疲勞比 的英文怎麼說

中文拼音 [láo]
疲勞比 英文
endurance ratio
  • : 形容詞(疲乏; 勞累) tired; weary; exhausted
  • : Ⅰ動詞1 (勞動) work; labour 2 (煩勞) put sb to the trouble of; trouble sb with sth : 勞您費心...
  • : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  • 疲勞 : 1. (疲乏勞累) tired; fatigued; weary; become fagged 2. (機能或反應能力減弱) fatigue; strain 3. [物理學] fatigue
  1. By using transfer function, quantitative analysis, pattern analysis and reduced analysis of driving fatigue can be finished. based on automatic control theory, driving fatigue can be analogized as two parts : inertia link and proportion differential link

    採用傳遞函數將駕駛定量化、簡約化、模式化,借用自控理論將駕駛為兩個過程:類慣性環節的響應過程及類例微分環節的響應過程。
  2. The arquebus is a very heavy weapon compared with the bow, and tires out soldiers on the march ; their aims grow unsteady after half an hour ' s rapid firing

    火繩槍弓重的多,很容易造成士兵行軍。此外也很容易讓他們在半個小時速射后失去準頭。
  3. It can be seen from the results that the control beam had good plastic property in the static failure experiment after two million fatigue loading circles. all specimens with corroded main bars were failure under the fatigue loads within one million fatigue circles. fatigue lifespan of reinforced concrete beam was sharply shortened after main bars corroded in it and the beam was destroyed bristly without any prediction

    試驗結果表明,振動測試不能夠對銹蝕鋼筋混凝土梁的破壞做出可靠的預測;對梁在經過200萬次循環加載后的靜力試驗中仍表現出良好的延性破壞特徵;銹蝕梁在100萬次循環內均因主筋斷裂而破壞;主筋銹蝕使得梁的壽命急劇縮短;梁發生脆性破壞而沒有徵兆。
  4. Abstract : the factors to influence fatigue life of chain plate areconcluded by experimental methods. the factors to prolong life of chain plate are analyzed by theoretical methods. the maximum value of crushing hole in 16a roller chain plate is calculated by finite element method

    文摘:用試驗方法確定了擠孔對鏈板壽命的影響,從理論上分析了在最佳擠孔量下,鏈板壽命提高的因素,用有限元法計算了16a鏈板的最佳擠孔量,並與試驗結果進行了較。
  5. First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed

    本文介紹了微動損傷的機理和微動壽命的研究方法;利用ug軟體對燕尾榫聯接結構創建了參數化實體模型;基於ansys軟體平臺求解彈性接觸問題,獲得了榫聯接結構接觸應力及接觸狀態量的分佈;在已有微動壽命預測模型的基礎上,引入載荷頻率影響因子,對低周、高低周復合載荷作用下的燕尾榫聯接結構進行了微動壽命的預測,與試驗結果對表明採用本文提出的方法預測榫聯接結構的微動壽命是有效的。
  6. Through the experimental research, we think : the technological capacity of fiberglass asphalt macadam if weaker than asphalt macadam, however, if use elasticized capacity to solve blending technological problem. adjust the breed of fiber silk, extend its diameter, its paving capacity is still worth exploring, asphalt - rubber macadam structure lager have good deformed - become capacity and crazed - resistance capacity, small gap rate. good water - resistance capacity, good hot - stability and simple construction technology. therefore. pitch rubber spall is a good cover material which is suitable for the second class or lower whose asphalt pavement has split open because of fatigue. and is the good structural measure of preventing half - rigidity grass - roots unit shrink - rift reflecting. pave a thin layer of pitch rubber spall between asphalt - type pavement layer and half - rigidity basic level, although the cost of building is higher than paving togongbu in the middle, the construction technology, crazing - resistance and water - resistance are better than togongbu, not only could reduce greatly the reflex of half - rigidity grass - roots unit material, long then the use lifespan of pavement, but also it is possible to reduce suitably the thickness of asphalt mixture layer, though the cast of building in the early days becomes more, in the long - term opinion, it have fully important technological and economical significance

