unsteady system 中文意思是什麼
unsteady system
解釋
不穩定系統-
Impact bifurcate analysis on a bearing - rotor system with unsteady oil film forces
轉子系統非線性動力特性的數值分析及實驗研究 -
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。 -
In this paper, the rotating machinery at high speed is studied. there are discussed about numerical calculating methods for non - linear dynamical system, the rotor system radial impact and rubbing dynamics behavior analysis having the nonlinear rigidity on the unsteady and non - linear oil film, the rotor system dynamics behavior analysis with bending - torsional - pendular coupling vibrations, application of wavelet, fractal and network in fault diagnosis. the main works in this paper are as follows : ( 1 )
本文以高速旋轉機械為主要研究對象，系統、深入地研究了非線性動力學系統的數值計算方法、具有非線性剛度的轉子系統在非穩態非線性油膜力作用下的徑向碰摩動力學行為、轉子彎扭擺耦合振動的動力學分析、小波和分形理論及人工神經網路在故障診斷中的應用問題。 -
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。 -
Because the air - borne imaging system is required a far acting distance and the focal length of its optical system is long. influenced by the unsteady or moving platform mounted on plane, the change between the frames of image sequence is more. problems of image fuzziness and instability tend to be striking out, which becomes a bottleneck restricting the air - borne reconnaissance, collimation, evaluating beat effect
機載光電成像系統，由於要求作用距離遠，故其光學系統焦距長，受其載體姿態變化和振動的影響，圖像序列幀間變化過大，造成觀察者覺得模糊、不穩定，己成為制約空中偵察、瞄準、打擊效果評估等功能的瓶頸。 -
At last, considering the running trait of hydraulic turbine in true power stations, combining the complex pipe line system, generating electri city, discharge flood all use of pan shi tou reservoir compute the unsteady transition process
最後考慮了實際電站水輪機組的運行特性，結合盤石頭水庫引水、發電、泄洪共用的復雜引水系統，進行了電站甩負荷引起的非恆定過渡過程計算。 -
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。 -
The lifting - line and lifting - surface design method, the harmonic analysis method based on the panel method, new section design ways, the effective operating curves are integrated into a whole design system of the unsteady propeller, the design system is effective and reliable by the design example, the model test and the application to the full scale ship
本文把升力線和升力面設計方法、基於面元法預報螺旋槳非定常性能的諧調分析方法，新剖面設計方法、有效運轉曲線計算方法組合為一套完整的非均勻流場中螺旋槳設計計算系統，經實例設計和模型試驗及實船的應用，該設計系統是可靠且有效的。 -
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。 -
Compared with the reality, it shows that this model and its parameters are defined reasonablly. to analyse the arrangement of drainage system with different spacings and depths, with unsteady flow formula and benefit index, this paper gives a two - dimensional non - linear programing model for arrangement of drainage system in the barley field, which can be solved by the method of projected gradient. by this model, we make out the optimum solution of spacings and depth of pvc pipe in littoral area of changjiang river that is s = 21. 5 8m, h = l. lm
論文通過對不同埋深、間距的塑料暗管排水布局的分析，結合非穩定流公式和效益指標，提出了麥田排水暗管布局的二維非線性規劃模型，並利用梯度投影法求解，得出長江下游濱海地區塑料排水暗管埋設的最優方案為埋深h = 1 . 1m ，間距s = 21 . 58m 。 -
Thermal stress control system actually gather the real - time data of unit sets ， compute temperature fields ， stress fields and maximum dangerous stress by the math modal ， decide target and speedup rotation in every stage of startup process ， and justify automatically to realize auto control a serial of processes of turbine ， such as speedup ， warm - up ， connecting net ， load changing ， stop and unsteady condition etc ， and improve automatic level of the unit sets. turbine auto startup ( tas ) system can automatically evaluate steam turbine ' s startup and load changing process according to thermal stress of
熱應力控制系統實際是對機組運行參數進行實時採集與監控，通過數學模型實時地計算高、中壓缸轉子的溫度場、應力場分佈，以及最危險熱應力，以確定啟動過程各階段的目標轉數及升速率，並進行自動調整，實現機組沖轉、升速、暖機、並網、升負荷、停機以及異常工況下的自動控制，大大提高了機組的自動化水平。 -
Develops an unsteady mathematical model of ventilation system for the corridor in dam
摘要以水電站壩體廊道通風系統為研究對象，建立了非穩態數學模型。 -
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。 -
A computational method is developed with couples the governing equations of the unsteady flow field and the rigid - body dynamics in six degrees - o f - freedom. 6. facing the complex multi - element and high - lift configuration, a series of methods including multi - zone algorithm and face - to - face technique is developed to lower down the great difficulties of grid generation and finish flow calculation of high - lift system with the dual - time method
採用基於自適應直角切割網格的分區面搭接方法，結合隱式雙時間推進演算法，實現了三維復雜增升裝置繞流的euler方程數值計算，發展了對存在不連續面的高陞力系統外形進行流場計算的一種方便、實用、高效的三維增升裝置繞流計算方法。 -
This strategy has many advantages : solving the problems that the system is unsteady under super - synchronization ; improving power factor of stator ( it is unity relative to that of rotor ) ; no rotor position sensor and no initial position measurement, easily building up doubly fed speed adjustment system with speed sensorless because adjusting speed is taken in the rotor coordinate and rotor current vector fixing is implemented
該方案由於引入了定子電流勵磁分量的閉環控制，使系統同時具有轉速和勵磁調節兩個調節通道，具有如下優點：一、解決了超同步工作工況不穩定的問題；二、提高了定子側的功率因數（與轉子側功率因數為1相比） 。三、由於速度調節在轉子坐標系下進行，並以轉子電流矢量定向，所以無須轉子位置傳感器，也不用檢測初始位置，易於組成無速度傳感器雙饋調速系統。 -
After practice, it is proved that this system can solve the problems appeared during the wastesewage treatment like unsteady water - quality and lower efficiency
現場運行表明，該系統全面提高了設備的自動化控制水平，能解決污水處理過程中效率低下，出水水質不穩的問題。 -
Researching on inverted pendulum can boil down to the research on nonlinear, multi - variable unsteady system
對倒立擺的研究可以歸結為對非線性、多變量、不穩定系統的研究。 -
Inverted pendulum is a typical model of multivariable, nonlinear, essentially unsteady system, and researching inverted system has the profound meaning in theory and methodology
倒立擺是一個典型的快速、多變量、非線性、本質不穩定系統，對倒置系統的研究在理論上和方法論上具有著深遠的意義。 -
Inverted pendulum is a typical model of multivariable, nonlinear, absolutely unsteady system, and research inverted system to theoretically have the profound meaning with methodology up
=倒立擺是一個典型的快速、多變量、非線性、絕對不穩定系統，對倒置系統的研究在理論上和方法論上具有深遠的意義。 -
Researching on inverted pendulum can return the knot for nonlinear, multi - variable, absolutely unsteady system, method of its control is with the way of thinking right handle the general industry process, and also has the extensive use
對倒立擺的研究可歸結為對非線性、多變量、絕對不穩定系統的研究，其控制方法和思路對處理一般工業過程，也有廣泛的用途。
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