章動輪 的英文怎麼說
中文拼音 [zhāngdònglún]
章動輪
英文
nutation wheel-
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。Problema and solution in involute nutation gearing
漸開線齒輪章動傳動存在的問題與解決方法Lastly, the thesis presents some designing schemes on interior facilities barrier - free for the wheelchair users by using the human body dimensions in chapter 2 ; at the same time, the thesis sums up wheelchair users " moving mode in bathing space, and designs barrier - free bathing space for wheelchair users
在第四章中主要是依據第二章中的人體尺寸,設計了對于輪椅乘坐者沒有障礙的部分室內常用設施的尺寸,同時總結了輪椅使用者在衛浴空間的行動方式,並進行了衛浴空間的無障礙設計。An automated de - noising algorithm based on the energy of wavelet packet not donoho ' s threshold algorithm is established. a gear feature vibration signal extraction method using the wavelet packet energy is proposed, which can separate gear meshing vibration, noise vibration and gear fault vibration signal from the original gearbox case vibration signal. basis pursuit ( bp ) algorithm is introduced into the filed of mechanical signal de - noising and feature extraction for the first time
第三章擺脫了donoho的閾值消噪思想,從能量的角度建立了基於小波包的自動消噪演算法;提出基於小波包能量分佈的齒輪故障特徵信號提取方法,可以將齒輪嚙合振動信號、干擾振動信號以及故障沖擊振動信號從原始齒輪振動信號中分離出來;首次將基追蹤消噪演算法引入到機械故障信號的消噪與特徵提取上,通過對齒輪故障信號的消噪,表明了它的有效性,並對影響該方法實際應用效果的因素進行了全面的分析,同時也指出了該方法存在的局限性。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。The manual introduced the total design and compute the process detailedly about the general design and the running gear design, which divided into altogether three chapter : chapter 1 for total design part of this crane, the main contents is each organization of crane and the metals structure patterns to really settle, and carry on the design to a structure of jib arm and counterbalance system by graphing method, including seeking the point, checking to calculate and school pit ; the second part is a design calculation that circulates the organization, including to circulate the organization to choose the type, the round presses calculation, the stability checking of the whole machine ; the third part is to choose the driving motion version of the hoisting mechanism
說明書詳細的介紹了該型號起重機的總體設計及行走機構設計和計算過程,總共分為三章:第一章為起重機總體設計部分,主要內容是起重機各機構和金屬結構型式的確定,並用作圖法對臂架結構和平衡系統進行設計,包括了機構找點,驗算及校核;第二部分是運行機構的設計計算,包括了運行機構的選型,輪壓計算,整機穩定性校核;第三部分為起升機構的傳動方案選型和設計計算。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。The design manual falls into three parts : chapter 1, as the overal design part, mainly descirbes how to determine which mechanisms with what metal structures shall be used and illustrates how to design its boom structure and balancing system, including point search, calculation and check ; chapter 2 introduces how to design the crane ' s running gear, including model selection, wheel pressure calculation and overall stability check ; and chapter 3 deals with model selection of its lifting mechanism and related calculations
說明書詳細的介紹了該型號起重機的總體設計及行走機構設計和計算過程,總共分為三章:第一章為起重機總體設計部分,主要內容是起重機各機構和金屬結構型式的確定,並用作圖法對臂架結構和平衡系統進行設計,包括了機構找點,驗算及校核;第二部分是運行機構的設計計算,包括了運行機構的選型,輪壓計算,整機穩定性校核;第三部分為起升機構的傳動方案選型和設計計算。Then in allusion to biased momentum wheel system, based on classical control system a pid controller was design about pitching channel. according to specialty of roll - yawing channel, this paper discuss long - time cycle movement and short - time cycle movement. when design the control method of long - time cycle movement, whiff thruster is used to assistant the control system. when design the control method of short - time cycle movemen, in order to sovle the problem of coundn ’ t abtain the angular velocity signal, nonminimum phase controller advanced by terasaki is used
