靜不定系統 的英文怎麼說

中文拼音 [jìngdìngtǒng]
靜不定系統 英文
statically indeterminate system
  • : Ⅰ形容詞1. (安定不動; 平靜) still; calm; motionless 2. (沒有聲響; 清靜) silent; quiet Ⅱ名詞(姓氏) a surname
  • : 名詞[書面語] (剁物所用的木墩) a block of wood
  • : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
  • : 系動詞(打結; 扣) tie; fasten; do up; button up
  • : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
  • 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
  1. This testing instrument ' s successful development, not only did we know fairly well before shooting range ball firing, but it can instruct manufacture of artillery, make assure the quality of every artillery, save a great deal fund

    坦克炮管向精度測試的研製成功,但可以在靶場實彈射擊前做到心中有數,而且能夠指導火炮的生產,保證每門火炮的質量,節約大量資金。
  2. This paper deriving the theory work inflection point in the static stage characteristics curve of small measurement range linear dimension measurement. by the way of high pressure and back pressure pneumatic measure and designed the parameter of the mainly and measure spray head, which are the key component in the spray head - baffle pneumatic sensor. the different groups for the main - spray head and the measure spray head, will effect the dynamic and static stage characteristic parameter. the author have done contrast experiment and optimization design to test and verify the theory derivation whereby made the rang of show valve of pneumatic measure system measure range up to 40 u m, the sensitivity up to 100mv / u m, resolution up to 0. 05 p m, the uncertainly of measure is less than 0. o2 u m, satisfaction of requirement of groups the carboy hatch thickness size precise measure of soft shims

    對高壓背壓式氣動測量用於小量程線性尺寸測量的態特性曲線的理論工作拐點進行了推導,對氣動測量中的噴嘴-擋板型氣動傳感器中的關鍵部件? ?主噴嘴和測量噴嘴的參數進行了理論設計,對主噴嘴和測量噴嘴的同組合,將影響測量、動態特性指標的噴嘴參數進行了對比實驗和優化設計,並通過實驗驗證了理論推導,從而使氣動測量量程的示值范圍達到40 m ,靈敏度達到100mv m ,解析度達到0 . 05 m ,測量度小於0 . 2 m ,滿足了壓縮機缸蓋軟體墊片厚度尺寸精密測量分組的要求。
  3. By hydraulic modeling, this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water, and it ' s hydrodynamic stability characteristics that distinguish in standing water from in flowing water ; and direct measurements of the forces acting on the model floating body during floating and sinking is taken. as a result, the rotation stress curves are produced and analyzed ; to provide data for optimum operation schedule analyses of the sluice, the relationship of the impact forces acting on the side wall of the gate and the running speed is studied ; the reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper

    本文結合常州新閘防洪控制工程水工模型試驗,分析了浮箱門在水和動水中的穩性及其影響因素,指出水穩性和動水穩性的同特點;試驗測了浮箱門動水運行時的受力情況,給出並分析了位過程轉動力的變化過程曲線;根據浮箱門啟閉速度與門體和岸墻之間撞擊力大小的關,選擇合理的動力設備,為設計和工程實踐提供可靠依據;分析浮箱門難以穩上浮的原因,並給出解決方案。
  4. Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )

    本研究以武裝直升飛機防護裝甲材料為研究對象,採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合材料,結合其力學性能、掃描電鏡和界面微區能譜分析結果,分析了sic _ p al復合材料的真空燒結過程中的界面現象,以及材料增強和斷裂機理,並利用hopkinson高速壓桿沖擊實驗對其從態到動態(應變率為3 . 3 10 ~ ( - 3 ) s ~ ( - 1 ) 5 . 2 10 ~ 3s ~ ( - 1 ) )的壓縮破壞響應進行了研究,分析了同體積分數sic _ p al復合材料高應變率壓縮載荷下,材料的變形和微觀損傷機理,以及利用高速沖擊空氣炮測了改復合材料制備剃度復合板的穿透性能。
  5. Static and dynamic trial experiments indicate that the system, not only can well simulate the prime governor and self _ equilibrium characteristics of a prime mover with its simple hardware line, small size and versatility, but also can highly improve the whole system ' s control precision, reliability and stability when compared with the system design of the analogy circuits

    態、動態測試實驗表明:該控制僅硬體線路大為簡化、體積小、通用性強,能夠很好地實現對原型調速器及原動機自平衡特性的模擬,而且與模擬電路的設計方案相比,整個的控制精度、可靠性和穩性等大幅度提高,具有明顯的優勢。
  6. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球止雙星向的相關技術,主要研究成果包括以下幾方面:首先,建立了利用兩顆地球止軌道衛星進行短基線向的數學模型,分析了載波相位干涉測量的適用條件;採用傳的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星向的精度進行了詳細分析,數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而太適合;在分析向精度確性影響因素的基礎上,提出了雙星向精度衰減因子odop的概念,揭示了雙星向誤差特殊表現的內部機理,對實際工程應用具有重要的指導意義。
  7. Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running

