超載實驗 的英文怎麼說
中文拼音 [chāozǎishíyàn]
超載實驗
英文
overloading experiment- 超 : Ⅰ動詞1 (越過; 高出) exceed; surpass; overtake 2 (在某個范圍以外; 不受限制) transcend; go beyo...
- 載 : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
- 實 : Ⅰ形容詞1 (內部完全填滿 沒有空隙) solid 2 (真實; 實在) true; real; honest Ⅱ名詞1 (實際; 事實...
- 驗 : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
- 超載 : overload; excess freight; supercharge load(ing); overloading; superload
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Abstract : experiments were made on a ultrasonic machining tool with work - piece adhered to ultrasonic transducer head, to machine micro - holes on hard and brittle materials such as soda glass and si, to study the effects of tool materials , work - piece materials , amplitude , machining load , slurry concentration , tool length and the size of work - piece on machining rate and wear ratio. in this experiment, the micro - tool was made through wedg
文摘:通過以wedg放電加工手段製作微細超聲加工用工具,在採用工件加振方式的微細超聲加工機上對碳酸玻璃、半導體硅等硬脆材料試件進行微孔加工的實驗,來探討在某一特定加工條件下工具材料、工件材料、工件的振幅、加工靜載荷、磨料懸浮液濃度、工具長度及工件尺寸等重要因素對加工速度、工具損耗率的影響,為微細超聲加工技術的實用化提供參考依據。This paper related to a practical project that a high school is big bay building with teaching, experiment and studying, aim at the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), and the building loading much ( the building " self - weight is over the 9. 0 kn / m2 ). compared to r. c. rectangle columns, studying the aseismic performance of the r. c. special - shaped columns pure frame structure, the r. c. special - shaped columns frame - truss structure and the r. c. special - shaped columns frame - shear wall structure
本文,結合某中學大開間教學實驗綜合樓的具體工程,就抗震設防烈度較高地區( 8度)和抗震不利的建築場地(類場地) ,並且建築物所受荷載較大的情況(建築物自重超過9 . 0kn m ~ 2 ) ,通過與矩形柱分析比較的方式,研究了異型柱純框架結構、異型柱框架-桁架結構,以及異型柱框架-剪力墻結構的抗震性能。1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %
從功率單向流動角度出發,提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲,在調制系數0 . 1 m 0 . 5情況下,控制移相角按正弦規律變化,使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號,經過整流、濾波、低頻逆變,從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載,移相全橋具有超前橋臂零電壓開通,滯后橋臂或者零電壓開通( _ 0 )或者零電流關斷( _ 0 )的軟開關特性,而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。Through analyzing the in - situ data such as total settlement, layered settlement and pore water pressure, the actual deformation behavior of soft foundation are mastered. after summarizing the methods of predicting settlement of soft foundation and bring forward a method to predict the post construction settlement of the surcharge preloading soft foundation. and the engineering application of the predicting foundation settlement based on “ law of massaction ” and the traditional predicting methods are compared, the results shows that the model is useable and it deserves more validation in more projects
本文以深圳灣軟基處理工程試驗區為背景,通過對淺層沉降、分層沉降、孔隙水壓力等資料的分析,掌握了軟基變形的實際性狀;在總結軟基路堤沉降預測方法的基礎上,探討了軟基超載預壓工后沉降預測的參數反演法;並對地基沉降預測的「質量作用定律」模型的工程應用與傳統的預測方法進行了對比,驗證這種方法是可行的,得出了一些有用的結論。It is validated that the design of induction machine vvvf control system has its rationality and feasibility. the distinct reduction of switching loss shows the efficiency of the three optimal switching patterns initiated. the research of this paper lays a solid foundation for the research of the high - speed motor control system to be continued
空載和負載實驗表明文中所提出的感應電機調速方案的正確性和實用性,以及三種優化svpwm開關模式在減少開關損耗等方面的有效性,為后續的高速、超高速電機控制打下了理論和實驗基礎。Hot - carrier induced oxide breakdown shows different characteristics compared with that induced by conventional fn stress
與通常的fn應力實驗相比較,熱載流子導致的超薄柵氧化層擊穿顯示了不同的擊穿特性。After designing oil ditches on the surface of its arc - block, increase friction factor and make sure self - lock which solves above problem. do qualitative analysis to lower pair and one - way overrunning clutch and inner star - wheel - roller overrunning clutch by using self - made lever loader. the experiment shows : on the same condition, the deformation of new overrunning clutch ’ s surface contact with lower pair is smaller than the deformation of roller overrunning clutch ’ s line contact with higher pair and new overrunning clutch ’ s skid angle is smaller
