脈動載荷 的英文怎麼說

中文拼音 [màidòngzǎihé]
脈動載荷 英文
fluctuating load
  • 脈 : 脈名詞1. （動脈和靜脈的統稱） arteries and veins2. （脈搏的簡稱） pulse 3. （像血管的組織; 連貫成系統的東西） vein
  • 載 : 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 : 荷名詞（蓮） lotus
  • 脈動 : [物理學] [天文學] pulsation; pulsing; pulse; ripple; impulsive motion; pulsating; panting; loping...
  • 載荷 : load; loading載荷變化 load fluctuation; variation in load; 載荷裝置 load device
  1. In the dissertation ' s chapter 3 to chapter 5, the mechanical and physical performances of the engineering plastics are analyzed, the failure mode and the designing computing methods of engineering plastics member suffering the static load, dynamic load, impact load, pulse load, are studied. by the practice application and ball firing experiment of the engineering plastics key piece in the weapons, the precious experiences, for engineering plastics application and confirmation of the material performances guideline in the weapons, are obtained

    論文的第三章至第五章，分析了工程塑料物理機械性能，研究了受靜載荷、動載荷、沖擊載荷及脈沖載荷下工程塑料構件的失效模式和設計計算方法，通過工程塑料在槍械關鍵受力結構件上的實際應用和實彈射擊試驗，取得了寶貴的經驗，為高性能工程塑料在槍械上的應用和材料性能指標的確定奠定了基礎。
  2. The characteristics of high pressure gyratory sprayed pumping discusses is presented, which is applicable in wide range of scope and ground layers, convenient for construction, long durability, wide source of materials. mechanism for subgrade strengthening : complex foundation of cement solid and earth between piles was formed by pulsant load of flowing pressure and spraying flow, water wallop, cavitation phenomenon, water wedge effect, extrusion force and air flow agitation etc so as to enhance foundation bearing force and reduce settlement and deformation

    高壓旋噴注漿技術具有適用范圍、適用地層較廣，施工方便，耐久性好，材料廣闊等特點；其加固地基機理主要是通過流動壓、噴射流的脈動負荷、水塊的沖擊力、空穴現象、水楔效應、擠壓力、氣流攪動等效應形成水泥固結體與樁間土的復合地基，從而提高地基承載力，減少沉降變形。
  3. In chapter 3, the subgrid eddy - viscosity model for large eddy simulation is applied to calculate the three dimensions unsteady periodic turbulent flow in yantan francis turbine. the pulsating characteristics of some main physical parameters in flow field are found. the calculated axial water thrust of hydraulic turbine agrees with the model - test value

    第三章採用大渦模擬亞格子渦粘模型，對巖灘混流式水輪機的流場進行三維非定常湍流分析，得到了流場中各物理量的脈動特性，計算出ms的軸向水推力與模型試驗值大小相當；同時論證了對于下機架承重的混流式水輪發電機組可採用其推力軸承負荷作為水電站廠房振動的最大垂直激振荷載。
  4. Simulation of fluctuating wind load on high rise tower and analysis of wind - induced vibration response

    高聳鋼塔結構的脈動風荷載模擬及結構風振響應分析
  5. Along - wind loading is digitally simulated with the aid of random vibration theory and used as load input of dynamic analysis of wind - excited tower

    本文利用隨機振動理論模擬了合肥電視塔的順風向脈動風荷載，並進行了合肥電視塔的風振反應分析。
  6. According to the fluctuating property of wind, on the stochastic vibration finite element theory, some calculation formulas of the response, including the along - wind response and the across - wind response, are obtained, the ideology of the torsion vibration in the double - tower structure and the ideology of the double - tower structure ' s dynamical wind load are also put forward at the same time. by using the stochastic vibration module of the general finite element program, the paper analyses the performance of the wind resistance more deeply and fully, discussing the influence on the double - tower structure from the diversification of the different component. the variance law of dynamic displacement and wind - induced vibration coefficient is derived through analyzing structure stochastic vibration, so is the effect of several parameters on dynamic displacement, acceleration and wind - induced vibration coefficient

