精確設計學 的英文怎麼說

中文拼音 [jīngquèshèjìxué]
精確設計學 英文
sharpshooter
  • 精 : Ⅰ形容詞1 （經過提煉或挑選的） refined; picked; choice 2 （完美;最好） perfect; excellent 3 （細）...
  • 確 : 形容詞1. （符合事實; 真實） true; reliable; authentic 2. （堅固; 堅定） firm
  • 設 : Ⅰ動詞1 （設立; 布置） set up; establish; found 2 （籌劃） work out : 設計陷害 plot a frame up; fr...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  • 精確 : accurate; exact; precise
  • 設計 : devise; project; plan; design; excogitation; layout; layout work; styling
  1. In this paper, ackerman steering linkage of double - wishbone suspension is taken as the study object, choosing the splitting joint and steering lever joint to carry out the design of optimization the mathematics models are established based on the multi - body system dynamics, applying its analysis method of kinematics to study the mechanism kinetic principles owing to more spatial factors considered, and calling off many hypotheses affecting the accuracy, compared with the traditional methods, the models are better to reflect the realistic motion principles, the results are more exact and applicable moreover, the force analysis is applied to the conduct mechanism the analysis method of dynamics in the multi - body dynamics is applied to study the forces applied on every component, working out the constraint reaction force of up and down ball joints, and developing the current computation program in the end, produce the upper wishbone geometry model in the ansys software package, meshing and carrying out the fea, testifying if the intensity of the wishbone meet with the requirements

    本文以雙橫臂獨立懸架的轉向傳動機構作為研究對象，選擇對斷開點和節臂球銷的位置進行優化設計，在此基礎上建立了基於多體系統動力學的導向機構和轉向傳動機構的數學模型，運用該學科的運動學分析方法研究機構的運動規律，編制了通用優化設計軟體。由於考慮了更多的空間因素，取消許多影響準確性的假設，因此建立的數學模型與傳統的方法相比更能反映實際運動規律，得到的優化結果也更加精確實用。此外，本文還針對導向機構進行受力分析，在建立該機構的空間動力學模型后，運用多體動力學中的動力學分析方法研究各個桿件的受力，計算出上下球鉸的約束反力，並開發出了相應的通用計算程序。
  2. Design of precise titration control in infusion based on hydrodynamics

    一種基於流體力學原理的精確滴定調節裝置設計
  3. The founders were in fact quite aware that their science of government was inexact and their design of government only a sketch.

    事實上制憲者深知他們的政治學並不精確，他們所設計的政府僅是一藍圖而已。
  4. Through the using of adams ( automatic dynamic analysis of mechanical systems ), kinematics simulations, which are based on the designed new type manipulate mechanism with concentrative link lever, are executed. interferences lying in the former model are measured accurately

    本論文使用機械繫統運動學/動力學模擬分析軟體adams （ automaticdynamicanalysisofmechanicalsystems ）對設計的新型推土機集中連桿操縱機構進行了運動學模擬分析，精確測量了存在的聯動角度。
  5. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。
  6. Aiming at the problem that the seeds picked up by the suction plate of the seed metering device cannot accurately fall into the seed pit opener as well as into the seed pit, an innovated seed metering device on which the seed dropping angle can be adjusted within a certain range and a new testing stand have been developed in accordance with the mathematical calculation model that had " in accordance with the mathematical calculation model that had been established previously. then an experimental study is conducted and the seed dropping law has been found out through the study

    本論文根據2bqm - 2型氣吸式精量鋪膜播種機的結構和工作原理，針對該機在實際播種中，吸種盤吸出的種子不能滿足準確地落入在膜上滾動開穴的鴨嘴內，並及時地排入到鴨嘴所成的穴孔內的設計要求，進行了一定的試驗研究，利用已建立的計算數學模型，設計新的試驗臺，改進排種器，使排種器的落種角度可以在一定的范圍內調整。
  7. Gin factory test pilots wanted a wing with nice dynamic handling ， good for fun and tricks ， smooth and light ， precise in the turn ， thermal biting

