鬆弛強度 的英文怎麼說
中文拼音 [sōngchíqiángdù]
鬆弛強度
英文
relaxation resistance-
This article comtined the practice of the projtct of jiaojiang bridge and analyzed strand wire with high strength and low laxation, the anchorage system, the tentioned technice in the construction, and the principle of anchorage
摘要本文結合椒江大橋工程實踐,分析了國產高強度低鬆弛鋼絞線和預應力錨固體系,在施工中的張拉工藝、錨固原理。High strength low relaxation hot - dip galvanized steel strand for prestress
高強度低鬆弛預應力熱鍍鋅鋼絞線By successful solution of non - linear magnetic fields and revision of the program, we can reach following conclusions : in the computation of nonlinear magnetic fields, if iteration method is used, under - relaxation is necessary when amending the permeability distribution in soft magnetic materials ; and when < wp = 5 > calculating the equivalent current density in permanent magnets, under - relaxation is not a necessity ; when searching for permeability values by interpolation method on the demagnetization curve of soft magnetic materials, if a fixed saturation point is set, around this point an abrupt change of permeability values will be obtained ; this sudden change may cause a little problem in the smoothness of magnetic field distribution ; because the magnetic circuits of microwave tubes are too complicated, in the author ' s view, to describe the working state of a magnet system, the working points of magnets can not do it properly but average energy production of magnets will serve ; as to indicate the quality of a magnet system design for microwave tubes, the efficiency of magnetic energy utilization will be a very good criterion
由此得出結論,在非線性磁場計算中:採用迭代法的情況下,在各迭代循環之間進行磁導率修正時,一個欠鬆弛迭代過程是必需的;對永磁體中的等效電流修正時可以不作欠鬆弛迭代;在純鐵的磁化曲線上指定某一個固定的磁感應強度為磁飽和值,會使得插值求出的磁導率在該磁飽和值附近有一突變,這一突變對計算結果中磁場分佈變化的光滑性稍有影響。在微波管磁系統設計中,由於微波管磁路比較復雜,作者認為磁體的工作點並不能很好地反映磁體的工作狀態,而採用平均磁能積為衡量磁體工作狀態的標準更加符合微波管磁系統的實際情況;要表示磁系統設計好壞的程度,則用磁能利用的效率為標準更好。In other words, the process of analyzing relaxation zone related to one safety factor can also be regarded as the process of searching potential slide surface related to the same safety factor. elastic wedge model is used for analysis of relaxation zone of cutting homogeneous slope. on the basis of elastic plane - strain theory, the relaxation zone can be calculated according to mohr - coulomb or drucker - prager law and single tension intensity principle which are both related to one safety factor after three - dimensional stress field of the cutting slope is got
提出均質邊坡開挖鬆弛區可以用彈性理論中的楔形體理論分析,在平面應變問題的基礎上得到開挖坡體的三向應力場之後,可運用考慮安全儲備后的強度條件(主要為摩爾?庫侖或德魯克?布拉格強度準則和單軸抗拉強度準則)解析坡體分步開挖過程中的鬆弛區范圍,給出了具體的計算步驟,並通過算例較詳細地說明了操作過程。The following items and data analysis are measured on the second stage surgery : ( 1 ) the area of the expanded skin. ( 2 ) comparison with the rapid and the conventional expansion. ( 3 ) tension of skin in vivo
在二期手術時進行如下的實驗檢測和數據分析: ( 1 )測量擴張皮膚的面積( 2 )常規擴張和快速擴張( 3 )在體皮膚的張力( 4 )皮膚的即時回縮率( 5 )組織學檢查( 6 )皮膚的膠原含量( 7 )皮膚的生物力學特性,包括強度、應力應變關系、應力鬆弛、蠕變。At the same time, the mathematical models of the electric field and the flow field distribution were established from the theory of electrostatic enhancement of heat transfer. employed finite differential method and over - relaxation iteration method, according to certain boundary conditions in the wire - plate electrode space, the electric field and the flow field in the wire - plate space were numerically simulated under different initial velocities of r11 stream and different magnitudes of applied voltage. the calculation results agreed with theoretical analysis satisfactorily
