疲勞應變計 的英文怎麼說
中文拼音 [píláoyīngbiànjì]
疲勞應變計
英文
fatigue strain gauge- 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...
- 應 : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
- 計 : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
- 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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A new prestressed bowshaped structure strain multiplier was designed to solve problem which strain amplitude is much lower than the threshold of fatigue life gage, and this strain multiplier take the advantages of entire structure, lower stiffness, good reliability and convenience to use
設計出一種弓形預應力結構應變倍增器,解決了橋梁應變幅值遠遠低於疲勞壽命計門檻值這一關鍵問題,此倍增器具有整體性強、剛度低、可靠性好、使用方便等優點。Most existing constitutive models do not take into account the interactions between different phases of pearlitic steel and cannot illustrate why such kind of materials has excerllent mechanical properties. it is, therefore, necessary to develop a new method, which can describe the macroscopic behavior, damage and failure of the materials and their micro structural dependence. in this paper, based on a non - classical theory of plasticity and the continuum damage mechanics, a damage evolution based on an ellipsoidal void model for mixed hardening materials is obtained
已有的關于珠光體鋼的本構模型多難以考慮珠光體材料的微結構及其相互作用,難以解釋珠光體材料何以具有較好的綜合力學性能,因此有必要發展一種多層次的細觀力學分析方法以研究此材料在復雜加載條件下計及微結構特徵的宏觀響應特性,使材料的強度、疲勞壽命的預測與其微結構及各組成相的損傷及微觀應力應變演化規律聯系起來,進而為材料微結構的設計提供依據。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。The first stage is primary slip then followed by secondary slip ; the last stage is due to dislocation passing the slips. the cyclic stress strain ( css ) curve exhibits a stronger hardening occurred in cyclic plastic deformation than that in tensile test
建立了拉伸和應變疲勞的有限元模型,使用基於晶體滑移模型的數值方法,對晶體內部滑移系的啟動以及滑移繫上的分解切應變、切應力這些無法試驗觀測的變量進行計算,分析它們對晶體塑性變形的不同影響。And it investigates the appearance condition ( including joint, crack, eroding, corrosion, braking pole device rupture, crane - girder ' s gnawing railway and so on ) of the whole crane - girder system on the spot, at the same time, it also actually examines the stress of the beam, chemical ingredient, distortion and railway excursion, etc. through sampling, and based on the actually examined results, it checks and calculates the carrying capacity of crane - girder system. then, based on the investigating on the spot and the calculated result, it discusses the mechanism of fatigue failure of the upper part of welded steel crane - girder, analyses the reason of steel crane - girder in the high - frequency emerging the fatigue crack, institutes the strengthened method of damaged steel crane - girder of accurate packing up workshop of the primary mill plant. finally, it presents some advice and suggestions for the repairing and strengthening method of fatigue crack of upper part of steel crane - girder in the high - frequency
針對包鋼初軋廠精整車間鋼吊車樑上部區域出現裂縫這一問題,本文首先綜述了國內外關于焊接鋼吊車樑上部區域疲勞裂縫的研究現狀;其次對整個吊車梁系統的外觀情況(包括連接、裂縫、腐蝕、銹蝕、制動桿件斷裂、吊車啃軌等)進行了現場調查,抽樣實測了梁的應力、化學成分、變形及軌道偏移等,根據實測結果,對吊車梁系統的承載能力進行了驗算;然後,根據現場調查及計算結果,探討了焊接鋼吊車樑上部區域疲勞破壞的機理,分析了重級工作制鋼吊車梁出現疲勞裂縫的原因,制定了初軋廠精整車間破損鋼吊車梁的加固方案;最後就重級工作制鋼吊車樑上部區域出現疲勞裂縫的修復與加固方案提出了一些意見和建議。In the paper, through the calibration test of ground load, the relationship between outputs of electrical resistance of strain gauges and the external load applied on the structure has been gotten, and then the load history can directly be deduced from the measured strain history. so the fatigue load can be compiled
本文所建立的應變法實測疲勞載荷,其主要方法是通過進行地面加載標定實驗,確定所設計應變電橋輸出量與結構上作用的外載荷之間的關系,再由實測應變歷程直接得到載荷歷程的方法。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比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 )靠船墩的疲勞可靠度研究: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)強度和穩定的三維靜動力隨機有限元分析及可靠度計算: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。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。The correction of the method of equivalent cycle number
非穩定變應力下疲勞強度計算的等效循環次數法的修正The natural vibration spectrum curve is measured and the critical velocity to induce trashrack bar galloping is calculated. the effect of bar spacing on the bar strain and the characteristics of the exciting force are discussed. by fatigue analysis it is obtained that the service life of weld at the fixed end of the bar is about 13
