速度時間曲線 的英文怎麼說

中文拼音 [shíjiānxiàn]
速度時間曲線 英文
speed time curve
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
  • : 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...
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 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...
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. (快慢的程度) speed; rate; pace; tempo
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. By hydraulic modeling, this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water, and it ' s hydrodynamic stability characteristics that distinguish in standing water from in flowing water ; and direct measurements of the forces acting on the model floating body during floating and sinking is taken. as a result, the rotation stress curves are produced and analyzed ; to provide data for optimum operation schedule analyses of the sluice, the relationship of the impact forces acting on the side wall of the gate and the running speed is studied ; the reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper

    本文結合常州新閘防洪控制工程水工模型試驗,系統分析了浮箱門在靜水和動水中的穩定性及其影響因素,指出靜水穩性和動水穩性的不同特點;試驗測定了浮箱門動水運行的受力情況,給出並分析了定位過程轉動力的變化過程;根據浮箱門啟閉與門體和岸墻之撞擊力大小的關系,選擇合理的動力設備,為設計和工程實踐提供可靠依據;分析浮箱門難以穩定上浮的原因,並給出解決方案。
  2. The higher speed of tilting trains mainly depend on increasing the curving negotiate speed, but which will produce larger centrifugal acceleration, reduce the passenger " s ride quality, enhance the lateral force and make the wear serious between wheel and rail

    擺式列車主要是依靠提高通過達到提的目的。車輛通過提高后,將產生較大的離心加。其結果不僅降低旅客的乘坐舒適,同將加大輪軌橫向力和加劇輪軌的磨耗。
  3. The curves of the consolidation settlement in soft clay base of flood land are gained, which compare the effect of sand drain. the settlement - time curves in different period are also gained, which increase the height of embankment to 8m, based on the test data of hang - yong highway. furthermore, the consolidation settlement characters of these entity engineering are analyzed, and, the variation rules of the rate of grade and degree of the curves in different period in the whole section, the maximal settlement and the liner regression relations between the rate of grade and degree are calculated

    本文利用大變形固結有限元分析程序( lscfea )中的小變形平面固結分析單元( sse2 ) ,結合實體工程項目進行了地基固結沉降的有限元計算,分別得出河灘相軟土地基在考慮砂井和未考慮砂井作用下的固結沉降及杭甬高公路試驗段在高堆載情況下的固結沉降;並對以上特徵進行了分析,得出各斜率、角在整個斷面的變化規律,以及沉降最大值與斜率、角變化之性回歸關系。
  4. Abstract : determined the power - time curves of the promoter bacteria of ganoderma lucidum for e. coli, using 2277 thermal activity moniter, a new experimental model of promoter bacteria growth were established. the growth rate constant and heat output at different concentration of ganoderma lucidum have been calculated. from - c and q - c curves the optimum concentration has also been established

    文摘:用熱活性檢測儀測定了天然藥物靈芝對大腸桿菌起促菌作用的熱功率-,並根據建立了細菌生長的新的實驗模型,按新模型計算了促菌作用下的生長率常數,發熱量及最佳促菌濃
  5. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺傳演算法的直流雙閉環調系統參數優化設計方法.根據工程技術的要求,選用超調量和過渡作為參數優化性能指標.將該指標用模糊隸屬函數歸一化,再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法,通過模擬獲得系統對應參數的動態響應及其性能指標.最後以工程設計的參數為搜索范圍,以調節器和電流調節器的參數為染色體中的基因,通過遺傳演算法在搜索范圍中優化這些基因,獲得優化解.實驗結果表明,所設計的參數能使系統性能指標有顯著提高
  6. Tooth surface equations and contact line equations of the involute worm gearing are established according to its machining methodology. meshing characteristics in rigidity condition are studied. these characters include the inductive normal curvature along the contact line on the worm surface, the first and the second limit lines during the engage of the worm gear, and the influence of the intersect angle between the contact line the relative velocity of the worm and the gear on transmission performance

