設計失速速度 的英文怎麼說
中文拼音 [shèjìshīsùsùdù]
設計失速速度
英文
design stalling speed- 設 : Ⅰ動詞1 (設立; 布置) set up; establish; found 2 (籌劃) work out : 設計陷害 plot a frame up; fr...
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 設計 : devise; project; plan; design; excogitation; layout; layout work; styling
- 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. (快慢的程度) speed; rate; pace; tempo
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First, it is compressible and cushiony ; second, it can be transported to a long distance with a little power loss ; the last, its flux and velocity of flow are quite high, so the reaction time of the operators can been considerably shortened. aiming to solve the problems of vibrating machinery such as short life - span, poor cushion and high energy consumption, the writer, on the basis of characteristic of pneumatic mentioned, contrives a set of valve controlled pneumatic vibrator, which has larger output vibrating force and longer life - span with simple structure. then, it is applied to drive a vibrating screen and the result is fairly well
文中針對氣動技術本身的特性及優點,如:可壓縮,具有緩沖性;能耗損失小,便於遠距離輸送;流量大、流速高,執行元件響應速度快等,以解決振動機械在應用過程中的緩沖、能耗以及使用壽命等問題為目的,設計出一套輸出激振力大、結構簡單、使用可靠的閥控氣動激振器,並將其成功地運用到振動篩上,取得了較好的效果。The cross section area of the internal sprue of the die casting dies designed should be of proper value, and matches perfectly the fill speed, the fill time and injection pressure in case that the die casting dies fail in the design
設計壓鑄模時應當確定恰當的內澆道截面積,並使之與充填速度、充填時間和壓射比壓保持較好的匹配,以防止壓鑄模設計的失敗。Rapid prototyping technology changed the traditional pattern of product design, which could offer product sample for the designer, reduced design cycle and quicken the schedule of new product design, and it gave the decision - makers visual feeling. ; rp technology provided kinds of molds including resin - boncled mold laminate mold, investment mold and lost foam casting mold and so on for sand casting investment casting and cavityless casting, it could also use direct shell production casting to make pattern dies metal dies die - casting dies injection dies directly, and it could even produce casting products in small scales. the applications of fdm technology in plaster precision casting and the rapid casting technology based on sls technology were introduced, the organic combination between rapid prototyping tecnnology and foundry process, which initiated a new period of rapid manufacturing metal parts, by using advanced new technology alternated traditional foundry industry to make it looked brand - new, thus, the competition of foundry industry would be improved ; rapid prototyping technology offered a rapid economical feasible technical method, common processes of using rapid prototyping technology to produce dies were discussed, in the paper it explored that. the problem of combining rapid prototyping technology with electric arc metal - spraying technology to make metal dies and technics in dies manufacturing of combining rapid prototyping technology with precision casting, rapid tooling based on rapid prototyping, integrated advanced new technology and tradition technology of rapid prototyping manufacture, each superiority were exerted, rapid prototyping technology had been an efficiency measure to rapid update products and develop new product, and to middle -
快速成型技術改變了傳統的產品開發模式,可以為設計者提供產品樣件,縮短設計周期,加快新產品的開發進度,為決策者提供直觀性;快速成型技術迅速提供砂型鑄造、熔模鑄造、實型鑄造用的各種模樣,包括樹脂模、層壓模、熔模和消失模等,還可採用直接制殼鑄造法直接製造熔模鑄造用的壓型、金屬型、壓鑄型、注塑模,甚至直接製造小批量鑄件,介紹了熔積成型技術在石膏型精密鑄造上的應用和基於選擇性激光燒結技術的快速鑄造技術,快速成型技術與鑄造工藝的有機結合,開創了快速製造金屬零件的新階段,對用高新技術改造傳統的鑄造工業,使其面貌煥然一新,增強鑄造行業的競爭能力;快速成型技術為母模的製造提供了一條快速、經濟、可行的技術途徑,討論了利用快速成型技術製造模具的一般工藝方法,探討了將快速成型技術與金屬電弧噴鍍技術結合起來快速製造金屬模具問題,以及快速成型技術與精密鑄造技術相結合的模具製造工藝,基於快速成型製造的快速模具技術,集成了快速成型製造高新技術和傳統技術,發揮各自優勢,已成為產品快速更新換代和新產品開發及中、小批量生產的有效手段之一。The speed of isa bus has become the bottleneck between high a / d converters where requests very high speed. isa bus interface card ca n ' t configure resource automatically. there will be no place for isa bus after the vanish of isa slots on computer mainboard
Isa總線有很多優點,但在某些方面已逐漸顯出不足:在一些速度要求高的場合, isa總線的速度上限已成為高速a / d轉換器與主機間的瓶頸; isa總線介面卡無法實現資源的自動配置;以及計算機主板的isa插槽在逐漸的消失,所以本文又提出設計基於pci總線的介面電路。In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation
針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象,考慮滲流與傳熱的相互作用,採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明,高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域,增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降,熱滲透深度擴大,熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域,孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用In order to search after its applying to expressway roadbed improvement, this paper studied consolidation characteristic and distortion law hi soft soil under positive and negative action, introducing parse explain and numerical calculation theory. additionally, based on locale experimentation, the design and construction method of vhlcp was implemented and its reinforce effect and economical character was estimated. testing indicated that the groundwork ' s intensity have increased 97 %, silt soil have vanished and outlay have saved 39 %