    從結構風振的基本理論出發，通過對脈動風功率譜的分析，推導了結構風振響應（順、橫風向）的計算公式，同時提出了雙塔結構的扭轉振動和動力風荷載計算的思想，在結合通用有限元程序的隨機振動模塊的情況下，對雙塔結構的抗風性能作了深入、全面研究，探討了雙塔結構構件截面的變化對其抗風性能的影響，同時探討了順風向風速譜的選取、風速、參與計算的振型數、風與結構耦合作用是否考慮等因素對分析結果的影響，比較了規范風振系數的計算與隨機演算法結構的異同，並討論了原因，得出一些有意義的結論。
  7. In this paper, the wind loading time history of the truss structure is simulated according to the data of wind tunnel experiment and pulsating wind spectrum, and the transient dynamic analysis is used on the fem

    本文依據風洞試驗數據模擬了靜風壓的空間分佈，依據脈動風譜模擬了網架結構的風荷載時程，並對有限元模型進行了有限元瞬態動力學時程分析。
  8. Finally the wind - induced dynamic responses of suspension cables are discussed and a typical numerical example is presented. in this dynamic analysis the fluctuating wind - load function modeled from a certain wind speed spectrum is taken as the dynamic loading

    最後進行了懸索的風振響應分析，採用了由脈動風速譜模擬得到的脈動風荷載，並對一典型懸索在不同脈動風譜下的振動響應進行了實例計算。
  9. After the discussion of the numerical simulation method based on the fdtd method and the pml technique, the motions of the charges and the electrical field lines were first employed to describe the radiation procedures of the pulse electromagnetic waves. then the causes of how the charges are accelerated and how the motion status of the charges are maintained were further studied from the angle of interaction of charge and field. after these analyses, it was pointed out that the pulse radiation is due to the suddenly occurred time - varying electrical field ( displacement current ) in the open space. this view was further evidenced by two examples : one is the partly resistance loaded antenna, the other is the partly curved antenna. the radiation procedures of the pulse electromagnetic waves of many different situations were simulated throughout this paper with the contours and waveforms of electric field given. these figures are very helpful to the understanding of the radiation mechanism of the pulse electromagnetic waves

    在討論了基於時域有限差分法和完全匹配層技術的數值模擬方法之後，首先從運動電荷和電力線的角度直觀地描述了脈沖電磁波的輻射過程，然後進一步從場與電荷相互作用的角度分析了天線上電荷是如何被加速以及如何維持其運動狀態的，指出了開放空間中突然出現的時變電場（位移電流）是脈沖電磁波輻射的根本原因.文中還對局部電阻加載的天線和局部彎曲的天線進行了研究，以進一步說明上述觀點.對多種情況下的脈沖輻射過程進行了數值模擬，並給出了電場的等高線和空間波形圖，這些圖形對理解脈沖電磁波的輻射機理非常有益
  10. This paper selects the pulsating wind power density spectrum of davenport and simulates the wind speed time series and the wind load time by matlab. considering the vertical and horizontal correlation of the pulsating wind, the study make use of the time domain analysis of buffeting to carry out the transient dynamic analysis of the whole frame structure which is loaded by the random pulsating wind load. finally, in terms of the whole frame of the pipe belt conveyor, the evaluation for

    選取davenport脈動風功率譜，利用matlab模擬脈動風的風速時程曲線和風荷載時程曲線，並考慮脈動風的空間豎向和側向相關性，利用抖振時域法對整體機架結構進行隨機脈動風壓作用下的瞬態動力學分析，最後再對圓管帶式輸送機整體機架結構對環境風荷載的適應性做出評價。
  11. By employing cole ' s classical theory of bubble dynamics, the motion of bubble produced by the underwater explosion and the corresponding bubble pulsating pressure are calculated. a profile function of the shock wave and its parameters are determined according to the principle of wave profile similitude and the equality of impulses. finally an analytic formula is derived to simulate the whole time history of the pressure from the front shock wave to the bubble pulsation, representing the fluid loadings of the underwater explosion

