設計限值 的英文怎麼說
中文拼音 [shèjìxiànzhí]
設計限值
英文
limiting design value- 設 : Ⅰ動詞1 (設立; 布置) set up; establish; found 2 (籌劃) work out : 設計陷害 plot a frame up; fr...
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 限 : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
- 設計 : devise; project; plan; design; excogitation; layout; layout work; styling
-
This thesis tries to solve the problems in the design and construction of jinping cascade 2 hydropower station. a typical section is selected to analysis seepage, seepage control and fem numerical simulation. the influence of different plans of excavation and support on seepage field of subsurface water and stability of adjoining rock are studied. the homologous support pattern is suggested according to the research results
本文就錦屏二級水電站(一期)深埋長隧洞的設計和施工中面臨的一些問題,選取隧洞的一個典型斷面進行滲流、滲控分析和開挖及支護的有限元數值模擬,從而就深埋隧洞不同的開挖及支護方式對地下水滲流場及圍巖穩定性的影響和所應採取的支護措施等方面進行了探索、研究。Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先,在前人研究成果的基礎上,對錨桿與圍巖的相互作用機理進行研究,利用全長錨固錨桿的中性點理論,從等效均化的角度來考慮錨桿對圍巖的加固作用,並推導了在簡單荷載作用下,含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解,對工程設計有著重要的參考意義;在數值模擬方面,以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎,利用虛功原理推導了接觸問題的有限元方程的計算格式,為開發運用大型商用有限元軟體msc . marc提供了理論根據,也形成了本文的理論基礎:最後,論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例,利用本文所述的接觸問題的摩擦模型理論,對錨桿支護結構的應力場、位移場的變化規律進行了研究,分析了加錨支護對隧洞圍巖應力、變形的影響。With an eye on long - term development and creating larger values for the customers, according to the rule of " reputation first, quality first, customer first ", with comprehensive design - tracking individual service, satisfying the different customers ' requirements, we have won broad customers ' sincere auspice and trust
立足長遠發展,為客戶創造更大價值,全員以"信譽第一、質量第一、顧客至上"為準則,全面推行限時跟蹤設計的個性服務,滿足不同客戶需求,贏得了廣大客戶的由衷支持和信賴。In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test
然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討,提出了考慮地基變形的地基承載力上程計算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎設計規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作,本文以截頭錐模型模擬地基,對地基(巖基)承載力的動測法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢測川的參數:針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論;本文作者根據多年現場載荷試驗的工程實踐,對深井荷試驗裝置的核心部分? ?反力裝置,設計了側壁支撐反力加載系統,該加載系統具有實用、簡便、穩定及安個等優點。Thirdly, resorting to cooperation - competition model of biomathematics, this thesis proposes a new co - evolution model. simulation results are shown to verify its effect and practicabilitv. last, standard methods for optimizing neural netvvorks are easily trapped into local optimization, and unable to adjust the structure of neural networks, thus their application is limited to certain extent
本文主要驗證和設計適應性操作運算元和小生境方法保持群體多樣性的能力,實驗表明兩種方法都能較好地達到目的;利用生物合作競爭模型設計協同演化來動態地改變群體規模,實驗表明該模型是有效的;人工神經網路是得到越來越廣泛應用的學習系統,但是由於學習演算法存在一定的缺陷,如易於陷入局部極值,難以調整網路的結構等,使神經網路的應用受到一定的限制。In the highway blacktop design criterion ( tjt014 - 97 ), four methods are recommended to the value of the modulus of resilience of the roadbed. however, the limitation of the methods induce disconnection between the designing modulus index and the compaction in the process of field construction
盡管現行《公路瀝青路面設計規范》 ( tjt014 - 97 )中,推薦了4種不同方法確定路基回彈模量值,但是由於這些方法的局限性,導致路基設計回彈模量取值與現場施工壓實過程脫節。On the basis of investigations into the progressive yield process and the possible failure modes of rcc gravity dams, the quasi - elasticity design limit state of the ctrtical stability criterion is proposed and the real working state of the dams designed according to the ctriterion is discussed. a check formula using the material strength reducing factor as the safety index and a simplified formula similar to against sliding stability fromula are derived. finally, the corresponding design safety factors are given by using fem calculations with various influence parameters to be taken into account
