積載性能 的英文怎麼說
中文拼音 [jīzǎixìngnéng]
積載性能
英文
accessibility in stowage-
Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )
本研究以武裝直升飛機防護裝甲材料為研究對象，採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合材料，結合其力學性能、掃描電鏡和界面微區能譜分析結果，分析了sic _ p al復合材料的真空燒結過程中的界面現象，以及材料增強和斷裂機理，並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態（應變率為3 . 3 10 ~ （ - 3 ） s ~ （ - 1 ） 5 . 2 10 ~ 3s ~ （ - 1 ） ）的壓縮破壞響應進行了研究，分析了不同體積分數sic _ p al復合材料高應變率壓縮載荷下，材料的變形和微觀損傷機理，以及利用高速沖擊空氣炮測定了改復合材料制備剃度復合板的穿透性能。Here the conductance, carrier concentration and hall mobility ect parameters of er doped cdte films have been given. using seto model, we calculate the grain - boundary barrier of er doped cdte films and analyze the varing dose influence on the grain - boundary resistance
討論了不同er離子注入量對硅基底上沉積的cdte薄膜結構和光電性能的影響，並具體給出了摻雜cdte多晶薄膜的電導、載流子濃度及遷移率等參數值。We research the causes of concrete cracking, develop the high performance anti - cracking additive, optimize the concrete mix and construction techniques, increase the stability of concrete volume by shrinkage compensation, enhance splitting tensile strength, and can meet demand of high workability of fresh concrete. in the study, a thorough investigation of this problem is made from all points of view, with the aid of various modern measurement & testing technology and different theories & methods in surface physical chemistry, structural chemistry, solid - state chemistry, composite materials, fracture mechanics, etc. our research results have shown that the various shrinkage of concrete cause concrete cracking in building engineering, such as autogenous shrinkage, dry shrinkage, temperature shrinkage, plastic shrinkage, carbonized shrinkage, etc
目前，解決混凝土開裂的方法是綜合的，我們調查研究了混凝土開裂的原因，開發研製了高性能抗裂外加劑，優化混凝土的設計和施工方法，並通過補償收縮達到混凝土體積穩定，提高抗裂強度，滿足混凝土拌和物高工作性能的要求。本研究採用多種測試技術，應用表面物理化學、結構化學、固體化學、復合材料學、斷裂力學等多學科的理論與方法，從不同的角度進行深入的研究和探討。通過調查研究建築工程中出現的混凝土開裂、滲漏問題，發現混凝土在非荷載作用下開裂主要是由混凝土的自收縮、乾燥收縮、溫度收縮、塑性收縮、碳化收縮等各種收縮變形引起的。The result shows that under the effect of repeated impact load, the stress wave produces reflection in the metallurgical junction plane between coating and basal body, and forms stretch wave causing longitudinal split and angle split of coat ; the microcosmic spot pitting and deep layered peeling off occur in coating surface due to stress concentration ; the energy accumulation of impact loading causes rigidity variation and plastic deformation
結果表明：在多沖載荷作用下，應力波在塗層和基體的冶金接合面發生反射，形成拉伸波造成塗層的縱裂和角裂；在塗層表面由於應力集中，塗層表面發生微觀點蝕和深層剝落；沖擊載荷能量的積累，造成塗層試樣硬度變化和塑性變形。First, mathematical model of swaying system is made, which is a basis on later chapters. meanwhile, the system is simulated and designed. the effect of loaded mass, loaded suppleness, general leaking coefficient and cubage elasticity modulus on performance of system is also analyzed
首先，作者建立了橫蕩控制系統的數學模型，作為以後各章節討論的基礎，同時對系統進行模擬和設計，並研究了系統負載質量、負載剛度、總漏損系數和容積彈性模數對系統性能的影響。A series of static and fatigue experiments which include lots of specimens are performed on bolted composite laminates that include different sizes, different lay orientations and different torques. dye - enhanced x - radiography is used to check the progressive damage process as evaluation techniques, which can be made nondestructively. finally, the ultimate strength and fatigue life of composite bolted joints in static tension and