    通過試驗研究認為:玻璃纖維瀝青碎石的技術性能不如瀝青碎石好,但路用彈性性能較好,如能解決拌和工藝問題,調整纖維絲的品種,增大其直徑,其路用性能仍值得探討,瀝青橡膠碎石結構層具有變形性能和抗裂性能良好,空隙率小,防水性能好,熱穩定性較好,施工工藝簡單的特點,因此,瀝青橡膠碎石是二級及二級以下公路因而開裂的瀝青路面的良好罩面材料,也是防止半剛性基層收縮裂縫反射的良好結構措施,在瀝青類路面面層和半剛性基層之間夾鋪瀝青橡膠碎石薄層,雖然造價夾鋪土工布高,但其施工工藝,抗裂性能和防水性能均優于土工布,不僅可以大大減少半剛性基層材料的反射裂縫,延長路面使用壽命,而且可能適當減薄瀝青混合料面層的厚度,雖然初期造價有所增加,從長遠來看,具有十分重要的技術和經濟意義。
  7. Results the prevalence of sub - health was 70. 66 % in medicos, which made them difficult to focus attention, be tired for a long time, memory decreasing, get a cold easily, fantod and inquietude, insomnia and have many dreams

    結果醫學院學生亞健康人群例較高( 70 . 66 % ) ,表現為注意力難以集中、長期持續、記憶力減退、經常感冒、煩躁不安、失眠多夢等。
  8. 4. the relation between re - bars strains and cycle index n is obvious. the larger the is, the shorter the n is, and the relation of them is inverse ratio

    ( 4 )鋼筋應變與試件梁的循環次數n之間有規律性,應變越大,壽命越短,兩者成反關系。
  9. 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性能實驗,研究其在不同溫度下壽命,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。
  10. Results show that in the middle life range the fatigue strength of interference - fit riveting increases by about 25 % compared with that of conventional riveting

    研究結果表明:在中壽命區,干涉配合鉚接的強度普通鉚接的強度提高約25 % 。
  11. President barbicane reached his house, bruised, crushed and squeezed almost to a mummy.

    康主席這時才能抽身回家,,渾身酸痛,彷彿所有的骨頭都給壓碎了似的。
  12. Being deficient in sonic fatigue testing and owing to the limitations of nomograph method application to the sonic fatigue life prediction, an analysis software program was designed and worked out in present thesis, based on the research achievement in prediction of sonic fatigue life, which strong function, easy use and great extensive capabilities

    本文針對現階段聲試驗的不足,以及工程中常用的諾謨圖方法的局限,整理了目前較成熟的典型蒙皮壁板聲壽命研究成果,提出設計並編制了一套功能強、易於使用,可擴展性好的聲壽命預測及分析平臺。
  13. Zircaloy - 4 sheet, which was cold - worked followed by recrystallization annealing, exhibits longer lcf life in the rolling direction than that in the transverse direction, and the fact that difference in lcf life between both directions becomes larger as the range of plastic strain becomes lower can be attributed to the texture effect, p - solution treatment deteriorates the alloy ' s lcf property because the treatment lowers the average value of alloy ' s schmid factors, and the subsequent annealing - treatment in a - phase range has a impact on the lcf properties, i. e. the subsequent annealing - treatment at 500 ? for 1. 5h results in better property than that at 750 for 1. 5h, which comes mainly from the fact that the alloy annealled at 500 for 1. 5h has lower amount of the precipitate particles than the alloy annealled at 750 for 1. 5h

    對于冷加工后經再結晶退火處理的zr - 4合金,軋制方向的低周壽命橫向要大。隨著_ p的降低,兩個方向的低周壽命的差別相應增加,這是由於合金中存在織構的緣故。冷加工后經再結晶退火處理的zr - 4合金在固溶處理后,抗性能明顯降低,這主要是由於固溶處理降低了合金的schmid因子;固溶處理后在相區的退火對性能有影響,即500 1 . 5h退火的抗性能要優於750 1 . 5h退火,這主要與500 1 . 5h退火的合金中沉澱相粒子的數量較少有關。
  14. The increase in fatigability of high - frequency tetanic contraction in unloaded soleus ( sol ) may be related to the changes in sarcolemmal na +, k +, or l - type ca2 + channels and na + - k + atpase