然後針對偏置動量飛輪系統,基於經典控制理論設計俯仰通道的pid控制律,根據滾動?偏航通道耦合的特點,分別討論了由軌道角頻率和章動頻率引起的長周期運動和短周期運動。其中長周期運動控制律設計時,結合了噴氣推力控制來輔助偏置動量控制;短周期運動控制中,為了解決不能獲得角速度信號的問題,採用terasaki提出的非最小相位控制器進行控制。Based on this dynamic model, lots of simulations are carried out in this paper. track conditions are conducted in the following ways : wheel damage, sinusoidal irregularities curved track and analytic irregularities, aimed at every track condition, lots of analysis are preformed to find out the main wheel - rail interaction and response of the wagon components. orso some parameters are discussed in the paper
在第六章,本文以德國高幹擾隨機不平順線路激勵作為直線線路,對空車動力學性能進行了模擬計算,通過分析發現:對于空車工況,車輛脫軌主要是由於過大的輪重減載造成的。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。Districts and clubs should encourage public presentation of major donor crystals and diamond circle pins at each large district / club event to recognize new donors and motivate future donors
鼓勵在地區/扶輪社每個大型活動公開頒發巨額捐獻者水晶雕像及星鉆獎章,以表彰新捐獻者並鼓勵未來的捐獻者。The thesis consist of six chapters and based on the way of propose the question, analysis, then get the solution. it discussed and recognized what the ship transportation cost was in chapter one ; studied the environment and growing trend of the cost in chapter two ; fully discussed and demonstrated the voyage variable costs and controlling method, proposed a mathematic decision model of fuel supplying and get through the validation, proposed the concept of risking cost and addressing many controlling measures to it in chapter three ; discussed a certain running costs, proposed and validated a mathematic model of condition - based maintenance, and put forward many practical controlling method of running costs such as crew payment, repairs, spare parts, stores and lub oils in chapter four ; combining a case of monthly running cost budget and verification, performed a useful learning on running cost budget, forecast and verification in chapter five ; finally fully studied the method of cost - calculating and benefit - analyzing of time chartering container ships on a proposed route
第一章主要討論並認清什麼是船舶運輸成本;第二章研究了船舶運輸成本的生存環境和生長趨勢;第三章詳細論述並論證了航次變動成本的控制措施,提出了燃油補給方案的決策模型並給出了模型的驗證過程,提出了航次風險成本的概念並論述了若干航次風險成本的控制措施;第四章對船舶營運成本中的船員費用、維修保養費用、備件、潤物料費用等幾個主要的可控性較高的成本進行了細致的分析並分別討論了相應的控制措施,提出了基於狀態維修決策的數學模型並論證了模型的正確性及具體解算步驟,對于備件、潤物料的控制堅持以科學的預算為前提,以申領、接收、使用、盤存為控制環節,切實做到理論與實踐的密切結合;第五章結合營運成本的預核算的案例,對船舶運輸營運成本的預算及核算進行了有益的探討;第六章結合具體案例對期租班輪的成本測算與效益分析方法進行了細致的研究。Undoubtedly, this is necessary and meaningful, and is also the starting point and standing point of this thesis. at first. chapter 1 - reviews and summarizes the develop regulations of high - tech economic, and gives a definition for the impetus mechanism of high - tech industrialization as well as the contents of the mechanism ; next, author lists main factors influencing the process of high - tech industrialization, and divide these factors into external factors and internal factors according to the different ways these factors affecting the high - tech industry development, chapter 2 - analyzes the promotion effect of external impetus on the high - tech industrialization process, chapter 3 - analyzes respectively the great promotion effect of various innovation activities on the high - tech industry development on the premises of analysis of the innovation