用於分析結構在下的動力響應問題
  13. With the development of the modern industries, the applications of the low speed and heavy load rolling bearings have being more and more extensive

    低速滾動軸承是一種承量大、工作轉速低的特種滾動軸承,並且運行中承受較大
  14. The main achievement of the paper is to recommend the 90 point as the best place for sensor by the contrast of numerical calculation results and test signals. on the point the high frequency disturbing signal was weakened very much when the load impulse was changed, which could be explained when vibration shape was considered

    本文最要的工作是通過數值計算與實驗的對比確定點作用下傳感器的最佳接收位置,即距離加點相對于管樁截面中心夾角為90的點。
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