unsteady state 中文意思是什麼

unsteady state 解釋
不穩定態
  • unsteady : adj. 1. 不穩固的。2. 不堅定的；動搖的；易變的，反復無常的，不可靠的。3. 行為古怪的；品行不好的。vt. 使不穩定，使動蕩。adv. -ily ,-iness n.
  • state : n 1 〈常作 S 〉國，國家；〈通例作 S 〉（美國、澳洲的）州；〈the States〉 美國。2 國務，政權，政府...
  1. The paper designed aerodynamic control system of pith and yaw channels and roll angle stabilization system, by using unsteady - state error follow - up control theory and state observation station theory in modern control theory

    本文使用現代控制理論中的無靜差跟蹤控制系統理論與狀態觀測器理論，設計了俯仰、偏航兩個通道的氣動力控制系統和滾轉角穩定系統。
  2. To appreciate the unsteady environment existing in liquid propellant rocket chambers it is necessary that the steady state be well understood.

    為了分析液體推進劑火箭發動機燃燒室中存在的非穩態環境，必須很好地了解穩態狀態。
  3. This paper introduce an exertion way of mensurate unsteady state, much improvement have be mading in the mensuration of the thermal conductivity for conductor of undesirability with the counter system

    摘要介紹了一種非穩態測量方法的運用，結合計算機系統，使不良導體熱導率的測定得到較大的改進。
  4. By study on cleaning system of assembling cleanroom, contaminating material concentration formulas in the condition of steady - state and unsteady are deduced

    本文主要對裝配式潔凈室凈化空調系統的性能進行研究，推導出穩態和非穩態情況下裝配式潔凈室室內污染物質濃度的公式。
  5. It specially points out that there exit some practical problems in the process of the reformation of our state - owned enterprise, such as the vague relation and unclear responsibility between production and right, unsteady judicial system, unseparated government and enterprise, long agency chain, private and personalized right, vague and publicized responsibility and so on

    著重指出，我國國有企業在改革過程中存在的一些現實問題。例如：產權關系模糊、責任不清；法人制度不健全；政企不分；代理鏈過長；權利日益私有化和個人化、責任日益模糊化和公有化等等。
  6. Analytical solution of crystal growth for two - dimension unsteady state

    二維非穩態晶體生長控制方程的解析解
  7. Abstract : by using the 3 - d unsteady state heat transfer equation, the heat convection and radiation between the checker and the gas which flows through the checker holes, and the heat conduction among the checker in the chamber of the hot blast stove were studied. the time dependable gas temperature and the temperature distributions within the checker were obtained

    文摘:應用三維非穩態熱量傳輸方程，對高爐熱風爐在燃燒過程中蓄熱室內格子磚與氣體之間的對流和輻射傳熱，以及格子磚內部的導熱過程進行了耦合求解.得到了在燃燒期內格子磚及燃燒過程中燃燒廢氣的溫度分佈情況及其隨時間的變化規律
  8. For unsteady - state calculations, jameson ' s dual - time method is used. to confirm the validity, effectivity and reliability of developed flow solvers based on ausm + scheme, test cases of steady / unsteady transonic flow of naca0012 airfoil and onera m6 wings are investigated first

    本文首先以naca0012翼型、 oneram6機翼為算例，驗證了本文發展的基於ausm +格式的跨音速定常、非定常navier - stokes euler方程解算器是正確、有效和可靠的。
  9. The dynamics behaviors of the flexible jeffcott rotor system supported by unsteady short dynamic bearing are investigated. based on nonlinear unsteady - state dynamic n - oil film force model described by three functions the local stability of the periodic solutions with the controlling parameters, rotational speed ratio, imbalance amount, damping ratio and viscidity, are predicted by using the floquet multiplier. it is found that the period doubling bifurcation is caused by a certain imbalance amount and the hopf bifurcation is created by the lost stability of the oil - film

    研究了非穩態動載短軸承支撐的jeffcott柔性轉子系統的動力特性，基於可用三個函數表示動態油膜的非穩態非線性油膜力模型，將轉速比、不平衡量、阻尼比、粘度作為控制參數，利用floquet乘子預測周期解的局部穩定性，發現倍周期分叉是由一定量的不平衡引起的，而hopf分叉是由油膜失穩造成的。
  10. In first part of the thesis, by a review of the research on aircraft sonic fatigue, the formulas for calculating natural frequencies of the typical aircraft skin - panel structure with four edges simply - supported or four edges fixed - supported were drawn, the response of displacement and stress was analysed under the condition of random white noise loading with the steady - state or unsteady - state. the procedure how to use data of s - n curve under constant loading for predicating the fatigue life of skin - panel subjected to random loading was shown

