疲勞比強度 的英文怎麼說

中文拼音 [láoqiáng]
疲勞比強度 英文
fatigue-stremgth-to-density 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...
  • : 強形容詞(強硬不屈;固執) stubborn; unyielding
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 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. 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,干涉配合鉚接的普通鉚接的提高約25 % 。
  2. 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,高硬、良好的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,是其耐磨性zgmn13高的原因。
  3. 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,並與試驗進行了較,理論預測與試驗基本一致。
  4. Fiber reinforced plastic rebar ( frp ) is a new composite, which is composed of fiber acting as reinforced material, synthetic resin acting as matrix, and some adequate auxiliaries, and is formed through a pultrusion process and necessary surface process. it has a high strength to weight ratio, excellent non - corrosive characteristic, fatigue - resistant characteristic, strong designability and magnetic neutrality, so it can be used in the applications with special performance requirements or where reinforcing bars are subjected to severe chemical attack

    纖維增塑料筋是以纖維為增材料,以合成樹脂為基體材料,並摻入適量輔助劑,經拉擠成型技術和必要的表面處理所形成的一種新型復合材料,具有高、耐腐蝕性能好、可設計性、抗性能好、耐電磁等獨特優點。
  5. Reliability assessment of xi - luo - du underground water - power plant : the results have been used by the cheng - du surveying, design and research institute for the preliminary design ; ( 2 ) the stress and strain analysis for the xiao - guan - zi sluice and its foundation : the report has been applied for the reinforcement of the foundation ; ( 3 ) the thermal control procedure for the no. 7 - 14 power plant dam segments of the three gorge project : the research report provides the effective and efficient methods for the controlling of the temperature field in the mass concrete structure ; ( 4 ) the software system development for the long - term monitoring for dikes : the software can automatically give the results of the seepage field and the probability of soil piping of dikes and underground ; ( 5 ) reliability assessment of xiang - jia - ba underground water - power plant : the results have been used by the zhong - nan surveying, design and research institute for the preliminary design ; ( 6 ) fatigue reliability estimation of shipping berthing pillar : the results give the optimized design scheme and prediction of the structural age ; ( 7 ) 3 - d static and dynamic stochastic finite element analysis for the strength, stability and thermal control problem for xi - luo - du project

    溪洛渡水電站超大型地下洞室群圍巖穩定的安全可靠性分析:被成都勘測設計研究院應用於選報告及可行性論證中; ( 2 )小關子水電站攔河閘壩及地基的應力應變分析:被成都勘測設計研究院應用於地基加固處理方案; ( 3 )三峽廠房7 # - 14 #壩段溫控並縫措施研究:為廠房壩段並縫方案的可行性提供了依據; ( 4 )堤防工程體系的長期監控預報預警決策系統開發:為監控、預測預報堤防滲漏管涌破壞提供分析軟體; ( 5 )向家壩地下洞室群圍巖穩定的安全可靠性分析:被中南勘測設計研究院應用於初步設計方案中; ( 6 )靠船墩的可靠研究:為廣東航運規劃設計院的靠船墩優化設計和加固提供依據; ( 7 )溪洛渡高拱壩壩體壩基(壩肩)和穩定的三維靜動力隨機有限元分析及可靠計算:為溪洛渡重大工程壩體的靜動力安全穩定性及溫控方案提供依據。
  6. Comparison of stiffness, strength and obturating performance of the initial obturator of the breech mechanism with those of the optimized one is made, which indicates that the stress concentration that leads to fatigue failure in the optimized structure is eliminated. the flexibility of the optimized obturator of the breech mechanism is considerably increased and its obturating performance is substantially improved

    對優化前後炮閂閉氣結構剛和閉氣性能進行了對,優化后的結構應力集中問題得到了有效控制,消除了潛在的源,結構的柔性得到很大程的提高,閉氣性能有了明顯改善,實現了優化的目的。
  7. Analysis results of histogram statistics and section electron microscopic scan technique, are that fracture feature of the cracks of the hbbb is similar and the crack is multi - source strain fatigue one. internal defects of the cast, such as impurities, gas holes, etc, are the main causes for early cracks. the contrast analysis of static strength, model and transient respond on three structures with fem proves that geometrical stress concentration in partial area has influence on early crack, also

