過度的疲勞 的英文怎麼說
中文拼音 [guòdùdepíláo]
過度的疲勞
英文
tension pressure- 過 : 過Ⅰ動詞[口語] (超越) go beyond the limit; undue; excessiveⅡ名詞(姓氏) a surname
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 的 : 4次方是 The fourth power of 2 is direction
- 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...
- 過度 : excessive; over; undue; ana-; hyper-
- 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
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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。The aim of the paper is that providing evaluation evidences to find early the place and degree of fatigue accumulation damage through researching the relation between fatigue accumulation damage and magnetic memory effect based on stationary wave
本文的目標是通過基於駐波疲勞累積損傷與磁記憶效應關系的研究,為早期發現這類構件的疲勞累積損傷部位及其嚴重程度提供評價依據。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。We use the method of finite element analysis to find the most dangerous section of the rotator. through setting up a model of rotator, calculating the temperature and stress field of rotator, we get the section. then we supervise the section online, calculate the practical fatigue life loss and creep life loss
我們使用有限元分析法,通過建模,計算轉子溫度場、應力場,得到最危險截面,然後對危險截面進行在線監測,計算實際運行中的疲勞壽命損耗和蠕變壽命損耗,為安全經濟運行提供有效監控手段。Toughening thermoset matrix composites with interlayered thermoplastic particles is an effective method to improve fracture toughness and impact resistance without sacrificing hot / wet properties. furthermore, transverse strength, fatigue resistance and solvent resistance can also be enhanced. drapability and tackness of interleaved prepreg is maintained as conventional level
對樹脂基體復合材料採取層間顆粒增韌是提高復合材料層壓板韌性、抗沖擊能力和抗分層能力的有效途徑,在保持原有復合材料濕熱性能的前提下,通過層間顆粒增韌,還可以改善垂直纖維方向的強度、抗疲勞性能以及耐溶劑性,並不影響原有的成型工藝。5 component fatigue life curve ( p - s - n curve ) is used in fatigue life analysis. the thesis provides fatigue life whose possibility is 95 % or 50 %. the analysis results of fatigue life and weak elements agree with fact
本論文分析了該泵車可靠度為95和50的疲勞壽命,分析結果與泵車長期使用總結出的疲勞壽命基本吻合,且分析結果疲勞壽命薄弱部位在泵車實際工作中基本都產生過疲勞裂紋。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。This paper analyses the engineering feasibility of using the static fem in the fatigue strength design of the shipunloaders structure through discussing the difference of infinite fatigue life design and finite fatigue life design and puts forward the calculating work cycle of this structure after considering the shipunloaders work process. it is useful for crane design - engineer to introduce the general fatigue strength design processes of the shipunloaders
分析了有限壽命疲勞設計和無限疲勞壽命設計的異同,研究了用靜力學的有限元法進行結構的疲勞強度設計的技術可行性問題;並結合裝卸橋的工作過程,提出了相應的計算工作循環;介紹了裝卸橋疲勞設計的一般步驟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。Mr. st. john came but once : he looked at me, and said my state of lethargy was the result of reaction from excessive and protracted fatigue. he pronounced it needless to send for a doctor : nature, he was sure, would manage best, left to herself
約翰先生只來過一次,他瞧著我,說我昏睡不醒是長期疲勞過度的反應,認為不必去叫醫生,確信最好的辦法是順其自然。The intention of this paper is to develop a set of testing system, which has high efficient and reliable performance and advanced technology. it is applied in testing extrusion pressing of new type elevator wire rope tie - in in its making process and tensile strength, fatigue strength of tie - in. then to test the validity of design theory of the new type tie - in by analyzing the testing data and grope for new theory on and on
本課題研究的目的是開發一套高效可靠、技術先進的測試系統,用於測試新型電梯鋼絲繩繩頭製作過程中的擠壓力、以及繩頭本身的抗拉強度和疲勞強度性能,然後根據測試數據來驗證新型繩頭設計理論的正確性,並不斷進行新理論的探索。Purely physical fatigue, provided it is not excessive, tends if anything to be a cause of happiness ; it leads to sound sleep, and a good appetite, and gives zest to the pleasures that are possible on holidays
