過度載荷 的英文怎麼說

中文拼音 [guòzǎi]
過度載荷 英文
severe load
  • : 過Ⅰ動詞[口語] (超越) go beyond the limit; undue; excessiveⅡ名詞(姓氏) a surname
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • : 荷名詞(蓮) lotus
  • 過度 : excessive; over; undue; ana-; hyper-
  • 載荷 : load; loading載荷變化 load fluctuation; variation in load; 載荷裝置 load device
  1. By analyzed interactions of combined limit pipe load components, simplified check formula for pipe load strength are put forward and the calculation method of relevant allowable pipe load values based on shell finite element analysis is presented as well

    對組合極限接管分量相互關系的分析,提出了接管驗算簡化公式和以殼結構有限元應力分析為基礎的許用接管計算方法。
  2. Directed against the problem on confirming vertical bearing capacity of large diameter cast - in - place pile in the west of coteau area of yunnan province, the paper, analyses the influence degree of the variety of soil physics and mechanics property in area geology condition on bearing capacity of pile foundation, through 5 piles " loading test ; the influence degree of construction technics on bearing capacity of pile foundation under the influence of every exterior factors ; the influence degree of grouting injection around the pile shaft on bearing capacity of pile foundation

    本文針對滇西山區大直徑灌注樁豎向承力確定存在的問題,進行了5根試樁的靜試驗,分析了區域地質條件下土的物理、力學性質的變化對橋梁樁基承力的影響程;地下水對樁承力的影響程;各種外部因素影響下,樁的施工工藝對樁承力的影響程;通在樁體周圍土中注漿對樁承力的影響程
  3. 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復合板的穿透性能。
  4. Abstract : experiments were made on a ultrasonic machining tool with work - piece adhered to ultrasonic transducer head, to machine micro - holes on hard and brittle materials such as soda glass and si, to study the effects of tool materials , work - piece materials , amplitude , machining load , slurry concentration , tool length and the size of work - piece on machining rate and wear ratio. in this experiment, the micro - tool was made through wedg

    文摘:通以wedg放電加工手段製作微細超聲加工用工具,在採用工件加振方式的微細超聲加工機上對碳酸玻璃、半導體硅等硬脆材料試件進行微孔加工的實驗,來探討在某一特定加工條件下工具材料、工件材料、工件的振幅、加工靜、磨料懸浮液濃、工具長及工件尺寸等重要因素對加工速、工具損耗率的影響,為微細超聲加工技術的實用化提供參考依據。
  5. This article gives the subsistent ability and the analysis result of intensity after repair in the open field airplane composite material structure by research the intensity, rigid and repair problem under a axis compress loads on a typical three stiffened composite laminate which has a penetrability crack ( a scatter damage ) by a shrapnel

    本文通飛機典型復合材料三加筋層壓板結構在被彈片劃開一穿透性切口(離散源損傷)后,在軸向壓縮作用下所產生的強、剛以及修理問題展開了技術研究及探討,給出軍機復合材料加筋板在彈擊後生存力以及外場修理后強恢復分析結果。
  6. In different in terne die travel, the metal flow characterize in warm extrusion forming processes and the affection for the flow of metal stage which made by the difference between the blank bottom altitude and the axial direction limiting size in warm extrusion forming technique have been analysed we have gotten the equivalent strain field and the velocity field and other field variable that the blank in different in terne die travel and the die travel - load curve. at the same time, we have analyzed the contributing factor for the oil pump stator forming process optimized and achieve thereasonable die parameter for the war m extrusion forming finally, the optimized technics parameters were used into pilot production, then the qualified oil pump stator forging were produced, the analog results were compared with those of pilot production

    論文具體分析研究了不同成形工藝程中金屬流動的特點,並對不同凸模行程下溫擠成形程中的金屬流動特點、坯料連皮厚(底部高)與溫擠壓成形工藝中的軸向界限尺寸的差值對金屬變形階段的影響進行了分析,獲得了坯料在不同凸模行程下的等效應變場、速場等場變量及凸模行程-曲線,同時對油泵定子成形程的影響因素等進行了分析,優化並獲得了合理的溫擠成形工藝及模具參數。最後,利用模擬優化獲得的各項工藝參數進行生產實驗,得到實際生產出的合格油泵定子件,並將模擬結果與生產實驗結果進行比較。
  7. By picking up actual load on road of car body, use the electro - hydraulic servo road simulating system and the remote parameter cantrol system to iterate, take the iterating control target as an accelerated speed signal of spindle nose, iterate separately the loading spectrums on different road surfaces and finally merge the iterated results to obtain the loading spectrums for tests in the test bench

