超載特性 的英文怎麼說
中文拼音 [chāozǎitèxìng]
超載特性
英文
overload characteristics- 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 ...
- 特 : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 超載 : overload; excess freight; supercharge load(ing); overloading; superload
- 特性 : characteristic(s); character; performance; features; properties; behaviour; response; character...
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Then, by using the great fem programme and the drucker - prager model, the thesis establishes the pile - soil model of super - long piles, analyzes the mechanism of bearing and deformation of super - long piles under vertical loading systemically, studies the characteristics of q - s curve, bottom resistance, pile shaft resistance and critical length of super - long piles in detail, acquires some practical guidance conclusion. secondly, with a practical engineering, the author expatiates the bearing characters of super - long piles farther. the thesis points that super - long piles are frictional piles under the condition of working loading
然後應用大型有限元程序,採用土的drucker - prazer模型,建立了超長樁分析計算的樁土模型,系統分析了超長樁在豎向荷載作用下的承載機理和變形特性,研究了超長樁的荷載?沉降特性,端阻、側阻的發揮性狀以及超長樁的有效樁長,得出了具有實際指導意義的結論。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Because of its special antenna structure, testing the antenna ’ s performance is necessary to prove its theory. auto measurement system of cfa array annates can measure the annates ’ s amplitude - phase character and resistance matrix quickly and effectively
艦載超視距雷達使用交叉場天線cfa ( crossedfieldantenna )作為陣列天線陣元,由於其特殊的天線結構,對其特性的理論研究也需要測量數據來驗證。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。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。A brief introduction of synthetic aperture radar ( sar ) and the application of sar image data in the research of crest length distribution is introduced. the method to compute the action of random waves with different crest lengths on vlfs. is also reviewed
對星載合成孔徑雷達及其在波峰長度統計特性研究中的應用以及不同波峰長度海浪對超大型海上結構物的作用作了一個簡單的介紹,闡明了下一步的研究工作的思路。With the reference of many relevant materials, the author prepared a fined molybdenum disulfide powder with a average size of 800nm by ball milling, and a nano - copper with average size of 30nm in micromulsion solution method, and synthesized surface - modified titanium dioxide nanoparticles with average size of 40nm in organic media via sol - gel method. the tribological performances of three particles were studied by universal test as well, with the result of fined molybdenum disulfide powder with good reducing wear and antiwear performance at low load, nano - copper with good reducing wear and antiwear performance at high load, surface - modified titanium dioxide nanoparticles maintaining stable reducing wear and antiwear performance from low load to high load due to its characteristics of organic and inorganic nanocomposite. the results indicate that the nanocomposite is the most perspective oil additive. the reducing wear and antiwear mechanism of nano oil additive was studied with in - situ tribochemical principle. nano additives possess broadly developing prospect with its above - mentioned performance
在參閱了大量文獻的基礎上,分別採用了球磨法、微乳液法、溶膠?凝膠法制備了超細二硫化鉬、納米銅粒子、表面修飾納米二氧化鈦,經原子力顯微鏡測試,獲得的超細二硫化鉬的粒度平均在800nm以內,納米銅粒子平均粒度約為30nm ,表面修飾納米二氧化鈦平均粒度約為40nm ,在萬能摩擦磨損試驗機上測試了三種粒子的摩擦學特性,結果表明:在合理的添加濃度范圍內,超細二硫化鉬在低載時具有優良的減摩抗磨性能,納米銅在高載時具有比較好的減摩抗磨性能,表面修飾二氧化鈦粒子因具有有機與無機復合物的特性,從低載到高載都保持穩定的減摩抗磨性能。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 : 9397Based on the known theoretical research at home and abroad, common theories of earth pressure and their adaptabilities are discussed in this paper, and emphases are put on the methods of earth pressure calculation and checking of strength and stability for retaining walls with balancing platform, especially under the condition of cohesive filling soil and over loading
