熱力學壓強 的英文怎麼說
中文拼音 [rèlìxuéyāqiáng]
熱力學壓強
英文
thermodynamic pre ure-
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。My personality stable with a high degree of responsibility, and i can work independently, i have strong adaptability to changes and can make a harmonious relationship with others, i have a high sense of humor ; i have a good command in english speaking, listening writing reading and can deal with daily conversations in japanese
本人個性穩重、熱愛教育事業,具有高度責任感,細心,能夠獨立工作、應變能力強,幽默真誠,能很好的融洽同學之間的關系;有進取心且抗壓能力強,英語方面具有一定的讀說聽說能力,口語流利;另外能應付基本的日語對話。In the end, the mechanism of explosive accidents of lpg vessel under high temperature is analyzed. the major inducements of lpg vessel under high temperature are as follows : 1 ) sudden falling of pressure on valve opening ; 2 ) material strength falling of vessel wall, which is caused by high temperature of vessel wall ; 3 ) thermal stress that is caused by non - uniform temperature of vessel wall
武漢理工大學碩士學位論文? ?論文最後分析了高溫環境下液化氣容器爆炸的事故機理,即高溫環境下液化氣容器爆炸的主要誘因為: 1 )閥門打開時的壓力驟降; 2 )容器壁溫度過高,導致容器壁的材料強度降低; 3 )容器壁的溫度不均勻引起的熱應力。This paper aims at the characteristics of thermal response of lpg vesse1 under high temperatue, conjoining the project of " study on transportation safety early - wdring system of lpg dangerous goods " supported by transportation departinen of china and the project of " mechanism study and numerical simulation of the explosion of lpg vessel " supported by science foundation of hubei province. the interdisciplinary research has been done among temperature field distribution of lpg vessel under flame surroundings, intensity calculation, crack propagation predication and mechanism of explosive accident, etc. three parts are analyzed and discussed
本文針對高溫環境下液化氣壓力容器的熱響應特性問題,結合交通部重點科技項目「液化氣體類危險品運輸安全預警系統的研究」和湖北省自然科學基金項目「液化氣容器爆炸機理研究及數值模擬」 ,對在火焰包圍下的液化氣壓力容器的溫度場分佈、強度計算、裂紋擴展預測以及爆炸事故機理等方面開展了多學科的交叉研究。The key items influent on the characteristics of spraying have been also studied in the dissertation, we can get a good spraying result by adjusting the related parameters efficiently. ( 3 ) the theoretical model of the dynamical parameters such as temperature, moisture, pressure and contour for hot medium and particle inside the drying chamber were obtained by model, utilized the computational fluid dynamics technique to solve the problem between spraying droplets medium by arranging the double grid dispersing structure and rotary outlet structure and the developed structure improved the drying efficiency and product quality
( 3 )採用-模型實現了壓力噴霧乾燥塔的溫度場、濕度場、流場的理論建模,利用計算流體力學( cfd )技術來解決噴霧乾燥過程中熱介質與霧滴間的傳熱傳質以及動量傳遞和湍流擾動等問題,避免了乾燥過程中的設計不合理狀況;通過增加雙格柵均風裝置和旋轉出風裝置,改善了乾燥塔內的熱質傳遞,提高了乾燥塔的體積蒸發強度。With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion
研究結果表明:通過對rpc各組分摻量變化的研究,可以找到rpc的最優配合比;試件成型后的熱養護制度對rpc的性能影響巨大; rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況,剛纖維的摻入可以大幅改善rpc的韌性; rpc在成型后存在較大的收縮,而其中的化學收縮要遠遠大於乾燥收縮; rpc具有很強的抗氯離子滲透性能,漿體的密實度很高;通過x射線衍射實驗,可以發現rpc的膠凝體中ch晶體已經幾乎不存在,膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成;在抗溶液侵蝕的實驗中,摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件,酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用,但是機理各有不同。Based on the method of energy consumption, an analysis is given of the impact, which the dirt growth of a tube and shell sewage heat exchanger will have on transfer intensity, flow pressure drop and their energy losses
本文運用熱力學能耗分析法,分析了管殼式污水換熱器中軟垢的厚度對換熱強度、流動壓降及其有效能損失的影響。Narrowly speaking, eos is the relationship between the pressure, the volume and temperature of substance system in thermodynamic equilibrium
從狹義上來講,物態方程是描述處于熱力學平衡態的物質系統中壓強、溫度、體積之間的函數關系。In a narrow sense of the word, equation of state ( eos ) is the relationship of pressure, volume ( or density ) and temperature ( p - v - t ) for substance system in thermodynamic equilibrium
從狹義上講,物態方程是描述處于熱力學平衡態的物質系統中壓強、溫度、體積或密度之間的函數關系( p - v - t ) 。Study on technology and performance during tube extrusion of high strength aluminium alloy
高強度鋁合金管材熱擠壓工藝及力學性能分析Microstructure of the composite layer was analyzed with help of optical microscope, scanning electronic microscope ( sem ), electronic probe microanalysis ( epma ) and x - ray diffraction ( xrd ). the compacting of the billet and the forming mechanism of the carbide reinforcement were studied based on thermodynamics and kinetics of reaction, sintering theory and the result of dta. at the same time, the wear - resistance of the composite layer was studied under condition of dry sliding friction