    利用直方圖等統計方法和電鏡掃描技術對該抱軸箱體裂紋分析的結果是:抱軸箱體的裂紋斷口特徵相近,裂紋性質屬于多源性低周裂紋,鑄件中的夾雜、氣孔等內部缺陷是導致過早裂損的主要原因;利用有限元法對該抱軸箱體三種結構的靜、模態和動態響應對分析,證實了局部幾何性應力集中對過早裂損也有一定影響。
  8. After fatigue tests were carried out for 44 stand beams, the following consequences were achieved. 1, contrasted with lsfrc, the strength of standing dead load of lhfrc are improved above 10. 62 %. contrasted with plain concrete, the amount is 22

    在對44根標準試驗梁進行抗折試驗的基礎上,本文主要取得以下成果或結論: 1 、層布式混雜纖維混凝土的靜荷載抗折層布式鋼纖維混凝土提高約10 . 62 ,素混凝土抗折提高了22 . 6 。
  9. Based on the study of strength degradation of material in the fatigue process, a strength degradation model is proposed. a stochastic differential equation, which controls strength degradation, is obtained from the model randomized by markov process. by using the theory of stochastic, the distributions of residual strength at any given lifetime and lifetime of any given residual strength are attained. under a few suitable hypotheses, inverse gaussian distribution of fatigue life is derived, and verified by means of experimental data. the result shows that the model and the method are reasonable

    在研究過程中材料退化規律的基礎上,建立了一個退化模型.對其進行隨機化處理,得到控制退化過程的隨機微分方程.在一定假設條件下,獲得了剩餘概率密函數的封閉解,並推導出壽命的反高斯分佈形式.給出一種考慮損傷狀態對隨機漲落影響的近似處理方法.與試驗數據的較結果表明,本文的模型和方法是合理的
  10. 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設計方法,給出了設計流程;通過正交試驗(試驗) ,分析了高性能路面混凝土的發展規律、影響因素與形成機理;同時,根據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)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機理;並採用了對分析方法,研究了高性能路面混凝土的脆性、抗凍性和耐磨性等。
  11. Nowadays the issue of composite fatigue is among those primarily concerned for designing aircraft structures with long term durability and reliability

    復合材料層壓板由於其高的,在現代航空航天結構上得到廣泛應用,其問題也逐漸受到工程師的重視。
  12. Advanced composite is widely used in designing the structure of aircrafts, for it has some excellent performances such as excellent fatigue, high strength and stiffness ratio, etc

    先進復合材料以及良好的抗特性等諸多優異性能為飛機結構工程設計實踐廣泛應用。
  13. The effectiveness of predicting model is proved by means of comparison between predictions and experiments for a few types of welded steel structures

    通過對幾類典型焊接鋼結構的理論預測與試驗結果的較,驗證了理論模型的正確性。
  14. What is taken account of includes the effects of the material, geometrical shape, manner of loading, ratio of cycle stress, residual stress and short crack in weld toe on fatigue strength

    該模型考慮了材料、幾何形式、荷載形式、應力、尺寸效應、殘余應力及焊趾根部短裂紋等因素對的影響。
  15. To provide a practical tool for fatigue assessment, this approach is based on the so - called simplified fatigue analysis with the assumption that the long - term stress histogram of the hull structure follows the weibull probability distribution, the s - n curves used in the assessment and evabatbn are the basic design - n curves for non - nodal johts " issued by den ( department of energy of united kingdom ), combining with computer technology the assessment procedure is programmed, which will indicate the fatigue damage condition and degree of technical status of tanker hulls

    在中國船級社( ccs ) 《船體結構指南》和美國船級社( abs ) simplifiedfatigueanalysis的基礎上,根據對油輪結構特點和貨載特點的分析,討論了油輪船體損傷的影響因素,討論油輪計算方法和計算程序,引入模糊質量評級的方法,建立油輪損傷評估模型。結合先進的計算機技術,編制出油輪分析程序,採用典型實船資料,對其狀態進行評估,結果與實際情況較吻合,表明該程序具有一定的合理性,可作為油輪船公司評價油輪技術狀態時在損傷方面的參考。
  16. None but is the test spectrum abundant and controllable, it is possible to simulate the stresses environment needed for exposing weakness of the product. based on summarizing the present status of the vibration test and vibration environment simulation technology in the world, the topic of simulation of super - gaussian random vibration environment with controllable frequency spectrum and its applications in reliability enhancement testing is put forward. the main content and conclusions of the dissertation are as following : 1