純粹身體的疲勞,只要不過度,有可能成為快樂之源;它讓人酣睡、胃口好,增添假日娛樂的勁頭。A series of static and fatigue experiments which include lots of specimens are performed on bolted composite laminates that include different sizes, different lay orientations and different torques. dye - enhanced x - radiography is used to check the progressive damage process as evaluation techniques, which can be made nondestructively. finally, the ultimate strength and fatigue life of composite bolted joints in static tension and
層合板接頭的試驗研究考慮了多種幾何尺寸、多種鋪層及不同擰緊力矩對其靜強度及疲勞性能的影響,同時使用滲透劑增強的x射線圖象技術對靜載和疲勞損傷擴展及累積過程進行了無損檢測,並對其進行了分析探討。Residual stresses not only result in unexpected machining distortion, but also increases the possibility of unpredicted fatigue failures and stress corrosion cracks ( scc )
殘余應力的存在直接影響構件的疲勞強度、抗應力腐蝕性能及尺寸穩定性,並導致后續機械加工過程中產生變形。A lot of oil tanker failure was reported in recent years, which attracted much attention of navigation industry. after investigation and analysis, fatigue crack was suspected to be one of main causes. the fatigue cracks were discovered mostly on the side longitudinals at the connections to transverse bulkheads or transverse webs
近年來,世界上有大量的油輪在海上失事,這一現象引起了各國航運界的高度重視,通過組織力量對油輪失事原因進行調查分析,認為一個重要的原因是艙內肋骨與上下翼艙的連接處的疲勞強度不足,導致艙室進水,然後波紋橫艙壁破壞導致進水過多而沉沒。The research of high performance pavement concrete ( hppc ) is done in two sides. one is mixture design, the other is pavement performance. the mixture design and design flowchart of hppc is given on the base of nc with the consideration of characteristic of both hppc and nc. the grow law, influencing factor and formation mechanism of hppc strength is analisised by perpendicular experiment. in the same, the fatigue equations are set up for hppc and hppc i on the base of fatigue experiment. the fatigue mechanism of hppc is analysised by damage mechanics and fracture mechanics. brittleness, frost resistance and abrasion resistance of hppc is researched with the camparition to nc i. at last, the economic analysis of hppc is done by two kinds of way
結合高性能混凝土與普通路面混凝土的特點,提出了建立在普通路面混凝土基礎上的高性能路面混凝土配合比設計方法,給出了設計流程;通過正交試驗(強度試驗) ,分析了高性能路面混凝土的強度發展規律、影響因素與形成機理;同時,根據疲勞試驗結果採用雙參數weibull分佈模型分別建立了高性能路面混凝土和高性能路面混凝土(沒有摻加硅粉)疲勞方程,應用損傷力學和斷裂力學,分析了高性能路面混凝土的疲勞機理;並採用了對比分析方法,研究了高性能路面混凝土的脆性、抗凍性和耐磨性等。3. the crane load and fatigue strength are regarded as stochastic process, the fatigue dynamic reliability based on limit stress model and fatigue dynamic reliability based on accumulation damage model are established on the base of statistic analysis the fatigue load and resistance
3 、在對疲勞荷載與抗力統計分析的基礎上,視吊車荷載與疲勞強度為隨機過程,建立了基於極限應力模式的疲勞動態可靠性分析模型及基於累積損傷模型的疲勞動態可靠性分析模型。Furthermore, according to results, the resistance of steel can reflect the damage exactly. ( 2 ) depending on the analysis of flaw size of the experimental samples, a theoretical model has been reached. the model is more close to the experiment result
在觀察得到的試樣表面裂紋的萌生和擴展規律的基礎上,通過對損傷后的實驗數據進行擬合,得到了鋼的疲勞損傷累積的一般理論模型,該模型更好的反映了鋼在疲勞循環的中早期的破壞,在疲勞測量精度上有了較好的改進。Besides, i needed air, needed to tire myself physically as a way of working off the agitation which gripped me
再說我正需要新鮮的空氣和肉體上的疲勞。這種肉體上的勞累可以緩和一下我現在的過度緊張的心情。In spite of that, the cracks propagate stably in specimens for all types of tests. thus the paris formula can be used to describe the fatigue crack propagation, and the values of fatigue fracture parameters in the paris formula are regressed by using the results of fatigue damage and stress intensity factors computation
盡管如此,不論對哪種疲勞試驗,其試件疲勞裂縫擴展主要表現為穩定擴展,可以運用paris公式描述疲勞裂紋擴展階段,並利用疲勞損傷數值模擬計算結果和裂縫擴展過程中的應力強度因子回歸了疲勞裂縫擴展速率公式中的疲勞斷裂參數。分享友人