    試飛員們的目標是設計出一款擁有出色的空氣動力學性能，輕便，平穩，轉向精確，良好的氣流攀升性能的雙人傘！
  8. This thesis introduces the working principle, craftwork requirement, modeling process, control strategies and the realization of lf refining furnance bottom blowing argon control system. through the study and analysis of bottom blowing argon process control system, the thesis discusses the mean neural network model of controlled object and the mathematical models of the exectors, pwm adjustable pressure controller and pcm adjustable flux controller according to the relevant liquid knowledge and relevant data, including design data, test data and running data. to begin with the craftwork reguirement of bottom blowing argon and the actual instance of the control system, it presents the strategies of fuzzy parameters self - adaptive pid control used in pressure difference inner loop and fuzzy plus pi compound control used in flux outer loop which are based on the above modeling in order to carry out the accurate control of argon flux

    本文介紹了lf精煉爐底吹氬過程式控制制系統的工作原理、工藝要求、建模過程、控制策略以及控制系統的實現。通過對精煉爐底吹氬過程式控制制系統進行研究與分析，並根據流體力學的有關知識以及有關數據（其中包括設計數據、試驗數據和運行數據） ，建立起了被控對象的平均神經網路模型和執行機構（即pwm調壓器和pcm調流器）的數學模型。在此模型的基礎上，從底吹氬工藝要求和控制系統的實際情況出發，提出了壓差內環模糊參數自適應pid控制策略和流量外環模糊pi復合控制策略，以實現氬氣流量的精確控制。
  9. An idea, simulating the fuzzy model by establishing the fuzzy model and fuzzy control rule of the controlled object is proposed. generally, it is difficult to acquire the accurate mathematical description of the controlled object. a dynamic modulating factor is introduced in the designing of the fuzzy controller so as to improve the precision of the fuzzy control. and a more convenient defuzzify calculation method is adopted. the cart and the single inverted pendulum are taken so as to illustrate the simulation result. in addition, the detailed qualitative analysis of the fuzzy system is achieved. a kind of common method of qualitative analysis is proposed. it can be used to analyse the fuzzy system and describe the behavior of the system state precisely in the phase plane. the simulating results illustrated the method is feasible and available

    提出了在難以精確描述控制對象數學模型的情況下，通過建立控制對象的模糊模型來確定系統的模糊控制規則，並對模糊系統進行模擬分析的思想.利用連續系統定性分析的思想，提出一種對模糊系統進行定性分析的可行方法，在相平面內較為準確地刻畫模糊系統的動態行為.在模糊控制器的設計中，引入動態調節因子來提高模糊控制的精度，並採用了一種便於實際運算操作的解模糊運算方法.在一種簡單的控制對象情況下進行了具體的模擬計算，得到較理想的控制效果.此外對具有精確數學模型的一級倒立擺系統進行此種模糊控制，亦取得很好的模擬結果
  10. On this base, a more precise volume model of concrete is established and one conception of dry mortar volume is brought forward. at the same time the author absorbed the concept of the best ratio between paste and aggregates and used mathematical method to induce the formulas of water content and ratio between fine aggregate and coarse aggregate in concrete : ratio between fine aggregate and coarse aggregate : if the two formulas are connected with the classical rule of water cementitious materials ratio ( bolmy formula ), the contents of all materials in concrete can be determined completely by calculation and overall calculation proportioning is realized

    在此基礎上建立了普遍適用的更精確的混凝土體積模型，提出了「干砂漿體積」概念，同時吸收國外關于最佳漿集比概念，用數學方法推導建立了混凝土用水量和砂率的計算公式：用水量公式：砂率公式：這兩個公式結合傳統的水膠比定則（保羅米公式） ，即可全面定量地確定混凝土的所有組成材料的用量，實現混凝土的全計算配合比設計。
  11. What the article discusses is to design a computer plotting system to solve the problems how to promptly and precisely study out the above mentioned location and plotting problems. considering the affects of all kinds of factors and leaving enough room, to scan the safety course in all directions, make forecast about the relative position of the ship and typhoon, the tendency of their movements, render a vital group of data and a direct diagram which the captain cares about, help the users to make the scientific and resonable decisions, to take correct and effective measures to keep away from and withstand typhoon early and resolutely, for all the practical problems in decision - making to keep away from typhoon

