推力變化 的英文怎麼說
中文拼音 [tuīlìbiànhuà]
推力變化
英文
thrust fluctuation-
Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先，在前人研究成果的基礎上，對錨桿與圍巖的相互作用機理進行研究，利用全長錨固錨桿的中性點理論，從等效均化的角度來考慮錨桿對圍巖的加固作用，並推導了在簡單荷載作用下，含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解，對工程設計有著重要的參考意義；在數值模擬方面，以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎，利用虛功原理推導了接觸問題的有限元方程的計算格式，為開發運用大型商用有限元軟體msc . marc提供了理論根據，也形成了本文的理論基礎：最後，論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例，利用本文所述的接觸問題的摩擦模型理論，對錨桿支護結構的應力場、位移場的變化規律進行了研究，分析了加錨支護對隧洞圍巖應力、變形的影響。The complex nonlinear pursuit - evasion model of two spacecraft in near - earth coplanar orbit is simplified to linear model, the circular region the radius of which is equal to capture radius is defined as target set, capture is achieved when the evader come into the target set and the game is over ; the boundary of useable part ( bup ) is determined, and the analytical form solution of the linear equations is obtained by backward integration of the state variables from the bup, the linear barrier of the pursuit - evasion model and the optimum thrust of the both sides are thus obtained
本文將近地共面軌道內運動的兩飛行器非線性追逃模型簡化為線性模型，以捕獲半徑的圓域定為目標集，確定目標集邊界上的可用部分，並以此為各狀態變量的起點，對時間進行倒向積分，求得線性方程組的解析解，從而確定了該追逃模型的線性界柵，以及界柵上對策雙方的最優推力，即求得了滿足最優策略時相對運動的軌跡和推力。On this foundation the article inducts in detail the method which is based on the relative settlement of calculating unit area end support ( qb ) force at the same time considering the feature of pedestal pile ' s " arch effect " the article introduces conception of pile effective length and finally obtain t he formula of calculating man - made pipe with bulb - shaped axial carrying capacity. the article uses marc program to calculate and analyze foundation soil ' s stress and displacement and gets the change curve chart and the proportion that is shared by king - pipe side soil friction resistance and pipe end counterforce respectively. the article inducts the structure of pedestal in detail on the basis of generalizing pedestal application cases of many countries
在此基礎上論文詳細歸納了以相對沉降為依據確定單位面積端承力q _ b的計算方法，並考慮擴底樁的「拱效應」特點引入了有效樁長的概念，最後結合公路規范推出了比較實用的人工挖孔擴底樁軸向承載力計算公式。論文運用了marc程序對地基土的應力和位移進行了有限元數值計算分析，得到了地基土的應力和位移場的變化曲線和在加載過程中樁側土摩阻力和樁端反力各自所承擔的比例；本文還在總結各國挖孔擴底樁應用情況的基礎上就擴底樁的構造進行了詳細的歸納。At the same time, in order to get adapted to the market change, improve the competitiveness, reinforce the cohesiveness and maintain the upswing trend, cec should take effective measures, such as to accept new idea and develop the managers " awareness of competitiveness ; reform the selecting and appointing mechanism ; establish a sound compensation system ; improve consumption for the position ; break the dominance of state - owned shareholders on the stock market and improve corporate governance structure ; reinforce the financial supervision on the corporation ; make a full use of restraint effect of competitiveness and reputation mechanism ; build various " golden parachutes "
與此同時， cec在企業經營者激勵與約束方面應採取針對性的措施，通過轉變觀念，樹立市場經濟的競爭意識和產權意識；改革企業經營者的選拔任用方式，積極推進企業經營者管理的市場化進程、建立科學合理的薪酬體系、規范職位消費，實行職位消費貨幣化、調整股權結構，實現投資主體多元化，健全公司法人治理結構、加強企業財務監控和內部制度建設、充分發揮市場競爭機制和聲譽機制對企業經營者的激勵約束作用、設計各種形式的「金色降落傘」等措施的實施，適應市場變化，提高企業核心競爭力，增強企業的凝聚力，保持事業的長盛不衰。In this theoretical logic, federalism lays special emphasis on the analysis of the final results of supernational dimension, while functionalism breaks the once stagnating situation of european integration. also, neo - functionalism, on the basis of developing what is useful and discarding what is not of federalism and functionalism, makes fusion of these two
