章動軸 的英文怎麼說
中文拼音 [zhāngdòngzhóu]
章動軸
英文
nutation shaft-
In the chapter 3, algor feas ( also called super sap ), a commercial fem software is introduced ; several. problems in building the finite element model of a auto frame is researched ; taking advantages of fem and mathematic programming, a strength analysis method of the frame of a series multi - spindle hydropneumatic suspension automobile is proposed ; taking the structure and load characteristic of a missile ' s frame into account, the static, eigenvalue and response analysis have been made by using super sap91
第三章簡要介紹了大型有限元軟體sap91 ;對車架有限元建模及分析中的若干問題進行了討論;利用有限元法和數學規劃法相結合,提出了一種串聯多軸油氣彈簧懸架車輛車架強度分析的方法;針對某導彈發射車車架的結構和載荷特點,利用sap91軟體對其進行靜力分析、特徵值分析和動力響應分析。The reason of rupture of driven shaft of idler wheel for some factory is analyzed
摘要文章分析了某單位移動工位滾輪架從動軸的斷裂原因。The wobble and precession - nutation on cip of elastic earth
彈性地球cip軸的極移和歲差章動Elastic earth model ; precession nutation moment ; cip axis
彈性地球模型歲差章動力矩cip軸Therefore, the theoretical definition of cip and its dynamical equation on wobble and precession - nutation are given. considering precession - nutation moment up to 5
由此對cip軸進行了理論定義,並給出了其極移歲差章動的動力學方程。The paper analyses the law of services spatial diffusion in chongqing city, which is the law of business services spatial diffusion base on contagious diffusion hierarchical diffusion and base on the law of stochastic diffusion along the axes, and, according these principle, revise the unit factors score of business services calculated by using traditional way
由於重慶市地形復雜,江河阻隔,因此山城城市職能除表現為傳染擴散規律外,更突出地表現為等級擴散和軸向隨機擴散規律。文章依據這些原理對採用傳統的方法得到的商服功能影響作用分進行修正,同時探討了結點數動態變化時城市職能的空間擴散規律。Judy was awarded the animal equivalent of the victoria cross ( the dickin medal ) in 1946
朱迪獲頒維多利亞海峽相當于動物(五軸勛章) 1946In 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。The reassigned smoothed pseudo wigner - ville distribution ( rspwvd ) is introduced, which has less interference and higher resolution than other time frequency distributions like wigner - ville, choi - williams etc. it is used to detect the multi - knocking of engine such as cylinder, piston pin, valve, crank bearing, connecting rod bearing and jib knocking. a new fault diagnosis technique based on the rspwvd for the engine multi - knocking problem is proposed. by comparing the bispectrum and bicoherence of the gear vibration signals, it is demonstrated that bispectrum has an advantage over bicoherence for feature extraction of such signals
第四章首次引入一種重分配方法,得到干擾項少而解析度高的重分配平滑偽魏格納維爾分佈( rspwvd ) ;對發動機曲軸主軸承響、連桿軸承響、活塞銷響、活塞敲缸響、氣門響和挺桿響等常見機械異響故障振動信號特徵進行了全面地比較分析;通過對各種異響故障特徵信號的分析研究,提出基於rspwvd的發動機多異響故障診斷策略,利用該策略可以準確識別不同的發動機異響故障。Chapter 6, according to the certain motorcycle, it describes structural radiation yawp, rolling bearing, piston whack, yawp of matching gas of valve cam, gear mesh yawp, burning yawp and the yawp of exhaust and inhaust in details
第六章介紹了對具體摩托車的結構輻射噪聲、滾動軸承、活塞敲擊、氣門凸輪配氣機構噪聲、齒輪嚙合噪聲、燃燒噪聲、進、排氣噪聲進行了全面分析。It is the main purpose of this paper to calculate the energy splitting of ground state and excited states induced by thermally assisted quantum tunneling. first, a brief introduction is given for the theoretical and experimental studies on the magnetic macroscopic quantum effects. then, spin tunneling in a uniaxial ferromagnetic particle in transverse magnetic field is converted to a pseudoparticle moving in effective double - well potential with the help of the effective potential description of quantum spin systems developed by ulyanov and zaslavskii. finally using the periodic instanton method we evaluate the transition amplitude, energy shift and prefactor of wkb exponential and the energy splitting of ground state and the tunneling rate for excited states induced by thermally assisted quantum tunneling are obtained
文章首先對磁性宏觀量子效應的理論和實驗方面作了簡單介紹,然後藉助于ulyanov和zaslavskii發展的一種等效勢描述方法,把外磁場沿難磁化軸方向時的自旋隧穿約化成在等效雙勢阱中運動的粒子,利用瞬子方法給出基態能級劈裂,最後利用周期瞬子方法分別計算了隧穿幅、能級移動以及wkb前因子,從而給出由於熱助量子隧穿引起的激發態的隧穿率。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。According to the characteristics of the overhead camshaft valve train, the author thoroughly analyzed the kinematics and dynamics concerned in the design of valve train cam profile. the results illuminate the influence of valve timing, ample factor as well as the contact stress between cam and tappet on the design of cam profile