    對轎車車身實際道路的採集,採用電液伺服道路模擬系統和遠程參數控制系統進行迭代(迭代控制目標為軸頭加速信號,對不同路面的譜分別進行迭代,最後將迭代的結果合併) ,得到用於臺架試驗的加譜。
  8. By field loading tests and small strain measurement, the result of improving soft soil with cement power - sprayed piles is alalyzed. the author believes that the result is good and composite foundation is able to meet the superstructure ' s requirement for foundation strength and formation

    現場試驗和低應變測試,對粉噴樁加固效果作了分析。從試驗結果來看粉噴樁加固軟土路基加固效果很好,能滿足上部結構對地基強和變形的要求。
  9. A series of tests were performed on the self - made fretting wear test rig to examine the fretting wear of steels, by taking the wear depth of steel wires as a characterization parameter describing the fretting wear in relation to contact load and fretting time. the results demonstrates that the fretting wear depth increases with the increasing of the contact load and fretting time

    結果表明,鋼絲試樣的微動磨損深隨著接觸和微動時間的增加而呈增長趨勢,但由於接觸面積和接觸應力在微動磨損程中隨著接觸和微動時間的變化而變化,使磨損深在不同磨損工況下增長趨勢不同。
  10. The main research is below : ( 1 ) the influence to intensity and rigid with corner angle ( 60, 75 and 90 degree ) of crack and the board axes ( 2 ) do a fem stress / strain and crack growth simulation analysis when the corner angle of crack and the board axes is 60 degree ( 3 ) do a intensity resume analysis for the structure which is repaired with a titanium patch in a mechanical way when the corner angle of crack and the board axes is 60 degree through simulation analysis for three failure criterion, we have : ( 1 ) in 60, damage extend quickly with damage analysis in hashin criterion ; it is slower for analysis in maximum stress or hashin - rotem criterion. ( 2 ) in special term ( physical condition incision, shape or maximum load ) the compression strength of the stiffened plate will decline 45 % ~ 50 % under compression loads

    採用三個不同損傷判據的數值模擬模擬,得到如下結論: ( 1 )在60時,用hashin判據進行的損傷分析,損傷擴展較快;最大應力及hashin - rotem判據進行的損傷分析,損傷擴展基本相當,且較慢; ( 2 )在所給加筋板的物理條件、切口大小及形狀、最大等一定的條件下,該加筋板在壓縮作用下,其壓縮強下降了45 50 ; ( 3 )在本文提及到的機械連接修理方法以及條件下,修理后的結構強恢復能夠滿足戰時要求。
  11. 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,將溫場作為體處理,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。
  12. At first, based on the results of in - situ load tests, the load - settle curves are acquired, and the effects of different reinforcement parameters are presented. these parameters include the linear density ratio ( ldr ) ; the location of the top layer of the geobelt measured from the bottom of the load plate ( u ) ; the different materials of geobelt ; the number of reinforcement layers ( n ) and the distance between the two layers of geobelt ( a h ). these results show that the bearing capacities of the reinforced composite foundation can be improved and the settlement can be reduced

    首先,通現場試驗,獲取了加筋墊層復合地基-沉降曲線,從筋帶鋪設的密、筋帶的首層間距、不同筋帶材料、加筋層數以及雙層筋帶的層間距等幾個方面分析了以上加筋參數對加筋復合地基承力的影響,指出筋帶的存在提高了加筋復合地基的承力,減小了沉降。
  13. Based on the research of several shiplocks, the temperature and stress field of the lock floor is simulated under temperature and gravity loads, where the shiplock floor is built on different foundations, the effect of setting up wide construction joints is analyzed by the nonlinear finite element method

    作者通對多個船閘工程的研究,結合非線性有限元模擬分析方法,考慮重力、溫,計算分析土基和巖基上船閘結構底板預留寬縫施工方法的效果。
  14. In addition, resovling the base for fixing actuator in the part of setting and debugging of whole test bench ; indicating performance of the test bench reliability and the test data is accord with correlative standard and may be taken as the bases of trouble shooting and maintain for tractor hydraulic lift system through testing the hydraulic lifter ' s static performance of tractor newholland 110 - 90. postgraduate : shenggang luan major : mechanism design and theory tutor : prof. bolin mi

