low cycle fatigue 中文意思是什麼

low cycle fatigue 解釋
低頻疲勞
  • low : adj 1 低的;淺的,矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • cycle : n 1 循環,周期,一轉。2 周時,周年,年紀。3 (詩、故事等的)始末。4 自行車,三輪車,摩托車。5 【...
  • 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...
  1. The initial requirements involved the belief that the presence of a duplex or "necklace" structure was intolerable from a low cycle fatigue aspect.

    最初有人認為從低周疲勞性能的角度來說雙層或「項鏈」組織是絕對不行的。
  2. 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。
  3. The paper is dedicated to study the low - cycle fatigue behavior of a certain semi - rigid connection : the top - and - seat angle

    本文嘗試研究一種半剛性連接-頂底角鋼連接的低周疲勞性能。
  4. Low cycle fatigue ( lcf ) behavior of zircaloy - 4 has been reviewed in the present paper. then, the lcf behavior of a recrystallized zircaloy - 4 plate with different texture has been studied at room temperature and 400, respectively

    並在此基礎上,研究了不同溫度(室溫和400 ) 、不同取向(平行於軋向和垂直於軋向)的再結晶退火態zr - 4合金板材試樣的低周疲勞性能。
  5. The test of low cycle fatigue characteristics for 45crnimova steel and in - situ observation on surface crack propagation

    鋼的低周疲勞特性和表面疲勞裂紋的在位觀測
  6. Under seismic ground shaking, the ability of the connection to dissipate energy will depend on the connection ' s capability to withstand low cycle fatigue

    在地震地面振動時,連接的耗能能力取決于抵抗低周疲勞的能力。
  7. Accounting for creep and stress relaxation, a long - term life and low cycle fatigue life prediction method for gas turbine engine hot section is established

    摘要建立了考慮蠕變和應力鬆弛的航空發動機渦輪葉片等高溫構件的持久壽命和低循環疲勞壽命預測方法。
  8. In this paper, the high - temperature low - cycle fatigue life and fatigue crack propagation life tests are carried on the cylindrical axial symmetry specimens having precrack or non - precrack with different types of notches of 16mnr steel in common use in the petrochemical industry contacting coke drum equipment, the stress / strain and the range of stress / strain of dangerous points are received through stress analysis of the specimens using finite element program under multi - axial stress state. at last, the equations of evaluating the high - temperature low - cycle fatigue life and the fatigue crack propagation life are found through using the least - square regression method

    本文採用無預裂紋和帶預裂紋環狀缺口圓柱形試樣,進行了石化焦炭塔設備常用材料16mnr多維應力狀態下不同缺口形式的高溫低周疲勞總壽命試驗及裂紋擴展壽命試驗,並利用有限元程序對試樣缺口周圍及裂紋尖端附近進行了軸對稱多維應力狀態下的應力、應變場分析,來評價材料不同條件下的高溫低周疲勞總壽命和裂紋擴展壽命,最後利用最小二乘回歸方法,得到了該材料高溫低周疲勞總壽命和裂紋擴展壽命評價方程。
  9. Based on the experimental data of rotor steel 1crmov in the loading of low - cycle fatigue at high temperature, the strength behavior and the fatigue life curve of this material at 550 have been achieved. meanwhile, with respect to three kinds of notched bar, their material damage assessment method under multiaxial stress condition is discussed

    本文在1crmov材料的高溫低周疲勞實驗數據進行了整理和統計的基礎上,得到了材料的疲勞強度特性曲線和疲勞壽命曲線,同時對三種不同缺口形式的圓柱形試件進行了多軸應力狀態下的材料損傷的研究,並通過數值計算方法進行了疲勞壽命評估。
  10. These stud " can be concluded as following : on the basis of the bhw - 35 steel p - s - n curve and its da ' dn growth law the method of low - cycle fatigue life evaluation of 401 t / h boiler was proposed. and a mechanics model was suggested for calculating the stress of internal pressure suffering elbow. with the elbow fatigue test, a method of evaluation the fatigue growth life of pressure suffering elbow is recommended ; and the elementary use of damage mechanics on the fatigue life evaluation of the boiler drum

    本文創新點為:在bhw - 35鋼的p ? s ? n曲線及da / dn擴展規律的試驗研究基礎上,提出了410t / h鍋爐汽包的低周疲勞壽命分析與預測方法;建立了一種橢圓截面變厚度彎管承受內壓時的應力計算力學模型,通過壓力彎管的疲勞試驗,本文推薦其低周疲勞擴展壽命預測方法;將損傷力學應用到鍋爐汽包疲勞壽命預測做了初步的探索。
  11. The change of elastic constant of steel 20 in low - cycle fatigue procedure measured by ultrasonic

    用超聲波法測試20鋼低周疲勞過程中彈性常數的變化
  12. On the basis of all these research, the method of low - cycle fatigue life analysis and estimation for 4 lot / h boiler drum was set up

    在上述研究的基礎上,建立了410t / h鍋爐汽包的低周疲勞壽命分析與預測的方法。
  13. Method of low cycle fatigue testing for metallic materials in liquid helium

    液氦中金屬材料的低周期疲勞試驗方法
  14. The application of elastoplastic stochastic finite element method in low cycle fatigue analysis

    彈塑性隨機有限元在低周疲勞分析中的應用
  15. Comparing experimental results with the numerical analytic results using the criterion, it is found that the criterion employs the axial deformations of bracing members as fatigue damage parameters and can be applied to real - time estimation of low - cycle fatigue damage of bracing members under a loading history - dependent random stale

    研究結果表明:本文方法以鋼支撐軸向位移為損傷參量,能實時估算在隨機位移荷載下鋼支撐的低周疲勞累積損傷發展,並與試驗結果吻合較好。
  16. The long - term life and low cycle fatigue life of low pressure turbine blade for an aeroengine under real loading spectrum is analyzed by using this method

    用該方法對某型發動機低壓渦輪工作葉片在實際飛行載荷譜作用下的持久壽命和低循環疲勞壽命進行了分析。
  17. Discussion of the evaluating criterion of 400 low cycle fatigue life under multiaxial stress states

    低周疲勞壽命評價準則的探討
  18. Low - cycle fatigue life prediction under multiaxial non - proportional loads

    多軸非比例加載低周疲勞壽命預測方法的研究
  19. Multiaxial low cycle fatigue life prediction model based on plastic energy

    基於塑性應變能的多軸低周疲勞壽命預測模型
  20. Through research into the low - cycle fatigue behavior of gh4145 / sq, we found out that the control of strain at any level is not a stable course but has three obvious stages. the first stage is a rapid cyclic hardening course for any strain control

    對gh4145 / sq合金在總應變幅控制下的對稱拉壓低周疲勞研究表明:在循環形變過程中合金主要表現為初始疲勞硬化、隨后疲勞軟化及最終失穩斷裂三個階段,疲勞硬化軟化行為與作用應變幅相關。
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