characteristic for high - tech industrialization process, chapter 4 - author formulates a model of impetus system for high - tech industrialization on the basis of the above research, analyzes its function characteristic, function manner, and comes forward a " san tao che " pattern / mode for subjective structure of internal impetus and one major pattern / mode of impetus coordination - " si lun xietong " pattern / mode, finally, chapter 5 - author analyzes the problems in china ' s high - tech industry development and gives some countermeasures
本文第一章首先回顧和總結了高科技經濟的發展規律,並定義了高新技術產業化動力機制的概念,及動力機制研究包涵的內容;接著,筆者對影響高新技術產業化進程的各主要因素進行列舉,並根據各因數對高新技術產業發展的不同影響方式,將動力因素劃分為外部動力因素和內部因素兩大類,第二章分析了外部動力對高新技術產業化進程的推動作用,第三章首先在分析高新技術產業化進程的創新特徵的前提下,分別研究了各種創新活動對高新技術產業發展的重要推動作用;文中第四章在前面研究的基礎上筆者構建了高新技術產業化動力系統的模型,並分析了動力系統的作用特點、作用方式,提出了內部動力主體結構的「三套車」模式和動力協同的一種主要模式? ? 「四輪協同」模式;最後,在第五章,筆者分析了中國高新技術產業發展中存在的問題並做出對策研究。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。The fourth part analyzed the intermediate dc voltage and its control principle and the technical parameter of the main parts in the ac transmission system. several key technical problems such as parallel working of the ac motors, the wheel diameter difference under the bogie - control mode, the ac motor - inverter matching principle are studied in detail. the principles to determine the electrical parameters are also discussed
論文第4章重點研究了變流器的中間直流電壓的確定及其控制規律,確定了交流電傳動系統主要部件的技術參數;研究了架控方式工作下電動機並聯工作、輪徑差、電機?變流器匹配原則等關鍵的技術問題;詳細分析了交流傳動系統在牽引工況和電阻制動工況下各參數的工作過程和控制原則。At last, the researchers discussed and analyzed the results of the simulation contrastively. firstly, according to the conditions of the aircraft being researched, differential coefficient equations of the aircraft during its symmetric landing are established systemically in this paper
文章的主要內容包括:以某多輪多支柱飛機的起落架為例,依據該起落對稱著陸的實際情況,系統地建立了該飛機的全機著陸動力模型以及飛機主起落架數學模型。In chapter six, based on the preceding chapters " research, the practicality of the full scale dr i 11 ing simulating test device has been tested by the debugging and the performance test. under simulating drilling conditions, the rock mechanical properties and the bits " dynamical tests are analyzed and set forth specifically. at the same time the effect of bottom pressure difference on the oil field exploration and development has been discussed
第六章在前述分析研究的基礎上,通過對模擬裝置的系統調試及性能測試,驗證了全尺寸鉆井模擬裝置的實用性,在鉆井模擬條件下對巖石的機械性質、牙輪鉆頭動態測試給予了具體的分析闡述,同時還分析探討了井底壓差對油田勘探開發的影illb ,並且為宋深101井的實際施工作業提供了非常有價值的指導參數。Aiming at the characteristics of drainage pumps in mine, the paper presented a method of realizing balance run and automatic shift of multi - motor of drainage pumps by analyzing the control demand of drainage pumps and searching the optimization scheme between the reliability, simplicity and economy of system control
文章針對煤礦井下排水泵的特點,通過分析其控制要求,在系統控制的可靠性和控制實現的簡潔性、經濟性之間尋求最佳化,給出了實現多臺排水泵電機均衡運行和自動輪值控制的一種方法。Chapter 3 in terms of the integration methodologies explores a driving wheel model based on the previous theories of fdi and m & as and reveal that the cbm & as of tncs are driven both by the fdi driving wheel and m & a driving wheel. the fdi driving wheel explains why a tnc would invest directly cross the border, the motives of fdi. the m & as driving wheel analyzes why the tnc choose the mode of m & a, the motives of m & as
第3章在總結集成前人研究的關于跨國並購的基本理論基礎上,探索性地提出了跨國並購的驅動輪模型,揭示了跨國並購是fdi輪和m & a輪兩輪共同驅動集成的結果: fdi輪主要回答企業為什麼要跨越國界進行直接投資問題,即企業fdi的驅動力問題; m & a輪主要回答投資方式的選擇問題,即m & a的驅動力問題。分享友人