    試驗臺的安裝與調試主要是完成加油缸的地基處理,而在試驗部分通對紐蘭110 - 90型拖拉機液壓提升器的靜態性能的檢測,表明本試驗臺性能可靠,所得到的試驗數據滿足相關標準中規定的精要求,可以作為拖拉機液壓懸掛系統故障診斷和預知維修的依據。
  15. Sintered ndfeb has excellent magnetic properties with low price while the strength and toughness are poor which result in poor machinability, and it is easy to be broken. so they can not be used in areas with impact

    但是,這種材料強和韌性差,機械加工困難,應用程中容易掉角開裂,特別是在一些有沖擊振動的領域應用受到限制。
  16. It achieves full test automation from calibrating, running, failure diagnosis and data processing, which establish it an intelligent test system. in the software, a curve fitting program which based on the system ' s principle which can greatly improve the calibration precision and a safl mathematical statistics program for the test data are made

    在試驗系統軟體設計上,結合試驗機原理,採用基於原型函數的動態標定數據曲線擬合提高了標定的精;通對比各種曲軸試驗數據的處理方法,同時考慮在實際運用中的效果,計算機統計採用了疲勞極限統計分析( safl )法。
  17. Using the complex potential method in the plane theory of elasticity of an anisotropic body, a series solution to the stress field of a finite plate containing multiple cracks subjected to arbitrary loads is obtained by means of the faber series expansion, and the stress intensity factors at the crack tips are calculated based on the theories of fracture mechanics. equivalence yield stress is introduced in order to consider the effects of the plastic zones, with which the strip yield criteria is developed in the article so that the effects of structural size and the crack interactions on the stress distribution can be considered accurately. the effects of plate size, crack size and crack distributions on the stress intensity factors as well as the residual strength of the plate are studied detailedly

    採用各向異性體平面彈性理論中的復勢方法,以faber級數為工具,得到了含多裂紋有限大板在任意作用下應力場的級數解,並應用斷裂力學方法確定裂紋尖端的應力強因子;引入當量屈服應力考慮裂尖塑性區的影響,提出基於帶屈服準則的剩餘強分析模型,能夠充分考慮結構尺寸和裂紋之間相互作用對應力場的影響;通數值計算詳細討論了結構尺寸和裂紋之間位置關系對應力強因子和結構剩餘強的影響規律,得到了一系列對工程應用具有實用價值的結論。
  18. Through the simulation of the forming process, we can get the deformations, stress, strain, plastic flowing in sheets and the interface state under impact load and rolling load, the deformation of the sawtooth form and comparing to the initial state, the results above are expressed in computer animated way. and the effect of geometrical ( mainly different form, including 90 degree, isoceles triangle , 75 degree, and 1. 5 high and wide ), material and technical parameters on the bond strength are analyzed, also including the comparison of different sawtooth form. the optimum parameters are got

    對雙金屬復合板成型程進行模擬,從而得到在沖擊和軋輥壓力作用下基板和覆板的應力、應變分佈和塑性流動變形規律,復合后的齒形的變形情況與初始齒形形成對比,以動畫的方式模擬成型程,並分析了不同幾何參數(主要是不同的齒型,其中包括直角齒型、等腰齒型、 75齒型、 1 . 5高寬齒型) 、材料參數、工藝參數對復合強的影響,以及不同齒型的變形對比以及齒型對復合情況的影響,提出最優齒型、最優工藝參數,有效地指導了實驗。
  19. Transient temperature field comes from changes of boundary conditions and the heat which is produced by the concrete chemical reactions with the water during the mass concrete pouring

    由於混凝土澆灌時產生的水化熱和澆築程中熱邊界條件變化而產生瞬態溫場,這種溫場對結構施加時變溫
  20. The force - time curves are then converted to force - displacement curves to calculate the energy associated with different impact phase. the results show that the maximum load of the composites with non plasma treatment filament is low and the absorption is also low in the initial crack phase

    ?位移曲線進行積分,可得到不同試樣在沖擊程中吸收的總能量、裂紋起始區吸收的引發能以及裂紋擴展區吸收的擴展能,從而分析界面粘結強對材料能量吸收能力的影響。
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