fatigue stress 中文意思是什麼

fatigue stress 解釋
疲勞應力
  • 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...
  • stress : n 1 壓力，壓迫，緊迫，緊張。2 【語音】重音；重讀；【詩】揚音；語勢，著重點。3 重要（性），重點，...
  1. Research on changes of the nitric oxide synthase - positive neurons in medial cortical amygdaloid nuclei of rats under stress of exercise - induced fatigue

    疲勞應激大鼠杏仁皮質內側核群一氧化氮合酶陽性神經元的變化
  2. Fatigue, stress or allergies can increase the likelihood of a canker sore

    疲勞，壓力或過敏能增加口腔潰瘍發作的可能性。
  3. Abstract : based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck, high - temperature rutting test, low - temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high - temperature stability, low - temperature cracking - resistance, and fatigue cracking - resistance, which are served to evaluate the modification effect of epoxy resin of different contents. with the addition of epoxy resin, all the three performances are improved greatly. however, when the amount of epoxy resin added is over a certain value, the modification effect will be stable with no extra benefit detected. finally, in terms of the properties of the three respects, 20 ?, 30 ?, 30 ? are given separately as the proposal adding contents

    文摘:在分析鋼橋面鋪裝層主要病害和特殊工作環境的前提下，分別採用高溫車轍試驗、低溫小梁彎曲試驗和控制應力小梁彎拉疲勞試驗，研究了不同環氧樹脂摻量下的環氧樹脂改性瀝青混合料的高溫穩定性、低溫抗裂性和抗疲勞性能.試驗結果表明:環氧樹脂對這3個方面都有很大的改進效果，但改性效果和樹脂的添加量並不是一個無限遞增的關系，當添加量超過一定數值以後，改性的效果將趨于平穩.最後就高溫、低溫、疲勞3個方面分別提出環氧樹脂添加量為20 ? ， 30 ? ， 30 ?的建議值
  4. Based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck, high - temperature rutting test, low - temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high - temperature stability, low - temperature cracking - resistance, and fatigue cracking - resistance, which are served to evaluate the modification effect of epoxy resin of different contents. with the addition of epoxy resin, all the three performances are improved greatly. however, when the amount of epoxy resin added is over a certain value, the modification effect will be stable with no extra benefit detected. finally, in terms of the properties of the three respects, 20 ?, 30 ?, 30 ? are given separately as the proposal adding contents

    在分析鋼橋面鋪裝層主要病害和特殊工作環境的前提下，分別採用高溫車轍試驗、低溫小梁彎曲試驗和控制應力小梁彎拉疲勞試驗，研究了不同環氧樹脂摻量下的環氧樹脂改性瀝青混合料的高溫穩定性、低溫抗裂性和抗疲勞性能.試驗結果表明:環氧樹脂對這3個方面都有很大的改進效果，但改性效果和樹脂的添加量並不是一個無限遞增的關系，當添加量超過一定數值以後，改性的效果將趨于平穩.最後就高溫、低溫、疲勞3個方面分別提出環氧樹脂添加量為20 ? ， 30 ? ， 30 ?的建議值
  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疲勞壽命的研究方法；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；在已有微動疲勞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疲勞壽命的預測，與試驗結果對比表明採用本文提出的方法預測榫聯接結構的微動疲勞壽命是有效的。
  6. The analysis of randomness of local stress and strain in strain - based fatigue was studied, the approximate polynomial method was proposed

    探討了應變疲勞的局部應力應變的隨機性分析，提出了近似的多項式擬合法。
  7. Based on the aircraft structure fatigue theory, the article discussed the theoretical basis of methods that are usually used for aircraft structure fatigue crack - forming life estimation, i. e. the stress severity factor approach ( normal stress approach ), the local stress & strain approach, detail fatigue rating approach ( dfr ). also the processes of life estimation of these approaches are studied in the article