對低副單向超越離合器的部件進行了加工製造,在超越離合器弧塊表面創新設計加工排油溝,增大摩擦系數,保證實現自鎖,解決了很多離合器工作過程中容易出現無法自鎖的問題;對低副單向超越離合器和內星輪滾柱超越離合器用自製杠桿加載器做了定性分析,實驗表明:相同條件下,新型離合器低副面接觸比滾柱離合器高副線接觸變形小、溜滑角小。The experiment results from practical multispectral images have shown that this algorithm is efficient. if the original image is reconstructed by five eigen subimages, the nearlossless compression ratio is above 11 for the data used in this paper and the psnr is more than 45db
實驗結果表明,對機載64波段多光譜遙感圖像進行k - l變換和整數小波變換后,選用五個本徵子圖像重建原圖像,壓縮比可以達到11以上,峰值信噪比則超過45db ,取得了其它方法無法獲得的效果。Gu zhi - fu, sun tian - feng, chen qiang. interference of wind loading between two neighboring cooling towers j. acta aerodynamica sinica, 1992, 10 ( 4 ) : 519524
張彬乾,李建英,閻文成.超大型雙曲冷卻塔雙塔干擾的風荷載特性研究j .流體力學實驗與測量, 2003 , 17 : 9397Finally, two examples show that, the availability and practicability of the new model is verified. the analysis of calculation result of berthiervill test embackment shows different part of compression curve have different influence upon the course of consolidation, and correct coefficient and viscous effect have great significance on deformation forecast. associated with the wenzhou airport runway engineering, the reason of increasing of pore - water pressuer in under - lying soft layer and post - construction settlement are given
最後,通過兩個工程實例的分析來說明本文模型的有效性和實用性:一是對berthiervill填土試驗場的軟基實測數據和理論成果進行對比分析,闡明考慮結構性擾動和粘滯性效應對分析天然粘土固結壓縮性的重要性;二是對溫州機場袋裝砂井超載預壓工程進行數值模擬,指出停荷預壓期間下臥層孔壓增加和工后沉降大的原因。According to our experimental investigations of varying load amplitude, it was found that the phenomena of fatigue crack growth retardation occurred for pmma material following a high overload cycle exerted among the regular constant amplitude load cycles, the ratio of peak value of overload to that of the regular cycles should be over at least 1. 35 to make the retardation taking effect. the experiment scheme for measuring the shutting - off ratio of overload ( defined as the overload ratio when da / dn < 10 - 7 / cyc. )
本文試驗分析了變幅載荷對裂紋擴展的影響,證實了有機玻璃也存在超載遲滯現象,通過金相觀察分析,提出超載遲滯的過程實際上是裂紋前緣萌生新的裂紋的過程的觀點,同時提出超載遲滯的合理的解析,並且給出超載遲滯比,為隨機載荷下疲勞擴展模型的建立提供了一個重要的參數。In addition, the characteristics of critical current of hts tapes in ac applied field and that of voltage - current curve when transport ac currents were studied. the problem on the criterion of ac current carrying capacity of hts tape was discussed, and some suggestion on the criterion of ac current carrying capacity were proposed
另外,對高溫超導帶材在交流背景磁場下的直流臨界電流特性,及超導體傳輸交流時的流?壓曲線特性進行了實驗研究,並對高溫超導帶材的交流最大載流能力的測量判據問題進行了探討,給出最大交流載流電流測量判據的建議。The results were as followed : pollen germination and tube growth were decreased in ga mutant, and increased in ga overexpression strains as compared to wild type, while pollen germination and tube growth were not affected in gp mutant
結果表明:體外實驗中gpa1突變體花粉的萌發率及花粉管生長速率均低於野生型花粉,而超表達g花粉的萌發率及花粉管生長速率則高於野生型及空載體對照; g突變體agb1 - 1與野生型花粉的萌發率及花粉管生長速率差異不大。It was also found that the average number of germinated pollen grains on each stigma of ga mutant was less than that of wild type, while in ga overexpression strains the average number was more than that of control ( wild type and empty vector control )
體內實驗中, gpa1突變體柱頭上實際萌發的花粉粒數少於野生型,超表達植株則多於野生型和空載體對照; agb1 - 1突變體柱頭上實際萌發的花粉粒數與對照比較差異不顯著。This can be of significant benefit to cut down the cost and time limit for a project the program package gone with this paper may realizes the dynamic simulation for all of courses in hoisting, and may synchronously displays the axis force of derrick, the pull - force of the steel wire, obliquity of equipment and overloading instance
