碰撞變形的 的英文怎麼說
中文拼音 [pèngzhuàngbiànxíngde]
碰撞變形的
英文
collision deformed- 碰 : 動詞1 (一物體突然接觸另一物體; 撞擊) touch; bump 2 (碰見; 遇到) meet; run into 3 (試探 ) tr...
- 撞 : 動詞1 (猛然碰上) collide; strike; knock; bump against; run into 2 (碰見) bump into; run into;...
- 的 : 4次方是 The fourth power of 2 is direction
- 碰撞 : 1 (猛然碰上) collide; run into; knock against; run foul of; crash 2 [物理學] collision; impact;...
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Based on the principle of mechano - chemistry, the strong shock and crashing mechanical force produced by ls - 250 pulverizer can act to the surface of superfine carbon and white carbon particles during the process. the result of the experiment indicated that distortion and amorphism change occur to the surface crystal lattice of carbon particles, and the phenomena are prick up as the action time of mechano - chemical force
依據機械化學原理利用ls一250型流能粉碎機高速旋轉的動齒工作過程中產生的強烈沖擊、碰撞機械力,使其作用於超細石墨及白碳黑顆粒表面,檢測表明,石墨粒子表面晶格發生畸變及無定形化,且隨著機械力作用時間的延長而加劇。This thesis studies each structural layer ' s feature : ( 1 ) structural layer of basement : it is a paleozoic folded basement, whose tectonic deformation and magma intrusion is fiercely, and it is affected by the early hercynian tectonic movement and related to the underthrust and closure ( c1 ) of zhungaer ocean basin and the areal pressing of continents ( c2 - 3 ) ; ( 2 ) structural layer of permian : due to the regional extending and fault depression role in mid - hercynian, it occurred to the combinations of structure and magma in santanghu basin and it ' s periphery area, such as a - granite ' s stock, batholiths and diabase ' s dike. there are many fault depressions possible
按照不同構造層,研究了各構造層的構造特徵:基底構造層:受早海西期構造作用的影響,與準噶爾洋盆俯沖閉合、而後陸-陸碰撞的區域擠壓構造作用有關,為一構造變形和巖漿侵入活動強烈的古生代褶皺基底。二疊系構造層:受中海西區域性伸展斷陷作用的影響,盆地及其周緣地區發育與伸展構造有關的構造-巖漿組合,如呈巖株、巖基狀侵位的a型花崗巖以及呈巖墻狀侵位的輝綠巖等。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 simulation result showed that : variety of impact acceleration field has great influence on lower extremity injuries ; using safety belt has prominent efficiency to reduce lower extremity injuries ; using knee bolster with lower stiffness can reduce the loads to femur, knee and tibia ; the right foot placed on the brake pedal will increase the risk of foot injury evidently ; variety of footwell intrusion induced by impact deform of car forepart will influence lower extremity injuries severity to a certain degree
模擬結果表明:加速度場的改變對下肢損傷有非常大的影響;佩戴安全帶對降低下肢損傷風險有顯著的作用;膝墊採用較低剛度的材料可以較好地降低大腿,膝部以及脛骨的受力和損傷;右腳放在剎車踏板上會使得右腳損傷風險明顯加大;車體前部碰撞變形產生的腳艙侵入量對人體下肢的損傷會產生一定的影響。Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method