本文在研究碾壓混凝土重力壩漸進破壞過程和可能失穩方式的基礎上,提出了以準彈性臨界作為穩定臨界準則的設計極限狀態,分析了按該準則設計的大壩的實際工作狀態,導出了以準彈性強度儲備系數為設計安全指標的審查公式以及形式與抗剪斷公式相同的簡化公式,探討了定量計算考慮各種因素影響的相應設計安全系數的合理取值,並與現行規范方法進行了比較Simultaneously, combine with his own work experience, the author gets an advanced detail and general design steps. and then illustrates an actual engineering which is designed with the article ’ s recommendatory method and steps. by combining with the test results, it is proved that the ground treatment result obtains the design requirement and the commendatory method is right, which is able to provide reference value to the engineering
本文首先對加筋土的研究現狀做了詳細的介紹和分析,在此基礎之上,對加筋土地基設計方法做了一定的研究,對地基承載力力設計方法做了對比分析,選擇極限分析法作為本文的推薦方法,並結合作者自身的工作經驗,提出了加筋土地基詳細和全面的設計步驟,然後用一個加筋土地基實際工程為例,採用本文推薦的設計方法和步驟進行設計,並通過現場試驗結果,證明該地基處理達到設計要求,也證明了推薦方法計算的準確性,這對廣大工程師在實際工程操作中有較高的參考價值。The current chinese foundation design code gbj7 - 89 use limit equilibrium theoiy with elastic soil stress distribution to give out bearing capacity design value calculating fonnula and use elastic soil model to evaluate foundation settlement. according to the above theories, code gbj7 - 89 gives the correlative terms. but these do not accord with the practical mechanism of loaded soil below the shallow foundation and the elastoplastic property of natural soil so defects exist
我國現行規范gbj7 - 89將這兩者分開考慮,其計算地基承載力設計值的公式是根據彈性地基中應力分佈及土的極限平衡狀態理論為依據而得出的,求地基的沉降變形時則視土體為彈性,這些理論對地基及土的假設與淺基礎地基的實際工作狀態及天然土體的非線性、彈塑性存在一定的偏差。On the base of codes in 1989, a series of seismic measures are improved in new codes, such as limit of inner - storey drift angle, minimum reinforced rate, column - beam moment magnification coefficient and moment magnification factor at the column base, etc
在89規范的基礎上,本次規范修訂進一步提高了包括層間位移角限值、最小配筋率、柱一梁級差系數等等在內的一系列抗震設計措施。Shanghai xinli battery manufacture co., ltd. to establish in 1994 lately, the precursor is shanghai xinli battery factory lately, the company takes making the alkaline battery alkaline as to predominate the product, various specification, species is basic to cover all serieses of the dry battery, and accept various combination battery of the not standard type of design, to satisfy customer " s demand. xinli battery company lately to have already passed iso - 14000 environment system attestations of iso - 9001 : 2000 international quantity system attestation, the product quantity passes the battery examination center examination of the national light industry bureau and the sgs measurement of the eu ros serieses, the product is qualified. company annually with pass to increase continuously, the extension exports outward and the superior economic specific value service of the underneath brand peony, hongdan, fengdian. etc
上海新立電池製造有限公司成立於1994年,前身是上海新立電池廠,公司以製造堿性電池alkaline為主導產品,各種規格品種基本涵蓋干電池的所有系列,並承接設計非標準型的各種組合電池,以滿足客戶的需要。新立公司已通過iso 9001 - 2000國際質量體系認證和iso 14000環境體系認證,產品質量通過國家輕工業局電池檢測中心檢測以及歐盟ros系列的sgs測定,產品合格。公司每年以不斷遞增擴大對外出口和旗下品牌牡丹紅丹豐電等的最優經濟比值服務于廣大國內外客戶,並得到用戶的歡迎。The gips / gdps series of automatic shut - off valves are safety devices designed to stop the flow of gas when the downstream pressure of the valve reaches a value larger than and / or smaller than the preset operating limit
升壓感應關斷型?與gdps ?降壓感應關斷型?系列自動關斷閥為安全設備,設計當此閥下游壓力達到大於或?和?小於預定操作限度的壓力值時,來中斷瓦斯流動。Because of the large stuff of silicon, complex structure of furnace and expensive cost, computer simulation is a best way to optimize design. in order to study the new heat system, we have calculated the heat zone of 200mm solar cell czsi growth