層合板接頭的試驗研究考慮了多種幾何尺寸、多種鋪層及不同擰緊力矩對其靜強度及疲勞性能的影響，同時使用滲透劑增強的x射線圖象技術對靜載和疲勞損傷擴展及累積過程進行了無損檢測，並對其進行了分析探討。Electronic soft starter is a kind of novel motor control device which can implement the soft - start, soft - stop and energy - saving of the asynchronous motor. compare in the traditional motor starter, it has outstanding advantages such as stepless regulation of the motor start, avoid the inrush of the torque and the current, and reliable protections, convenient operation and starting repetitively. so the paper aim at electronic soft starter, asynchronous soft starter of electrical machinery electron as research object, study it ' s high - performance soft starting technology - torque control soft - start, develop its realization circuit
異步電動機電子軟起動器是一種集電機軟起動、軟停機、輕載節能和多種保護功能於一體的新穎電機控制裝置，相比于傳統的起動器，它突出的優點體現在能夠連續無級的調節電機起動、沖擊轉矩和沖擊電流小、控制簡便、起動重復性好以及體積小等方面，本文以異步電機電子軟起動器為研究對象，研究高性能的電機軟起動技術- - -轉矩起動方式，並研製其實現電路。In the dissertation, a novel hybrid excitation constant voltage synchronous generator is adopted to improve the system performance, which takes the advantages of both electrical excitation and permanent magnet machines. a parted configuration is presented in order to design the structure of the generator. the adaptive digital adjustment is settled in principle using the single chip microcomputer 80c31 as the control core of the voltage regulator and adopting the proportion - integral - differential control as the control arithmetic, then a sample is made
論文對同步發電機的工作原理、性能特點、電機本體以及電壓調節器的硬體和軟體設計進行了研究，針對稀土永磁同步發電機變載、變轉速情況下輸出電壓不可調的不足之處，採用一種新穎的電機型式? ?自適應復合勵磁恆壓同步發電機，綜合了永磁發電機和電勵磁發電機的優點，提出一種磁路分開的結構進行電機本體的設計，並選用單片機80c31作為電壓調節器的控制核心，比例?積分?微分控制（ pid ）作為其控制演算法，從原理上較好地解決了其電壓的自動數字調節，並試制了一臺樣機。Based on the test data of the crc beams taken from some chemical plants, which were mainly corroded by chloride, a calculation model was derived to calculate the ultimate load bearing capacity of such crc beams. then, bp nn model was built up to predict the ultimate load bearing capacity of crc beams. using such nn model to analyze many groups of test data ( under various corrosion cases ), satisfactory results are achieved
基於目前較少開展的實際腐蝕環境下鋼筋混凝土構件受力性能的試驗研究，通過引入受腐蝕混凝土和銹蝕鋼筋的損傷因子導出了受氯離子腐蝕鋼筋混凝土構件極限承載力計算模型；建立了bp神經網路模型對受腐蝕鋼筋混凝土梁承載力進行了預測，通過對多組國外試驗研究結果（不同腐蝕作用情況下）的分析均取得了令人滿意的預測結果，並且隨著試驗資料的積累，預測效果可以得到進一步的改善；因此，本文建立的神經網路模型對受腐蝕鋼筋混凝土構件承載力研究是一種十分有效的方法，具有較好的應用前景。Detaching human capital property rights from its owner and other kinds of losing human capital property rights, namely, deformity of human capital property rights would lessen enthusiasm and go - aheadism of the owners of human capital, or even close the human capital, making the value of the capital useless
人力資本所有權與其載體的分離以及其他權利的受損，即人力資本產權的殘缺，可能導致人力資本載體失去積極性和主動性，甚至將相應的人力資本「關閉」起來，使這種資本的經濟利用價值一落千丈。Second, many mechanical properties are tested, for example, tensile strength and tensile modulus, flexural strength and flextural modulus and impact strength. by the analysis of the tensile stress - strain curves and the flexural stress - strain curves, the results are as follows : 1 ) the voluminal content of fibre of composite making by vacuum assistant resin injection is more than other composites. 2 ) the mechanical properties of the needlepunching nonwoven fabric reinforced polymer composite are superior to these of the calendering nonwoven fabric reinforced polymer composite