    文章在簡要介紹飛機結構疲勞強度理論的基礎上，對目前飛機結構勞疲勞裂紋形成壽命估算常用的應力嚴重系數法（名義應力法） ，局部應力應變法，細節疲勞額定值dfr法的理論依據作了較詳細的論述，同時對這些估算方法進行壽命估算的過程與步驟也作了詳盡的闡述。
  8. Conduct material fatigue testing and thermal stress test

    進行材料疲勞測試和熱應力測試。
  9. Metallic materials - torsional stress fatigue testing

    金屬扭應力疲勞試驗方法
  10. Lastly, with the fatigue equation, the paper establishes the fatigue stress coefficient which is used in the load stress calculation for lean concrete as undersurface of cement concrete pavement, and the structure coefficient of flexural tensile strength which is used in the flexural stress check for lean concrete as base of asphalt pavement

    利用得出的疲勞方程，建立貧混凝土作為水泥混凝土路面下面層荷載應力計算的疲勞應力系數，以及作為瀝青路面基層時，進行層底彎拉應力驗算的彎拉強度結構系數。
  11. The formula of axle load conversion in the standard has some problems, so respectively according to the corresponding formulas of load stress and fatigue equations of concrete pavement and lcb, the different formulas of axle load conversion and fatigue stress coefficients are put forward

    針對規范中軸載換算存在的問題，分別根據面層和基層的荷載應力公式和疲勞方程，提出軸載換算公式以及疲勞應力系數。
  12. The influence upon the fatigue stress of longitudinal bracing rods due to the transverse vibration of steel bridges

    橫向振動對鋼板梁橋聯結桿件疲勞應力的影響
  13. And two types of fatigue equations are put forward. according to them the fatigue stress coefficient of lcb for the concrete pavement structure and the structure coefficient of tension strength of lcb for the asphalt pavement structure are developed

    並提出了貧混凝土兩種形式的疲勞方程，據此推導了混凝土路面結構貧混凝土基層的疲勞應力系數和瀝青路面結構貧混凝土基層的抗彎拉強度結構系數。
  14. A time - variant reliability formulation is presented in this paper to account for the effects of fatigue, corrosion and maintenance actions on the first yield reliability of midship section modulus. a probabilistic model for long - term distribution of wave - induced fatigue stress range is established. for the purpose of obtaining the performance of structure that stands random fatigue load, the concept of stress parameter and equivalent stress range are introduced

    船舶在由波浪彎矩引起的交變應力作用下，船體構件焊接點處的微小裂紋逐漸擴展；同時，隨著船齡的增加，眾多結構構件遭受腐蝕的作用；從而使船體梁剖面模數減小，船體梁承載能力衰減，船舶結構的安全性將受到相當大的影響。
  15. The large - scale and general finite element software - ansys is employed to analyse the frame of locomotive in speed of 200km / h by fea. according to the analytical results, the static stress and fatigue stress of frame are checked in the light of current criterions. at the same time, the mode analysis of frame is made and the results are analysed

    本文利用大型通用有限元軟體ansys對200km / h轉向架構架進行了有限元分析，分析結果參照我國的現行標準對構架的靜強度和疲勞強度進行評定，同時，對構架進行模態分析，研究並評定了模態分析的結果。
  16. Railway rolling stock. behaviour of rolling stock ' s seats at statics stress, fatigue stress, vibrations stress and shocks stress

    鐵路車輛.在靜態應力疲勞應力振動應力和沖擊應力下鐵路車輛座位的特性
  17. Sonic fatigue stress simulation and pattern recognition of an aircraft flap

    飛機襟翼聲疲勞應力的模擬與模式識別
  18. Feather and down. determination of the permanent deformation after dynamic fatigue stress under constant load

    羽毛和羽絨.恆定負荷動態疲勞應力下永久變形的測定
  19. Feather and down - determination of the permanent deformation after dynamic fatigue stress under constant load

    羽毛和絨毛.固定負荷下動態疲勞應力永久變形的測定
  20. The decision of fatigue stress table of belt

    載荷譜的確定
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