速度過調 的英文怎麼說
中文拼音 [sùdùguòdiào]
速度過調
英文
speed overshoot-
Through the detailed analysis of the aaf, the defection of using chirp - fourier transform in guidance radar signal processing is pointed out
通過對加速度模糊函數的形態分析也指明了針對線性調頻信號的二次相位匹配處理（ chirp - fourier變換）在應用到制導雷達信號處理中所存在的缺陷。And the deficiencies are pointed out in present researches, such as highway capacity, level - of - service, influence factor of road alignments, etc. from these, it has confirmed that the thesis should be studied from rational analysis, quantitative analysis of level - of - service, impact on capacity of road alignments, setting - up simulation model, etc. the high - accuracy gps dynamic data acquisition appearance is proposed to be used for the first time to carry on the experiment of overtaking on two - lane highways, and experiment scheme is designed according to the driver ' s perceive to judge each overtaking course. based on the experiment data, it can get two important parameters of acceptant gap ? the critical gap of overtakable time headway and returnable time headway through data processing, which can offer the strong support to the research of two - lane highway capacity with qualitative and quantitative analysis. besides, the experiment methods is provided to observe overtaking ratio and to measure the
研究中首次提出了運用高精度gps動態數據採集儀對雙車道公路上的超車行為進行觀測，設計了根據駕駛員感受度來衡量超車過程的實驗方案，並通過後期數據處理得到了超車過程中兩個重要的可接受間隙參數-可超車車頭時距和可回車車頭時距的臨界間隙值，為定性和定量分析雙車道公路通行能力提供有力的數據支持;同時，還提出了觀測超車率的實驗方法以及測量加速度干擾的實驗方案，統一了計算加速度干擾的時間統計間隔，為雙車道公路的服務水平量化研究奠定基礎;最後還簡單介紹了駕駛員問卷調查法和模擬程序中模型參數標定和驗證的數據採集方法。Pre - data gathering module achieves the collection and communication of sixteen - route temperature signal. speed measuring and controlling module realizes the control of refolw soldering transfer speed by manipulating transducer. on - off outputting module fulfills calefaction control of calefaction tube by solid state relay. above position operator software programs by delphi, and realizes pid parameter automatic timing and no - oversnooting temperature control. software has friendly interface, convenient operation, complete functions
前置數據採集模塊完成16路溫度信號的採集和通訊；速度測量模塊與速度控制模塊通過控制變頻器來調節迴流焊的傳輸速度；開關量輸出模塊通過固態繼電器對加熱管進行控制；上位機軟體採用delphi編程，實現了pid參數自整定以及無超調的溫度控制。In the research, a set of simulation equipment is developed to examine the drivers " static and dynamic fatigue. recur to the apparatus, contrast and control experiment are made among different ages, workload intension and workload factors group. the endings summarize as following : ( 1 ) driving sensation fatigue investigation ( investigation of psychological and physiologic index and contrast investigation of fatigue ) ; continuous driving load and discrete driving load investigation of fatigue
? ?門）駕駛疲勞平衡穩定性是通過在力檢測臺上描繪人體重心軌跡的方法，提出檢測駕駛員疲勞平衡穩定指數，在不同狀態下（傾斜度15 30 『以及閉目等狀態下）對不同負荷、不同年齡分別進行測試，建立駕駛疲勞客觀測試評價體系； n ）經實驗室研究與現場調查，通過對駕駛疲勞與駕駛時間、駕駛速度等關系的研究，提出了不同年齡、不同條件下的最大連續安全駕駛時間標準，日駕駛時間標準，最大安全行車速度標準等。Growth and development of animals were regulated by many factors including gene, environment, nutrition and endocrine. in endocrine system, growth hormone ( gh ) always taks up a centerlly regulative place. previous studies have shown that patients with gigantism or dwarfism have abnormal high or low plasma gh levels, respectively, and animals treated with exogenous gh markedly improved its growth. therefore, it is reasonable to enhance the levels of gh in plasma by some techniques will result in improvement of animal production performance
