等變應力 的英文怎麼說
中文拼音 [děngbiànyīnglì]
等變應力
英文
uniformly varying stress-
Based on the simulation model theory of temperature and stress fields presented in this article, a large simulating program for high rccd has been developed, which can numerically simulate all kinds of temperature control measures, including water pipe cooling, heat insulating in winter, reducing place temperature of concrete, spraying water brume, and long interval over - watering surfaces overflowing in flood season.
基於本文提出的溫度場和徐變應力場模擬模型理論,編制了高碾壓混凝土壩的三維有限元模擬計算程序,在程序中考慮了各種溫控措施的數值模擬,包括:水管冷卻、冬季保溫、降低混凝土的澆築溫度、夏季混凝土表面噴水霧、施工汛期壩頂面過水等。This paper simply introduces the device of on - line monitoring for the thrust of the rotating maching, then discu ed the finite dement analyses on the on - line monitoring elastic dement for measuring thrust in detail, in order to develop the performance of the se or and the device, we calculated the distribution of the stre 、 strain 、 axial di lacement in the elastic element using the finite element method when the axial forces f = 3 104n, the result is very satisfied
簡單介紹大型旋轉機組軸向力在線監控裝置,然後詳細介紹軸向力測力彈性元件的有限元分析,為了提高所研製的測力傳感器的性能,採用有限元方法計算了彈性元件在軸向力f = 3 104n時的應變、應力、靈敏度及軸位移等的分佈情況,分析結果表明:所設計的測力傳感器完全符合廠方的要求及儀表性能指標。In this article, according to heat conduction theory, elastic creep theory and finite element theory, the temperature field and creep stress field in the arch dam during construction and operation are simulated and analyzed by means of three dimensional finite element relocating mesh method, and the distribution law of the temperature field and creep stress field in the arch dam during construction and operation are systematically studied, and according to the construction process of concrete arch dam, the effect of lamination placement, construction interval, elastic modulus change, thermal insulation change, surrounding temperature change, concrete creep and autogenous volume change on thermal stress in the arch dam are also considered
論文根據熱傳導理論、彈性徐變理論及有限元理論,用三維有限元浮動網格法對拱壩施工期和運行期溫度場、徐變應力場進行了全過程模擬分析,較為系統的研究了混凝土拱壩施工期和運行期溫度場、徐變應力場的分佈規律,在分析中按照混凝土拱壩施工過程,考慮了混凝土分層澆築、施工間隙時間、彈模變化、絕熱溫升過程、環境溫度的變化、混凝土徐變、自生體積變形等因素對壩體溫度應力的影響。Effective stress and strain in finite deformation
有限變形下的等效應力和等效應變問題The stress fields in locking hooks is changed periodically when the train is passing, so the fatigue design criteria are used to check the stress
本文研究了各個載荷工況下,鎖閉鉤中的最大等效應力與車輛作用載荷變化的關系。The correction of the method of equivalent cycle number
非穩定變應力下疲勞強度計算的等效循環次數法的修正The equivalent effective stress - strain curve of pure torsion was five - six times longer than that of tension experiment
由純扭轉實驗得到的等效應力應變曲線較拉伸實驗延長5 - 6倍。When we draw the stress - strain relation of monotonic tension and pure torsion at the same co - ordinate namely equivalent effective stress and equivalent effective strain co - ordinate, it is obviously that the equivalent effective stress - strain curve of monotonic tension and pure torsion are basicly superposition while the equivalent effective strain is smaller. but equivalent effective stress level of monotonic tension was higher a little than that of pure torsion
把a3鋼試件單一拉伸和純扭轉時應力應變關系繪于同一個坐標中即等效應力和等效應變坐標中,可以看出當等效應變較小時拉伸實驗得到的等效應力應變曲線與純扭轉實驗得到的等效應力應變曲線基本重合。但單一拉伸較純扭轉得到的等效應力要略高一些。The paper introduces large - scale fem software, algor, by which the auther can build model of hanging box of high pile cap, and simulates accurately three loadcases, which include loadcase behind enclosed concrete, loadcase behind empty water in hanging box, and loadcase behind high pile cap construction. the auther calculates tensor and displacement of hanging box weir when loads exert panels, supports, suspenders, top beams, base beams of hanging box weir. at the same time the auther carrys out th e stability analysis, besides, educes calculational and analytical data, which are tally with construction result in the main