由於拉晶過程中投料量較大,爐體結構復雜、造價昂貴,所以計算機數值模擬對于優化單晶爐設計是一種重要的工具。本論文用有限元方法對改造后單晶爐的適合的熱場進行了數值模擬。This paper discusses the most suitable design of the homocentric ball capacitor on the condition that the maximum pressure endurance is limited and the puncture field is strong
摘要討論了在限定最大耐壓值及介質的擊穿場強的情況下,同心球形電容器的最佳尺寸設計。A experienced equation which is summarized by many experiments is used to determine the number of mesosphere nerve cell and a sort of new square - sum function of errors is adopted. its characteristic is that weight errors of possible exceptional point is less. accordingly, the effect of errors of possible exceptional point is reduced, which make actual function relation simulation easier
本系統針對bp演算法的局限性,給出了一種優化的bp演算法,採用經過大量實驗總結出的經驗公式來確定隱層神經元的個數,並選取了一種新的誤差平方和函數,該函數的特點是對一些可能的異常點的誤差權值設計的較小,從而降低了異常值誤差帶來的影響,便於模擬出真實的函數關系。In term of the probability of communication system and perturbance theory, the model of the effect of srs to error bit ratio in communication system is established. through the way numerical of simulation, limitations to srs to error bit ration of communication system and input optical power, the number of channel etc are discussed. the obtained conclusion has definitely reference value to the design of practical communication
根據數字通信系統幾率的特性和微擾理論,建立了受激喇曼散射對通信系統誤碼率影響的理論模型,並通過數值模擬討論了受激喇曼散射對系統誤碼率、最大輸入功率和通道數等的限制,獲得了一些對實際光通信系統設計有參考價值的結論。Taking the contact stress, bend stress stiffness and temperature stress as the condition, taking the weight of the kiln tyre as optimization aim function, the redia and the width of the tyre are optimized general optimize methods just consider the affecting of the parameters to aim function, but in fact, structural parameters ( such as structure dimension, interval and so on ), physics and dynamics ( damp factor, conduct factor, friction factor material ' s elastic module strength limits and so on ), which would be changed after used. the difference are called discrepancy robust design ' s basic concept is : all design parameters " discrepancy will affect the aim funct ion and arouse the quality target discrepancy
一般的優化方法,僅僅考慮了參數對其目標函數的影響,而實際情況下有些參數是變化的,產品的結構參數(如幾何尺寸、間隙等) 、物理和力學參數如阻尼系數、傳導系數、磨擦系數、材料的彈性模量和強度極限等的設計值與製造后和使用中的實際值會有差異,這種差異稱為設計變量和噪聲因素的變差。On the basis of cybernetics through forecast roll and pitch of a ship and by adjusting the object ' s space position and keep its horizontal state without limit of actual sea state according to the control rules with the predictive value of ship ' s roll angle and pitch angle
應用控制理論通過預測隨機海浪擾動下船舶的橫搖、縱搖運動的搖角值,按照所設計的控制規律實現在不受實際海況限制的情況下調整船上物體的空間位置,使此物體保持水平狀態的目的。It is set forth that the limit value of lateral deflection is remained to be discussed further
闡述了高層鋼結構水平位移指標設計限值有待于進一步探討。That how to enhance the rational method and countermeasure of the universities construction items design stage cost is studied emphatic, and on the foundation of the concrete example in the universities construction item, the article carries on the science assignment to the design quota of the construction item to the universities using the value engineering, and carries on the overall appraises to three kinds of design to choose the most superior plan using the level analytic method, thus to enhance the cost rationality of the universities construction item design stage
簡要介紹了高校建設項目的建築設計與成本的相關概念和相互關系,重點研究了設計階段合理控製成本的方法與對策,並在分析具體實例的基礎上,利用價值工程對設計限額進行科學的分配,運用層次分析法對多種設計方案進行總體評價來選擇最優方案,從而探討在設計階段(特別是建築設計階段)合理控製成本的有效途徑。分享友人