    木文首先應用庫爾的經典水下爆炸氣泡運動理論計算出氣泡的運動和脈動的壓力波形，再依據波形相似的原則尋找波形模擬函數，用沖量相等的原則確定波形參數，得出了從沖擊波到氣泡脈動壓力整個過程對水下爆炸載荷進行模擬的解析公式。
  12. Besides, the properties of fibers carrying at different parts of the vascular prostheses differ greatly. it is predictable that the deterioration of prosthesis, under the physiological loads ( periodical pulse blood pressure etc. ), could happen firstly in the weaker zone in vivo. the deterioration shortens the life of vascular prosthesis

    另外同一工序但處於人造血管不同部位的纖維的各項承載性能也存在較大差異，可以預測人造血管在體內承受反復脈動等生理負荷下，破損可能首先出現在相對薄弱的部位，縮短了人造血管的使用壽命。
  13. The analysis is relatively simple due to the good approximation and the compact expression of the spline function

    由於樣條函數有良好的逼近性及緊湊性，使得層合板在脈動流這種復雜荷載作用下的動力分析也相對簡單。
  14. In this paper, a simplified method of calculating wind - induced response and design loads of super - high - rise buildings was proposed. coherence properties of wind load on typical tall building were analyzed and the results show that cross - wind loads at different height have strong coherence at vertex shedding frequency, and the coherence function ' s value here is near to 1

    首先分析了各測點層合力的相干特性，結果顯示各測點層所受順風向風荷載之間的相干函數基本成單調衰減規律，而橫風向脈動風荷載在漩渦脫落頻率處存在和順風向不同的顯著相關性。
  15. Abstract : in this paper, we study the random equation to elastic caminal rectangle plate under single concentrated random load by random vibration theory, and discuss the dynamic response to it by separating the variable, and study the frequency response function and unit pluse response function to the load and response

    文摘:運用隨機振動理論，推導了彈性矩形薄板在單個隨機集中載荷下的振動方程，並用分離變量法討論了其動力響應，研究了對應于激勵與響應的頻率響應函數和單位脈沖響應函數。
  16. The paper puts forward an eccentric speed - regulating pulse - type stepless transmission and introduces its work principle. by analyzing motion and dynamics of new pulse - type stepless transmission, workout responsible

    根據平面四桿機構等效轉動慣量的計算公式，計算了該變速器的等效轉動慣量，計算了等效轉動慣量的變化率? ?脈動度，分析了動載荷的影響。
  17. Then the concept of complex multiple tuned mass dampers is presented on the basis of calculating results. secondly, as a result of deducing formulas systematically and making programs to analyze with the software named matlab, the complex multiple tuned mass dampers are obviously more effective in comparison with multiple tuned mass dampers for suppressing vibration of struc tures

    其次，經過系統地公式推導和matlab編程模擬計算，繪出被控高聳結構在脈動風荷載激勵下，安裝mtmd和安裝復合mtmd后關鍵部分質點的位移均方響應譜，通過對兩種情況下位移均方響應譜的比較，證明了復合mtmd的減振效果明顯優于傳統mtmd振動控制裝置。
  18. The motion equation of a high - rising structure subjected to fluctuating wind load is developed, with the consideration of soil - pile - structure interaction

    摘要本文推導了考慮樁土結構動力相互作用時高層建築在脈動風荷載作用下的運動方程。
  19. Random wind load simulation for large - span spatial structures based on artificial neural networks

    基於神經網路的大跨空間結構脈動風荷載的隨機模擬
  20. According to the parameters given by chinese code and the shape coefficients obtained from wind tunnel experiments, the relationship between velocity and pressure of fluctuating wind is dervied, and the time - history of a fluctuating wind load is given

    然後根據國家規范提供的參數及風洞試驗得到的形狀系數，推導出脈動風速及風壓之間的關系，求出脈動風荷載的時程。
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