疲勞理論 的英文怎麼說
中文拼音 [píláolǐlún]
疲勞理論
英文
theory fatigue- 疲 : 形容詞(疲乏; 勞累) tired; weary; exhausted
- 勞 : 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...
- 理 : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
- 論 : 論名詞(記錄孔子及其門徒的言行的「論語」) the analects of confucius
- 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
- 理論 : theory
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It is, therefore, of academical and practical importance to investigate and to clarify the electrical fatigue mechanism of ferroelectrics by using on - line or in - situ technologies
採用現場或原位技術觀測電疲勞過程中電疇的變化對研究和探明這類材料的電疲勞機理具有重大的理論指導意義和實際應用價值。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疲勞定量化、簡約化、模式化,借用自控理論將駕駛疲勞類比為兩個過程:類慣性環節的響應過程及類比例微分環節的響應過程。Based on the previous research on the portal crane administration, one standpoint put forward in this paper is idea that is on the foundation of reliability in this paper, two viewpoints take shape when reason is analyzed, that is fatigue break and appearing the flaw that will extend. what is the fatigue break ? ( this phenomenon is always happen in some place ), the fatigue is that board appears apophysis and concave when the board is pressed. so that the board ability of bearing the weight of load will descend
本論文建立在已有的港口裝卸機械管理的研究基礎之上,進一步提出了以可靠性為基礎的港口裝卸機械的管理思想,已有的研究表明,港口機械設備破壞主要由於兩個原因,第一是穩定性問題,特別是構件的局部穩定性,所謂穩定性是指:在板的平面內,板受到平行於板面的壓力作用,使板發生隆起、內陷等凹凸不平的結果,從而使板受載能力減弱;第二是結構出現疲勞裂紋及其擴展,這是由於設備長時期運行,而造成設備某些部位出現裂紋並得以擴展,使設備承載能力下降。Mourinho ' s pre - match assertion that fatigue would play a part in the outcome of tie proved to be another well - crafted piece of psychological bunkum as chelsea ' s players matched their opponents in every department
穆里尼奧賽前關于疲勞會影響發揮的言論看來是一次成功的心理戰,切爾西球員在場上各個位置的表現都要優于對手。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疲勞壽命的影響,從理論上分析了在最佳擠孔量下,鏈板疲勞壽命提高的因素,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比較。The research is that : after the same cyclic number of loading times, the steel stress of reinforced beams was much smaller than that of common beam ; the deflection of reinforced beams was decreased by 40 % - 50 %, therefore, the anti - transformation of the reinforced beams is enhanced greatly
研究發現:經過相同次數的疲勞荷載作用后,完好加固梁的鋼武漢理工大學碩士學位論文筋應變小於未加固梁,加固梁的變形減少了40 %一50 % ,加固梁的疲勞壽命提高t60 % ~ 80 % 。In addition to, the fatigue crack between web and upper flange of welded steel crane beam on heavy duty service was discussed, and based on long - term observation and research, the author classified fatigue crack into bearing type and middle type crack along the horizontal direction. the causation, distributive law and mechanism of the crack were analyzed, and the precautions to take and the measures to remedy crack were presented. the main defacts including damage, crack, erosion and aging in structures, especially in concrete structure were introduced ; the defact mechanism was analyzed and the precautions to take were also given
另外,作者對重級工作制焊接鋼吊車梁腹板與上翼緣連接焊縫的縱向水平疲勞裂縫進行了長期的觀察和研究,根據疲勞裂縫產生的不同機理,將其分為支點裂縫和肋間裂縫,並討論了兩類裂縫產生的原因、分佈規律、機理以及防治的措施;對工程中經常遇到的結構構件,尤其混凝土構件的幾種主要病害(損傷、裂縫、腐蝕與老化)進行了機理分析並提出了防治措施。Moreover, base on lots of test data, fatigue life estimation is finished by help of miner, opposite miner rule and fracture mechanics theory. theoretic results and test data are well fit to each other