在內分泌系統中，盡管任何一種內分泌激素都不能單獨地調控動物全部生長和發育過程，不過生長激素在其中仍占據著中心調節作用的位置。已知，巨人癥患者生長激素水平極度的升高，而侏儒癥患者的生長激素水平則顯著地降低，同時，注射外源性生長激素可明顯地提高動物的生長速度，改善了動物的胴體組成。The results are summarized below : 1 ) study on soil science indicates that soil granular structure is the focus adjuster for soil fertility and it affects the space, water - grasp, aeration and anti - erosion of soil. and the percentage of aggregate is one of the key index that decides the speed and extent of soil erosion, hardening and degeneration because the soil degeneration will first lead to the disappearance of crumb - structure. so it is very important that the physical course and character of soil in different land use pattern are realized
現將主要結果摘要如下： l 、士壤學研究表明，團粒結構是土壤肥力的中心調節器，影響著土壤的空隙性、持水性、通透性和抗蝕性；任何土壤的退化首先將表現出團粒結構的消失；團聚體百分比是決定土壤侵蝕、板結等物理過程速度和幅度的關鍵指標之一，了解不同土地利用和土壤管理方式的物理過程和性質相當重要。The result is compared to the ideal velocity distribution, and the model is adjusted, calculations improved to attain hest results
通過與理想的速度分佈相比較，從而調整幾何模型和優化計算，獲得最佳速度分佈。It is controlled by computer servo, motor - driven pole automatically standard key board input, test data can be memoryedtest report can be printed automaticallyeasy to operate
本試驗機採用計算機伺服控制系統，計算機控制操作的全過程，自動恆定加載，加載速度可調，絲桿採用電動升降；試驗數據自動儲存處理及試驗報告自動列印，可以聯網，而且操作簡單。It is controlled by computer servo, motor - driven pole automatically standard key board input, test data can be memoryed and test report can be printed automatically and easy to operate
本試驗機採用計算機伺服控制系統，計算機控制操作的全過程，自動恆定加載，加載速度可調，絲桿採用電動升降；試驗數據自動儲存處理及試驗報告自動列印，可以聯網，而且操作簡單。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The attainment proves that the method is prompter than the conventional ones and reduces the amount of work greatly. moreover, when the db is connected with regional information system of transfered, it is possible to study the changing characterises or regional land use through quantity change, furthemore, to find out the decipline and the dynamic changes of spatial distribution of type of land use through land use maps
結果表明與傳統調查方法相比速度快，工作量大大減少，且把數據庫與區域信息系統連接或被調用，不僅可以通過數值的變化，研究區域土地利用狀況的變化特徵，還可以從圖形上體現出土地利用類型的空間分佈規律，以及空間分佈的動態變化情況。A further improvement is achieved in the process and reliability by using sectionalized weight and self - regulating search
通過採用分區間加權合併技術以及自調整搜索方案，進一步提高了系統的處理速度和工作可靠性。The experimental results further demonstrate that the combination of incompatibility polydimethylsiloxane and polyacrylate by co - vulcanization improves the both compatibility and broadens the low temperature and high temperature functional region. while in sin, to improve microphase structures and damping properties, the design to increase compatibility between two compositions and modulate crosslinking density as well as relative reaction rate of two compositions, is also effective
以上實驗結果表明，在復合橡膠阻尼材料中將聚硅氧烷與聚丙烯酸酯通過共混硫化相結合，改進了二者的相容性，拓寬了其阻尼功能區的低溫和高溫溫域；而在sin中通過改善組四川大學博士學位論文分間相容性，調節交聯密度控制其微相結構和兩種組分相對反應速度的快慢，進而控制材料阻尼性能的設計是行之有效的。Through the research work of this article, it is shown that cfd technology can efficeintly instruct the design of indoor air distribution and evaluate indoor air quality and ventilating effect ; the distribution of heat sources have great impact on indoor air distribution ; under variable air volume condition, the indoor temperature and velocity fields are quite even and the thermo - environment is relatively good when using diffusers with coanda effect such as square diffuser and slot diffuser to supply air