    本文在綜述國內外振動試驗技術和振動環境模擬技術的基礎上,引出「頻譜可控的超高斯隨機振動環境模擬技術及其在可靠性化試驗中的應用」這一主題,並緊緊圍繞該主題開展了如下研究工作: 1 .全面分析了振動激勵的功率譜密量級、幅值分佈、帶寬以及試件結構的固有頻率、阻尼等因素對損傷累積的化效應,提出振動化試驗激勵信號應具備的重要特性:頻譜可控和超高斯,確立了本文的研究主題和方向。
  17. The opening stress and the life of crack growth is calculated and compared with the test results and the experience formula. the feasibility of the newman theory of opening stress used in the high strength steel is validated. then through the slice synthesis method, the three dimension surface crack of the weld joint of cone - cylinder is decomposed into many plane through cracks

    本文將基於裂紋閉合現象建立的帶狀屈服模型,用在平面貫穿裂紋中,計算此時的裂紋張開應力和裂紋擴展壽命,與試驗結果和經驗公式較,驗證newman裂紋張開應力理論在高鋼中的可行性;然後,用切片合成法,把潛艇結構凸錐柱結合殼焊縫處的三維表面裂紋分解成平面貫穿裂紋,用帶狀屈服模型的理論來分析平面貫穿裂紋,得到裂紋沿深方向的擴展速率,進而得到潛艇結構的壽命。
  18. The essay researched the compressive strength, bending strength, impact resistance and abrasion resistance of high strength polypropylene fibermesh concrete the mechanism of enhancing the properties of high strengh poloypropylence fibemesh road concrete composite was discussed and analyzed the regression on tensile strengh with portland cement mixed with fiber was derived using experiment the tensile strength of fiber soil stablization with porland cement was increased with dosage and length of fiber while the former was more effective than the latter test and analysis results indicate that polypropylene fiber can not only reinforce the strength of concrete, but also obviously promote the flexural fatigue life by the great stress the application of polypropylence fiber reinforced concrete in pavement construcion are also introduced

    文章研究了不同摻量有機纖維混凝土的抗壓、抗折、抗沖及性能、性能及耐磨性等各種路用性能,綜合論述了有機纖維對水泥混凝土路用性能的影響。通過試驗闡述了纖維水泥混凝土各種路用性能與纖維摻量、長間的關系。分析表明纖維水泥混凝土隨著纖維摻量和長增加而增加,且纖維摻量對纖維混凝土抗拉的影響纖維長的影響更大。
  19. Abstract : based on the study of strength degradation of material in the fatigue process, a strength degradation model is proposed. a stochastic differential equation, which controls strength degradation, is obtained from the model randomized by markov process. by using the theory of stochastic, the distributions of residual strength at any given lifetime and lifetime of any given residual strength are attained. under a few suitable hypotheses, inverse gaussian distribution of fatigue life is derived, and verified by means of experimental data. the result shows that the model and the method are reasonable

    文摘:在研究過程中材料退化規律的基礎上,建立了一個退化模型.對其進行隨機化處理,得到控制退化過程的隨機微分方程.在一定假設條件下,獲得了剩餘概率密函數的封閉解,並推導出壽命的反高斯分佈形式.給出一種考慮損傷狀態對隨機漲落影響的近似處理方法.與試驗數據的較結果表明,本文的模型和方法是合理的
  20. The physical and mechanical properties of the raw materials and the recycled mixture are studied respectively in this paper by means of indoor experiments. the primary mechanical indexes of the recycled mixture are tested, including the unconfined compressive strength, the resilient modulus and the cleavage strength. the changing laws of these indexes are related to the cement content, the ratio of old asphalt mixture to lime soil and the aged - period

    初步對再生混合料的無側限抗壓、抗壓回彈模量和劈裂等主要力學指標進行了分析評定,總結了其性能與剛性能隨水泥劑量、舊路面與灰土例和養生齡期的變化規律,並建立了各指標之間的相互聯系;此外對再生混合料的水穩定性、抗凍性、干縮特性、溫縮特性和特性也進行了試驗分析;在上述研究的基礎上還探討了原材料性質對再生混合料性能的影響。
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