靜彈性模數 的英文怎麼說
中文拼音 [jìngdànxìngmóshǔ]
靜彈性模數
英文
static modulus of elasticity- 靜 : Ⅰ形容詞1. (安定不動; 平靜) still; calm; motionless 2. (沒有聲響; 清靜) silent; quiet Ⅱ名詞(姓氏) a surname
- 彈 : 彈名詞1. (彈子; 小球形的東西) ball; pellet 2. (內裝爆炸物, 具有破壞和殺傷能力的東西) bullet; bomb
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 數 : 數副詞(屢次) frequently; repeatedly
- 模數 : [物理學] modulus; module; modulo; mod
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5 ) the 3 - d geometry and finite element model of the assembly of the optimized obturator of the breech mechanism is set up in terms of the optimized structural parameters. quasi - static and dynamic finite element analysis of stiffness, strength and obturating performance of the optimized obturator of the breech me chanism is performed
利用優化后的結構參數建立了優化后炮閂閉氣結構的裝配體三維幾何實體模型和有限元模型,對優化后的炮閂閉氣結構剛強度和閉氣性能進行了準靜態及動態多體接觸彈塑性有限元分析。To meet the demands for large space and flexible compartmentation of buildings, laminated vierendeel trusses are adopted in high - position transfer story structures. first the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upper chord, middle chord, and lower chord is derived. then combined with an actual engineering model ( 1 8 similar ratio ), the static loading and pseudo - dynamic tests of two models for laminated vierendeel truss used in transfer story structures are conducted, in which one model adopts reinforced concrete, and the other adopts prestressed concrete and shape steel concrete. seismic behaviors are analyzed, including inter - story displacement, base shear - displacement skeleton curves, and equivalent viscosity - damping curves. a program is programmed to carry out the elasto - plastic dynamic analysis, and displacement time - history curves of the two models are derived. the test and analysis results show that the laminated vierendeel truss with prestressed concrete and shape steel concrete has excellent seismic behaviors. it can solve the disadvantages of laminated vierendeel trusses used in transfer story structures. finally, some design suggestions are put forward, which can be referenced by similar engineering
為滿足建築物大空間和靈活隔斷要求,在高位轉換層結構中採用迭層空腹桁架結構.首先分析了其受力性能,得出了空腹桁架各構件合理的截面剛度以及布局形式.然後結合一實際工程,進行了兩榀迭層空腹桁架轉換結構模型( 1 : 8相似比)的豎向荷載下靜力試驗以及擬動力試驗.其中一榀為普通混凝土迭層空腹桁架,另一榀配置了預應力和鋼骨混凝土,對比分析了兩模型的層間位移比、骨架曲線以及等效粘質阻力系數等抗震性能的比較,並進行了彈塑性動力分析.試驗和分析結果表明,配置預應力和型鋼混凝土的迭層空腹桁架轉換結構具有良好的抗震性能,可以成功地解決迭層空腹桁架作為轉換層結構所產生的弊端問題,最後對這類轉換層結構提出了相應的設計建議This paper deals with the static and dynamic output kinematic accuracy of a group of elastic slider - crank mechanisms with the same design parameters by taking the bar length, joint - gaps, mass density, interception and physical parameters as random variables
摘要將彈性曲柄滑塊機構的桿長、截面尺寸、鉸鏈間隙、質量密度、彈性模量等幾何、物理參數均視為隨機變量,對機構輸出運動進行了靜態和動態誤差分析。In chapter 4, the influences of the earth ' s models on the elastic green ' s function, as well as on the atmospheric loading effects, are discussed using the numerical techniques. the attraction green ' s function is solved out based on the state equations of the ideal gas and the hydrostatic equilibrium equation. the influences of various factors upon the gravity and tilt green ' s functions, as well as upon the gravity and tilt, are considered in detail