    本文所討論的就是為迅速和較為精確地解決以上點繪和相對運動標繪的問題，在考慮了各種因素的影響並留有充分餘地的情況下，在全方位范圍內搜索安全航向，對本船與臺風的相對位置以及兩者之間的動態發展態勢作出預報，並給出船長最關心的、對其作出避臺決策至關重要的一組數據和直觀圖形，幫助使用者及早制訂科學合理的避抗預案，及時果斷地採取正確有效的避抗措施，解決避臺決策的實際問題而設計的一個計算機標繪系統。
  12. Present methods generally based on the statistics of earthquake damage, expert experiences, theory analysis and experimental researches have obvious advantages, disadvantages and certain scopes of application ; ( 2 ) different prediction methods should be adopted against different building conditions, sites, intensity and experiences etc to predict earthquake damage of buildings for prospective accuracy, dependability and availability ; ( 3 ) earthquake damage matrix, which is the foundation of earthquake damage prediction, of 7 kinds of building in the urban areas of zhangzhou city under intensity 6 to 9 has been set up. the damage conditions of different buildings under different intensity are as followings : all kinds of structures are basically intact under intensity 6 ; the reinforced concrete structures are basically intact under intensity 7, but other kinds of structures are destroyed slightly ; the reinforced concrete structures are still basically intact while other kinds of structures are destroyed intermediately under intensity 8 ; the reinforced concrete structures are destroyed slightly, single - story factories and open houses are destroyed intermediately and other kinds of structures are destroyed seriously under intensity 9 ; ( 4 ) the results of earthquake damage predicting of buildings embody the damage when earthquake happens in the future. thus, further identifications and reinforcements should be considered to buildings that will be destroyed intermediately or more under the earthquake with 10 % exceeding probability in future 50 years ; ( 5 ) the direct economic losses caused by damage of buildings resting with the area, structural type, intensity and damage of all kinds of buildings are the main part of the losses of the city in an earthquake ; ( 6 ) the direct economic losses increased progressively toward high intensity by 2 or 3 times

    基於上述研究，得出的主要結論有：建築物震害預測是一個模糊的、系統的、復雜的問題，現有的方法很多一般都是以震害統計規律、專家經驗、理論分析和試驗研究為依據，有其自身的優缺點和一定的適用范圍；應針對不同的建築物條件、場地條件、地震強度和已有經驗等，採用不同的預測方法進行建築物震害預測，以使預測結果達到預期的精確性、可靠性和可操作性；建立了漳州市區7類建築物在6度9度地震作用下的震害矩陣，成為指導抗震防災的重要依據，各類結構的震害情況表現為： 6度地震作用下各類建築物基本完好； 7度地震作用下除鋼筋混凝土結構基本完好外其餘以建築輕微破壞為主； 8度地震作用下鋼筋混凝土結構仍以基本完好為主而其餘建築以中等破壞為主； 9度地震作用下鋼筋混凝土結構以輕微破壞為主，單層工業廠房和空曠房屋以中等破壞為主，其餘建築以嚴重破壞為主；建築物的震害預測結果體現了未來地震來臨時的震害程度，在編制漳州市區抗震防災規劃時，對于遭遇50年超越概率10的地震影響發生中等以上破壞的建築物應考慮進行抗震鑒定和加固；由建築物的破壞所造成的直接經濟損失是城市地震經濟損失的主要部分，重慶大學碩士學位論文中文摘要其主要與建築物總面積、結構類型、地震烈度和各類建築物的震害程度有關;不同烈度造成的直接經濟損失按2一3倍向高烈度方向遞增，漳州市區直接經濟損失由6度至9度的比例關系為1 : 2 . 8 : 8 . 6 : 22 . 8 ;遭遇基本地震設防烈度（ 7度）時，漳州市區直接經濟損失約4 . 5億元，無家可歸人員約40000人，且以磚木結構和多層磚混結構的震害損失最大;地震造成的人員傷亡主要與建築物倒塌及嚴重破壞的程度和總面積以及震時的建築物室內人數密切相關，地震時無家可歸人員主要與住宅倒塌、嚴重破壞及中等破壞的程度和總面積以及城市人均居住面積密切相關。
  13. A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path

