熱變形學 的英文怎麼說
中文拼音 [rèbiànxíngxué]
熱變形學
英文
thermomechanics- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
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A lot of engineering applications are carried out using our proposed method in this paper, such as thermal deformation measurement of a car lamp, analysis of the super low frequency harmonic vibration of a piezoelectric ceramic, dynamic mechanical behavior analysis of the ballistite material and so on
在前面所提出的理論基礎之上,本文對該方法在實際工程中的應用做出了大量的工作。本文利用時間序列法實現了汽車前燈配光鏡的熱變形檢測、壓電陶瓷片的超低頻振動分析以及火箭固體燃料的動態力學特性研究。Phenolic foam is a new generation heat preservation prevent fire soundproof material and polystyrene together ammonia ester foaming rubber etc, material to compare, and it is good that its biggest characteristics is a heat - proofound the low temperature contractility is smatt, and have te special prevent burning wit the size stability under 2000 heat, not burning, not melt not contract constant form not poisonous spirit hove no thick smoke, just surface formation layer
信息內容:酚醛泡沫為新一代保溫防火隔音材料與聚苯乙烯聚氨脂發泡橡膠比,其最大特點是耐熱性好,低溫收縮性小,具有獨特的阻燃和尺寸穩定性,在焊槍火焰下,不燃燒不收縮不變形,無毒氣無濃煙,只是表面炭化,性質穩定,耐化學腐蝕抗老化。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。Reverse engineering is used widely in the field of science study, technology, biomedicine etc, and is used for settling the problem of geometric size measurement, transmogrification measurement, scathe measurement, surveilling the quality of manufacture, profile modeling, cad / cam, and physic diagnosis etc. in these techniques, the deformable active model is a hot point research
反求工程技術廣泛應用於科學研究、工程技術與生物醫學等領域,以解決或輔助解決幾何尺寸度量、變形測量、振型測試、損傷測定、產品質量監控、實物仿形、 cad cam以及醫學診斷等諸多問題。在用於輪廓提取的技術中,可變形活動輪廓是目前國內外研究的熱點。From the feature of the force and deformation of the tpih, 5 different elements are used to mesh the different zones of the tube, which are structural beam 3d elastic 4, structural pipe plastic straight 20, structural pipe elastic elbow 18, structural shell elastic 4 node 63 and contact 3d pt - to - surf 49 ; the contact problem is assumed to be flexible - to - flexible ; the temperature field is assumed to be body load. a mechanical model corresponding to reality has been established for numerical simulation. based on the above, the 3 - d fem numerical simulation of tpih has been carried out by using the ansys program
針對加熱彎管過程的受力和變形特點,採用三維梁單元、三維塑性直管單元、三維彈性曲管單元、三維殼單元與三維點對面接觸單元等5種不同的單元分別對管毛坯不同區域進行劃分,並對接觸單元採用柔體-柔體的處理方法,將溫度場作為體載荷處理,建立了符合實際的加熱彎管問題數值模擬力學模型:在此基礎上,應用商用軟體ansys對加熱彎管過程進行三維有限元模擬與研究,獲得了成形時推力、彎矩、支撐力大小及其變化趨勢。It is the first time to use the conventional espi system ( neither phase shifting nor carrier is used ) to continuously analyze the super low frequency vibration with high quantitative in the world
在火箭固體燃料動態力學特性研究中,時間序列法成功的給出了固體燃料的蠕變曲線和蠕變速率曲線,並且給出了其熱變形和蠕變不同時刻的全場位移分佈。As the content of vermiculite minerals was about 3 %, the impact strength ( nick ), the flexural strength and the heat distortion temperature ( hdt ) of the nanocomposites all were the lowest and decreased 21 %, 28 %, 3c, respectively. compared with those of the polybenzoxazine ( bisphenol a type ), its thermal expanded coefficient ( tec ) was 3. 4 % bigger than that of the polybenzoxazine ( bisphenol a type )