第四章:採用數值計算方法,研究了地球模型對彈性項格林函數及其對大氣負荷響應的影響;利用理想氣體方程和流體靜力學平衡方程解算了吸引項格林函數,討論各種因素對大氣重力和傾斜格林函數及其對重力和傾斜的影響;基於球對稱地球模型,給出了武昌站臺站依賴的大氣重力、傾斜格林函數3 ) a 3 - d geometry and finite element model of the assembly of the obturator of the breech mechanism is established. quasi - static and dynamic finite element analysis of stiffness, strength and obturating performance of the obturator of the breech mechanism is carried out, based on elastoplastic theory and multi - body contact algorithm, and the simulation results coincide with experimental results, further, th e effect of friction factor on its obturating performance is investigated
建立了炮閂閉氣結構的三維裝配體幾何實體模型和有限元模型,對炮閂閉氣結構剛強度和閉氣性能進行了準靜態及動態多體接觸彈塑性有限元分析,分析結果與試驗結果相吻合,進一步研究了摩擦系數對其閉氣性能的影響。Several kind of simplified calculating models are introduced. the web and flange plates in mcar with a large number of corrugations were equivalent to orthotropic curve plates. the equivalent elastic modulus was yielded by tensile tests, which provides the material constants data for the structural static and dynamic analysis
2 、綜述了拱型波紋鋼屋蓋的各種簡化計算模型,並把帶有波紋的腹板和底板分別等效成正交各向異性平曲板,通過拉伸測試了它們的等效彈性模量,為結構的靜力和動力有限元分析提供材料常數依據。Determination of static modulus of elasticity under compression of autoclaved aerated concrete or lightweight aggregate concrete with open structure
敞形結構高壓蒸養加氣混凝土或輕集料混凝土受壓靜態彈性模數測定Point to above problems, under the financial support of the national natural science foundation ( exploration of high tech and new concept and new conceive ), the excellent young teachers program of ministry of education and national excellent doctoral dissertation special foundation, the static and dynamic real - time computation of elasticity - plastic mechanics, solving method of fuzzy finite element and other problems were studied in this paper. and some achievement was gained as following : ( 1 ) based on the positive definiteness of system stiffness matrix of finite element that was modified and the form of potential energy function of elastic body, the linear system of saturation mode ( lssm ) was introduced into the neural computation of finite element, by which the no - error solving of finite element neural net computation was realized in theory
針對上述問題,在國家自然科學基金(高技術新概念新構思探索) 、教育部優秀青年教師資助計劃、高等學校全國100篇優秀博士學位論文作者專項基金等的資助下,本文對彈塑性力學問題的動靜態的實時計算、模糊有限元的求解方法等問題進行了系統和深入的研究,取得了以下成果: ( 1 )根據有限元總剛矩陣經修正後具有正定性的特點以及彈性體勢能函數的具體形式,將飽和模式的線性系統(簡稱為lssm系統)引入到有限元的神經網路計算中,在理論上實現了有限元神經網路計算的無誤差求解。Practices show that the compressive strength, the modulus of elasticity, the permeability coefficient and the compactness of concrete obtained respectively by the compaction method, the unconfined compression static compaction method, the sand trenching and filling method, and nuclear densimeters meet the requirement of design, and the mixing proportion of concrete of the side - wall is reasonable
實踐證明施工中用擊實法、無側限抗壓靜力壓實法、挖坑灌砂法及核子密度儀分別檢測出的邊墻混凝土抗壓強度、彈性模量、滲透系數和密實度值均滿足設計要求,邊墻混凝土配合比合理。In the paper, static and dynamic triaxial tests were conducted on fiy ash at shanmenxia longgou ash dam, and the static and dynamic parameters of fly ash were obtained. thirdly the 2 dimensions static analysis of the ash dam was conducted based on biot ' s consolidation theory and duncan ' s nonlinear stress - strain model. finally the plane dynamic behaviors of the ash dam during earthquake of intensity 7 were analyzed based on the exponent function model of excess pore water pressure aroused by earthquake, which is put forward in the paper, and equivalent visco - elastic dynamic fem model and principle of effective stress
