fatigue point 中文意思是什麼

fatigue point 解釋
疲勞點
  • fatigue : n 1 疲乏，勞累；勞苦；累活。2 【機械工程】（金屬屢經打擊等后的）疲勞。3 【醫學】（組織、器官等對...
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  1. For rotor steel ( 30crlmolv steel ), the tests of low - cycle fatigue property are done under different temperatures. the fatigue life under different temperatures is researched to make up for the defects of the testing for foreign similar materials. when pull - stretch data is attempted to evaluate low - cycle fatigue data, the result shows that four - point associated method in middle - low life zone is done well under room temperature, but there are large errors of four - point associated method and general - slope method under other temperatures

    在本文中，通過與國外同類材料的性能進行比較，國產材料與國外材料共有的材料特徵基本相同；對轉子鋼（ 30crlmolv鋼）進行了不同溫度下的低周疲勞性能實驗，研究其在不同溫度下疲勞壽命，以彌補國外對同類鋼材測試的不足；採用拉伸數據預測低周疲勞壽命時發現，室溫條件下用四點關聯法在中低壽命區預測較好，在高溫條件下四點關聯法和通用斜率法都有較大誤差，需要進行改進。
  2. In this paper, pro / engineer is used to creat the model of wheel which is according with gb / t3487 - 1996. then the model is submitted to ansys where it is dealed with and loaded according as the prescribe in the fatigue experiment of gb / t3487 - 1996 and is analyzed in intension. the result shows the maximal stress is much less than the breaking point of aluminium alloy, which makes material wasted

    本文使用pro / engineer軟體，按照輪輞的國家標準，建構車輪的實體模型；然後把模型導入ansys ，按1997年中國汽車行業標準中的汽車輕合金車輪的性能要求和實驗方法所規定的疲勞實驗要求施加荷載；然後進行強度分析，分析結果表明，車輪的最大應力遠小於鋁合金的許用應力，存在進一步優化的可能和必要。
  3. According to the characters of shimadzu electro hydraulic servo controlled fatigue testing machine and ct specimen, put forward a method based on compliance of stroke displacement which reflects the displacement of loading point at first time

    本項研究根據島津液壓伺服材料試驗機和ct試樣的特點，首次提出了基於通過測量反映加載點位移的試驗機活塞位移的卸載柔度法來測量裂紋長度。
  4. Be sure that these activities supplement your running rather than increase your level of fatigue that reaches the point of interfering with your running program

    交替訓練（慢步，騎車等）最為補充訓練項目勝于增加跑步強度而產生的疲勞度。
  5. The measurement of crack initiation in three - point bending fatigue of 40cr steel

    鋼疲勞裂紋萌生壽命的測量
  6. The results of analyzing the fatigue behavior of the specimens in direct tension test, cantilever beam bending test, three point bending test and wheel tracking test by apa show that the fatigue failure regularities of specimens in different tests are different

    關于直接拉伸、懸臂梁彎曲、三點彎曲和往返輪載（ apa ）等疲勞試驗的試件所開展的疲勞損傷分析發現，試驗方法不同，其疲勞損傷破壞規律不同。
  7. Firstly, one conventional model of fatigue damage and classical damage mechanics theory are used to analyze the fatigue behavior of asphalt mixture specimens in fatigue tests including direct tension, cantilever beam bending, three point bending and wheel tracking by asphalt pavement analyzer ( apa ). for every type of tests, corresponding fatigue damage model and computational method are set up

    首先直接採用一種常用的疲勞損傷演化模型和經典損傷理論，分別對直接拉伸、懸臂梁彎曲、梁式試件三點彎曲和apa往返輪載等多種疲勞試驗開展疲勞損傷分析，針對每類試驗均建立了相應的疲勞損傷模型和疲勞損傷計算方法。
  8. However, the fatigue of structure is such a complicated phenomenon affected by many uncertainties that it is necessary to analyze the structural fatigue from the point of probability and statistics. probabilistic fracture mechanics is a branch of fracture mechanics, so the various parameters affecting the fatigue propagationg a re considered as randomized

    作為斷裂力學的一個新的分支，概率斷裂力學從概率和統計的角度對結構進行疲勞可靠性分析，充分考慮了疲勞破壞過程中出現的不確定因素，將影響疲勞裂紋擴展速率的各參數看作是服從某一種概率分佈的隨機變量。
  9. Fatigue damage detection in three - point - bending fatigue of 40cr steel