經過本文研究發現，利用cfd技術可以有效地對空調室內氣流組織設計進行指導，全面對室內空氣品質和通風效果進行評價。熱源分佈對于空調室內的氣流組織具有極其重大的影響。在變風量條件下，利用具有良好貼附效應的送風口如方型散流器和條縫風口送風，空調室內的溫度場和速度場較均勻，室內的熱環境良好。Considering of the differences of task scheduling between a grid and a distributed system, this dissertation designs a real number encoded mode that mapping every task to a random resource directly by improving the encoding mode of the traditional genetic algorithm, and gives a particular design to the encoding and decoding mode. at last, this algorithm is simulated in the grid simulator. the experiment results show that the reformative genetic algorithm not only has a holistic searching ability, but also makes a fast convergent speed, which provides a preferable performance
本文根據網格計算任務調度的特點，提出了基於改進的遺傳演算法的網格任務調度，通過對傳統遺傳演算法的編碼方式進行改進，針對網格任務調度與一般分散式系統任務調度的不同之處，設計了資源?任務的一一對應的實數編碼方法，詳細設計了其編碼及解碼方式，最後在網格模擬器中進行了模擬，實驗數據證明了改進后的遺傳演算法即具有全局搜索能力，又具有較快的收斂速度，具有較好的性能，該實驗達到了本文以實現任務調度的最優跨度為目標的實驗目的。A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method
提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求，選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化，再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法，通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍，以速度調節器和電流調節器的參數為染色體中的基因，通過遺傳演算法在搜索范圍中優化這些基因，獲得優化解.實驗結果表明，所設計的參數能使系統性能指標有顯著提高After absorbing heat, the temperature rises to rated value and is let out at hot - blast mouth. when the hot - blast temperature reaches to the rated upper limit, the burner will stop to work automatically or turn to small fire. when the hot wind temperature reaches to the rated lower limit, the burner will kindle again or turn to big fire
需加熱的空氣通過選配的鼓風機強行送入熱風爐、吸熱后溫度升至額定值從熱風出口送出、當熱風溫度達到額定的上限溫度時，燃燒器會自動停止燃燒或自動轉為小火陷燃燒，當熱風溫度降低到額定的下限溫度時，燃燒器又會重新點燃運行或轉為大火燃燒，升溫的速度可調進風閥來實現。The result showed that the growth of junior in the cities is still in the trend of grown - up earlier ; the growth enter the low speed growth stage gradually ; the obese question of ten years ' old junior appears seviously ; the body weight rate of rising older than of 12 - years - old girls increase slowly, which cause the no - cordination between the body weight and the height grows to some degree
結果表明，未來10年我國城市兒童青少年生長發育有繼續提前的趨勢；生長發育逐漸進入低速增長階段； 10歲左右的兒童肥胖問題日趨顯現； 12歲后女孩體重增長速度過緩，導致一定程度上呈現體重與身高增長之間的不協調。Abstract : a new algorithm w - ecop is presented to effect incremental changes on a standard cell layout automatically. this algorithm deals with cell inserting and cell moving based on rows instead of on cells as most placement algorithms usually do. an integer programming problem is formulated to minimize the adjustment on the initial placement and a heuristic method is presented to search for a shifting path so as to optimize the wirelength. test of w - ecop on a group of practical test cases shows that the algorithm can successfully accomplish incremental placement with good quality and high speed
文摘:提出了一種新的增量式布局方法w - ecop來滿足快速調整布局方案的要求.與以前的以單元為中心的演算法不同，演算法基於單元行劃分來進行單元的插入和位置調整，在此過程中使對原布局方案的影響最小，並且盡可能優化線長.一組從美國工業界的測試例子表明，該演算法運行速度快，調整后的布局效果好The system reached control goal by experimental verification and the experimental results showed the system could produce ac excitation voltage with low harmonic, quick adjusting speed, wide adjusting range and high control precision of frequency
整個系統通過全面的實驗驗證，實驗結果充分說明所設計的系統產生出低諧波、調節速度快、調節范圍寬和頻率控制精度高的交流勵磁電壓，達到了預期的目標。分享友人