本體模量 的英文怎麼說
中文拼音 [běntǐmóliáng]
本體模量
英文
bulk modulus-
Another basic quantity is the bulk modulus k.
另一個基本的量是體積模量K。And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media
以土力學模型為基礎,利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播,採用了顯式差分方法(中心差分法和newmark常平均加速度法結合)和透射邊界,通過比較利用幾種差分格式求解的加速度結果,發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用,分別編制了體波( p波或sv波) 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。Another basic quantity is the bulk modulus k
另一個基本的量是體積模量k 。The main contents are as follows. ( 1 ) filter cloth and the surrounding soil mass are taken as an approximate isotropy in horizontal section, the relationship of stress and strain is studied, the anisotropy is fully considered, the constitutive model of filter cloth reinforcement fly - ash compound is obtained, it is tested with numerous indoor experiments. ( 2 ) the permeable coefficient is introduced into the constitutive relationship of soil mass with relevant seepage theory ( kozeny - carman experience formula ). the test of filter cloth depositing hi the condition of long term seepage flow is done hi the dissertation, the varying regular of permeable coefficient without pressure is presented
本文首先對國內外的研究現狀作了回顧和總結,然後主要針對土工織物加筋粉煤灰復合體的本構關系和計算理論進行研究,主要內容有: ( 1 )將土工織物和周圍土體視為一種近似的彈性非線性橫觀各向同性體,研究它的應力應變關系,充分考慮它的各向異性,得到土工織物加筋粉煤灰復合體的本構模型,然後通過大量室內試驗進行分析驗證; ( 2 )引入有關滲流理論,即柯茲尼-卡爾曼( kozeny - carman )經驗公式,將滲透系數引進到土體本構關系中。The paper aimed at researching the index systems, methodology, and modes of sustainable road transport development evaluation, and established the mathematic modes with several practical indexes such as transport concinnity, road transport resource saving, road environmental and bionomical protection indexes, with which the sustainable development statuses of road development in china are able to individually or comprehensively evaluated
本文重點研究提出了定量評價公路交通可持續發展能力的指標體系、理論方法和具體模型,提出了實用的交通適應能力分指數、公路交通資源節約能力分指數、公路交通環境生態保護能力分指數、公路交通經濟財務發展能力分指數、公路交通安全控制能力分指數等指標計算模型,從這幾個角度能夠逐項和綜合評價我國交通可持續發展狀況。We design several combined photonic crystals models based on the destructive interference theory, which can transfer completely the energy of a signal from one channel to another, or can realize light switching
本論文首次利用干涉相消的原理,設計了滿足一定條件的復合型光子晶體能量轉移模型和光子晶體光開關。First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed
本文介紹了微動損傷的機理和微動疲勞壽命的研究方法;利用ug軟體對燕尾榫聯接結構創建了參數化實體模型;基於ansys軟體平臺求解彈性接觸問題,獲得了榫聯接結構接觸應力及接觸狀態量的分佈;在已有微動疲勞壽命預測模型的基礎上,引入載荷頻率影響因子,對低周、高低周復合載荷作用下的燕尾榫聯接結構進行了微動疲勞壽命的預測,與試驗結果對比表明採用本文提出的方法預測榫聯接結構的微動疲勞壽命是有效的。In the stage of the sun and the moon in sight, azimuth of the sun, the earth and the moon in the spacecraft body coordinate system is simulated. combining the simulated azimuth with the ephemeris of the sun and the moon, the state equation and observation equation are modeled. the initial orbital parameters calculated by least square method are used in orbit state equation to predict spacecraft state and to realize autonomous navigation
在日月可見階段,模擬日、地、月敏感器測量信息,即日、地、月在航天器本體坐標系下的方位信息,結合日月星歷,建立狀態方程及觀測方程,通過最小二乘法得到歷元時刻的軌道狀態初始值,將其代入軌道狀態方程進行自主導航。By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent
最後,本文還對絮凝動力學和絮體結構進行了研究,在前人研究的基礎上,針對高分子絮凝黃河泥沙,對絮凝過程作了一些符合試驗條件的假設,建立了顆粒碰撞頻率表達式,應用了顆粒數量平衡方程,從而建立了絮凝過程的動力學生長模型,模型計算結果與試驗數據對比表明,二者趨勢一致,在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程;對絮體結構的研究中,應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察,將絮體分為絮粒、絮團和絮網三個不同的生長階段,通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體,建立了絮體結構模型,計算得到的模型絮體分形維數基本與試驗中的實際絮體相符,在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。