    本設計針對國產中、小型電站鍋爐燃燒參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型易確的特點,提出多變量協調控制方案,解決了可控性差,難以實現穩自動運行的問題;在此基礎上,改變以往以煙氣含氧量控制送風的傳模式,針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重,煤種混雜、成分、燃燒發熱值低、燃燒效率高等問題,應用智能控制理論中的模糊控制技術,結合自尋最優控制的思想,設計了一種模糊自尋優控制器,應用在電站鍋爐送風控制上,並闡述了動態兩種實現途徑,通過在線優化風煤配比,實現最佳經濟燃燒,切實保障了鍋爐的經濟運行。
  8. The performance of the bearings, the nature characteristics and stability of a symmetric rotor - bearing system equipped with a flexible laminated membrane coupling were discussed duo to misalignment of rotors

    以膜片聯軸器耦合的對稱多跨轉子?軸承為研究對象,分析了轉子對中量對軸承的動特性、的固有特性和穩性的影響。
  9. Different equations to corresponding components are presented by analysing and transformating the general equations of fluid routes, then static characteristics mathematical model of liquid propellant space propulsion system is presented. based on the data of static characteristics calculation, mass model of thruster, propellant, propellant tank, gas, gas bottle, pipe and valve is presented using both the method of statistical regression and the method of stress analysis, then corresponding mass model is presented. based on the characteristics of liquid propellant space propulsion systems, analyse the five phases ( concept and definition, design and improvement, manufactureing and arrangement, operation and ma intenance, disposal ) in which life cycle cost of liquid propellant space propulsion systems is cost separately, then discompsed structure of life cycle cost and model of life cycle cost are presented

    將組件分成氣路組件和液路組件,再對氣路組件和液路組件進行相應的分類,然後通過對通用流路方程進行分析和變換對同類型的組件分別建立同的方程,從而建立了一個適用於液體推進劑空間推進態數學模型;根據態計算所得到的數據,應用計回歸法和應力分析法分別建立推力室、推進劑、推進劑貯箱、氣體、氣瓶以及導管和活門等的質量模型,從而建立相應的質量模型;結合液體推進劑空間推進特點,對液體推進劑空間推進全壽命周期費用發生的五個階段(概念和義、設計和改進、製造和安裝、運行和維修、處理)分別進行分析,建立了液體推進劑空間推進全壽命周期費用分解結構和全壽命周期費用模型。
  10. With the development of the electric power system, static - state reactive power compensators ca n ' t have met the requirements of the actual production and operation, and the trend to the fast and dynamic compensation for reactive power become greater and greater. since ertan hydroplant and 500kv transmission systems in sichuan power system have been operated, many power plants of load center are forced to halt during the high - water period, because the great deal of power is transmitted to far - distance load center. thus the load center loses voltage sustentation and the level of the system stabilization is debased greatly

    四川電網的二灘水電站和500kv輸變電投入運行后,由於二灘水電站的大量電力遠距離輸送至負荷中心,迫使負荷中心的火電機組在豐水期大量停機,使負荷中心失去電壓支撐,大大降低了電網的電壓穩水平;同時,因為四川電網中的無功補償裝置全為態無功補償電容器(或電抗器) ,這些設備只能在正常運行狀態下起到無功補償和電壓支撐的作用,而在電網出現事故時,能起到電壓支撐作用,反而會促使電網電壓崩潰事故的發生。
  11. Biomechanical comparison of static three - dimensional screw - plate system and dynamic hip screw in fixing unstable femoral neck fracture

    態三維釘板與滑動鵝頭釘固股骨頸骨折的生物力學比較
  12. The principle and the mechanical structure of the air - gap inductance - type transducer are analyzed in this article, and the static parameters are calibrated. dynamic calibration is applied to air - gap inductance - type transducer which is not good in dynamic capability, to obtain the dynamic parameters of the transducer and its measuring circuit. based on the result of the dynamic calibration, the transducer and its serving circuit are modeled so that the method of how to improve the dynamic performance can be found

    本文對現有氣隙式電感傳感器在原理和機械結構上作了深入的分析,對其參數進行了態標;並且針對常規電感傳感器動態響應低,宜用於快速動態測量的缺點,引入測試動力學的思想,設計了一套動態校準,對現有傳感器進行多次動態校準,根據動態校準的實驗結果對現有傳感器建立數學模型,得到現有傳感器的動態特性;在此基礎上,根據磨床工件在線檢測的要求,設計一個硬體補償來提高整個測試的動態特性。
  13. Electricity power system computer simulation the computing include the current computing, simple fault computing, complicated fault computing, quiescent stabilization the computing and development stabilization the computing etc. because the computing software of electricity power system are all the earlier words software, it is very difficulty for studying and isn " t easily for using and ca n ' t draw the graphics of the electricity power system ect