首先，採用不同的增強材料（針刺非織造布和熱軋非織造布） 、不同的基體材料（ 961樹脂和306樹脂）和不同的成型工藝方法（手糊法、真空袋法和真空輔助成型法）製造出了一系列非織造布增強復合材料，然後對它們的拉伸強度、拉仲彈性模量、彎曲強度、彎曲彈性模量和沖擊強度等力學性能進行了測試，並分析了它們的拉伸載荷? ?位移曲線和彎曲載荷? ?位移曲線，結果表明真空輔助成型工藝能大大提高纖維的體積含量；針刺非織造布增強復合材料各項力學性能優于熱軋非織造布增強復合材料。Through the bonding tests and the theory analysis between the advanced composite glass sheets and the concrete under the general load - carrying condition, the iterative load - carrying condition, the freeze - thaw action, and the defective bonding, the calculative model has been established, and the numerical value of fibre sheet strain under different load - carrying has been confirmed. the bond strength calculative expressions for the concrete bonded with glass fibre sheet under the pull - shear and the bend load - carrying conditions have been established. the author put forward the decreasing coefficient and the calculative expressions for the influence of reinforce effect by the non - effective area and the calculative expressions for the influence of the freeze - thaw action on the carrying capacity of the concrete beams
本文採用美國泰扶高強復合玻璃纖維布以及與之性能相當、由南京玻璃纖維研究院自行研製開發的egfw430型玻璃纖維布兩種材料，通過在靜載、重復荷載、凍融及有缺陷粘結條件下的高強玻璃纖維布與混凝土粘結性能的試驗研究與理論分析，建立了玻璃纖維布-混凝土的粘結計算模型，明確了不同受力狀態下纖維布應變的設計取值，提出了玻璃纖維布-混凝土抗剪粘結強度的計算公式;確定了考慮非有效粘貼面積對加固效果影響的折減系數;給出了凍融循環次數引起承載力下降的插值計算方法;並驗證了重復荷載作用下玻璃纖維布與混凝土良好的粘結性能。Beams are researched, and the relation between strains of corroded re - bars and fatigue life of beams are obtained. the main research contents and conclusions are as following : 1. under the fatigue loads, the overstrain of concrete approximately coincidences three stages strain development and accumulation rule, and the mechanical property of concrete is deteriorated
鑒于實際工程中大量存在腐蝕鋼筋混凝土結構承受反復荷載作用，但其力學性能研究不多的問題，本論文進行了銹蝕鋼筋混凝土梁抗彎疲勞試驗，研究了應力比和鋼筋銹蝕率對銹蝕鋼筋混凝土梁抗彎疲勞性能的影響，得出了銹蝕鋼筋的應變與構件疲勞壽命之間的關系曲線，主要研究內容及結論如下: （ 1 ）在循環荷載下，混凝土殘余變形基本符合三階段變形規律，力學性能劣化，疲勞損傷積累。Systemic study had been done in this work on the high - crystallinity selecting, impurity removing, acid - activation treating and memo - activation treating of the sepiolite mineral. the specific surface area and activation center of the sepiolite were increased greatly, which endowed the materials with properties as catalyzer earrier. in addition, due to the largely improvement of the main properties of sepiolite such as adsorption properties and catalyzing properties, this novel type of sepiolite would achieve wider application in the field of industry, agriculture, environment protection and so on
通過對海泡石礦物進行高結晶度選擇，除雜、進行酸活化處理和熱活化處理等四個方面的系統研究，海泡石的比表面積和活化中心達到大幅度提高，使海泡石達到作催化劑載體的目的，而且由於海泡石的主要性能吸附性能和催化性能大幅度提高，使海泡石在工業、農業、環保能得到更廣泛的應用。Clsm, afm and tem testified the deposition of these drugs and the experiments carried out in ( 1 ) different initial incubation concentration, ( 2 ) different temperature, ( 3 ) different nacl concentration and ( 4 ) different ph revealed that the drugs have a relative high deposition efficiency in the high initial incubation concentration, high temperature, high nacl concentration and high ph environment, and relatively stable release properties in the low initial incubation concentration, low temperature, high nacl concentration and low ph environment