同時，筆者以為歐洲一體化的超國家向度存在並在一定的歷史時期內有所突破，但由於歐洲一體化現實困境對超國家向度發展的諸種限制，致使它目前被融匯到歐洲一體化的變化、調整和諸多推動力之中。A mathematical model reflecting the tilt rotor unsteady and nonlinear aerodynamic characteristics in the longitudinal channel is presented in the paper. in the full flight envelope, the rotor thrust continues tilting and the aerodynamic forces of each component change as a function of airspeed and nacelle angle
在整個飛行包線內，旋翼的推力矢量方向不斷變化，飛機各部件的氣動力隨發動機短艙傾角和空速的變化而變化，因而飛機的飛行動力學有很強的非定常、非線性特性。On the one hand, small business problems play a more and more important role in stimulating and stabilizing the social economy, relaxing the underemployment pressure, satisfying the characteristic demands and accelerating technological advance. on the other hand, small business is a pioneer in the step - by - step market reform. all the state - owned small business, private small business and township small business adopt themselves to the changing market environment by system innovation, technology innovation and market innovation
一方面，中小企業的發展是社會經濟的推進器和穩定器，其在緩解就業壓力、推動經濟增長、滿足個性化要求、促進科技進步等方面發揮著日益重要的作用；另一方面，中小企業是漸進式市場化改革的先驅，無論是國有中小企業、民營中小企業，還是鄉鎮企業，它們都通過體制創新、技術創新、市場創新等途徑來適應不斷變化的市場環境，並走出了一條適應市場經濟要求的創業發展之路。Then the judging method is proposed, and the proposed method can consider the stress history and viscosity shear strength of soft soil. in this paper, a fem program dpfbm1. 0 ( double plastic foundation beam method ( version 1. 0 ) ) is established. with this program, the influence of some parameters on foundation excavation is fully studied, the parameters include : compression modulus, cohesive strength, angle of internal ficiction, effective angle of internal friction, the embedded length of the wall and building load
針對當前國內外彈性地基梁法存在的缺陷，基於對軟土流變性的研究，採取了剪應力判斷彈塑性狀態，以改進和完善基坑工程彈性地基梁法，推導了彈性狀態下地基反力系數的近似解，提出了採用剪應力組合判斷土彈簧彈塑性狀態的方法，編制了相應的彈塑性共同變形法分析程序dpfbm1 . 0 （ doubleplasticfoundationbeammethod （ version1 . 0 ） ） ，並採用該程序分析了壓縮模量、粘聚力、內摩擦角等參數變化對基坑工程的影響。In the end of this part, some application examples of fracture mechanics for the frozen soil have been given out. in the second part, continuum damage mechanics has been introduced to study the characteristics of the frozen soil. on base of additional damage concept, a judging model for initial and additional damage for frozen soil was proposed
第五章進行的是凍土損傷力學的測試研究，首先介紹了凍土損傷的動態測試原理與方法，採用附加損傷的概念推導了凍土初始與附加損傷的動態識別模式，隨后對凍土單軸壓縮過程進行了動態測試，對在這一過程中的內部結構變化特徵進行了研究。From the feature of the force and deformation of the tpih, 5 different elements are used to mesh the different zones of the tube, which are structural beam 3d elastic 4, structural pipe plastic straight 20, structural pipe elastic elbow 18, structural shell elastic 4 node 63 and contact 3d pt - to - surf 49 ; the contact problem is assumed to be flexible - to - flexible ; the temperature field is assumed to be body load. a mechanical model corresponding to reality has been established for numerical simulation. based on the above, the 3 - d fem numerical simulation of tpih has been carried out by using the ansys program
針對加熱彎管過程的受力和變形特點，採用三維梁單元、三維塑性直管單元、三維彈性曲管單元、三維殼單元與三維點對面接觸單元等5種不同的單元分別對管毛坯不同區域進行劃分，並對接觸單元採用柔體-柔體的處理方法，將溫度場作為體載荷處理，建立了符合實際的加熱彎管問題數值模擬力學模型：在此基礎上，應用商用軟體ansys對加熱彎管過程進行三維有限元模擬與研究，獲得了成形時推力、彎矩、支撐力大小及其變化趨勢。This paper proves that the changes of pre - compression on the windings have effects on their natural frequencies and derives their relation, which provides the experimental and theories foundation for fault diagnosis of large - scale electric transformers