同時從靜電強化換熱理論出發,建立了表徵線板電極間的電場和流場分佈的數學模型,並根據線-板電極間的邊界條件,利用有限差分法和超鬆弛迭代法,分別就不同氣流初速度和不同外施電壓的情況下,對線-板空間的電場和流場進行了數值模擬,計算結果與理論分析基本一致。Using biomechanics methods, through the study of the influence of different injection and maintain period on the expansion efficacy and shrinkage rate of skin, a rapid expansion method with relatively big expansion area is proposed ; biomechanics analysis in vivo is been made on the expanded skin ; comparing the biomechanics property in vitro of the rapid expansion and conventional expansion with different maintaining times, the parameters such as strength, stress - strain relationship, stress relaxation and creep which reflect the characteristic of the expanded skin have been obtained ; making the research of the expanded skin ' s biomechanics changes at different stage after grafting, the long - term and short term diversified regular has been obtained ; making experimental study and discussing the changes in the microcirculation and vessel structure of exceedingly expanded shin, the relationship between survival length of flap and the changes has been gotten
本課題旨在用生物力學的方法通過動物實驗來研究不同注水擴張期和維持擴張期對皮膚擴張量和皮膚回縮的影響,探討有效獲取較大的擴張皮膚面積的快速擴張方法;對擴張皮膚進行在體生物力學特性分析;比較了快速擴張和常規擴張在不同維持期的皮膚離體生物力學特性,得到離體生物力學各參數,如強度、應力?應變、應力鬆弛、蠕變等;為全面了解擴張皮膚在移植后的近期和遠期的變化規律,做了擴張皮膚移植后不同階段的生物力學變化的實驗研究;探討了不同擴張量時皮膚的微循環變化和血管結構變化與皮瓣存活的關系。A gray prediction model of autofrettage residual stress relaxation in even temperature field
穩態溫度場下自增強殘余應力鬆弛的灰色預測Low - relaxation prestressed steel wire is one kind of high degree of strength steels, and it is well used in construction industry. this paper based on the product technics, analysis the electric control system in detail. this thesis focuses on the control of the temper temperature, which is the core technics parameter
低鬆弛預應力鋼絲是一種很有前途的高強度建築用鋼材,本文根據低鬆弛預應力鋼絲穩定化處理生產線的工藝要求,對其電氣系統進行了全面、細致的分析,對重要的工藝參數?回火溫度的控制進行了詳細討論。Abstract : the change in strength, plasticity and relaxation rate of pc steel strand before and after stabilizing has been analyzed by means of fracture and stress relaxation tests. the effect of treatment parameters and tensile stress on the properties was obtained and optimum parameters of stabilizing treatment were also proposed
文摘:通過對預應力( pc )鋼絞線穩定化處理及隨后的破斷、應力鬆弛試驗,分析了處理前後強度、塑性、鬆弛率指標的變化趨勢,得出了工藝溫度、張應力對性能指標的影響規律,進而提出了穩定化處理的最佳工藝參數。In this paper, the relaxation resistance at high temperature of the nitinb alloy and its recovery characteristics with various constrains were studied, subsequently the mathematic model for the strength of the nitinb pipe connector was proposed to investigate the temperature dependence of the strength of the connector, and optimal design for the pipe coupling was brought forward
本文主要研究了nitinb合金高溫下的抗鬆弛性能,以及nitinb形狀記憶合金在各種約束下的回復特點,然後利用固體力學知識,建立了nitinb管接頭系統強度的數學模型,研究了管接頭系統強度隨溫度變化的規律,並對管接頭進行了優化設計。The relaxation resistance of the nitinb alloy affects the strength of the nitinb pipe coupling at high temperature, so that the relaxation experiment at various temperatures and various initial stresses was preformed to investigate the relaxation resistance of the nitinb alloy. the results show that nitinb alloy has good relaxation resistance in the temperature range 300 ~ 400c and the initial stress range 260 ~ 360 mpa, therefore the nitinb pipe coupling can work safely under the condition of temperature above 300c and initial stress no more than 360mpa
Nitinb合金的抗鬆弛性能必將影響nitinb管接頭的高溫強度,於是首先對nitinb合金在不同溫度不同初始應力下的抗鬆弛性能進行了研究,結果表明:溫度在300 400 ,初始應力在260 360mpa時, nitinb合金抗應力鬆弛性能良好,用其制備的管接頭能在溫度不超過300 、應力不超過360mpa的條件下安全地工作。As the time microscale factor in fast transient high - strength heating or cooling can not been ignored, heat relaxation time is introduced. based on hyperbolic heat conduction equation and kinetic equation added inertia, theoretical analysis and study of stress diffusion and transformation in heat impact process were developed
考慮到快速高強度加熱或冷卻帶來的時間微尺度因素,引進熱鬆弛時間,以雙曲線型熱傳導方程和考慮慣性力的運動方程為基礎,對熱沖擊過程的應力傳播與變化規律進行了理論上的分析和研究。Experimental research on strain relaxation of high strength bolts in end - plate connections
鋼結構端板連接高強度螺栓應變鬆弛的試驗研究分享友人