setting velocity 中文意思是什麼
setting velocity
解釋
沉降速度-
According to the system technology require, adopting singlechip realize open loop digital control of hdclsm ; using v / f conversion and complex key - control method realize digital setting of system parameter, such as velocity ; using micro - stepping control insure the motor running more smoothly ; adopting debasing speed control method to eliminate the mechanical impact of distance termination effectively ; at the same time, analyzing main power circuits drive circuit and protect circuit of system, completing hardware design and facture and software programming and debugging ; at last, making a whole test in hybrid rotary step motor. the experiment result indicates that this control system reaches the qualities required and run smoothly also
根據系統技術要求，採用單片機實現了混合式直流直線步進電動機的開環數字控制；利用v f變換和復合鍵控方法實現了系統轉速等參數的數字設定；利用細分控制技術保證了電機運行的平穩性，並進行了波形分析和理論研究；採用單片機軟體降速控制策略解決直線步進電機行程末端的機械沖擊問題；同時對主功率電路、驅動電路和系統保護電路進行了分析，完成了硬體設計、製作和軟體編程、調試，最後在混合式旋轉步進電動機上進行了全面測試。 -
In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory
由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果 -
According to the " solid - particle " theoretical model, a theory model of the dynamic burning - velocity of a rocket - portfire in its igniting delay - time cannulation is established, a theory model of the dynamic delay - time is educed. the factors are analyzed, setting position and shape of a igniting delay - time cannulation that affect its igniting delay - time, the theoretical basis is offered to develop the high - level precision rocket - portfire in the air
本文根據「固體粒子」效應理論，建立了點火延期管動態燃速數學模型，導出了點火延期管動態延時控制的理論計算模型，分析了火箭空中點火延期管的安裝位置及其形態對其延期時間的影響，為高精度火箭空中點火具的工程研製提供了理論依據。 -
Based on the analysis of thin sections by microscope, measurement of porosity and density, and geological setting, we tested the rock physical parameters of sandstone, siltstone, carbonate and other transitional sedimentary rocks by the mts system under formation conditions ( temperatures, pressures and pore fluid properties ). the rocks we tested are from tertiary ( including zhujiang formation, zhuhai formation, enping formation, hanjiang formation ) of zhujiangkou basin in southern china sea. according to the analysis results, we studied the main ultrasonic wave velocity characters of rocks, which are compressive and shear wave velocity and poisson ' s ratio under different formation conditions
在對珠江口盆地第三系儲集巖進行顯微鏡薄片分析、孔隙度和密度分析，以及地質背景分析的基礎上，利用巖石物理參數測試系統（ mts ）模擬地層條件（溫度、壓力和孔隙流體狀況）測試了珠江口盆地第三系（包括珠江組、珠海組、恩平組、韓江組，以下有關討論同）砂巖、粉砂巖、碳酸鹽巖及其過渡性巖石物理性質，重點研究了不同地層條件下巖石的聲學特徵（巖石的縱橫波速度和泊松比） 。 -
The setting velocity of a particle directly characterizes its reaction too flow.
單顆泥沙沉降速度直接表現出它對水流的反作用。 -
Allowed working pressure not only relate to material diameter thickness of protective tube it is also relative with its structure form setting measure inserting depth velocity of flow and sorts about measured medium, etc
允許工作壓力不僅與保護管材料直徑壁厚有關還與其結構形式安裝方法插入深度以及被測介質的流速和種類有關。 -
A new robust adaptive scheme which are used for tracking of this robot with parametric and bounded external uncertainties is proposed in this thesis. the controller is consist of a controller which is proposed by slotine1 ' 1 and nonlinear continued feedback compensation part. by estimating the unknown physical parameters of robot on - line, it can eliminate the effects result by parameters and external disturbances and guarantee gas and uniform boundedness of parametric estimation. the only information required in setting up the strategy is the output states of jionts, while the inversion of the inertia matrix or estimation the bound of the inertia matrix and measure the jionts accelerations are not needed. it is shown by simulations that the proposed control scheme has quicker convergence velocity and better control precision than paper [ 1 ] and control schemes at present
針對該模型具有參數及有界外部擾動不確定性時提出了一種新的魯棒自適應控制策略，控制器由基於slotine的控制器和非線性連續反饋補償控制器構成。通過在線估計機器人的未知物理參數，有效的消除了由參數及外部擾動所引起的不確定性影響，保證系統達到漸近穩定和參數估計一致有界。與現存的許多控制方法相比，該控制策略不需求解慣性矩陣的逆或估計慣性矩陣的界，不需測量關節加速度，而唯一需要了解的只是系統輸出的位置及速度狀態。 -
Research on setting of freeway lower velocity limit for trucks
高速公路貨運車輛速度下限設定研究 -
Through setting up high velocity oxygen / air fuel spray the numerical model of field sheds, carrying the numerical simulation to high velocity fuel spray velocity characteristic and temperature characteristic of particle, its result has announced high velocity oxygen / air fuel spray particle change laws of velocity and temperature
摘要通過建立多功能超音速火焰噴塗火焰流場的數值模型，對超音速火焰噴塗粒子的速度特性和溫度特性進行數值模擬，其結果揭示了多功能超音速火焰噴塗粒子的速度和溫度的變化規律。 -
To solve the problems that have slow velocity, poor precision, lower efficiency for the traditionally artificial command guidance in the current flight test method for the airborne radar of the target formation so that the current flight test method for the airborne radar doesn ' t meet the requirement of flight test, the basic whole direction guidance way and so on, the main function setting and model structure of the automatical command guidance of the target formation flight test for the airborne radar were introduced, the mathematical models for the automatical command guidance of the multi - target formation flight test were built and they were realized and verified on the research and manufacturing of the flight test automatical command guidance based on the ground radar and gps
針對戰斗機雷達目標編隊傳統的人工指揮引導速度慢、精度差、效率低，導致現有試飛手段滿足不了試飛需求的問題，介紹了機載雷達目標編隊試飛自動化指揮引導的基本全向引導法等方法、主要功能設置和模塊體系結構，建立了機載雷達目標編隊試飛自動化指揮引導實現模型，並在基於地面雷達和gps試飛指揮引導自動化系統研製中得到實現和驗證。 -
The instrument of multi - function digital signal display is introduced. the instrument can display different content such as velocity, rotational speed and counter depend on setting different parameters
摘要設計了一種用於脈沖信號測量的數顯表，該表可以通過給微處理器設定不同的參數對所測的脈沖信號顯示不同的內容，具有線速度顯示、轉速顯示、計長顯示、計數顯示等多種功能。
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