分析了發電工況和抽水工況時的振源特性,討論了柵條凈距對柵條應變的影響,按鋼結構設計規范對柵條進行了疲勞計算, 1 ~ #測點處可視為不會發生疲勞破壞, 2 ~ #測點焊接處的疲勞壽命約為13 . 6年。Therefore, a systemic and in - depth study is of significant importance for improving, engineering design and application of 3d - c / sic on the interaction fatigue - creep and thermal shock properties
研究3d - c sic熱震和疲勞蠕變交互作用行為和積累更全面的性能數據,對改進該材料、工程設計和應用具有重要的意義。Abstract : the time - variant reliability analysis of ship hull girders subjected to the deg r adations of fatigue and corrosion is quantitatively carried out in this paper. th e analytical formulations are derived and simple program is compiled. as a case s tudy, the time - variant reliability of a vlcc tank is calculated. it shows that th e degradation effects of fatigue and corrosion are very important for the load - c a pacity calculation of thsip hull girders. after the second special inspection ( 10 years ), the detailed inspection should be done in order to guarantee the safety of ship navigation
文摘:定量考慮船體構件疲勞裂紋擴展和環境腐蝕對船體梁承載能力的雙重衰減因素的影響,對船體梁的時變可靠性進行了分析,列出了時變可靠性分析公式並編制了相應的計算程序.以一艘大型油船的結構可靠性為例,表明疲勞裂紋和環境腐蝕在第二個特檢年( 10a )之後對船體梁承載能力有顯著的影響,此時開展詳細的船體結構檢查對保證船舶營運的安全性具有重要的意義Second, the random variables in reliability analysis of the steel rail are discussed. these random variables include the wheel load, the stiffness of the rubber pad and the bed, the temperature stress and the fatigue ultimate strength of the steel rail. and their probability distributions and parameters are discussed thoroughly
其次,對鋼軌可靠度分析中涉及的隨機變量如輪載力、軌下膠墊剛度、道床路基聯合剛度、溫度應力及鋼軌疲勞極限強度的概率分佈類型和統計特徵進行了詳細討論。Studying the rule of geometric shape of surface crack during propagation by means of fracture mechanics theory, a predicting method of fatigue crack propagation life and it ' s numerical calculation theory are presented
本文應用斷裂力學理論,對焊接鋼結構表面裂紋擴展過程中裂紋幾何形狀的變化規律進行了探討,提出了疲勞裂紋擴展壽命的預測方法,給出了相應的數值計算理論。In this paper, the linear accumulative damage theory commonly used for calculation of the fatigue of variable amplitude stress is used to assess the fatigue of the same part of the structure due to the two kinds of stress cycling and the assessment formulae for the fatigue of the stud welding roots in the negative moment region are also provided
引入通常用於計算變幅應力疲勞的線性累積損傷理論,對2種應力循環引起的結構同一部位的疲勞進行評定,給出組合梁負彎矩區栓訂焊趾疲勞評定公式。It has shown by the uncertainty of the data of fatigue experimentation and the size deviation of machine accessory and structure component and the original defect of materials that all of the stress and intensity and the factors that affect them are stochastic variables, so we should deal with the problem of fatigue by the method of probability and statistics to making the engineering life deduced by fatigue intensity to be the reliable life under a certain probability
疲勞試驗數據的離散性,零件和構件加工允許的尺寸偏差,材料中分佈的原始缺陷,以及受載零件危險部位應力響應的分佈特性等,都說明應力和強度以及影響它們的因素都是隨機變量,它們有各自的分佈形式,應該用概率統計理論和方法來處理,才能使疲勞強度在工程中所確定的壽命,成為保證某一概率下的可靠壽命。Fatigue test indicates that strain multiplier have not been damaged for fatigue in the service life of fatigue life gage, fatigue response of fatigue life gage can be derived from the strain amplitude equal to specimen strain multiplied by amplification coefficient of strain multiplier
疲勞實驗研究表明,在疲勞壽命計工作壽命內,應變倍增器無疲勞破壞情況,疲勞壽命計疲勞響應可由靜載標定放大倍數乘試件表面應變后所對應的等幅應變值得到。Stress concentration measure on the model of boiler drum with two nozzles was executed and the testing results were compared with the asme criterion, experiential value and the value of finite element method respectively. this measurement result provides direction for evaluation of stress amplitude
設計模擬汽包進行應力測試,並與美國asme規范和經驗公式計算值、有限元計算結果進行比較,為后續的低周疲勞壽命估算時交變應力幅值的確定提供依據。In this paper, the strength theory is adopted to analyze the stress of the pressure component of boiler, and the calculation method of metal fatigue and creep is adopted to estimate the life loss of the boiler. meanwhile, the short - cut calculation method is put forward which can meet the requirement of on - line monitoring. on the basis of above, the on - line monitoring and management system of boiler life is developed
本文採用強度理論和疲勞、蠕變壽命計算方法,分別對電站鍋爐的爐外、爐內主要承壓部件進行了應力分析和壽命計算,並提出滿足在線監測要求的簡化計算方法,在此基礎上,開發了鍋爐承壓部件的壽命在線監測和管理系統。Fatigue strain gauge
疲勞應變計分享友人