本文結合實際工程,對三門峽火電廠龍溝灰壩的築壩粉煤灰進行了靜、動三軸試驗,確定了該壩粉煤灰的靜動力學指標;然後根據比奧( biot )固結有效應力原理,採用鄧肯( duncan )非線性應力應變模型,對該灰壩的二維靜力應力和變形狀態進行了分析;最後利用本文提出的地震超靜孔壓指數函數模型,採用等價粘彈性動力有限元方法,對該灰壩在地震作用下的動力穩定性進行了分析評述。Through the analysis and calculation the conclusion can be made that during the process of the timbering of excavation, the magnitude of soil stress decreases with the increase of the displacement on the base of the still earth pressure, and the earth pressure distribution varies from the triangular distribution of the still earth pressure to other distribution with the displacement of the timbering structure. the thesis introduces the bedding coefficient in the horizontal direction varying with the soil displacement from soil - structure interaction mode, therefore calculation can be made to get more rational calculation result using elastic foundation finite element method which is the same to timbering structure both upwards and under excavation surface
通過分析計算可以得出,在基坑支護過程中,土壓力的大小在靜止土壓力值的基礎上隨支護結構向坑內側位移增大而減小;土壓力的分佈由靜止土壓力的三角形分佈隨支護結構位移變化成其它分佈;由土-結構共同作用模式引入隨土體位移變化的水平向基床系數,使支護結構在開挖面以上部分同以下部分一樣,均可採用彈性地基有限元法進行計算,得出更為合理的計算結果。Through the static and standard traffic cyclic loads, the responses of the pavement and subgrade have been attained. the studies on these responses such as elastic deformations, accumulative settlements and stress have been made under the changed characters of subgrade, such as moisture content, relative compaction of subgrade. the results of the experiments show that superfluous moisture content increases the vertical stress and the settlements of the construction under the similar relative compaction
通過靜力加載和模擬路面承受的豎向交通荷載的重復加載試驗,研究了路面路基結構在雙輪車輛荷載作用下的動靜態響應,分析了路面路基結構在浸水狀態(土層含水量增加)和壓實密度降低等不利因數的影響下,路面路基各結構層的動靜力學響應特性,如彈性變形、累積下沉、土壓應力等的變化規律。Therefore, study on dynamic properties of cement mixed pile foundations and the soil structure interaction during earthquakes is of great theoretical and practical importance in seismic design. this dissertation studies the static and dynamic properties of cemented composite foundations systematically through tests and parameters of duncan - chang model and hardin - drnevich model are generalized. the seismic acceleration is conversed and used as input acceleration through nonlinear method
本文通過試驗系統地研究了水泥攪拌樁復合地基的靜力和動力特性,得到了復合地基的靜力duncan ? chang模型參數和hardin ? drevich非線性彈性動力模型參數,採用非線性方法對地震加速度進行了反演並將之作為基巖輸入加速度。So, it is definitely different from other amb - ab. three aspects have been studied theoretically in this paper which were based on an analysis of a compliant multleaf journal self - acting air bearing, which are as follows : ( 1 ) a set of theoretical analysis method which include the development of. physical and mathematical model, the solution of governing equations and the prediction of static and dynamic performance of the foil gas bearing is proposed. the above theoretical analysis method provides a possibility for numerical analysis
本文在分析懸臂型彈性箔片徑向動壓氣體軸承工作原理的基礎上,做了以下幾個方面的工作: ( 1 )建立了懸臂型彈性箔片徑向動壓氣體軸承的物理和數學模型,確立並求解了控制方程,得到了靜、動態性能的穩定性分析方法,為數值分析懸臂型彈性箔片徑向動壓氣體軸承奠定了基礎。In fundamental theory, adaptive optics, electrostatic actuation, flexure beam theory and squeeze film damping are researched ; in fabrication, bulk micro fabrication process and surface micro fabrication process are researched and compared, then the structure parameters and layout of a 8 x 8 micromirror array are designed using summit foundry ; in analysis, analytical and numerical method are used to perform static analysis, modal analysis, transient analysis, frequency analysis and to characterize the farfield performance of this 8x8 micromirror array. finally, in order to realize large scale micromirror array with lower snap down voltage, advices are given for further research