    根據漸開圓柱蝸桿傳動的創成方法,建立了漸開圓柱蝸桿和蝸輪的接觸方程式、齒面方程式,分析了漸開圓柱蝸桿傳動的剛性嚙合特性,如蝸桿與蝸輪嚙合的誘導法率、一類界限、二類界限和蝸桿與蝸輪相對方向和接觸方向的夾角對傳動性能的影響; 2
  7. Find the law of the influence from the injection pressure to the filling time and the cavity pressure and make certain of the best filling time, injection time and injection pressure. though the analysis of the flowing velocity and pressure spread of the key position element in the injection parts in different gate position, we forecast the injection parts quality and the possibility injection flaw and its position, optimize the gate position. in this paper, though the research of analogue of the runner system of metal - powder injection molding and the process of injection molding, we get the law of how the injection parameter influence the injection process

    在相同的注射條件下,通過分析喂料在不同直徑和長流道中的流動規律,得到了喂料在流道中的場、壓力場和溫場,找到了流道長徑比的合理取值范圍,並得出通過改變流道設計可實現對現有設備資源充分利用的結論;給出了不同注射壓力下,型腔壓力與充模關系和喂料熔體平均充填與充模關系的,得到了注射壓力對充填和型腔壓力的影響規律,確定了最佳的充模、注射和注射壓力;通過分析採用不同位置澆口注射注射件關鍵位置單元的流動和壓力分佈,預測了注射件的成形質量,或可能產生的注射缺陷及位置,優化了澆口設置。
  8. In the isothermal crystallization experiment, the dsc exothermic curves become flat as decrease of the degrees of undercooling within the experimental temperatures

    在等溫結晶實驗中,在所測試的結晶溫范圍內,隨著過冷的減小, dsc放熱趨于變緩,結晶完成延長,結晶率減小。
  9. Two transducers b and c, which record the time when the shock wave front arrives, are placed on both sides of location ( a ) with equal distance, the average shock wave speed at location ( a ) can be calculated from the distance b to c and the time that the shock wave needs to travel from b to c. all the tested signals are stored on a pint - sized system of independent function

    測壓的方法是指在測取沖擊波壓力-的同,在被測點前後等距離處分別安裝壓力傳感器,記錄沖擊波上升前沿到達的刻,通過差來獲取被測點處沖擊波的平均。所有的測試信號都被記錄在同一個小型的、能獨立工作的測試系統中。
  10. The paper formulates the dynamic analyses of hydraulic operating mechanism in large space, established mathematical model, presents methods of differential equation system, and corrects its parameters concerned in process of solution. after the unloaded characteristics calculation and test under real condition are developed for type lw - 252 breaker equipped with hydraulic operating mechanism, the time - displacement cures and the velocity - displacement cures are obtained

    本文對液壓機構的分析,用了大量的篇幅,建立了數學模型,給出了其方程組的求解方法,並對求解過程中所涉及的系數給予修正,在此基礎上對本課題研製的配液壓機構lw - 252斷路器進行了實際條件下的空載特性計算及實驗研究,獲得了斷路器的? ?位移? ?位移
  11. This is the theoretical foundation for simulating the gun interior ballistic performance using the closed vessel experiment. based on the functions from closed vessel experiments, the ballistic simulation results of maximum chamber pressure, muzzle velocity and p - t curves of a 105mm gun charged with ltsc nitroamine propellant at + 50c, + 15c and - 40 environmental temperature were in good agreement with experimental data

    在密閉爆發器實驗的基礎上,應用可視化程序對某105mm火炮採用低溫感硝胺火藥在+ 50 、 + 15和- 40環境溫下的最大膛壓、初以及膛壓?進行了彈道模擬,模擬與實驗結果具有較好的一致性。
  12. Based on the resolving algorithm of continuous - layer method, the time order analyzing curves, acceleration curves and the response spectra of transfer function at the different points of the ground and at the same point on the different ground conditions are gained. it demonstrates that the responses of ground in x, y and z axial directions all change by time, and the obvious wave propagation appears in ground. for different observing points on the same ground condition, at more distant points from the load line, the less swings are found, that is to say, vibration possesses the obvious characteristic of attenuation