    通過對聲疲勞問題研究的回顧，根據典型飛機蒙皮壁板模型，整理了四邊固支，四邊簡支兩種邊界條件下多階模態固有頻率，非平穩及平穩隨機白噪聲載荷下的位移和應力響應，以及如何從等幅s ? n曲線求得隨機載荷應力下的疲勞壽命。
  11. In this paper, a image processing method has been presented, with this method mean temperature of testing object can be arrived at from infrared picture and the interior temperature gradient of the test pieces in the situation of transient heat transfer can be got. unsteady - state heat transfer mechanism of wall has also been studied in this paper. on the basis of theoretical analysis and experimental study we can get such conclusions : infrared testing of energy conservation of buildings is rapider and more accurate than heat - flow meter method which is popular at present ; heat transfer mechanism in the situation of unsteady - state heat transfer has been analyzed through experiment ; the interior layers ’ temperature of the test pieces ascent in company with

    本文在理論分析和試驗研究的基礎上得出以下結論:本文研究的紅外檢測建築節能的方法比目前存在的熱流計法更快速、更準確;用試驗分析了墻體在非穩態傳熱情況下的傳熱機理;試件各層溫度隨著受熱面環境溫度的上升而上升，只是上升的程度不同，響應時間不同，這是由於試件內部有一個蓄熱過程;通過傳熱理論和建築熱工計算推導出了非穩態傳熱情況下的傳熱系數的計算公式;本文用matlab進行紅外圖片的處理，進而得到被測物的平均溫度;用數據處理軟體擬合溫度熱流。
  12. A new approximate solution for multiple - layer cylindrical walls of unsteady - state heat conduction

    一種求解復合圓筒壁非穩態導熱問題的新方法
  13. Application of unsteady state conversion process to sulphuric acid production with low - so2 off - gas

    低濃度煙氣非穩態轉化制酸工藝的應用
  14. The cryogenic performance of scq and ssm superconducting magnets are investigated both at steady operation state and at unsteady state in detail, including flow and heat transfer characteristics of cooling medium, and electromagnetic, mechanical characteristics of magnets

    本文以bepc中關鍵部件scq 、 ssm超導磁體為主要研究對象，研究了超導磁體在低溫下的穩態與非穩態工作特性中的若干問題，包括冷卻介質的流動特性、傳熱機理，磁體的冷卻結構、電磁與機械性能等。
  15. Application of simulation annealing algorithm in calculation of relative permeability from unsteady - state displacement experimental data

    模擬退火演算法在基於非穩態驅替實驗的相對滲透率計算中的應用
  16. Lii continuous casting research it is an important method to establish the heat transfer mathematical model of slab continuous casting to simulate secondary cooling process by means of two - dimensional unsteady state heat transfer mathematical model

    應用二維非穩態傳熱數學模型建立板坯連鑄的凝固傳熱模型進行模擬研究是連鑄技術研究的重要手段。
  17. Stability about the solution of crystal growth in the two - dimensional unsteady state problem

    二維非穩態晶體生長問題解的穩定性
  18. Many difficulties exist in the development process of agriculture economy nowadays, and it appears an unsteady state in development. agriculture cannot play its basic role before solving these problems and dispelling the unsteady state

    解決農業經濟發展中存在的問題，消除農業經濟發展的非穩定狀態，是充分發揮農業基礎性作用的前提。
  19. This machine consists of bin, vibration chamber, coupling and motor. the vibration chamber is made up of eccentric wheel. rubber soft piece, main shaft and bearing. the adjustable eccentric hammering is transmitted to the centerline of main shaft by motor drive, and produce centrifugal force at unsteady state so as to change the strength of material and form vortex in the sieve. weghted regulator and amplitude can be adjusted as per different material and sieve mesh

    本機由料斗、振蕩室、聯軸器、電機組成，振蕩電腦內由偏心輪、橡膠軟體、主軸、軸承組成，可調節的偏心重錘經馬達驅動傳到主軸中心線，在不平衡狀態下，產生離心力，使物料強度改變在篩內形成漩渦，重錘調節器和振幅大小可根據不同物料和篩網進行調節。
  20. Unsteady - state oil - gas relative permeability measurement

    油氣相對滲透率測定.非穩態法
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