通過對大型變壓器繞組進行振動實驗和根據建立的變壓器繞組軸向振動數學模型的理論推導，闡明了變壓器繞組預緊力的變化與其固有頻率變化之間的關系，這為大型變壓器的故障診斷提供了理論與實踐依據。Economic globalization is the most basic character of current worldwide economic development and it greatly changes the economy, politics ， culture and social lifestyle in every country after china ' s entry into wto ， it will take more active part in the process of the economic globalization both in wider fields and in deeper degree to the ideological and political education ， economic globalization is a sword with both sharp sides ， that is ， on one hand ， it provides great opportunities for the development of the current ideological and political education ， and on the other hand ， it also brings austere challenges therefore ， on the basic of the era features and the changes in our thoughts we must ke 印 pace with the times and build up new creative education system ， suitable for the economic globalization ， for the ideological and political education in order to propel powerfully the full development of our country and human beings there are three main parts in this essay the first part mainly discusses the meaning and characters of economic globalization to deepen people ' s knowledge about economic globalization and the second illustrates the opportunities and challenges confronted by the ideological and political education caused by the economic globalization ， so that the great importance and necessity of enforcement and improvement in the ideological and political education can be realized the last part states the innovation of ideological and political education under the background of economic globalization ， focused on the analysis of five points ： notion innovation ， content innovation ， m ~ hod innovation ， carrier innovation and mechanism innovation
經濟全球化對於思想政治教育來說，是一柄兩刃劍，既給新時期的思想政治教育提供了發展的機遇，同時又帶來了嚴峻的挑戰。因此，我們必須根據時代的特點和人們的思想變化，與時俱進，建立與經濟全球化相適應的思想政治教育創新體系，使思想政治教育更加有力地推動社會發展和人的全面發展。本文主要包括三個部分內容：第一部分介紹了經濟全球化的基本情況，加深人們對經濟全球化的認識；第二部分闡述了經濟全球化給我國思想政治教育帶來的機遇和挑戰，使人們認識到加強和改進思想政治教育的必要性和重要性；第三部分論述了經濟全球化背景下的思想政治教育的創新，著重從觀念創新、內容創新、方法創新、載體創新、機制創新五個方面進行分析。Abstract : thermally induced stress and the relevant warpage cause by inappropriate mold design and processing conditions are problems that confounded the overall success of injection molding. a thermorheologically simple thermoviscoelastic two - dimension material model is used to simulate the residual stress and warpage within injection molded parts generated during the cooling stage of the injection molding cycle. the initial temperature field corresponds to the end of the filling stage. the fully time - dependent algorithm is based on the calculation of the elastic response at every time step. numerical results are discussed with respect to temperature and pressure
文摘:不均勻的熱殘余應力及其變形是注塑成型加工中常見的工程問題之一.應用熱流變簡單材料的二維熱粘彈本構方程得到的遞推公式，數值模擬了成型中的熱殘余應力及其翹曲變形，並用數值實驗討論了溫度、壓力對注塑件殘余應力及變形的影響，發現溫度變化不均勻是注塑件翹曲變形的最主要原因，其影響遠大於壓力的作用，與工程實驗的結論一致The basic principle of hydraulic system of tb80k trimming is set forth. the changing process of engaging pressure is analyzed and studied, the engaging pressure is produced in transmission controlled by electro - hydraulic proportion when shift gear is switched ; the hydraulic control system used in remote control is studied and designed applied with electro - hydraulic proportional control theory and on the basic of the hydraulic characteristic of tb80k trimming dozer, more and more electro - hydraulic reform projects and assumption are present