The important meaning in which this direction studied has lain in establishing the connection between the material science of concrete and civil engineering, analyse the strength in terms of material microcosmic or the mesoscopic, have important meaning to understanding, know the essential law of the strength of concrete. this text divides six chapters altogether. chapter one reviewed the pore structure in nowadays domestic and international research current situation, including the concrete examines research, research of the pore structure model and the research current situations of pore structure and strength relation of the pore method, have introduced some most important achievements of structure research of pore ; chapter two narrated much yardstick of the material mesoscopic structure of concrete and principle of examining pore technology of material of concrete, and the commonly used sign parameter in discussedding the pore and material pore of quito of cement and analyse, have explained that the influence factor of mip to the result of study of pore, has pointed out the limitation in mip in the pore structure ; analyse porosity and strength relation development course of model emphatically, and has carried on comparative analysis to the existing model, has pointed out the weak point of the original model ; on the basis of " ing integrate synthetically ", propose concrete pore structure compound body model and pore physical model of systemlex body ; chapter five carried on the corresponding test data to compares to the model parameter appearing in model of chapter four with and analyses, have received k value of the characteristic of strength of matrices of reflecting according to the method to return to analysis, and calculate the influence produced on the strength of concrete in revision that can probed into the content of cement, elastic mould and surface energy, exactness of the inspection model ; chapter six is the conclusion, according to studying the survey this text to some research conclusions of the pore structure and making corresponding prospect to the structure development of pore
第一章回顧了孔結構在當今國內外的研究現狀,包括混凝土測孔方法的研究、孔結構模型的研究及孔結構與強度關系的研究現狀,介紹了孔結構研究方面的一些最重要的成果;第二章敘述了混凝土材料細觀結構的多尺度性及混凝土材料測孔技術的原理,並討論了水泥基多孔材料孔隙分析中常用的表徵參數,也說明了壓汞法測孔對研究結果的影響因素,指出了壓汞法在孔結構研究中的局限性;第三章是著重分析了孔隙率與強度關系模型的發展歷程,並對已有的模型進行了比較分析,指出了原有模型的不足之處;第四章在「綜合集成」的基礎上,提出了混凝土孔結構復合體模型和孔系統的物理模型,並模擬了該模型下由各單體並聯形成的復合體的斷裂過程,最後根據所建模型編制了相應的計算程序,可根據輸入的孔徑分佈與水泥含量等參數,實現混凝土理論強度的計算;第五章對第四章模型中出現的模型參數進行了相應的試驗數據對比分析,根據回歸分析的方法得到了反映基體強度特徵的k值,並從理論上探討了水泥含量、彈性模量和表面能的修正對混凝土強度計算產生的影響,檢驗模型的正確性;第六章是結論與展望,根據研究綜述了本文對孔結構的一些研究結論並對孔結構發展作了相應的展望。( 6 ) in this paper. adopting fea software ansys to simulation and analysis the al ecap process. in order to spread out studying of ecap in the future. the results show : die comer angle, the radius of round angle, the friction coffience of workpiece and die, the properties of die ( elastic modulus, possion ratio ) et al, have some degree impact on the deformation of materials
( 6 )採用有限元( fea )分析軟體ansys對al的擠壓過程進行ecap模擬與分析,為后續研究工作做好鋪墊,分析結果表明:外切角、圓角半徑、試樣與凹模之間的摩擦系數、凹模本身的特性(如彈性模量、泊松比等)等等,對材料的變形量都由不同程度的影響。In this paper, the geogrids structure, the flexible beams strucrure, the geogrids and flexible beams structure are analysed with algor, and it is used to analys the influence of some paramenters. such as the modulus of structural layers, size of structure, place of structure, non - uniform settlements. and the contrast of the three structures is analysed in this paper. we can see the reasonable size and reasonable place through analyse. the analyse of the test road show that the structures worked well for about two years and the reflection cracks have not be found
本文首先藉助algor有限元軟體對土工格柵處治結構、柔性枕梁處治結構及土工格柵與柔性枕梁復合結構進行了力學分析,包括各結構層模量影響規律分析,格柵及枕梁尺寸、位置影響規律分析,路基不均勻變形影響規律分析,各種處治結構間的對比分析等。通過分析,得出了各結構的合理尺寸及合理的布設方案。In this paper, the effecting factors such as slip mixture, temperature, working mould quality and technology parameters on the ceramic green ware embryonic forcefulness were a nalyzed by analyticity hierarchy process technology
本文對直接影響坯體質量的挺形性因素:泥漿配方、泥漿溫度、工作模質量和工藝參數,採用美國薩迪教授的層次分析技術,進行各種復雜因素的權重排序分析,為「九五」相關項目的優化原始數據和提供原始數據奠定基礎。Abstract : in this paper, the effecting factors such as slip mixture, temperature, working mould quality and technology parameters on the ceramic green ware embryonic forcefulness were a nalyzed by analyticity hierarchy process technology