另外,本文在大量試驗數據的基礎上,依據miner法則、相對minar法則以及斷裂力學理論,對40cr高強螺栓的疲勞壽命估算進行了系統研究,理論分析結果與試驗值的規律性吻合較好。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。Safety of structures is a common and important problem in the mechanical engineering. recent years there is a trend of developing unified theory of fatigue and fracture to describe the life - cycle damage behaviour of structures. researches on safety guarantee are going toward multi - method synthesis, system micromation, network availability and life - cycle information management
結構的安全性一直是工程中普遍關心的重要問題,結構強度學逐漸發展到疲勞斷裂統一理論,結構安全保障手段已向多方法、微小化、網路化和全壽命在線保障與監測發展,建立全壽命安全保障系統,涉及材料、機械、力學、電子等學科的交叉融合。At present carbon fiber - reinforced composite is developed to use in some aero - engine components in our country. using the numerical method and fatigue damage theory, the buckling and fatigue on the composite materials and composites case are studied for aero - engine design
本文從實際工程背景出發,利用板殼理論和現代數值分析技術的研究成果,結合疲勞累積損傷理論,對航空發動機用的復合材料及其機匣結構的屈曲與疲勞壽命問題開展了較為系統深入的研究。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疲勞強度,並與疲勞試驗進行了比較,理論預測與試驗基本一致。The theoretical and experimental results for the 7075-t6 wol specimens presented above both show that intermittent proofing provides early warning of impending failure due to the growth of fatigue cracks.
以上所討論的7075T6WOL試樣的理論和試驗結果都證實:對因疲勞裂紋擴展即將引起的破壞,用間歇驗證試驗法可以作出早期警報。Therefore, to study the fatigue performance of concrete beam strengthened with cfrp - sheet have the important theories and realistic meaning
因此,研究碳纖維加固混凝土梁的疲勞性能具有重大的理論意義和現實意義。To aim at this problem, in term to the feature of fatigue loading of bridge, this paper, on the base of analysis of current bridge reinforcement, makes a relative system experiment research and theory analysis for the fatigue performance of cfrp - strengthened concrete beam
本文針對這個問題,在分析現有橋梁結構加固方法的基礎上,根據橋梁承受疲勞荷載的特點,對碳纖維布加固混凝土梁的疲勞性能進行了比較系統的試驗研究和理論分析。The existed material fatigue performance test curves are dealt with and analyzed, and the non - dimensional stress - strain curve, tangent modulus factor curve and fatigue life curve are drawn based on the experiment data, and these three non - dimensional parameter curves are used to find the inherent rules that the test curves can be replaced each other to some extent. it can be concluded that if the common character and system error of these materials are found, the test curve of a certain material can be used for reference by another material. this is a simple approach about fatigue life estimate and is engineering practical
對已有的材料力學疲勞性能試驗曲線進行分析整理,利用試驗數據繪制了相對應力應變曲線、切線模量因子曲線和疲勞壽命曲線,利用這三種無量綱參數曲線發現了其中存在的規律性,即在某種程度上實驗曲線可以互相取代,並用試驗數據對此進行了討論,並由此推斷,如果找出材料彼此的共性或彼此之間的系統誤差就可以將一種材料的試驗曲線供其它材料參考使用,這是一種估算材料的疲勞壽命的簡便方法,對工程而言具有實用性。We shall use it as a yardstick in the following brief survey of the theories of static fatigue.
我們在下面的靜態疲勞理論的主要研究中將用它作為一個衡量的尺度。Analysis on the air suspension structure based on fatigue strength method
基於疲勞理論的汽車空氣懸架結構件的彎曲強度計算First, literature review showed that mutiaxial fatigue theory is increasingly attracted attentions by some scholars in the world
第一,通過對以往文獻的分析指出,有關多軸疲勞理論已經越來越受到國內外眾多學者的關注。Using the strain gauge to acquire data of the stress time history under current operating condition on the critical location of the vane wheel, and using the fatigue theory to evaluate its residual working life is one of the effective engineering methods on fatigue problems study
摘要通過在葉片危險部位粘貼應變片進行數據採集以獲取其在當前運行工況下的應力時間歷程,結合疲勞理論來預估其剩餘工作壽命是工程中有效的疲勞問題研究方法。分享友人