雙酚a型ben蛭石納米復合材料的力學性能和熱性能表現出明顯的結構特徵,普遍地低於純樹脂的性能數值,而優于雙酚a型ben金雲母復合約zi和zs 「熱變形溫度dt )低約3 ,線膨脹系數高約3Based on thermodynamics laws, inner - variable theory and analysis of conventional tn - axial tests data and breakage characteristics of loess, this paper proposed that the loess would produce elastic, plastic and nonreversible damage deformation during loading
從熱力學定律和內變量理論出發,在對常規三軸試驗數據和土樣的破壞特性分析的基礎上,認為土體在受力過程中將產生彈性變形、塑性變形和不可逆損傷變形。Test results show that that the breakcown voltage and heat distortion temperature the encapsulating materials of epoxy resin with hgh are famously improved, but the the addition of hgh, the viscosities of the epoxy resin - hgh system is higher compared with that of the others and the encapsulating process is effected. nano - sio2 improves the mechanical properties of encapsulating materials of epoxy resin, impact strength reaches 27. 64kj / m2 from 13. 95 kj / m2, flexural strength reaches 136. 68mpa from64. 95 mpa. by addition of the montmorillonite, glass transition temperature and heat distortion temperature of the encapsulating materials are 13. 2 and 16 higher than that of epoxy re
結果表明,活性硅微粉對環氧灌封材料的熱變形溫度和電學性能提高較為顯著,尤其在浸水后,電學性能降低幅度很小,西北工業大學碩士學位論文但活性硅微粉用量較大,材料的工藝性能明顯降低;納米5102對環氧灌封材料具有顯著的增強和增韌作用,沖擊強度、彎曲強度由原來的13 . 95kj / mz和64 . 95mpa分別提高到27 . 64kjzm2和136 . 68mpa 。That is, by the calculation of the anti - thermal deformation quality factor and synthetic quality factor of some typical primary mirror materials, the primary mirror material is selected scientifically and rationally. by the finite element method and the conception of structure rigidity quality factor, researching the relation between the light - weighted cell shape, the mirror thickness and mirror structural rigidity quality. by the force - thermal coupling analysis of the primary mirror assembly, the relations between the thickness, height of the flexible support reed and primary mirror synthesis surface figure error ( p - v ) have been researched
即,通過對常用主鏡材料的抗熱變形品質因數和綜合品質因數的定量分析,科學地完成了主鏡的選材;應用有限元分析方法,藉助于結構剛性品質因數的概念,研究了主鏡輕量化孔的形狀和主鏡厚度對鏡結構剛性品質的影響;通過對主鏡組件的力熱耦合分析,研究了主鏡柔性支撐簧片厚度與高度對主鏡面形的影響。In order to study the thermal performance and residual stress of microelectronic subassembly, in this paper, a newly optical interferometry method for 3 - d displacement measurement is developed based on wavefront interference theory. in which the moire interferometry provide the in - plane displacement, but the system is different from the conventional interferometry, the system applies the double diffraction of the specimen grating, the in - plane displacement sensitivity is a factor of 2 higher than that of the conventional moire interferometer. twyman / green interferometry method for out - of - plane displacement measurement is adapted, the advantages of the optical set - up are structure novelty, and the fringe patterns of the displacement fields shown high contrast and spatial resolution
為了詳細研究試件的熱變形特徵以及殘余應力的影響作用,本文在波前干涉理論的基礎上,設計了一新型三維光學測試系統,該系統的平面位移測試基於雲紋干涉方法,但採用與普通雲紋干涉不同的光路系統,利用試件光柵和平面反射鏡組形成的兩次衍射,使平面位移干涉條紋倍增,測量靈敏度是普通雲紋干涉的2倍,系統的離面位移場測試採用泰曼格林干涉光路。Compared with traditional optical materials, the specific stiffness of sic is much bigger. if the structural dimension is the same, the lightweight extent of sic components is the highest. furthermore, sic have these merits of low thermal distortion, excellent optical performance, isotropy, innocuity and molding for complex shape