文摘:本文對直接影響坯體質量的挺形性因素:泥漿配方、泥漿溫度、工作模質量和工藝參數,採用美國薩迪教授的層次分析技術,進行各種復雜因素的權重排序分析,為「九五」相關項目的優化原始數據和提供原始數據奠定基礎。It ' s reflected in four aspects : teaching target, teaching resources, teaching tactics and teaching assessment. the determination of teaching contents is the emphasis, and the teaching contents is determined by teaching target ; the collection of material ( teaching resources ) is the difficulty - compose a script after making a careful study of the teaching material, then collect the material according to the script ; teaching tactics are embodied by the determination of information form and by the way in which the contents accord with the form so as to get the best result in teaching ; making teaching assessment guarantees the quality of the software. in the early making period, the original model method of system engineering is adopted to produce small experimental courseware and a further revision and improvement are made in consultation with some experts. also an agreement on the demand of the software system is reached. in the later making period, the software is appraised by experts from its stability, serviceability reasonableness of construction, and the scientific nature of contents, then it is put into use as an experiment. finally those who use it are required to fill the teaching feedback table
教學設計理論是靈魂,它貫穿于整個軟體編制過程,從四個方面來體現:教學目標、教學資源、教學策略、教學評價。教學內容的確定是重點,根據教學目標來確定教學內容;素材的收集(教學資源)是難點,在鉆研教材的基礎上撰寫腳本,根據腳本去收集素材;教學策略體現在信息形式的確定,以及如何使內容與形式協調一致,達到教學最優化的效果;而進行教學評價是本軟體質量的保證,在軟體的製作的初期,採用系統工程論的原型模型法,開發出實驗性小課件,在徵求專家的意見的基礎上進一步修改、完善、確認軟體系統的需求併到達一致的理解,在軟體製作的後期,再請專家從軟體的穩定性、可操作性、結構的合理性、內容的科學性等方面進行鑒定,最後將軟體作實驗性投入使用,再讓實驗對象填寫教學反饋信息表。In this study, the model emphasizes particularly on time series of geological entity and at the same time it realizes the integration of the spatial model and the attributive model by integrating complicated spatial and attributive character of forest resources. program is realized by matlab. the ann toolbox of matlab established many tool functions based on ann theory
本項研究中,基於gis的神經網路預測模型主要側重的是地理實體數量時間結構序列,模型結合森林資源復雜的空間和屬性特徵,不僅使用了gis關系數據庫中的屬性時間序列值,同時也使用了一定的空間模型,實現了空間模型與屬性模型的有效結z 、口0在程序的實現上採用m八tlab開發環境,其中的神經網路工具箱以人工神經網路理論為基礎,構造了網路分析和設計的許多工具函數。The 60mn hot die forging hydraulic press, with weight 30 % reduction of the main body compared with the traditional hydraulic press because of plate frame structure designed through new idea by adopting transverse pre - tightening technology mainly embodying the design and manufacturing level of the heavy - duty hydraulic presses at modem times, the first one with independent intellectual property right designed by china itself and a transverse pre - tightening plate - frame hydraulic press with max. tonnage in the world at present
摘要60mn熱模鍛液壓機,採用橫向預緊技術,創新設計了板框式本體結構,與傳統液壓機相比,機械本體重量減少了30 % ,採用的主要技術集中體現了當代大型液壓機設計和製造技術水平,成為中國自行研製的具有自主知識產權的首臺,並且也是目前世界上最大噸位的橫向預緊板框式液壓機。In the filtering sub - system using ontology - based profile, we introduce an approach to construct the user ’ s profile based on ontology. ontology provides a formal way to describe the semantics relations between the concepts by using the means of concept - properties model. two algorithms have been designed to calculate the semantic similarity between feature vector and the profile, which have been impoved according to the evaluated results
在基於本體模板的信息過濾子系統中,本文以本體的形式來描述用戶的需求模板,利用本體中的概念關系模型來體現概念間的語義關聯關系,並設計了兩種計算文本特徵向量與本體模板語義相似度的演算法,並根據實驗結果對這兩種演算法進行了改進。( 4 ) according to the settlement calculation method in this paper, the main influence factors, such as displacement ratio, modulus of cushion, modulus of pile, and coefficient of subgrade, are discussed in this paper and the curves that reflect the relationships of the composite modulus and the influence factors have been achieved
( 4 )根據本文建立的沉降計算方法,對復合地基模量的主要影響因素:置換率、褥墊層彈模、樁體模量、基床系數等進行探討,最後得出了它們和復合地基模量之間的關系曲線。At present, there are many research methods on pile groups subjected to lateral loads at home and abroad. however, it is still far from meeting the demands of pile groups appliances in engineering. using the finite element software ansys, the article calculates and analyses the behavior capacity of pile groups first
本文首先運用目前國內外應用較為廣泛的有限元軟體ansys對群樁基礎進行有限元分析:分析了橫向荷載作用下群樁的樁距、樁數、樁徑、樁長、土體模量等因素對群樁效應的影響,得出了一些有益的結論。分享友人