其主要功能是:當車輛滾翻時, rops能刺入未凍土壤而阻止車輛的進一步滾翻,降低滾翻的車輛對系著安全帶司機軋傷的可能性;保證rops在碰撞和沖擊變形不大的地面(如凍土、混疑土上、巖石)時,能具有相當大的抗連續沖擊能力;當車輛已經處于顛覆狀態時,已經變形的rops應能支撐住整車。落物保護裝置(簡稱fops ) ,其構件的布置方式要能遮蔽墜落的物體(如,樹木、巖石等) ,以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定,對大型推土機傾翻和落物保護裝置進行研究,在理論分析的基礎上,通過建立rops fops的力學分析模型,推導彈性、彈塑性階段rops fops變形的計算公式,建立一套可行的rops fops的非線性有限元分析計算方法。And apatite. by these analyses and comparison with general granite both in china and the world and with the granite in other au or cu belt in china, the characteristics of the granite in this area are concluded as follows. it belongs to magnetite - i or syntectic granite and has crust - mantle mixed characteristics ; it was formed mainly by crystallization differentiation of melting magma and multiphase varied intrusion ; the degree of differentiation evolvement is not high ; the granite and its enclaves p. re congenetic ; the range of temperature is about 500 - 700, the range of pressure is about 2. 50 gpa - 4. 35 gpa, and the range of oxygen fugacity ( lg fo2 ) is - 15. 53 - - 14. 00 ; most granite bodies formed before the collision of plates, and few formed after the collision of plates
通過對測試數據的分析與綜合研究,並同中國和世界一般花崗巖類以及中國主要金、銅成礦巖體的花崗巖類進行對比,得出本區花崗巖類巖石具有以下特徵:屬磁鐵礦-型或同熔型花崗巖,其巖漿物質具殼幔混源特徵:主要由熔融態巖漿經結晶分異作用,通過多期變速上侵而形成;其分異演化程度較低;寄主巖基和包體具有同源性;巖石的形成溫度范圍約為500 - 700 ,壓力大約為2 . 50gpa - 4 . 35gpa ,氧逸度值1gfo _ 2為- 15 . 53 ? 14 . 00 ;該巖帶主要形成於板塊碰撞前消減的活動板塊邊緣期,為燕山至喜馬拉雅早期的大陸邊緣火山弧環境的產物。The bottom edges of the endplates are mated to another winglike device, the lower main plane, which in turn is attached to the rear crash structure ? a carbon fibre cone bolted onto the gearbox
終板末端邊緣被設計成與另一個翼狀地設備相配合,這個翼狀設備是一個較低的平面,附著在尾部碰撞結構上? ?變速箱上面的碳纖維錐形螺釘。Therefore, how to ensure the simulation precision and accuracy is crucial to engineering applications. further improve the automated theory, and continually enhance the accuracy of simulated body structure is the focus of research on anti - collision simulation
基於一步成形逆有限元方法可以對車身結構件的成形厚度和塑性應變進行預示,改進這一方法,並應用於車身結構件碰撞計算模擬中。The cleaning cars has seven major characteristics : 1, the vehicle design aesthetic appearance generous, simple, flexible cleaner compact cab from the sanitation workers in the rain, snow and inclement weather operations headaches ; 2, jia lu cleaning electric car gearbox is my companys patented products, latin america is characterized by heavy goods, light down - climbing and extended battery life ; 3, jia lu electric bicycle bridge cleaning car brake, the company is a patent product, is characterized by simple structure, convenient operation, maintenance easier, better braking performance ; 4, good deer electric car cleaning dustbins with low human workers the high - school, so that sanitation workers can easily handling, reversing a good sight, and reduce incidents, high safety factor ; 5, good deer electric cleaning trucks advanced electric power putter as a dump, the sanitation workers to reduce labor intensity, is characterized by fewer power failures, maintenance - free ; 6, jia lu electric vehicle using toughened glass cleaning cars, advance reversing have good vision, difficult to scratch and ensure the safety of sanitation workers ; 7, good deer by external electric car cleaning plate, a fiberglass liner internal, external characteristics : hinge not on the plate yi loose, often not dump deformation and withstand collisions, the internal use of fiberglass liner, not rust, corrosion, wear after the liner can be replaced, maintaining low cost