    鋼的三點彎曲疲勞損傷在線跟蹤測量
  10. By virtue of the stochastic bifurcation theory, the transition of the atom movement at a crack tip in fatigue damage system is investigated. using the singular point theory of one - dimensional diffusion process and the stochastic averaging approach of energy envelope, a micro - model to describe the atom movement at the crack tip in homoclinic bifurcation fatigue damage system, which is in the presence of stochastic perturbation, is established. after the study on the characteristic of the diffusion exponent, the drift exponent and the character exponent of the fatigue damage diffusion process on singular boundary, the bifurcation behavior of a homoclinic bifurcation fatigue damage system, which is in the presence of parametric white noise, is examined

    採用隨機分叉理論，探討疲勞損傷系統裂尖粒子運動性質突變.利用一維擴散過程的奇點理論，並結合能量包絡的隨機平均法，建立了隨機擾動的疲勞損傷同宿分叉系統裂尖粒子運動模型，通過研究奇異邊界的擴散指數、漂移指數以及特徵指數特性，考查疲勞損傷裂尖粒子運動的同宿分叉系統受參激白噪聲影響的分叉行為
  11. This paper, regarding the asphalt pavement in the zhoukou region as the study object, according to the prevalent norms ( specifications for design of highway asphalt pavement ), with the beginning of the pavement performance and the transportation investigation, totally and systematically analyzes the traffic parameters and the destroying reason of pavement at the early stage in the point of fatigue property and limit strength, gives the concepts and methods of the growth rate of equivalent axle load action time, seasonal modification factor and overload factor, proposes the method of axle load conversion on the condition of heavy loading. on this basis, it proposes the design method adapting to asphalt pavement construction, explains the steps of thickness computation of construction with the combination of engineering example, finally verifies thedesign method in the paper by test road. theory and practice both prove that the reasonability of pavement structure style and the reliability of design method in the paper can adapt to the present heavy loading and overloading traffic conditions, have highly theoretical and practical value

    本文以周口地區瀝青路面為研究對象，以現行《公路瀝青路面設計規范》為依據，從路面使用性能和交通特徵的調查入手，從疲勞特性和極限強度出發分析了路面早期破損的原因，全面系統地進行了交通參數的分析，提出了當量軸次增長率、季節修正系數和超載系數的概念和方法，並提出了重載交通的軸載換算方法。在此基礎上，針對超載、重載交通從結構組合設計、結構厚度計算（包括疲勞強度標準和極限強度標準）等方面提出了適宜的瀝青路面結構設計方法，並結合工程實測，說明了結構層厚度計算的具體步驟，最後通過試驗路驗證本文提出的設計方法。理論與實踐均表明，本文提出的路面結構型式合理、設計方法可靠，能適應目前重載、超載交通的狀況，具有較高理論與實用價值。
  12. Two different reinforcing methodologies are applied : modification of the overlay characteristics by adding chopped glass fibers to the hot mixture asphalt ( hma ) and reinforcing asphalt overlay with glass grids. theory of fracture mechanics ( fm ) is employed to determine crack growth rates for the suggested anti - cracking overlay systems. asphalt mixture designing tests, three point bending tests and fatigue crack propagation tests were carried out. the critical stress intensity factors kic are determined for plain and reinforced asphalt concrete. depending on the fatigue crack propagation, the crack growth rate is determined for each type of anti - cracking system and the cracking process is also analyzed. one of the significant points in this study is the attempt to give better understanding of the crack propagation for multilayer asphaltic overlay or what are suggested herein to be called composite structure anti - cracking overlay system. the results indicate that the reinforcing materials improve anti - cracking characteristics of the asphalt concrete. composite structure anti - cracking overlay gives a good solution for the reflective cracking phenomenon over old cracked pavements