在（ 1 ）不同初始濃度、 （ 2 ）不同溫度、 （ 3 ）不同鹽濃度和（ 4 ）不同ph值下對模型藥物rdb和抗癌藥物dnr沉積和釋放的研究發現高初始濃度、高溫、高鹽和高ph值環境下有利於藥物的沉積；而低初始載藥量、低溫、高鹽和低ph值環境下，沉積后的藥物則具有相對平緩的釋放性能。Cid - icp - aes has the advantages of high sensitivity, high signal - to - noise and high quantum efficiency, which nearly reaches theoretical limit value of theoretical parts of an apparatus ; it can memorize thousands of spectra lines at the same time. cid - icp - aes is the newest model, and there are still few articles to report analytical character of this type, as this result the optimum of operating condition and the effect of analytical parameters for photometric precision, signal - to - noise and detection limits are studied : r. f. power is 11 sow, nebulizer pressure is 28psi, the measurement time is 3 times and the integral time is 20s
本實驗室的光譜儀是當前最新型號的全譜直讀光譜儀，這類新型裝置分析性能的研究報道較少，因此研究著重分析了參數對測量精密度、線背比及檢出限的影響，對儀器最佳操作條件進行了摘要優化：發射功率採用1150w ；載氣壓力為28psi ，測量次數選擇3次，積分時間為205 。The test results demonstrate that this prototype has excellent comprehensive performances such as small bulk, lower weight, high efficiency, high steady precision, fast dynamic response, wide range input voltage, good output waveforms, strong over - load and short - circuit ability, and strong function with different nature load and three - phase unbalanced load
試驗結果表明，該變流器具有體積重量小、變換效率高、靜態精度高、動態響應快、輸入電壓變化范圍寬、輸出波形質量高、過載與短路能力強、帶不同性質負載和帶三相不平衡負載的能力強等優良的綜合性能。Full bridge phase - shifted zero - voltage - switched converter ( fbps - zvs converter ) is a successful implementation for soft - switching and is easy for usage in dc / dc converter. the core technique to reach digitalization is dsp technique. in order to reach both high frequency and digitalization of converter, a fbps - zvs converter based on dsp control is proposed in this paper the converter worked on the high frequency of 150k. periphery hardware circuit is simple and its bulk is small. the converter realizes soft - switching over half load and get a high efficiency. it achieves the aim of digital control and error protect
實現數字化的核心是dsp技術。本文立足於將開關電源的高頻化與數字化相結合，具體研究內容為一種基於dsp控制的移相全橋軟開關zvs變換器，該變換器工作于較高的開關頻率（ 150k ） ，外圍硬體電路結構簡單、器件少、體積小；在半載以上實現了開關管的zvs開關，取得了較高的變換效率；實現數字化控制與故障保護，變換器取得了較好的性能效果。5, comparatively computation analysis is carried out among pcc pile and cast - in - situ concrete circular pile and prefabricate concrete square pile by program which is develop in the paper. two angles such as the same diameter and transect area of the pile are analysed. the advantages of the pcc pile have been proven on the aspects of technique and economy in the paper
5 、將pcc樁和工程中常用於承受水平荷載的灌注圓形樁及預制方形樁進行了對比計算分析，從相同的樁徑和等效的截面積兩個角度論證了pcc樁在承受水平荷載時的技術經濟的優越性，從對比分析中證明了pcc樁優于其他樁型的薄壁性能。Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result
西安理工大學碩士學位論文在水平地震作用下，並考慮風荷載組合，分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系，通過改變結構參數，運用空間有限元方法，進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ，以及「構件內力」 。結果表明:在等面積原則下，異型柱代換矩形柱后，結構剛度增大，側向位移明顯減小，地震反應力略有增加，框架柱軸壓比最大增幅小於8 % ，結構整體抗震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時，結構有利於抗震;水平地震作用力與整體坐標夾角為0度時，結構地震作用效應較大，屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐，側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小，構件內力增大適中，是一種抗震性能優越的結構體系:在抗震設防烈度較高地區（ 8度）和抗震不利的建築場地（ m類場地） ，採用異型柱結構體系時，應盡可能減輕結構自重，降低地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算，兩種方法所得結果基本一致。分享友人