利用光學顯微鏡、掃描電子顯微鏡、電子探針以及x -射線衍射儀,分析了表面復合層的基體組織結構;運用反應熱力學、動力學、粉末燒結理論和燃燒合成理論,結合差熱分析結果,探討了表面復合層壓坯的燒結緻密化原理和碳化物增強相的形成機理;利用坯塊在真空燒結爐不同溫度下的燒結出來的顯微組織分析,模擬出坯塊的燒結過程中的化學反應過程。Equation of state ( eos ) for porous iron is used to describe the relationship of its state variables : volume, temperature and pressure in equilibrium states, which is used widely in the geography
物態方程是指描述平衡態物質系統的壓強、體積和溫度三個熱力學變量關系的等式。研究多孔鐵的沖擊壓縮物態方程在地學領域有廣泛的應用。The precondition of establishing mathematics model of torpedo turbine system in design condition is to fulfill the external conditions ( such as torpedo sailing speed and depth etc. ) and inner conditions ( such as turbine power and efficiency etc. ). after establishing mathematics model of torpedo turbine system in design condition, we compiled simulation program to compute all kinds of inner parameters of turbine engine include engine type, principal layout of turbine, inner structure of turbine and state parameters of gases
首先分析設計工況時渦輪機動力系統,在滿足魚雷動力系統的各項外部條件(如魚雷航深、航速等)和內部條件(如渦輪機功率、效率,燃燒室壓力、溫度,轉子機械強度等)的前提下,建立起設計工況渦輪發動機的數學模型,編程計算並確定渦輪機內部機械結構和燃氣熱力學狀態各參數。The results from experment showed that this surface - intensified wood - plastics particleboard had good surface property and mechanical strength, properties of the concrete formwork made of the wood - plastics particleboard were superior to the requirements specified in standard ; and the properties of the concrete formwork prepared by adopting overlaying process were better
實驗結果表明,這種表面增強木塑刨花板具有良好的表面性能和力學強度,各項性能都優于有關標準的要求;採用玻璃鋼二次貼面工藝生產的木塑刨花板性能優於一次熱壓的木塑刨花板。In order to make investigators know about the current research state of preparation of the carbon / graphite materials with high density and strength from mesocarbon microbeads, and direct the research, development and production, in this review, the influence of preparaed mesocarbon microbeads from various raw materials and methods of preparation, ball diameter of carbosphere, preoxidation temperature and time, moulding pressure and time, heat treatment temperature and heating rate, holding time on the mechanical properties and microscopic structure of carbon / graphite product were discussed by us
摘要為了對中間相炭微球制備高密高強炭石墨材料的研究現狀有所了解,並且對實驗和實際生產起到指導作用,本文通過參閱大量中外文獻,討論了不同原料及制備方法制得的中間相炭微球、炭微球的球徑、預氧化溫度及時間、成型壓力及時間、熱處理溫度及升溫速率、保溫時間對炭石墨製品的力學性能及微觀結構的影響。The paper applies ansys finite program to analyse coalstore - shale fired perforated brick ' s hole shape, and finds the factors that influence the strength of bricks. the author attempts to explore from the basic principle of heat transfer the effect of the changes of hole arrangements and hole ratios of the perforated ( hollow ) brick in certain dimensions on the thermal transition of the brick, and to improve the thermal insulation property of the brick on this basis
通過ansys有限元應用軟體對不同孔型、不同孔排列的多孔磚進行力學性能分析,找出影響多孔磚力學性能的因素;探討了在一定尺寸條件下,多孔磚、空心磚的孔洞排列與孔洞率的變化對磚體傳熱性能的影響,以此改善磚體的抗壓強度和隔熱保溫性能。Conclusively, organic modifier used for layered silicate plays an important role in determining the stable nanostructure. finally, glass - fiber reinforced phenolic nanocomposite is prepared and its mechanical properties are investigated
制備玻璃纖維增強的模壓料,討論了粘土含量、樹脂中熱固性酚醛和線型酚的比例對模壓試樣力學性能的影響。Liquid rocket engine is a thermal kinetic system, it runs under extremely strict physical conditions, such as high temperature, high pressure, strong erosion, high density of energy release, strong components parameters coupling. it is very difficult to establish accurate dynamic mathematical model
液體火箭發動機是一種在極端的物理條件(如高溫、高壓、強腐蝕和高密度的能量釋放等)下運行的復雜的流體-熱動力系統,部件參數強烈耦合,很難建立精確的動態數學模型。After clad plate is rolled, the thickness of al plate has a few changes. the tests firstly produced al clad plate under cold press, then dealed with it under certain temperature. tests tried to find a sound temperature to weaken the
先對鋁板和鋼板進行冷壓初復合,再在一定溫度下進行熱壓復合,試圖找到合適的熱壓溫度,消除界面脆化,提高復合鋼板的界面力學性能,檢測了試樣的顯微組織和結合強度。Pes is a good membrane materials which possess excellent properties, such as high mechanical strength, good chemical stability and resistance to heat, pressure and erosion, its temperature of glass transition is 225
聚醚碸( pes )是一種綜合性能優良的聚合物膜材料,其玻璃化溫度高達225 ,具有較高的拉伸強度和優良的化學穩定性、耐熱性、耐壓力,耐腐蝕等性能。分享友人