    模擬失重萎縮目魚肌( sol )高頻強直收縮的性增加,其機理可能涉及肌纖維膜與t管na ~ + 、 k ~ +通道、 na - k泵和l型鈣離子通道的功能的改變。
  15. The anti - wearing property of chme steel is 15 percent to 35percent higher than zgmnl3, which is a widely used anti - wearing steel. the reason of the excellent mechanical properties and anti - wearing property of chme steel is that the heat treatment sturcture of chme steel is composed of tempered martensite, bainite, temper troostite, remaining austenite and carbonide

    磨面分析表明, chme鋼基體高強度,高硬度、良好的強韌性配合和碳化物硬質點的彌散分佈,磨痕細短淺小,擠塑變形區細小均勻,抵抗沖擊滑動累積塑性能力強,是其耐磨性zgmn13高的原因。
  16. In this paper, a high performance sma system applied to steel bridge deck is put forth in allusion to the pavement project of the wuhan junshan yangtze river highway bridge. it comprises steel slab, zn coating layer, closing layer, adhesive, pre - mixed asphalt stone and dual layer sma from bottom to top. it is based on the fea results of the forces and deformation of the pavement layer by means of the algor feas, according to this bridge ' s traffic and the ambient temperature varying range of the pavement layer

    本文針對武漢軍山長江公路大橋鋼箱梁橋面鋪裝工程,從鋪裝層環境溫度變化范圍、交通量等使用條件出發,在用algorfeas有限元分析軟體分析鋪裝層受力變形基礎上,提出了(即鋼板+金屬鋅塗層+封閉層+粘接劑+預拌瀝青碎石+雙層sma )的高性能鋼橋面sma鋪裝體系,並對這種sma的組成材料,包括改性瀝青、集料、礦粉、纖維進行了較研究,設計了這種sma的配合,對sma混合料的性能進行了對試驗,對這種sma方案進行了性能研究,驗證了所選擇sma方案的可行性。
  17. 3. studying on prediction methods of the initiation life of aero - gear using shakedown analysis methods in order to directly consider in a quantitative way the details of stress - inelastic strain responses, residual stress and residual strain computations, fatigue crack initiation life was evaluated in aero - gear by using th

    利用chaboche的材料模型,研究了航空齒輪韌性材料在彈、塑性安定下的輪齒接觸裂紋萌生準則,該研究結果與相關的齒輪實驗結果較分析表明:塑性安定下的裂紋萌生預測方法預測航空齒輪的萌生壽命是較安全的。
  18. The corrosion resistance of aluminum alloys is improved by anodic oxidation, if the fatigue behaviors are taken into account, the behaviors of aluminum alloys by sulfuric acid anodizing is better than by chromic acid anodizing

    陽極氧化是提高鋁合金耐蝕能力的常用方法,如果從性能的角度考慮,經硫酸陽極氧化的鋁合金腐蝕性能鉻酸陽極氧化的更好一些。
  19. The stress distributions under load or unload as well as under fatigue tension with or without split - sleeve were studied, so as to reveal the advantage of coldworking with split - sleeve

    研究了帶襯套擠壓件在加載、御載及拉伸載荷狀態下的應力分佈,並和無襯套擠壓時的狀態進行較,從機理上揭示了帶襯套擠壓在改善試件抗性能方面的優勢所在。
  20. By means of area method and stress field intensity approach and computational analysis of finite element, the fatigue strength of misaligned welded joint, " t " type of plate welded joint and cruciform joint are estimated. estimations are consistent with fatigue testes

    利用面積法和應力場強法,通過有限元計算分析,預測了錯位板接頭、 t型板接頭和十字型板接頭在對稱循環和非對稱循環時的強度,並與試驗進行了較,理論預測與試驗基本一致。
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