論文介紹大型通用有限元計算軟體algor ,並用軟體建立大遼河特大橋高樁承臺吊箱圍堰的全結構模型,相對準確地模擬灌注封底混凝土后、抽除吊箱內河水后、承臺破冰體施工后等三種受力工況,並用模型進行了應力和變形的計算,計算各工況荷載作用於吊箱全結構箱體板面、內支撐、吊桿、懸吊頂梁、底梁等的應力和變形,並對比吊箱圍堰板面計算變形和施工實測變形,結果是吻合的;對大遼河特大橋高樁承臺輕型吊箱的穩定性進行了計算分析;論文研究工作表明,應用組合有限元方法計算大型施工結構問題具有現實意義。The deformation behaviors and evolution behaviors of the microstructure for the new 7055 aluminum alloy at high temperatures have been investigated by isothermal compression testing method with gleeble - 1500 thermal simulator
本文利用gleeble - 1500熱力模擬試驗機,採用高溫等溫壓縮試驗方法,對7055新型超硬鋁合金的高溫塑性變形流變應力行為及組織演變行為進行了研究。The interdependences of flow stress a, strain rate and deformation temperature t for the alloy have been studied with the aids of om, edax, dsc, xrd, tem, sem, regression analysis and artificial neural networks methods
通過om 、 edax 、 xrd 、 tem 、 sem及數學回歸分析和人工神經網路分析等手段,研究了該合金微觀組織特徵,高溫塑性變形過程中的流變應力、應變、應變速率(This software can deal with three - dimension sequence concrete placement, concrete creep stress calculation
此程序成功實現了混凝土三維跳倉澆築,混凝土徐變應力計算等。Some physical methods of herbage seed selection applied in grassland ecotogical resume were introduced, including electric field, magnetic field, physical radiation, laser, ion beam and alternative stress etc., and their application in biological effect, induced breeding and transgenic techniques
摘要介紹了草原生態恢復中選育優良牧草種子的一些物理學方法,包括電場、磁場、物理輻射、激光、離子束和交變應力等在植物的生物學效應、誘變育種和轉基因技術中的應用。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。Based on the constitutive relationship coupled microstructure evolution, 3d - fe simulation of isothermal forging process of tc6 titanium alloy disc is performed dealing with different deformation temperature, punch velocity and shear factor of friction, effect of process parameters on equivalent strain, equivalent stress and grain size is calculated, and load - displacement curve is calculated
本文基於微觀組織演變的本構關系模型,對不同變形溫度、凸模速度和摩擦條件下鈦合金盤的等溫鍛造過程進行了三維數值模擬,研究了變形工藝參數對等效應變、等效應力和晶粒尺寸的影響,計算了各變形條件下的位移?載荷曲線。General rules were validated and a new rule was discovered : i. e. the shape 0f these two stress fields are same, the equivalent stress of the round corner in the bottom reached its maximum at the first phase, the equivalent stress of the edge of hole reached its maximum at the third phase, the equivalent stress of flanging with cone - shaped punch descend more than that with column - shaped punch at the fourth phase i. e. the phase of deformation completed
驗證了一般規律,也發現了新規律,即兩者的應力場形狀相同,底部圓角處等效應力在變形第1階段最大,孔口邊緣處等效應力最大出現在變形第3階段,第4階段(變形終了時)錐形沖頭翻邊的等效應力比柱形沖頭翻邊時下降更大。Under macrostrain large strain, the equivalent effective stress of pure torsion was higher
在大應變下,由扭轉實驗測得的等效應力值較高。The soil ' s stress path has important effects on the retaining wall ' s lateral deformation and the soil ' s deformation during the excavation of foundation pit. an experiment simulating the soil ' s stress path behind the wall has been carried out with the stress - controlled triaxial instrument. the principle stress ratio keeps constant during consolidation and the soil samples are permitted to drain during unloading process
利用應力式三軸儀對基坑開挖過程中圍護結構后側土體變形影響較大的因素:土體的應力路徑進行了試驗模擬,試驗是在等主應力比固結后側向卸荷而軸壓不變的排水情況下進行的。The barrel finite element model is established in ansys, the changing laws of temperature field and thermal - stress field are analyzed before and after the composite material is winded. winding angles and winding thickness affection to the strength of the composite material barrel are analyzed
用ansys建立了有限元計算模型,對比分析了槍管在纏繞復合材料前後,其溫度場和全等效應力場的變化規律以及復合材料纏繞角和復合材料纏繞厚度對槍管強度的影響。Resonant devices are used to measure strain, stress, acceleration, pressure, mass, flow, etc. by detecting the change of the resonant frequency or amplitude of the resonant components
諧振器件通過檢測振動元件的諧振頻率或振幅的變化來測量應變、應力、加速度、壓力、質量變化以及流量等,廣泛應用於力學量傳感器中。分享友人