速頭系數 的英文怎麼說
中文拼音 [sùtóuxìshǔ]
速頭系數
英文
velocity-head coefficient-
The additional flow is formed by the device of dentoid baffle, and the application of the device of dentoid baffle cooperated with a stilling basin has been investigated by systematic model tests. based on the research results, the hydraulic problems such as the characteristics of hydrodynamic pressure and cavitation on the head of the denotid baffle, the properties of flow under the condition that the device of denotid baffle is used with a stilling basin, the hydraulic computation about a stilling basin, the estimation of energy dissipation and its various affection factors, the mechanism and effect of energy dissipation, and distributions of velocity and pressure and aerating concentration, etc, have been analyzed ; the method and step of hydraulic design of device of denotid baffle by which the additional flow is produced has also been proposed
文中利用齒墩設施實現附加射流,對齒墩設施與消力池聯合應用進行了大量的和系統的模型試驗,分析研究了中低佛勞德數條件下,齒墩墩頭的動水壓強及空化特性,齒墩設施與消力池聯合應用時的流態特性,消力池的水力計算,消能量的估算及其各種影響因素,消能機理和效果,消力池內的流速、壓強特性,摻氣濃度分佈等水力學問題,並提出了實現附加射流齒墩設施的水力設計方法和步驟。Our general products are : chicken fixed - value controller, cb series packing and batching controller 1 - 8 kinds, orthoptic electronics crane scale, single - hopper packing scale, multi - hoppers high - speed packing scale and filling scale. we also meet those special demand and specification
目前公司生產的常規產品有: chicken定值控制器cb系列包裝秤控制器配料秤控制器1 8種,直視式和數傳式吊秤,單頭包裝秤,多頭高速包裝秤及液體灌裝秤等,同時也承接客戶特殊規格產品設計製造。Another based mathematics model about the anchor cable is used for ship - anchor system. the numerical calculation have been worked by programmed in the matlab language. at the same time the influence that the dragging speed of antisubmarine helicopter and the height over the surface of ocean acts on the shape and the tension of underwater cable, and that the current velocity and the diameter of anchor cable acts on the shape and the tension of anchor cable, has been calculated
把建立的水下拖索數學模型和錨索數學模型分別應用於航空吊放聲納探頭?纜繩動力學系統和船?錨系統,採用matlab語言編程進行了數值計算,同時分別計算和分析了反潛直升機拖速、距海面高度對拖索形狀和張力的影響以及海流速度、錨索直徑對錨索形狀和張力的影響。By picking up actual load on road of car body, use the electro - hydraulic servo road simulating system and the remote parameter cantrol system to iterate, take the iterating control target as an accelerated speed signal of spindle nose, iterate separately the loading spectrums on different road surfaces and finally merge the iterated results to obtain the loading spectrums for tests in the test bench
通過對轎車車身實際道路載荷的採集,採用電液伺服道路模擬系統和遠程參數控制系統進行迭代(迭代控制目標為軸頭加速度信號,對不同路面的載荷譜分別進行迭代,最後將迭代的結果合併) ,得到用於臺架試驗的加載譜。Preliminary conclusions are got through the analysis of the experimental data such as effect of the ice velocity on the ice force, ratio of components of forces when ice sheet acting on the vertical bank - head, ice force ratio of vertical to 45 incline as well as ratio of level ice force to the vertical ice force when acting on 45 incline
對試驗數據諸如冰速對冰力的影響、冰排作用於垂直面堤頭時各向分力的關系比、垂直面與45斜面冰力關系比以及作用於45斜面時其水平與垂直冰力的關系比等進行了分析,並得到初步結論。Dsps is used to accurately detect the moving area of multi - moving objects and information of their geometrical position in the system, at the same time, it pick up the parameters of geometrical feature, gray feature and planar velocity of each area, at last, we integrate the techniques of multi - moving objects detection and construct a self - adapted system to track multi - moving objects. the camera is controlled to keep the object in its field of view. therefore we achieve a real time system to track the multi - moving objects in the complex scenes
本系統利用dsps精確檢測出多運動目標的運動區域及其幾何位置信息,並對各個運動區域進行幾何特徵參數、灰度特徵參數和運動速度參數的提取,最後根據這些特徵參數值結合多目標運動狀態檢測技術構建了多運動目標自適應跟蹤系統,並根據已經計算出的運動目標的速度矢量,通過雲臺裝置控制攝像頭的轉動,使得特定運動目標始終位於攝像機的視野中,從而完成對復雜背景中多個運動目標中特定目標的實時跟蹤。This machine is used for straight - line bevel cutting and bevel grinding and polishing for flat glass, in certain condition, it can be also used in bevel cuttig, bevel grinding and polishing for soft stone panel. the contrilling system adopts plc, it can accomplish automatic grinding cutting after entering processing parameter, convery speed adopts speed adjustment of fre quency conversion, direct drive of wheel head motor, all motions for joining in parameter adjustment completely adopt straight - rolling guide - track with front beam and wheel head lifting lntegrally. the transmission of input and output adopts synchronization tooth belt and photo - electricity switch positioning, and position limitation of two pass is much more reliable