該保潔車有七大特點: 1 、該車外型設計美觀大方,操作簡單靈活,明凈小巧的駕駛室免除了環衛工人在雨雪等惡劣天氣作業時的煩惱; 2 、佳鹿電動保潔車變速箱是我公司的專利產品,特點是拉重貨,輕松爬坡而且省電,延長電瓶的使用壽命; 3 、佳鹿電動保潔車后橋雙輪制動,是我公司的專利產品,特點是結構簡單,操作方便,維修容易,制動性能好; 4 、佳鹿電動保潔車超低的垃圾箱符合人體工程學的高度,使環衛工人能輕松地裝卸,倒車時具有良好的視線,減少事故的發生,安全系數高; 5 、佳鹿電動保潔車採用先進的電動推桿作為自卸動力,減輕了環衛工人的勞動強度,特點是故障少功率大,免維護; 6 、佳鹿電動保潔車整車採用鋼化玻璃,前進倒車都有良好的視線,不易劃傷,保證環衛工人的安全; 7 、佳鹿電動保潔車外部採用鋼板,內部採用玻璃鋼內膽,外部特點:鉸鏈在鋼板上不易松動,經常自卸不變形,經得起碰撞,內部採用玻璃鋼內膽,不生銹、不腐蝕,磨損后內膽可以更換,維護成本低。In actual engineering problems such as metal forming, structure crashworthiness et al., there are a great number of interface problems with elasto - plastic large deformation. when such large deformation or distortion is solved by finite element method, it must remesh process must be developed to get the less accurate numerical result
在金屬成型、結構碰撞、穿甲等工程領域存在大量的彈塑性大變形接觸問題,用有限元法模擬這些過程時,由於變形畸變的存在,往往需要採用網格重劃分才能得到較為準確的計算結果。And there is a growing interest in the development of meshless methods as the meshless characteristic has distinctive advantages to deal with high - speed impact, industrial forming, extremely large deformation, fracture and fragmentation problems, etc. it offers the tremendous value in theory and potential in industrial application
無網格方法是在近幾年迅速興起的一種數值分析方法,由於無網格特性對高速碰撞、超大變形、斷裂破壞等問題的分析具有明顯的優勢,對其的研究方興未艾。The ansys, a kind of fea program, was used to build model of small carriage. the procedure of gantry beam bump with secondary beam of bridge was reappeared by running nonlinear calculation and loading program which was written by apdl program language. the closest deforming result was gotten, and the deforming of main beam, secondary beam and end beam and inner stress distribution status were calculated
採用大型三維有限元軟體ansys對該起重機以及小車架等進行了建模、應用apdl語言編寫加載程序、進行非線性計算,再現龍門橫梁與起重機副梁碰撞過程,最後得到與實際變形結果最接近的一種狀態,得出起重機橋架主梁、副梁、端梁的變形以及其內部的應力分佈情況。By analyzing the differentiae of the total cross sections ( tcs ), the differential cross sections ( dcs ), the partial wave cross sections ( pcs ), the change patterns of the cross sections and the influence on the cross sections because of the var iations in the mass of systems and the relative kinetic energy of incoming atoms for symmetric isotopically substituted systems he, ne, ar, kr, xe - h2, d2, t2 have been obtained. in this paper, we use the tang - toennies potential model for the inertia gas atoms - h2 systems, the murrell - sorbie potential surface with five parameters for the molecules h2, d2, t2. for the inertia gas atoms - d2, t2 systems, we use the same potential surface with the inertia gas atoms - h2 systems
通過分析he 、 ne 、 ar 、 kr 、 xe ? h _ 2 、 d _ 2 、 t _ 2各碰撞體系在總截面、微分截面和分波截面等方面的差異,總結出在h _ 2分子的對稱同位素替代情形下惰性氣體原子與h _ 2分子體系碰撞截面的變化規律;通過比較he 、 ne 、 ar 、 kr 、 xe ? h _ 2 、 d _ 2 、 t _ 2各體系在碰撞總截面、微分截面、分波截面等方面的不同,詳細討論了同位素替代碰撞體系中體系約化質量及入射原子的相對碰撞能量的變化對碰撞截面的影響,得出了這種影響的規律性。Typical accident - causing " theories includes heinrich " s domino " s theory, its development by bird, adams and other people, progress of which is that it is deficiencies of management system that are the root cause in accident causation sequence. this is author " s idea resource and main method to produce the water traffic accident - causing theory. in addition, uncontrolled transferring of energy theory, applies widely in safety management scheme for water traffic ; human error accident model can be used to analyze causes of collision accident and to take preventive measures ; perturbation theory and multilinear event sequencing method is a very useful investigation method to water traffic accidents
