rate servo 中文意思是什麼
rate servo
解釋
速度跟蹤系統-
This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective
本論文針對傳統伺服控制系統效率不高、元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷，利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法，提出了在液壓系統中加一個定差減壓閥的新思路，較好地解決了液壓伺服系統存在的上述問題。 -
A transparent model is used to make the deflection jet board grounded on the inhere enlarged dimensions. the finished experiments are conducted to catch the flow rate directions and the situation of cavitation using a high - speed video cameras. in this paper, the finite element analysis and visualiation research of servo valve prestage jet flow field are carried out, which establish the theoretical foundation for mathematical model of servo valve prestage and the whole mathematical model of hydraulic servo valve
在對射流前置級驅動的伺服閥射流流場數值模擬的基礎上，用有機玻璃在偏導射流板原始尺寸的基礎上進行了擴大，製作了透明的偏導射流板，運用高速攝像機、液壓泵站等組成了可視化實驗系統，對射流流場的流速方向、渦流、氣穴等現象進行了多方位的觀測，並通過對接收管接收壓力的測試，對流場分析結果進行了驗證。 -
This paper studies on used the ac servo system based on ti dsp ( lf2407a ) and the foc and digital signal processing thorem, achieves following results : algorithm. we employ svpwm ( space voltage pwm ) algorithm, improve the efficiency of the electric source, and decrease the harmonious elements. we build the mathematic model of the system and simulate it on matlab platform, dsigne segmented pid regulator to adapt variable speed and widen the speed range. measurement. the velocity and electric current measuring, we adopt multi - sampling - rate and digital filter principles. as more improvements we make, the whole system gets a good results. pc control. the complete controlling system can be controlled remotely. so we develop the pc controlling program.
採用磁場定向脈寬調制演算法，提高了電源利用率，降低了逆變電壓的諧波，改善了電機的運行特性，降低了對電網的污染；在matlab平臺上建立了交流永磁同步伺服電機和電壓空間矢量脈寬調制控制系統的數學模型，在模擬的基礎上，對傳統pid調節器進行了改進，提出轉速調節器和電流調節器採用分段pid結構，根據給定轉速所處的區間，自動選擇相應pid調節器的參數，拓寬了調速范圍，提高了控制精度。 -
In order to study active vibration control with hydraulic servo deeply, the theory model of actual two - stage isolation mounting with hydraulic servo is set up. the force transfer rate of the system is deduced by the transfer function analytical method. the computer simulation of active vibration control performance is made for various control parameters and inhere parameters
為了深入研究液壓伺服振動主動控制，針對實際柴油機液壓伺服振動哈爾濱工程大學博士學位論文主動控制實驗臺架，建立了液壓伺服振動主動控制系統模型，並進行了數字模擬研究，討論了各種控制參數的引入對力傳遞率的影響，另外討論了系統的固有參數的變化對力傳遞率的影響，為以後的液壓伺服振動主動控制臺架的改造和振動控制提供了有益的參考依據。 -
The authors have observed the progress of deformation and destruction of coal bodies in the experiment, carried out the macroscopic and microscopic research of the destruction progress of coal samples under load by means of servo electro - hydraulic loading test and electromagnetic radiation and audio emission monitoring, analyzed the cracking rate of coal samples under different situation, investigated the formation and development of cracking by use of fracture and elasticity mechanics, and thus established a sound experimental basis for the prediction by using gray classification
摘要進行了煤體變形破壞過程實驗，利用電液壓伺服加載試驗、電磁輻射和聲發射監測手段，從宏觀、細觀、微觀三個方面對煤樣受載破裂過程進行試驗研究，分析煤樣的裂隙發展速度及其所處的不同的狀態，並參照目前的預測方法提出了煤與瓦斯突出危險狀態灰色分類方法。
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