    利用2種不同的方法加筋瀝青罩面:在瀝青混合料中加入短切玻璃纖維改善瀝青混凝土的特性，採用玻璃格珊加筋瀝青混凝土.應用斷裂力學方法分析瀝青路面裂縫擴展機理.採用瀝青混合料設計試驗、三點彎曲試驗和疲勞裂縫擴展試驗，確定加筋瀝青混凝土的臨界應力強度因子kic ，測量每一種瀝青罩面抗裂系統的裂縫擴展速率.本研究的主要特點是提出復合型抗裂罩面系統，分析了多層加筋瀝青罩面裂縫擴展過程，推薦了若干瀝青路面抗裂系統.結果證明，加筋材料可以提高瀝青罩面的抗裂特性，復合型抗裂罩面系統能夠有效地阻止反射裂縫的擴展
  13. 2, the friction coefficient at the pitch point is not a monotonic quantity of the rational speed or the load, instead of having a maximum value. and the value of the friction coefficient is very small, its order of magnitude only being 10 - 3. so, it is reasonable that the friction force on teeth surfaces are ignored when the gear - driven contact fatigue strength is designed

    2 、當輪齒在節點嚙合時，隨著轉速或載荷的變化，齒面摩擦系數並非呈單調變化，而是存在極值點;節點嚙合處的齒面摩擦系數很小，其數量級為10一， ，因此在做齒輪強度設計時，忽略齒面摩擦力的影響是有理論根據的。
  14. Ould have good flexibility and flexing fatigue - resistance performance ; it should be anti - aging, oil - resistant and wear - resistant ; on the inner side of the back there should be point angel grooves of appropriate sizes made not only to meet technical de mands but also for purpose to improve the anti - wear performance, meanwhile, part of the noises shall be eliminated due to the escaping of the detained air between the be

    同步帶的背部用以粘結包覆抗拉元件，應有良好的柔韌性和耐曲撓疲勞性能，不易老化，耐油性好，耐磨損，在帶背的內表面開有適當大小的尖角凹槽，除因工藝要求外，還能改善帶的曲撓疲勞性能，同時在運轉過程中使帶與輪間的截流空氣逸出，以消除部分噪音。
  15. The fatigue life is determinate when determination methods are used to analyze fatigue. but the fatigue of structure is a much complicated phenomenon affected by many uncertainties. so it is necessary to analyze the structural fatigue from the point of view of probability and statistics

    但是，結構的疲勞又是一個受到大量不確定因素影響的極其復雜的現象，因此，根據結構可靠性理論，從概率和統計的角度對結構進行疲勞可靠性分析是十分必要的。
  16. Plastics and composites. determination of the bending fatigue properties. part 3 : three - point bending test on unsecured test pieces

    塑料製品及復合材料.彎曲疲勞特性的測定.第3部分:不固定試件的三點式彎曲試驗
  17. The 3 - point bending teat was performed on material testing system ( mts ) to investigate the quasistatic and fatigue behavior of ultra - thick 3 - d orthogonal woven composites ( glass / unsaturated resin ), which aimed to predict the fatigue property of this material

    摘要在材料測試系統mts上，採用三點彎曲加載方式對超厚三維正交機織復合材料（玻璃纖維不飽和聚酯）分別進行靜態及疲勞試驗，對該材料的疲勞性能進行探索和預測。
  18. Harness karabiners with conventional catch fasteners show different fatigue resistance over and below the point of actuation by gravity of their catch

    傳統制動緊固件的裝備巖釘鋼環在其制動片（裝置）重力作用點以上/下都具有抗疲勞性。
  19. Fatigue safe control assessment method on steel crane structures in service is put forward based on fatigue dynamic reliability. after investigating and summarizing many engineering usage and appraisal. based on the miner accumulation damage model, in a fatigue reliability point of view, the remain fatigue life assessment equation in the ( technical specification for inspection, assessment and strengthening of steel structures ) ) ( yb9257 - 96 ) is analyzed, and the probabilistic meanings of the additional safe factor is proposed

    4 、在上述工作的基礎上，基於疲勞動態可靠性，提出了鋼結構吊車梁疲勞安全控制評定方法；從miner累積損傷的定義出發，提出了在役鋼結構吊車梁疲勞剩餘壽命評估的可靠壽命評估方法，與現行《鋼結構檢測評定與加固技術規程》 （ yb9257 - 96 ）中的安全期限壽命評估方法進行了分析比較，解釋了安全期限壽命評估方法的概率意義，通過算例說明了本文提出的可靠壽命評估方法的合理性。
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