有代表性的事故致因理論有海因里希因果連鎖理論以及博德、亞當斯等人對該理論的發展,這些發展的主要進步是突出了管理缺陷是事故因果連鎖中的基本原因,是本文分析和發展水上交通事故致因理論的主要思想來源和方法論;能量意外轉移理論,廣泛的應用在水上交通安全的各項具體管理制度中;人失誤事故模型能用於指導對碰撞事故的原因分析和預防;動態變化理論及多線性事件連鎖論對指導事故調查是較好的分析方法;軌跡交叉理論雖然以獨立的理論形式存在,但本文認為其實質仍然是因果連鎖理論的發展。Reconstruction of the traffic accident based on deformation of the key points
基於關鍵點變形的汽車碰撞事故再現Compared with any vibrating systems involving normal impacts, an oblique - impact vibrating system features not only the non - smooth characteristic of impacts, but also complicated dynamics owing to the relative tangential velocity and corresponding friction between two colliding objects
斜碰撞振動系統不但具有正碰撞振動系統力學狀態的非光滑特性,還由於相對切向速度和摩擦引起碰撞物體的切向變形,因而具有更大的研究難度。Based on researching and developing intrinsic character of fixed direction hulls, this paper develops and proves the property which make it can be apply to collision detection in complex environment and resolves the problems about intersection tests between bounding volumes, updating bounding volumes after rotation and updating bounding volume hierarchy after deformation
本文在充分研究了固定方向凸包的固有特性的基礎上,開發並證明了它適用於復雜環境中軟體碰撞檢測的性質,並著重解決了包圍盒間的相交測試、對象運動后包圍盒的更新、對象變形后包圍盒樹的更新等問題。In order to reduce the losses suffered from collision between passenger trains, a new design method for the car body structure of motor car and trailer is advanced. car body structures are made up of three parts with diffferen tstiffness, by carefully designed. the parts of the front and the end are the wea kstiffness structure to absorb energy through plastic deformation in the collision. the middle part, where only elastic deformation occurs, is an elastic deformati on structure with strong stiffness. as the passenger train runs normally, car body structure measure up to regulation of intensity and stiffness in the standards
為了減輕客運列車碰撞事故造成的損失,實現被動安全保護,對組成列車的動車、客車車體結構提出了新的設計方法,重新分配車體各部分剛度,設計出具有合適吸能結構的耐沖擊車體,車體結構均按前、中、后三種縱向剛度設置,前後兩部分為可以產生塑性變形的弱剛度吸能結構,中間部分為僅產生彈性變形的強剛度彈變結構。Even if qgp is formed, it can just exist for a very short period of time and then decays into final state hadrons at the end of the expansion and the cooling of the system. the initial state information may be damaged by the final state interactions during the evolution process
在相對論性核?核碰撞中,即使qgp已形成了,也只是在碰撞過程的極短瞬間存在,隨著系統的膨脹與冷卻,它很快就演化為實驗觀測到的各種末態粒子,最初存在的信息也可能在演化過程中由於各種末態相互作用而變得不清晰了。We can make full use of the ability of absorbing energy when the high hardness resin is smashed into pieces, thus the strain energy accumulated during the earlier stage of the collision is sent out in the way of material essential failure, instead of the recovery of deformation as the other materials do
充分利用大硬度樹脂在碰撞過程中的破碎來吸收碰撞能量,使其在碰撞初期積蓄的應變能以材料發生本質性破壞的形式釋放出來,而不象其它材料以恢復變形的形式釋放。分享友人