疲勞曲線 的英文怎麼說
中文拼音 [píláoqūxiàn]
疲勞曲線
英文
curve of 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...
- 曲 : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 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
- 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
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Differential equation approximation of fatigue crack growth curve
疲勞裂紋擴展曲線的微分方程擬合法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。3, analyzing the stress field of the aero - engine case under the given loads, the fatigue life of the case is predicted through the presented fatigue model and the method of " nominal stress "
用該模型對孔徑為5mm層合板的s ? n曲線進行疲勞壽命預測及試驗驗證。 3 、首次對某型發動機t300 kh - 304復合材料機匣的主鋪層在給定工況下的疲勞壽命進行預測。Among the results of these researches, cylindrical gears with curvilinear tooth trace have merits as follows : higher bending stress, low noise, better lubrication conditions, and no thrust forces. so this kind of gear can be considered to substitute the helical gear and herringbones
本文提出的弧齒線圓柱齒輪是一種新型齒輪傳動形式,具有傳動平穩、噪聲低、潤滑性能良好、輪齒彎曲疲勞強度大的特點,因此該齒輪可以作為斜齒輪和人字齒輪的替代品用於高速重載場合。Generalized fatigue constant life curve and two - dimensional probability distribution of fatigue limit
廣義疲勞等壽命曲線與二維疲勞極限概率分佈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。Based on the principle of the cooperation, i. e, the correlative stochastic equations are located on the same probability level, the linear regression with fuzzy weight analysis is adopted to fit the test data, and the three - parameter stress - life curves of the mean and the mean square deviation are obtained
根據協同原理,即相關聯的隨機方程動態地處于同一概率水準,採用模糊隨機加權線性回歸方法對試驗數據進行擬合,得到了三參數的應力-壽命模型均值和均方差曲線,從而求得在給定應力下各可靠度的疲勞壽命。It achieves full test automation from calibrating, running, failure diagnosis and data processing, which establish it an intelligent test system. in the software, a curve fitting program which based on the system ' s principle which can greatly improve the calibration precision and a safl mathematical statistics program for the test data are made
在試驗系統軟體設計上,結合試驗機原理,採用基於原型函數的動態標定數據曲線擬合提高了載荷標定的精度;通過對比各種曲軸試驗數據的處理方法,同時考慮在實際運用中的效果,計算機統計採用了疲勞極限統計分析( safl )法。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。With metal fatigue in material mechanics, this paper deduces the limestone fatigue curve of longmen grottoes by means of marble s one within the error permission. by the experiment elects the crucial factors of current vibration environment in longmen grottoes, the author contrasts the result of the experiment with its fatigue curve referred above and analyses the fatigue effect of longmen grottoes. finally, it is pointed out that after longmen grottoes have being suffered weathering and water - erosion more than 1500 years, the vibration environment is becoming an crucial factor leads to fatigue effect, especially in those weak surface carvings just like the crossings of several rifts, serious weathering places, etc
借鑒材料力學中金屬疲勞破壞的研究手段,在誤差允許范圍內用大理巖疲勞曲線推導出門石窟石灰巖疲勞曲線。通過對石窟實際振動環境中典型要素的抽取和振動試驗,將試驗結果與疲勞曲線進行對比,分析了門石窟的疲勞破壞效應。文章指出,在經歷了1500多年的風化和流水溶蝕后,振動環境已成為導致門石窟某些薄弱點如多條裂隙交叉點嚴重風化酥解的壁面雕刻品等產生疲勞破壞的重要誘發因素。( 3 ) the equivalent stress, which is from the coefficients for the spectrum - loads and miner linear accumulated damage rule, an approach for material probabilistic fatigue strength for spectrum loads is suggested. this approach are established by the composed of p - c - s - n curves for extreme maximum model
( 3 )根據譜載荷系數和miner線性累積損傷準則得到的譜載荷下的當量應力的關系,與極大值模型的p - c - s - n曲線相結合,提出了譜載荷下材料概率疲勞強度的表達式。Results showed that the curves of fatigue / creep have three stages at the 75 % stress and the curves of fatigue / creep have two stages at the 55 % stress
結果表明,在交變載荷最大值為75 %的應力水平下,其疲勞蠕變斷裂曲線為3段式曲線;在55 %的應力水平下, 15小時內其疲勞蠕變曲線為兩段式曲線。All experiments were completed by use of loading equipment designed by myself. this equipment has been proved to be efficient, steady and the test data are reliable. based on analysis of the 58 data and 35 domestic data, we got the s - n curve in general use, and established the design method of fatigue
本文成功地得到了32個常幅及26個變幅試驗數據,通過與國內已有數據的回歸分析,得到了通用的s - n曲線,建立了螺栓球節點網架結構的疲勞設計方法。The relations between the dummy stress amplitude and fatigue life can be easily developed. and then, the bhw - 35 steel fatigue design curve can be obtained according with asme criterion and bs5500 criterion. compared ~ vith the design curves provided by the asme and bs5500 criterion, the curve got in this paper provides reliable direction for the fatigue design of boiler drum, which used on the altering generating power plant set
將焊縫材料的虛擬應力幅與壽命關系,按照asme和bs5500規范的方法分析得到bhw ? 35鋼疲勞設計曲線,並與asme和bs5500規范中的設計曲線進行比較,為我國調峰機組410t / h鍋爐汽包疲勞設計提供可靠的實際依據。On the basis of finite element numerical simulation technology and s - n curve data base of welded joint, the course of fatigue test of physical prototype was simulated with computer and the fatigue life of welded structure was predicted, so as to let the development of anti - fatigue design becoming possible in the designing stage of product
基於有限元數值模擬技術及焊接接頭s - n曲線數據庫,在計算機中模擬物理樣機的疲勞試驗過程,預測焊接結構的疲勞壽命,使產品在設計階段開展抗疲勞設計成為可能。According to the measuring result of fatigue fracture fractal dimension, it gets the relationship curve of ti alloy tc11 welded joint fracture fractal dimension with loading strain range, and the method of fatigue life forecasting fatherly. 3
根據疲勞斷口分維數的測量結果,獲得了tc11鈦合金焊接接頭斷口分維數與其疲勞壽命的關系曲線,以及斷口分維數與最大加載應變之間的關系曲線,給出了進一步疲勞壽命預測的方法。P - s - n curve can be obtained by predicting s - n curve and adding to a few fatigue tests. these methods can be reference for engineering application
這些方法以s - n預測曲線為基礎,只需補充少量疲勞試驗即可獲得p - s - n曲線,對工程應用有一定參考價值。Research on fatigue curves for pre - corroded aircraft structures
飛機結構預腐蝕疲勞曲線研究Research on the generality of the pre - corrosion influence coefficient curve of fatigue life
疲勞壽命預腐蝕影響系數曲線通用性研究S n curves for lc4cs aluminum alloy and 30crmnsini2a steel pre - corroded in atmospheric environment
鋼在大氣環境預腐蝕后的疲勞曲線分享友人