Sxm371pa型玻璃直線斜邊磨邊機是用於玻璃直線斜邊斜切,斜磨及光拋的專用設備,在一定條件下也可以用於軟石板材的斜切斜磨及拋光。控制系統採用plc控制。輸入加工參數后可自動完成磨削傳送速度採用變頻調速,磨頭電機直接傳動,所有加工參數調整運動副全部採用直線滾動導軌,前梁與磨頭整體升降,輸入輸出傳送採用同步形帶,光電開光定位,雙行程限位更安全可靠。The time headway distribution of the simulation system based on this model can be tuned by two simple parameters, so it can accord with different time headway distribution rule in condition of practical unsaturated traffic
基於該模型建立的模擬系統,憑借兩個簡單的參數來調節不同車速的期望車頭間距,使車頭時距分佈規律符合交通未飽和時車頭時距的具體分佈情況。Eight trapezoid labyrinth flow - channels are designed through modification to the cell dimension and the number of flow cells based on the parameterized structural design. integral emitter prototypes combining exterior hull and exterior flow - channel are built using rapid prototyping technique, and structural dimension of those flow - channel are measured by optical microscope, the measuring results showed that the design can completely meet the requirement of emitter accuracy
文中以參數化的設計思想,通過改變梯形迷宮流道單元尺寸和單元數設計了8種梯形迷宮流道,採用快速成形技術製作出外管與內迷宮流道一體化的滴頭原型;利用最小標注尺寸為50nm的光學顯微系統對滴頭流道結構尺寸進行了測量,分析結果顯示流道尺寸精度完全滿足滴頭的製作要求。The structures and dynamic changes of the artifical sand - fixing vegetation were studied based on the follow views : components of vegetation community, plant diversity, life - forms of vegetation, trends of plant growth, characteristics of the vertical and horizontal structure of vegetation, relationship between the vegetation community and environment ( including soil moisture temperature etc. ), relationship between the vegetation community and characteristics of plant physiological activities. some results were showed as follow : 1. components, diversity and life style of artificial vegetation in shapotou region the marked changes of artificial vegetation have taken place during more than 40 years, since the establishment of sand - fixing vegetation
本文以騰格里沙漠東南緣寧夏中衛縣沙坡頭地區人工固沙植被作為研究對象,採用傳統生態學的野外調查方法,從植被群落的組成、多樣性、生活型、群落生長動態、垂直結構特徵、水平結構特徵、群落結構與周圍環境(土壤含水量、溫度)相互關系及其與植物自身生理生態適應特徵關系等多個角度研究了人工植被群落的結構及其動態變化,取得了如下研究結果: 1 、植被群落組成、多樣性及生活型:沙坡頭地區人工植被經過近50年的演變,從流動沙丘到固定沙地,沙地植被的動態變化經歷了從人工植被到人工?自然植被的轉變,從人工植被建立初期的少數幾種引種植物到現有30多種植物,隨著固定沙地時間的延長,植物種類日趨豐富,並且人工植被在15 25年、 40 50年兩個階段,物種的周轉速率最大,即群落結構變化最大。The planeness and integrality of the flier - plate were ensured effectively by exerting restrictive pressure, controlling heating and cooling rate, lowering welding temperature or reducing welding time as much as possible, etc. theoretical model of creating quasi - isentropic compression via 93w - ofc - tc4 - a1 - mb2 system flier - plate with graded wave impedance was established, and numerical simulation of the impact process was then carried out
採取施加外部機械力、控制升降溫速率以及盡量降低焊接溫度或減少焊接時間(防止脆性金屬間化合物的過度增長)等措施,確保了焊接接頭的平整性和界面結構的完整性。建立起梯度飛片擊靶的理論模型,對93w - ofc - tc _ 4 - al - mb _ 2系波阻抗梯度飛片的擊靶過程進行了數值模擬計算。In view of the contradiction between the rapid increase in the number of domestic cars and the limited transport facilities, it is necessary to realize the hud ’ s popularization
考慮到國內汽車絕對數量的迅速增加和交通設施有限之間的矛盾,有必要使車用抬頭顯示系統得到普及。The vehicle head - up display system ( hud ) will provide drivers with some critical data when driving, such as fuel amount, speed, mileage that has been traveled and so on, which enhance the driving comfort and ensure the safety of the drivers and passengers
車用抬頭顯示系統( hud , headupdispaly ) ,可以在汽車行駛過程中為駕駛員提供汽車的關鍵數據,比如油量、車速、已行駛里程等,從而提高了駕車的舒適度,保障了駕駛員和乘客的安全。The result shows that the new control system has convenient parameter modification, perfect controlling flexibility, rapid dynamic response speed, stable welding procedure ; the das of welding parameters has strong ability of anti - disturbance and the data is reliable. the control effect and practicability of the diagnosis system judging the welding quality are both good by using the characteristic values of welding process such as the percentage of the flashing time. gray - spots flaw in flash welding joints of rail is the least when the pole moves to and fro at the same velocity and the speed is slow