本文闡述了tb80k推耙機液壓系統的基本原理；對電液比例控制變速箱換檔在各檔之間切換的接合壓力變化過程進行試驗分析研究；應用電液比例控制理論，結合tb80k推耙機液壓系統結構特點進行遙控液壓控制系統研究和設計，並提出了多種電液改造方案和設想。The static loading test for three group of testing piles of jiading power plant secend stage project are analyzed and studied in this thesis, and the practical applying of high - accurate data collector, technique of waterproof insulation and testing technique of burying in the body of pile are introduced also. the vertical and horizontal loading features of three group of piles of different kind and constructing technique in different earth layer at the pile point are analyzed and compared and summed up with basic integro - differential equation calculating the pile earth system load transmit, transforming principle of stress - deforming and pile body rating of burying electric measuring element. changing law of stress, and changing law of pile body shifting and bending for different testing piles under vertical and horizontal load are showed so that the loading features of soil layer and pile at testing spot, reliable design data for pile type and base for scientific construction technique are provided
本文僅就嘉定電廠二期工程中的三根試驗樁的靜載試驗進行了分析和研究，利用樁土體系荷載傳遞分析計算的基本微分方程及應力-應變轉換原理，結合預埋電測元件的樁身率定，對三組不同種類、不同施工工藝、不同持力層中的樁的豎直、水平承載特性進行了分析、比較和歸納，通過大量、全面的實測數據，經過整理、轉換和推演，揭示了不同試驗樁在豎直、水平荷載作用下的應力變化規律和樁身變位、撓曲變化規律，最終提供試驗場地土層和樁的承載特性，為該工程合理設計樁型提供了可靠的設計參數，為確定科學的施工工藝提供了有力的依據。Calculating result showed : the thrust changing caused by the magnitude of at / ac was more larger than that both of the pressure index : " n " and of the chamber diameter, and the best thrust could be get when at / ac < 0. 3
由數值計算可知， at ac的大小變化所引起的推力變化比壓力指數n和藥室直徑的變化引起的變化大得多，而且當at ac 0 . 3時，可以得到最佳的推力效果。The transient state of torpedo electrical drive system, caused by torpedo ' s steding, shifting, and the fluctuation of battery voltage, and the change of the resistance in voyage, will influence efltire attitude and stability of the torpedo immediately, as well as every parts of electrical propulsion system. therefore, it is necessary to theoretically analyze the transient state of torpedo electrical power propulsion system
魚雷電動力推進系統在魚雷啟動、變速及因電池電壓的波動和在魚雷航行阻力變化時而產生的暫態過程都將直接對整個魚雷的姿態和穩定性產生影響，同時對電動力推進系統本身各個組件也將產生不同影響，因此有必要對魚雷電動力推進系統的暫態過程進行一些理論分析。My paper attempts to attain some conclusions from this study of gas cavity, and these conclusions may be useful to controlling bearing operation. the oiling system is an important part of radial - thrust floating - ring hybrid bearing. there are some factors that lead to the variation of oil - pressure in the oiling system
本論文試圖從理論方面研究由於供油壓力變化導致氣穴現象（這時候呈現兩相流潤滑）對徑?推聯合浮環動靜壓軸承動靜態特性的影響，為以後可能尋求主動控製作了準備。Based on the catastrophic characters of the whole strain energy in truss structural instability, the relationship between the whole strain energy and the stress rate in the link element was educed, and the stress rate criterion for judging the instability of truss structures was built up through analyzing the changing law of stress rate
基於桿系結構發生動力失穩時的總應變能突變特徵，推導總應變能同桿單元應力變化率之間的關系，並分析應力變化率的變化規律，建立了判定系結構動力失穩的應力變化率準則。In this thesis, based on the principles of hydraulic mechanics and soil mechanics, the change of effective stress in soil mass and the settlement of ground surface induced by dewatering during excavation both in homogeneous soil and in layered soil were studied. analytical formulas for calculating the settlement and the others were derived under the assumption that the seepage induced by dewatering is one - dimensional and vertical
本文運用水力學和土力學的基本理論，在一維豎向滲流的假定下對均質土和成層土中基坑開挖降水引起的坑內外土中應力變化及周圍地表沉降的計算方法進行了較深入的研究，推導了相應的地表沉降等計算公式。分享友人