    本文對兩輪差速驅動移動機器人的運動學及其本體緩沖設計進行了探討，在對平面運動物體運動分析的基礎上結合四種常用車輪的數學模型，推導出了一個通用的移動機器人堆積方程，在此基礎上分析了移動機器人的移動能力、並針對兩輪差速構型推導了速度正解與逆解；使用muir和newman的運動學建模方法，推導了移動機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法；在移動機器人位姿識別方法中結合差速驅動構型對航位推演算法進行了分析：推導了一種理論精度較高的航位推算演算法，並使用matlab對其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬；最後針對本文所研究的機器人給出了一種比較系統、可靠的緩沖結構設計思路，較好地解決了移動機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題；本論文研究成果已在本實驗室所開發的樣機上得到實現，經過應用與考核證明其中的分析與設計是切實可行的。
  14. According to the accurate mathematics model of controlled object, the classic and modern control theories proceed to control system design

    經典和現代控制理論根據被控對象精確的數學模型進行控制系統設計。
  15. Secondly, during the braising offline temperature control loop of the oil production - lixiviating procedure, the controlled object, which is hard to build the extract model, has the characteristics of large inertial, big time - delay. the control strategy of the combination of fuzzy logic arithmetic and normal pid arithmetic is introduced in this paper, the basic principle and actualization method of fuzzy - pid are analyzed. the design model is simulated in matlab and the result proves good control performance

    其次，玉米油生產浸出工序的蒸脫機溫度控制迴路中，被控對象具有難以建立精確的數學模型，且具有大慣性、大滯后的特點，研究運用模糊控制演算法和經典pid控制演算法相結合的控制策略，分析了模糊pid控制演算法的原理和實現方法，並運用matlab軟體對設計的系統進行模擬，模擬結果表明，達到較好的控制指標。
  16. Because of the nonlinear, time - variability and uncertainty of the submerged - arc welding progress, the characteristic of accurate mathematic model being hard to establish, we can adopt the fuzzy control technology to design the welding dolly control system, and the couple closed - loop fuzzy control velocity system and fuzzy control algorithm for the speed of the welding dolly are researched based on the control system of submerged ? arc welding

    同時長時間工作也容易使人產生疲勞，影響焊接質量。針對埋弧焊過程的非線性、時變性和不確定性，難以建立精確的數學模型等特點，採用模糊控制來設計焊接小車控制系統，同時研究了焊接小車雙閉環模糊調速系統，並針對焊接小車速度的雙閉環模糊控制演算法進行討論。
  17. This paper confirmed system design scheme of kinetic parameter design of structure and dynamic characteristics design of system and precision design of system through embedded research on system ' s principium, discussed some problem of kinds of sub - system, and presents a feasible system ' s scheme

    本文通過對系統機理的深入研究，確定了以結構的動力學參數設計及系統動態特性的設計及系統精度設計為核心的系統設計方案，綜合應用了各種先進技術與技術手段進行綜合創新設計。
  18. In the calculating process. the function of liquid proportion control was discussed. especially to the synchronic control system and the dynamic character of synchronic error and the motor circuit. lt also discussed the relationship between the hydraulic system parameter and the transmission system. in the transmission unit. the mechanical function of main parts has been optimized and calculated. good results gotten. the stress and deformation of the frame joints and poles were calculated using structure mechanics method. the character of the screw pole were analyzed

    同時，為提高設備整體的性能，對機械傳動單元中重要部件臺面框架與絲杠的機械性能進行了優化與計算，重點運用結構力學的分析方法對臺面框架各節點與桿件的受力與變形做了精確的計算，並對絲杠的耐磨性、剛度、穩定性進行了可靠性分析，保證了設備的總體精度，提高了設備的可靠性，得到了比較理想的結果。
  19. When several coke ovens are connected in parallel, there are many external disturbance factors, as well as complex coupling relations, so the discharge header pressure system of coke oven is a complex multivariable control system and there is no mathematical model up to now

    在多座焦爐並聯生產條件下，集氣管壓力控制對象存在復雜的耦合關系，且尚無精確的數學模型，這就給集氣管壓力控制系統的設計帶來困難，難以實現精確的控制。
  20. Because electro - hydraulic servo system has lag circle 、 dead zone 、 nonlinear tache, and difficult to ascertain the precise mathematic model, fuzzy control test system was designed to overcome the system disadvantage, the design method of fuzzy cotroller and the implementation of computer fuzzy control software were all proposed

    摘要針對電液伺服系統中往往存在死區、滯環等非線性環節，很難建立精確的數學模型等特點，設計了一個模糊控制測試系統，克服了系統的缺點，給出了模糊控制器的設計方法和計算機模糊控制軟體實現方案。
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