根據現場試驗,確定了適合於高速公路工程要求的真空堆載聯合預壓的設計和施工方法,並分析評價了其加固效果和經濟性,試驗表明:應用真空堆載聯合預壓后,地基強度平均提高了97 ,地基中淤泥質土已消失;與粉噴樁加固地基相比,節省經費39 。After simulating the model of water hydraulic valves, the velocity distribution, pressure distribution, energy distribution can be obtained and relations between the valve channel and the energy loss, the negative pressure distribution can be analyzed, which offers the theory foundation for designing water hydraulic valves with the high efficiency, low energy loss and low noise
通過對水壓閥模型的cfd穩態和瞬態解析,可以得到水壓閥內流場的速度分佈、壓力分佈及能量分佈,據此定性分析流道結構(速度、壓力、流動的分離與再附壁,旋渦的產生與消失等)與能量損失、負壓分佈等的關系,從而為設計出高效率、低能耗、低噪聲的水壓閥提供理論依據。In direct torque control system, speed sensors are usually used to survey the speed of motor, but speed sensors have many disadvantages, such as inconvenient fixing and maintenance, inaccurate precision. at present it is an efficient and feasible method to estimate speed by using software instead of hardware
以往在直接轉矩控制系統中採用速度傳感器檢測速度信號,由於測速裝置具有安裝不便、維修困難、測量精度差等缺點,因而採用軟體代替硬體檢測設備辨識速度,即進行無速度傳感器的設計,不失為一種有效可行的速度辨識方法。Tooth surface temperature and thermal equilibrium conditions have significant effects on gear performance and failure as well as lubrication system in high - speed gear transmissions for aerospace applications
高速重載齒輪傳動系統的熱平衡狀態以及輪齒表面溫度的大小對齒輪傳動的性能與失效以及齒輪潤滑系統的設計與操作控制等有著重要的影響。In order to overcome the disadvantage of 2bps - 2 plastic film mulch seeder with watering apparatus that the operation speed is limited and the moisture evaporation loss is great, according to the theoretic analysis of water movement in soil, this paper offers another watering project - hidden watering under film, designs three different types of watering devices, meanwhile conducts test research with different watering devices in different position the change of the soil moisture content
本課題針對2bps - 2型坐水鋪膜播種機坐水后,土壤水分蒸發損失大和機組作業速度低的突出問題,通過對水在土壤中運動的理論分析,提出了在行間膜下的暗道式施水方案,圍繞此方案設計了三種坐水部件,並就不同坐水部件在不同施水位置施水后,種子帶土壤含水量的變化進行了試驗研究。4. through using the concept of logic balance, a high performance telecommunication switch network test chip is accomplished by using xilinx virtex 300e - 6 and the working clock frequency is up to 125mhz. this chip can give an exact test for the network delay time, throughput, network delay time dither, rate of errors and lost data
4 )結合邏輯平衡的思想,採用xilinxvirtex300e - 6器件,為一家著名的通訊技術有限公司設計了速度達125mhz的交換網測試晶元,能夠對交換網的吞吐率,網路延時,網路延時抖動,數據包錯誤率,包丟失率等進行嚴格的測試,並根據當前網路的流量大小自動調節網路負載。Taking some tubular air pre - heater used in one boiler whose capacity is 130 t / h as an example, new blue print with inner trachea is completed by means of computer program. several key design variables may be changed, such as diameter of pipe and velocity of flow of gas. these cases have been considered, and their results have also been compared with each other
比較了幾個重要的設計變量,如外管徑、煙氣流速等參數變化時,總傳熱系數和空預器本體管子總重量,阻力損失以及最低管壁溫度等幾個重要設計結果的變化趨勢,對內螺紋管空氣預熱器的設計具有借鑒意義;其間還分析了內螺紋管與光管在設計時的不同之處;最後,初步分析了內螺紋管的優化設計問題,提出了一些建議。A series of nickel - chromium - copper cast - irons with varied rare earth were designed and theirs microstructures were observed by optical election microscope , the corrosion rates of re - ni - cr - cu alloy cast irons in static 、 room ? temperature and strong alkali liquor were measured by the hydrometer method
設計了含不同量的稀土鎳-鉻-銅合金鑄鐵,採用光學顯微鏡觀察組織,用失重法測定合金鑄鐵在靜態、室溫、高濃度堿液中的腐蝕速率。In theory, the thesis constructs a new idea on effective preventing and controlling htds. in method, firstly to prevent the occurring of each disaster, it designs a set of forewarning indices to efficiently monitor and distinguish the most representative ones from all disaster causers, which is through inducing a new forewarning management method into existing highway operating system. secondly if the disaster has inevitably occurred, the forewarning system will start its emergency countermeasures to lessen the loss degree to the minim
在方法上,一是採用了社會實證調查方法,了解了高速公路交通災害和高速公路運營管理的現狀和問題,二是通過對高速公路交通災害的各類預警指標的設計和運用,實現對各種致災因子的有效監測與識別,以預防交通災害的發生,並在災害已不可避免發生的情況下,採取緊急措施將災害的損失程度降到最小。The calculated results of cold nozzle flow are in agreement with some cold test one. through calculation, the parameter distributions of regulated nozzle flows were obtained. they state that the design of the regulated nozzle is reasonable, and its velocity loss at discharge section is less than 2. 3 % comparison with no regulated nozzle
3 、計算結果與已有的試驗結果對比相符,計算獲得了可調噴管的流場參數分佈,表明可調噴管的設計合理,與不可調噴管相比,流動的出口平均速度損失小於2 . 3 。The controller for longitudinal short period model of aircraft has been designed and simulated by using those schemes. simulation results are demonstrated to show that the scheme is not only simpleness and easy accomplish, but also enhance the performance of flight and the effectiveness and applicability of the proposed method
模擬結果表明,用此方法,不但使設計過程簡單且易於實現,而且用該方法設計出控制器可以有效地改進飛機的飛行性能,提高失速迎角,加快起恢復速度,閉環跟蹤效果也令人滿意。分享友人