在基本理論方面,通過對自適應光學,靜電力驅動,彈性梁理論和擠壓薄膜阻尼的研究,確定了微變形鏡的配置方案;在加工方面對體加工工藝, mumps工藝和summit工藝進行了研究與比較,並選用殘余應力小,表面質量好的summit工藝對8 8的微變形鏡陣列原型進行了結構設計與版圖設計;在分析方面主要對微變形鏡單元的靜態特性,模態特性,瞬態響應,頻率響應和8 8規模的微變形鏡陣列的遠場光學模型進行了研究,確定了微變形鏡的性能參數。3. regularity of some mechanics index such as compressive strength, constitutive relationship of stress to strain and modulus changing with temperature, standing time, cooling and curing process after cool were studied by test. corresponding regressive equation was obtained with large quantity of data
試驗研究了火災高溫后考慮靜置時間影響的混凝土抗壓強度、應力-應變本構關系及彈性模量等力學性能指標隨混凝土受火溫度、靜置時間、冷卻和冷卻后的養護方式的變化規律,通過對大量試驗數據的處理,給出了相應的擬合回歸公式。According to the traits of flm, semi - numeric and semi - analytic, the symbolic math toolbox of matlab is used to deduce the formula of flm. the deducing procedure shows that it is very convenient to get the analytic solution while facing the complicated geotechnical problem. based on the accomplished research, the following methods in this dissertation is adopted : biot consolidation finite layer method ( bcflm ) is used to analyze the pile - soil - raft interaction system which takes soil consolidation into account
本文假定筏板為剛性,以biot固結有限層方法( bcflm )計算樁?土、樁?樁、土?土之間的彈性相互作用,採用傳遞函數法模擬各樁的非線性工作性狀,樁身採用一維桿單元模擬,同時根據靜力平衡條件,確立了考慮土體固結的樁?土?承臺共同作用分析方法。This paper brings out the mechanics calculating model of the shear model. four factors are considered in the linear analysis of the static behavior of the shear model. they are the parting number of height, the parting number of width, the type of pole and the type of shear diaphragm
本文建立了受剪板式薄壁結構的「肋-板」抗剪單元的力學計算模型,對于該計算模型,主要考慮了四個因素對抗剪單元在線彈性范圍內靜力性能的影響,即桿件規格、受剪板規格、高度方向等分數和寬度方向等分數。4. with the consideration of practical soil - pile interaction, the soil around pile is modeled as a three - dimensional viscous - elastic continuous medium and the time effect of the settlement of single pile is studied. the semi - analytical solutions for vertical displacement of soil and for the relationship between settlement of pile head and time were obtained by laplace transform method and fourier inverse method, and the law of the settlement of pile head varying with time was then analyzed and discussed
考慮樁土藕合作用的單樁沉降時間效應研究從研究空間軸對稱問題的角度出發,將樁周土體建模為三維粘彈性連續介質,更為合理地考慮了靜荷載下樁土系統中單樁與樁周土的藕合作用,分別建立了樁周土體和樁體的靜力平衡方程,並通過拉普拉斯變換、傅立葉逆變換等數學手段,獲得了單樁樁周土體的垂直變形和樁頂沉降在拉普拉斯變換域內的解析解和在時間域內的半解析解,進而分析討論了單樁沉降隨時間變化的規律。This paper analyses mainly viscoelastic properties of conveyor belt about the belt conveyor, constructs finite element discrete models and dynamic equations for parts and system of the belt conveyor, studies thoroughly automatic modeling theory from the static state to the dynamic state of the belt conveyor system including form function of the running routex element division parameter calculation ^ state equation formation automatically and solution of system and so on
本文通過對帶式輸送機輸送帶的粘彈性特性的分析,建立了帶式輸送機各組成部分及其系統的有限元離散模型和動力學方程,詳細地研究了帶式輸送機系統從靜態到動態設計的自動建模理論,其中包括運行線路的形態函數、質點劃分、參數計算、系統狀態方程生成及其方程的求解等。分享友人