結果表明:新型控制系統參數設置修改方便,控制柔性好,動態響應速度快,焊接過程穩定;焊接參數採集系統抗干擾能力強、數據可靠;以閃光時間百分比等焊接過程特徵量為判據診斷焊接質量效果好,實用性強;當動立柱的前進、後退速度相同且為低速時,鋼軌接頭中灰斑缺陷數量最少。The system accomplishes ultrasonic pulse transmitting and receiving, signal amplitude adaptive adjusting, data acquiring, echo searching, data processing and analyzing. different algorithms for echo searching, filtering and time difference measuring are proposed based on the thorough analysis of ultrasonic echo signal
研製的超聲波液壓測量系統由超聲波探頭、超聲波收發系統、高速數據採集系統和計算機構成,實現了超聲波信號的發射、接收、自動增益控制、數據採集、自動搜索回波、數據處理、分析等功能。By test data, variation of water head damage in filter lager and quantify of intercept filth in filter lager, filter cycle, analyse research of filter relation and data count by computer. i reach a mathematics relation among related coefficients
通過實驗數據,對濾層水頭損失的變化,濾層截污量,截污濾層阻力增長及過濾周期、濾速關系進行了分析研究,並利用計算機進行了數據統計,得出相關參數之間的數學關系。When the punched baffle is proper in length, the small holes are in staggered arrangement and the punched ratio gradually increases from the central axis to the boundary along the baffle length, the performance of flow distribution in the plate - fin heat exchanger is effectively improved by the optimum design of header configuration
從實驗對比分析中得出,當擋板小孔呈錯排分佈、開孔率沿擋板的中軸線向兩側逐漸增加、且總開孔率達到50 %左右的時候,在相同的入口條件下,不均勻系數由原始封頭的1 . 210降至0 . 209 ,最大流速與最小流速之比由23 . 163降至1 . 756 。Socket function mainly realizes setting up and initializing service unit socket, initializing service unit and service unit serial and so on. bind funcion primarily binds local address and port for the socket. listen function is to evaluate the max length of server ’ s listening queue. connect function and accept function set aside rate ahead, infrom user ’ s request of establishing virtual circuit to suna, cooperate with suna to establish the connection between client and server, return the result. we make use of three handshake with data protocol and virtual circuit mode, in this way, when we translate data, we can look up communication course according to virtual circuit number, at the same time, there aren ’ t source ip address and port, end ip address and port in the head of data package, the speed of translating data advances in a certain extent. send function and recv function is to send data collaborating with suna, and copy data from the receiving queue of socket to user ’ s buffer. close function cooperate
Socket ( )函數實現創建、初始化服務元套接字,初始化服務元及服務元序列等。 bind ( )函數為套接字綁定本地地址和埠號。 connect ( )和accept ( )函數主要是根據用戶要求預留帶寬,將用戶的建立虛電路請求轉達給服務元網路體系,協作服務元網路體系採用捎帶數據的三次握手協議建立虛電路,並告訴用戶處理結果,一方面,捎帶數據的三次握手協議在一定程度上可提高數據傳輸速度;另一方面,採用虛電路方式,使得數據通信可直接根據虛電路號查找相應的通信進程,而且數據包的包頭中省去了源ip地址、埠號和目的ip地址、埠號,提高了數據傳輸速率。But the traditional static design method is based on statics and seldom contains guidelines for incorporating the dynamic behavior of the moving belt. large safety factors are employed to accommodate most dynamic stresses in the belt. this can not only increase total cost but also give rise to system instability and higher dynamic stresses that can damage the belt, drums, idlers, bearings and other parts of the conveyor
在高速情況下,帶式輸送機存在的主要問題之一是起制動過程中輸送帶的動張力問題,而傳統的靜態設計方法將輸送帶視作剛體,並且在靜力學基礎上按靜止或勻速運行狀態對輸送機系統進行受力分析和參數設計,將動張力以一定系數計入,用加大安全系數方法提高設計可靠性,這不僅會使帶式輸送機的成本提高,還可能引發起制動過程中較大的輸送帶動應力及運行過程中的不穩定性,從而導致輸送帶接頭的失效及滾筒、托輥、軸承乃至其它部件的損壞。So by this method, we can test the water content of the raw cement slurry through testing the velocity of the detector, it is certainly that it can test other slurry, such as paper slurry, mud slurry, mine slurry ctc. the fluid mechanics charactoristic of the slurry is complex, therefore it is difficult to establish the two - dimension or three - dimension mathematical modle to decide the relationship between the water content and the revolving speed of the detector. so the research for rotational detector in this topic is through the method of proper regressive analysis of experimental datas to establish the relation among the water content, the palse and the voltage
料漿的流體力學性能是復雜的,要想通過建立二維或三維的仿錐形旋轉式檢測頭在料漿中旋轉的流體力學數學模型,來確定料漿水分含量與檢測頭的轉速關系是十分困難的,甚至是不可能的,因此本課題對于旋轉式檢測頭的研究,是通過對實驗數據進行多元線性回歸的處理方法,建立起水分含量與紅外線對管輸出的脈沖數p及電源電壓之間的關系。分享友人