這有利於工程實踐中方案變更、施工現場條件復雜多變等的方案驗算,節約成本和縮短工期。本論文程序為桅桿吊裝整個過程實現了動態模擬,顯示桅桿軸向壓力、鋼絲繩拉力、設備傾角和起重超載提示,為安全吊裝設備提供重要的數據,有利於作業過程的全程監控。It is a bench - top preparative hplc solution on helping laboratories purifies compounds for clinical trials prior to full - scale production
高產率放大系統可以藉由非線性超載,將制備能力放到最大;它是一桌上型高壓制備層析設備,主要協助實驗室純化臨床試驗或是生產所需的成分。Based on the theory mode, the delay time between the beginning of optical illumination and the onset of lock - on switching was calculated, and the transiting speed of electrons, the traversing velocity of the current filament, was obtained as well. the calculated results matched well the experimental results. taking advantage of the ultra - fast response characteristics of the devices, si - gaas pcss ' s are successfully applied to the broadening test of nanosecond laser pulses
應用單極電荷疇模型數值計算了lock - on效應的光、電時間延遲和載流子的渡西安理工大學碩士學位論文越速度(絲狀電流穿越開關間隙的速度) ,所得計算結果與實驗測試結果基本吻a利川半絕緣gaas光屯導開關的超快光l匕11向應燈性,成功地應川下納秒激光脈沖展寬試驗中,證明了開關可廠泛應川在超快光電響應和光電反饋網路中。It is importance of the experiment about measuring principal stress combined bending with torsion in mechanics of materials. this paper points out shortcomings in the traditional experimental devices combined bending with torsion and establishes theory and principles for designing superminiaturizational experimental device combined bending with torsion through analyses of stress and strain state at the measured point a ( b ). it also designs the superminiaturizational experimental device, which has smaller space and more precision and has more reasonable structure measurements in this paper
彎扭組合主應力測定實驗在材料力學實驗中佔有重要的地位,作者指出了老式彎扭組合實驗設備的缺點,通過對所測點a ( b )處應力應變狀態分析,確立了設計超小型化彎扭組合實驗裝置的理論基礎、設計原則,設計出了體積小,加載簡單,結構尺寸合理,精度高的超小型化彎扭組合實驗裝置。This paper, regarding the asphalt pavement in the zhoukou region as the study object, according to the prevalent norms ( specifications for design of highway asphalt pavement ), with the beginning of the pavement performance and the transportation investigation, totally and systematically analyzes the traffic parameters and the destroying reason of pavement at the early stage in the point of fatigue property and limit strength, gives the concepts and methods of the growth rate of equivalent axle load action time, seasonal modification factor and overload factor, proposes the method of axle load conversion on the condition of heavy loading. on this basis, it proposes the design method adapting to asphalt pavement construction, explains the steps of thickness computation of construction with the combination of engineering example, finally verifies thedesign method in the paper by test road. theory and practice both prove that the reasonability of pavement structure style and the reliability of design method in the paper can adapt to the present heavy loading and overloading traffic conditions, have highly theoretical and practical value
本文以周口地區瀝青路面為研究對象,以現行《公路瀝青路面設計規范》為依據,從路面使用性能和交通特徵的調查入手,從疲勞特性和極限強度出發分析了路面早期破損的原因,全面系統地進行了交通參數的分析,提出了當量軸次增長率、季節修正系數和超載系數的概念和方法,並提出了重載交通的軸載換算方法。在此基礎上,針對超載、重載交通從結構組合設計、結構厚度計算(包括疲勞強度標準和極限強度標準)等方面提出了適宜的瀝青路面結構設計方法,並結合工程實測,說明了結構層厚度計算的具體步驟,最後通過試驗路驗證本文提出的設計方法。理論與實踐均表明,本文提出的路面結構型式合理、設計方法可靠,能適應目前重載、超載交通的狀況,具有較高理論與實用價值。This dissertation aims at the problem of the noise of over length truck falling short of the lately country standard, and makes research on the reason of the gear - box vibrating noise. by combine using finite element analysis and experimental analysis method, the dissertation directly researches the vibrating noise of the gear - box, and takes some availability measures to control vibrating noise from the box surface. by improving the box to reduce its noise, and validate the effect
本文針對一汽超長載重汽車噪聲指標不符合國家最新標準的實際問題,對其變速箱振動噪聲的產生機理進行深入研究,應用有限元分析與實驗分析相結合的方法直接對其進行振動和噪聲分析,在此基礎上提出控制其振動噪聲的有效措施,並通過對其箱體的改進設計,最終達到減振降噪的目的。分享友人