本文基於國內外擋土墻土壓力理論研究現狀,對常用土壓力理論及其適應性等進行了論述,重點分析與探討了衡重式擋土墻的土壓力計算方法,特別是對其上、下墻背、墻后填土為粘性土及存在超載等情況下的土壓力計算、墻身強度與穩定驗算方法等進行了研究。Then, as the substitute of the traditional pi controller, neuron adaptive psd controller is used to alternate the velocity loop of dc driver system, simulation results show that the super - shoot in new system is small and the performance in the way of anti - disturbance and anti - time - varying parameters are higher than the traditional pi controller and robustness of the dc driver system improved greatly, in addition, through analysis of the character of the neuron adaptive psd controller, the paper presents a neural network self - tuning control method for dc driver system in which the diagonal recurrent neural network is used to identify the plant to calculate the plant ' s sensitivity for psd controllers simulation results indicate that excellent static dynamic target was got with this control method and the performance of the system is improved greatly,
然後,應用單神經元自適應psd控制器改造調速系統的轉速環,代替傳統pi調節方式的轉速控制器。模擬表明,新系統在超調、抗負載擾動和參數時變方面性能優于的傳統的pi控制方式,系統的魯棒性增強。在分析單神經元自適應psd控制器特性后,本文提出用對角遞歸神經網路辯識控制對象,為psd控制器提供靈敏度參數,從而構成一神經網路自校正控制方案。The main purpose of this paper is to realize the section properties and moment capacities of profiled sheets by experimental study and academic analysis for three types of profiled metal sheets which are called u450, u860and super combination profiled metal sheets produced by shanghai baosteel metallurgical construction corporation. its main contents include : ( l ) according to " european recommendations for the testing of profiled metal sheets ", the moment capacities of 32 full - size u450 and u860simple and continuous specimens are tested. ( 2 ) using the finite element program ansys and nonlinear finite element method, the moment capacities of super combination profiled metal sheets profiled are analyzed
主要內容有: ( 1 )依據《金屬壓型鋼板試驗歐洲建議》 ,進行了32塊1 : 1的u450 、 u860二類壓型鋼板試件簡支、連續板彎曲性能試驗研究; ( 2 )採用有限元程序ansys對超級組合壓型鋼板受彎性能進行了非線性有限元分析,分析中考慮了大變形與幾何初缺陷,得出其荷載?撓度曲線與極限荷載p _ ( max ) ,通過截面特性與曲線斜率、極限荷載的關系式得到截面特性;並將分析結果與同濟大學試驗結果進行對比分析。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。Load characteristics of high power sandwich piezoelectric ultrasonic transducers
夾心式功率超聲壓電換能器負載特性研究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。Cour and silting characteristics of debris flows - because of resistance decrease due to supernormal pore water pressure, intermittent debris flows can be accelerated on mild slope in the superimposable processes of several debris flows
?泥石流的沖淤變化特性?泥石流多陣迭加過程中出現超載孔隙水壓力使龍頭阻力降低,在緩坡上能夠加速運動,說明泥石流龍頭迭加具有加速效應。First, aiming at the condition of typical heavy - duty traffic road in the whole nation especially in jiaozuo, it carries out careful investigation and relatively systematic research for the destroyed road caused by heavy - duty traffic. hds - 2 movable axle is also used to make an experiment on the actual overloaded condition of existing road. for and pitch road surface of heavy duty, it conducts nonlinear experiment of half rigid material and heavy - duty ruts of pitch road surface
首先針對全國典型重載交通道路的情況,特別是對焦作地區的重載道路現狀以及由於重載交通引起的路面破壞現象、原因進行了細致的調查和較為系統的研究分析,並利用hds - 2移動式軸載儀,對現有道路的實際超載情況進行了實測,在此基礎上對重載和瀝青路面,進行了半剛性材料的非線性實驗以及瀝青路面重載車轍試驗。In the paper, the basic theory of construction mechanics is introduced. the time - dependant characteristics of concrete is discussed and its influence on structure response in the construction period is induced. subsequently the rigidity - leg phenomenon and the time - varing feature of load and resistence in the super hige - rise building " s conctruction period is analysized
本文介紹了土木工程施工力學研究的基本理論,分析了混凝土的依時變形特性及其對施工階段上部結構受力的影響,並研究了施工階段高層及超高層建築結構的荷載、抗力的時變特性及「剛度遲后」現象。The relationships among stress, strain, resistance and temperature of niti memory - wire and superelastic wire, which are in constant temperature, constant stress and shape recovery, were measured and analyzed. the actuating property of cu - based spring in three basic conditions was investigated
對niti記憶絲及超彈性絲在恆溫拉伸卸載、恆載變溫以及形狀回復過程中的應力-應變-電阻-溫度之間的關系進行了系統的測試和分析;對cu基螺旋彈簧在三種基本使用狀態下的驅動特性進行了研究。The mechanical response of the appropriate reinforcement beam and the surplus reinforcement beam, which were loaded in the experiment conditions, was computed
模擬了適筋梁和超筋梁的加載過程,並研究了適筋梁和超筋梁各自的力學特性。The bearing load characteristic of large diameter and super - long pile bored pile in quaternary soil
第四系土層大直徑超長樁的承載特性分享友人