根據頂置凸輪軸式配氣機構的特點,文章深入分析了在配氣凸輪型線設計中必須涉及的運動學及動力學問題,說明了配氣定時、豐滿系數及凸輪與挺柱間接觸應力對凸輪型線設計的影響。In the third chapter, the mathematical models of project system have been established, and simulation has been done on the simulink enviroment of matlab software kits. the simulation focus on the effects of main parameters on the dynamic characteristics of speed control system, and the main parameters include viscosity damp coefficient and friction torque of electrical motor shaft, internal leakage coefficient of pump / motor of hydraulic circuits, gas volume of pressure accumulator, viscosity damp coefficient of cylinder piston and different running building floors, etc. at last, theoretical research effects of the flow and pressure pulsation of pump / motor on car speed and oil volume leakage theory are discussed. the fourth chapter of this thesis concerns the research on the key items about hydraulic power control system according to the ens 1 - 2 and other hydraulic elevator standards
論文第三章針對組成系統的各個模塊進行了機理建模,並且通過matlab軟體中的simulink圖形化模擬環境進行了本課題系統的模擬研究,主要針對影響系統特性的主要參數變化,動態分析系統的輸出特性,在上下行工況中,分析了電機軸系粘性阻尼系數、軸系摩擦力矩、主迴路蓄能器迴路液壓泵馬達內泄漏系數、蓄能器氣體容積、液壓缸柱塞粘性阻尼摩擦系數以及不同運行樓層工況等參數對系統特性的影響;最後對軸向柱塞泵馬達的流量壓力脈動對電梯轎廂速度的影響和蓄能器內油液體積損失機理進行了理論研究。The paper analyzes the composition of siemens shaft - generator with rectifier and thyristor inverter and its working principle, and introduces the independent power supply, the operation of the system, automatic adjustment, and the function of synchronous condenser, contributing to upgrade the understanding level and cognitive ability of shipping mechatronics managerial staff
摘要文章分析了西門子帶整流逆變中間環節的軸帶發電系統的組成及工作原理,介紹了單獨向電網供電方式、系統的運行、自動調節以及調相機在系統中的作用,有助於提高船舶機電管理人員對這一系統的理解和認識能力。Combined with the actual developing situation, a new design is originated, that is, non - contact torque measurement through grating sensor. this paper has also presented the study of whole measurement system. according to actual experimental condition, a new torque measurement system of water turbine ' s principle axis is designed and tapped
文章結合扭矩測量的國內外發展現狀和實際,根據國家自然科學基金資助項目「水輪機主軸機械繫統動態特性研究」提出的方案,採用光柵式傳感器進行扭矩的非接觸式測量,並對其整個測量系統進行了研究。Finally, the paper expatiates the realization process of this design, including the rotation equipment management, the static equipment management, examines and service project management, the electrical management, the meter computer management, the water quality management, the lubricating oil management, the static seal management, the craft pipeline management, the bearing management, the pressure vessel
最後,文章對系統的設計實現過程進行了闡述,分別對大慶石化總廠設備管理系統的轉動設備管理、靜設備管理、檢維修計劃管理、電氣管理、儀表計算機管理、水質管理、潤滑油管理、靜密封點管理、工藝管線管理、軸承管理、壓力容器管理、安全閥管理進行重點描述。This article is totally divided into six chapters. it takes urbanization as background, and takes mountain cities as research objects, and takes spatial form as clues. lt analysis by synthesis the natural factor and humanistic factor and builds up the motive mechanism of spacial expansion and research the four appropriate pattern of spacial expansion : the layer expansion mode, the axis expansion mode, the centralized mode, the jumping expansion mode
本文共分六章,以城市化快速發展為背景,以山地城市為研究對象,以山地城市空間形態演變為線索,對山地城市的自然和人文影響因子及其形態進行了分析,建構了山地城市空間擴展的動力機制,並通過與平原城市的比較對照及實踐例證,闡述了山地城市空間擴展的四種典型模式:緊湊圈層式、軸向伸展式、集約內涵式和多核跳躍式。Abstract : this paper proposes an self - adaptive speed - accommodating control circuit, which can get the speed - error, and can test the change of frequency of feedback signals of the single phase ac tacho generator through self comparing and automatically corrects the speed
文摘:文章介紹了通過自比較來檢測錄音機主導軸單相永磁交流測速發電機反饋信號的頻率變化,從而獲得速度誤差,並自動校正轉速的一種自適應速度調節控制電路。Chapter 6 discusses post processing of fiber paths and collision control during winding, proposes mathematical principles and detail algorithm of generating machine paths. finally, examples of elbow fabrication are shown in chapter 7 to prove the reliability of this system
第六章討論了纏繞彎管cam ? ?纖維路徑后處理,研究了纏繞機加工彎管時各運動軸之間的碰撞控制和纖維束扭曲問題,給出了生成機器路徑的數學原理;建立了計算機器路徑的方程組,並給出了脫機生成機器路徑的具體演算法。分享友人