s-n curve 中文意思是什麼

s-n curve 解釋
疲勞曲線
  • s :
  • n : 1. 【羅馬數字】90〈N＝90000〉。2. 【化學】＝nitrogen. 3. ＝North（ern）。N ＝nuclear 核的：N-waste 核廢料。
  • curve : n 1 曲線；彎曲；彎曲物。2 曲線規 （＝French curve）；【機械工程】曲線板；【棒球】曲線球；【統計學...
  1. Second, carried out the fatigue life test of the truck ' s front axles adopted grouping fatigue life test method, calculated the results on theory of probability stats, linear fitted the fatigue life data by means of the basquin equation and least squares method, acquired the mathematical model of s - n and p - s - n curve of the front axles

    其次，採用成組試驗法，對汽車前橋進行了疲勞壽命試驗，藉助概率統計方法對試驗結果進行了分析計算，得到了各試驗載荷下的疲勞壽命的正態分佈的均值和標準差，採用basquin關系式和最小二乘法對疲勞壽命數據進行線性擬合，得到了前橋的s - n和p - s - n的關系。
  2. 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。
  3. 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。
  4. 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。
  5. 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。
  6. 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。
  7. S - n curve movement - based life analytical model

    曲線移動法的壽命分析模型
  8. One point method, mean square curve method and the maximum likelihood principle to predict p - s - n curve for welded steel structures for arbitary survival rate are presented

    本文建立了任意存活率下焊接鋼結構p - s - n曲線預測的一點法，均方差曲線法極大似然法。
  9. Based on the predicting model of effective stress concentration factor, estimating methods of s - n curve for welded steel structures are set up under symmetrical and unsymmetrical stress cycle respectively

    本文以有效應力集中系數預測模型為基礎，分別建立了對稱循環和非對稱循環時焊接鋼結構s - n曲線的理論預測方法。
  10. According to this model, the s - n curve of a material can be measured with much less samples than before

    強度衰減模型結合強度增長模型，可以為基於結構強度潛力充分發揮的輕量化設計提供技術指導和評價依據。
  11. The s - n curve, the mathematical relationship of bend fatigue strength or life to strengthening loads and strengthening cycles, the maximum increments of fatigue strength and life were obtained by experimental digital processing

    通過對試驗數據的處理，得到了兩種結構彎曲疲勞強度的s - n曲線、彎曲疲勞強度和疲勞壽命與強化載荷、強化次數之間的數學關系，以及經過低載強化后彎曲疲勞強度和疲勞壽命提高的最大幅度。
  12. This paper measures the probability fatigue life of steel wh530 and steel wh6 1 odl which come from wuhan steel and iron company and make out their p - s - n curve based on the basic principle of probability fatigue

    本文運用概率疲勞的基本原理，對武漢鋼鐵公司wdl鋼種中的wh530鋼和wh610d2鋼的標準疲勞試樣，通過成組試驗方法，測定上述兩種材料的概率疲勞壽命，分別做出他們的p - s - n曲線。
  13. In first part of the thesis, by a review of the research on aircraft sonic fatigue, the formulas for calculating natural frequencies of the typical aircraft skin - panel structure with four edges simply - supported or four edges fixed - supported were drawn, the response of displacement and stress was analysed under the condition of random white noise loading with the steady - state or unsteady - state. the procedure how to use data of s - n curve under constant loading for predicating the fatigue life of skin - panel subjected to random loading was shown

    通過對聲疲勞問題研究的回顧，根據典型飛機蒙皮壁板模型，整理了四邊固支，四邊簡支兩種邊界條件下多階模態固有頻率，非平穩及平穩隨機白噪聲載荷下的位移和應力響應，以及如何從等幅s ? n曲線求得隨機載荷應力下的疲勞壽命。
  14. This model offers a new and simple method for measuring s - n curve and fatigue limit of a material or a machine part

    該模型提供一種新的測定材料和結構應力（載荷）壽命曲線的簡易方法。
  15. Study the broad sense description and the estimation of the equation parameter of p - s - n curve. study the estimation method of the reliability range of the materials fatigue life under given reliability correspond to different stress level

    並利用數理統計理論，探討p - s - n曲線的廣義描述方法， p - s - n曲線方程參數的估計方法，以及對應不同應力水平下的材料疲勞壽命在給定置信度下的置信區間估計方法。
  16. The abilities of resisting the incubation of fatigue crack in ast101a and alti101a were tested with the high - cycle fatigue method. a method combining the maximum likelihood estimation method with the correlation coefficient method was suggested to analyze the fatigue life experimental data some of which were incomplete. the s - n curve and p - s - n curves were presented, and the influence of the loading history and the defects in specimen on fatigue life was discussed

    通過高周疲勞測試方法研究了ast101a和alti101a抵抗疲勞裂紋萌生的性能，把最大似然法和相關系數法結合起來處理不完全疲勞壽命數據，給出了ast101a的s ? n曲線、 p ? s ? n曲線和疲勞極限，討論了加載歷史、缺陷等對疲勞壽命的影響。
  17. According to the stress spectrum of weaking section in fatigue test and s - n curve of classic welding joint in this section, we establish a model of life calculating by the principle of fatigue damage equivalence, then we get the relationship between the cross sustaining device ' s actual utilizing life and the load recycle number in fatigue test

    根據疲勞薄弱部位在室內疲勞試驗中的應力譜及該部位典型接頭的s - n曲線，按照疲勞損傷等效原則建立交叉支撐裝置的壽命預測模型，得到了交叉支撐裝置實際運用壽命與室內疲勞試驗加載循環次數的關系。
  18. Adopting the method in this dissertation to obtain s - n curve can reduce fatigue experiments and helpful in gaining economic efficiency

    採用本文方法預測s - n曲線可以大量減少疲勞試驗，節省人力、物力和時間。
  19. The method to obtain a s - n curve is a cost and difficult work, statistic is applied very much. the bending moment is representation of fatigue value in test

    通過疲勞試驗和推導計算，確定了曲軸復合強化工藝方案為曲軸軸頸淬火加圓角滾壓復合強化工藝。
  20. It is feasible to predict the fatigue life of the structure in the critical location when the s - n curve of the fatigue life applied. the meanings and conclusions can effectively instruct the design of leaf spring system

    最後對模型採用疲勞壽命的s - n曲線法計算能較準確的預測出疲勞破壞發生的區域及結構的疲勞壽命，在實際應用中對鋼板彈簧的設計有重要的指導意義。
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