    對電力的運行狀態進行分析需要進行大量的計算,電力計算機模擬計算主要包括潮流計算、簡單故障計算、復雜故障計算、態穩計算和動態穩計算等計算。本文針對當前電力計算軟體大多都是早期的字元界面的軟體,學習難度大,易使用,以及具備電力圖形繪制等弊病,對microsoft公司的visualc + + 6 . 0及其所提供的microsoft基礎類庫( mfc )展開了理論與應用的研究工作。
  14. But another question the control system brings is that the aircraft manipulation character does not meet the requirements. the aircraft needs one more control systems to make the manipulate character satisfy the character requirements. both control systems are called control and augmentation systems

    高空高速飛機本身性能足,加入增穩控制后雖然滿足了穩性的要求,但造成了操縱性能的足,必須再加入一個增控迴路來解決這個問題。
  15. Stochastic and uncertain performance of power systems is thoroughly studied with a probabilistic simulation method in this paper. based on modeling of element failure and dispatching measures, static, dynamic and integrated securities are analyzed, and hence operation states are quantitatively classified. in probabilistic static security assessment, sequential and non - sequential monte - carlo sampling techniques are applied considering time varying parameter and constraints

    本文採用概率模擬方法,深入研究了電力運行中的隨機和特性,在對元件隨機故障和調度控制措施建模的基礎上,對態安全、動態安全和綜合安全進行概率評估,建立了電力運行狀態的量化分析模型。
  16. The stresses are measured on the residual limb / prosthetic socket interface with the advanced stress analysis instrument. by the analysis of the data, it is concluded the stress distribution while the subject are standing and during walking on different phase of gait cycle. the stabilization of the medial - lateral and anterior - posterior are analyzed

    對患者穿戴接受腔的受力情況進行了實際測量,通過對所測數據的分析,總結出態和動態步態周期各階段殘肢表面的受力情況,分析了前後側和內外側的穩性,並將實際測量結果與理論分析進行了比較研究,說明了二者的相同點和同點以及產生同的可能原因。
  17. The portal frame is a hyper static structure, if it is analyzed by material - strength method, it is complex and large simplification must be made, and calculation accuracy is lower. larger safety - factor is often adopted to ensure the portal frame safe, this results in large structure size, more material cost and higher manufacture cost

    該門架結構是一個高次問題,採用傳的材料力學方法很難求得解析解,且要想求解需對結構作較大的簡化,造成計算結果誤差大,為此,常採用加大安全數的方法以保證結構的安全可靠運行,結果使結構尺寸加大,浪費材料,增加製造成本。
  18. The validity of the subsection simulation method is proved, in which postprocessing technology is widely used. the sixth, the static simulation is neces sarily to find out the dynamic system ' s initial state for dynamic simulation. the gun is looked upon as a hyper - equilibrium structure, and a so - called " parallel projection method " is brought forward for the gun ' s static simulation

    提出了一種求解線性方程組的方法?平行投影法,針對adams對超態分析力的情況,研究了求解全炮態問題的途徑和方法,並應用平行投影法求解車體懸掛的初始平衡力,求得了較符合客觀事實的解,從而完成了火炮發射前的態分析。
  19. So the paper combined the fuzzy logic control and recurrent neural network, and the recurrent fuzzy neural network ( rfnn ) controller is introduced into the speedsensorless vector control system. moreover, an online parameter training methodology, which is derived from the lyapunov stability theorem and gradient descent method is proposed to increase the learning capability of the rfnn. the rfnn controller has a better performance than the pi controller system ; the effectiveness of the proposed control scheme is verified by simulation results

    因此論文將模糊控制和具有優越動態性能的遞歸神經網路結合起來,取長補短,提出了一種遞歸模糊神經網路控制方法,利用神經網路來實現模糊推理,可動態的調整隸屬函數的形狀、位置以及神經網路遞歸權值,並對其與pi控制器的交流調速控制進行了模擬比較,模擬結果表明與普通的pi控制器相比較,遞歸模糊神經網路控制器有較好的動態性能,控制器的收斂速度快、差小,在遇到參數發生變化和外部性問題時魯棒性、抗擾動性有明顯的提高。
  20. Topics covered include : static equilibrium, force resultants, support conditions, analysis of determinate planar structures ( beams, trusses, frames ), stresses and strains in structural elements, states of stress ( shear, bending, torsion ), statically indeterminate systems, displacements and deformations, introduction to matrix methods, elastic stability, and approximate methods

    主題包含了:力平衡、合力、支承條件、平面結構(梁、桁架、構架)分析,結構構件之應力與應變,應力狀態(剪力、彎矩、扭力) ,靜不定系統,變位與變形,矩陣方法介紹,彈性穩及近似值解法。
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