    基於分層法的解析演算法,得到了在不同點以及在同一點但不同地質條件下的程分析、加變化和傳遞函數反應譜,結果表明,地基土在x 、 y 、 z三個方向的響應都是隨變化的,並且伴隨有明顯的波動現象產生;對于相同地質條件的不同觀察點,距離荷載作用越遠的地方振幅越小,即振動具有明顯的衰減性。
  13. It really provides convenience to evaluate and optimize the design result. 3 ) vibration analysis has been fulfilled by calling some math libraries and graphic libraries in matlab to plot graphics such as velocity - time, displacement - velocity, step response, impulse response, gain - frequency and phase - frequency. we can know the capabilities of the spring system from the graphics

    3 、在matlab環境下調用相應的數學函數庫和圖形庫對設計的彈簧進行分析,繪制彈簧加載后系統的-響應-位移響應、階躍響應、脈沖響應、增益-頻率響應和相角-頻率響應,根據來分析系統的各項性能。
  14. In this paper, the temperature fields during liquid infiltration extrusion of composites are simulated with the fem, the seepage fields of liquid metal are simulated with the fdm. both the temperature fields and the seepage fields are coupled, the temperature variation curves, infiltration front process curves and velocity variation curves with time are obtained

    本文採用有限元法模擬了液態浸滲擠壓復合材料浸滲過程溫場,採用有限差分法模擬了液態金屬滲流場,將兩者接耦合分析計算,得到了浸滲區域的溫變化、浸滲前沿及浸滲變化等
  15. Exploiting the long jump technique parameter and treading strength in the planting step - time curve, and analyzing the kinematics and dynamics reasons for the loss of approach velocity, taking - off rapid supporting and stretching in the generating mechanism of vertical velocity during long jump take - off, the essay puts forward a new view of generating vertical velocity and offers a new thought for creating training of long jump

    摘要利用世界優秀運動員的跳遠技術參數和跳遠踏跳階段踏跳力,剖析助跑損失量、起跳快支撐和蹬伸在跳遠起跳垂直的生成機制中的運動學和動力學原因,對跳遠垂直生成提出了新的見解,並為創新跳遠訓練提供了一條新的思路。
  16. A new data storage structure is designed to resolve the difficulty in arrangement of unorderly intersection points and accelerate the measuring process during curvilinear distance between two points measuring

    本文在實現空兩點距離的測量,設計了一種新的數據存貯結構,解決了雜亂交點的排序這一難題,提高了測量
  17. The corresponding variation of olltput voltage due to the change of total laser intensity is measured by a photo detector. a displacement - time curve can be obtained by calibrating the re1ationship between block position and output voltage of the photo detector. through the use of simple mathematical operation, the bird - shell velocity and acceleration histories can be determined, and therefore the bird - shell instantaneous velocity at any points within the measurement range can be obtained

    該系統發射的一片狀激光受運動鳥彈的依次阻擋后,相應的光強變化將被測出並轉換為位移,經過簡單的數學運算,該系統能用來確定鳥彈和加歷程,因而可確定鳥彈在被測區域內任一點的瞬
  18. In the aspect of the time - optimal control algorithm, with the special trajectory, a method for seeking scalar velocity bound curve and scalar acceleration limit has been proposed, which fully considered the dynamics nonlinear

    在機器人最優控制演算法方面,提出一種在特定軌跡約束下尋求標量邊界和標量加極限分佈的方法,其充分考慮了機器人動力學的非性因素。
  19. By analyzing the scalar velocity bound curve and combining distribute of acceleration limit, a time - optimal control algorithm was designed. the results of experiments show it can make full use of the capacity of motor while realizing the stability and positioning accuracy of system, solving the problem of time - optimal control

    通過對標量邊界的分析,結合加極限分佈情況,設計了一種在特定軌跡約束下機器人最優軌跡規劃演算法,以在保證系統穩定性和定位精的前提下,充分發揮電機的性能。
  20. Moreover, when the filaments are treated for 12 minutes, the interfacial shear stress will be lower than that treated for 6 minutes. izod pendulum is used to test the influence of the fiber / matrix bond strength on the low velocity impact responses of the composites. the curves of energy - time, force - time and velocity - time are obtained by a data acquisition system

    用擺錘低沖擊儀對界面粘結強不同的材料進行沖擊試驗,藉助數據採集系統得到沖擊過程中材料吸收的總能量、承受載荷、擺錘等參數與的關系,並通過pc機處理,將載荷?轉化為載荷?位移
分享友人