與傳統光學材料相比, sic的比剛度最大,在尺寸相同的條件下,其輕量化程度最高;此外,它還具有熱變形系數小、光學性能好、各向同性、無毒、能夠實現復雜形狀的近凈尺寸成型等優點,因而成為空間反射鏡的首選材料。Gloss. color. tensile strength. yield tensile strength flexural rigidity. flexural. elasticity. lmpact resistance. coating thichness. coating hardness. adhesion lmpact. abrasion. chemical resistance. cosfficicent of linear. thermal expan - sion thermal transmission properties. hdt
光澤.顏色.拉伸強度.屈服抗拉強度.彎曲強度.彎曲模量.抗沖擊性.塗膜厚度.硬度.附著力.耐沖擊.耐磨耗性.耐化學性.熱膨脹系數.熱傳導系數.熱變形溫度The thermal distortion test of 5x8 sub - array panel was done in high temperature and normal pressure environment. the methodology, procedure and results of thermal distortion test are explained in detail. the test shows the differences between measuring results and fea analyzing results are quite limited
介紹浙江大學博士學位論文空間4 10米可展開天線的動力耦合分析及實驗技術研究韋娟芳了常溫高溫下的5x8子陣板的熱變形試驗,包括試驗方法、試驗步驟以及數據採集設備。The research theme of this dissertation is the working mechanism of bionic thermostable component. combined with the project of national natural science foundation ? study on bionic thermal robust component for precision machine tools " ( no. 59805018 ), actively absorbed the original thoughts and new technologies of correlative subjects, piezoelectric bionic intelligent structure and its applications on the engineering realm are systematically and thoroughly studied and many innovative and unique views are put forward so as to improve the control performance of piezoelectric intelligent structure
本文以仿生熱穩定構件的工作機理為研究主線,結合國家自然科學基金項目? 「精密加工設備仿生熱魯棒構件的研究」 ( no . 59805018 ) ,積極吸收相關學科的新思想、新技術,系統地研究壓電仿生智能結構及其在工程領域的應用,改善壓電智能結構控制性能,並將其引入精密機械熱變形控制研究領域。In order to avoid the shell cracking during baking process of quick investment casting based on stereolithography ( sl ) pattern, an expanding model of sl pattern - ceramic shell is proposed via analyzing the interaction between investment shell and sl pattern, then the cracking condition of investment shell is given
摘要為了解決快速熔模鑄造中型殼開裂問題,對樹脂模型與型殼材料在消失過程中的熱變形機理和型殼開裂條件進行了有限元分析,建立了原型型殼熱變形數學模型,並應用於新型燃氣渦輪導向器的快速鑄造。The warm - hot deformation behavior and modeling of 20crmnti steel
鋼的溫熱變形行為及其數學建模The pvc insulated nylon sheathed wire has advantages with excellent thermal stability, larger machanical strength and surface strength, anti - thermal - distortion, better bending strength and impulse strength, abrasion resistance and chemical - resistance and self - lubrication as well as better machine - oil - resistance and gas - proof
尼龍護套pvc絕緣電線具有優良的熱穩定性、較高的機械強度、表面強度、耐熱變形性、抗彎強度、沖擊強度、耐磨性、耐耐化學性和自潤滑性, 2 、更具有耐機油、耐汽油性。This subject is supported by national natural science foundation of china ( " research on fundamental theory of thermal error for mechanical fit and its application ", no. 50075023 ). the theory on thermal deformation of mechanical elements in non - uniform temperature distribution is mainly studied. many experiments have been finished and some new ideas have been attained
本課題來自於國家自然科學基金項目「機械配合熱變形誤差的基礎理論與應用技術研究」 (項目編號50075023 ) ,主要是對非均勻溫度場的熱變形進行理論研究,同時進行了大量的實驗,取得了一些成果。Learning approach to compensate machine tools thermal deformation based on neural network
神經網路補償機床熱變形誤差的機器學習技術分享友人