概率壽命 的英文怎麼說
中文拼音 [gàilǜshòumìng]
概率壽命
英文
expectancy life-
Particularly cigarette smoking is associated with a shortened life expectancy.
尤其是吸卷煙會縮短人的概率壽命。Analysis to the probability distribution of leaf spring fatigue life
鋼板彈簧疲勞壽命概率分佈分析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。This method can be applied to the data of product usage and life test, namely, to access the confidence lower limit for the mean residual life under the condition of product normal working period at a certain given probability, which gives the reference for the plan of instrument life prolong and maintenance
使用該方法，利用產品的使用及壽命試驗數據，即可對產品在給定概率下和正常工作一定時間后的平均剩餘壽命置信下限進行評枯，為延壽使用及維修計劃的制定提供依據。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 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。Then, with the concept of accumulated failure probability, the proposed approach combines the least ? quares method with bayes " theorem, takes advantage of the parameter estimation for single weibull distribution to each derived subgroup data set, and estimates the parameters of each subpopulation. the estimates given by this paper also satisfy the maximum likelihood equation. the mean time to failure and the reliability estimation of the mixed population are given
然後通過利用累積失效概率等概念，對每個導出的子組數據集聯合運用最小二乘法、貝葉斯定理和對單一威布爾分佈的參數估計法，從而得到每個子總體的滿足極大似然原理的參數估計，給出了該混合總體平均壽命和可靠度的估計。On the one hand, there is grea t influence of temperature field factor and reliability theory on the wear process of parts, which cannot be ignored ; on the other hand, because of the uncertainties of outer circumstances were longevity should adopt the expression form of probability longevity
一方面，溫度和應力一樣對零件的磨損過程影響很大，都應納入磨損的計算過程中；另一方面，外界環境的不確定因素很多，磨損壽命應該採用概率壽命的表述形式。Then, probability prediction model of durable life is founded. through discussing the probability characteristics of influencing factors, the law of durable reliability is analyzed, and the prediction method is validated by the experimental data
建立了基於規定可靠指標的混凝土耐久壽命的隨機預測模型，通過探討影響因素的概率分佈，分析了耐久可靠性的發展規律，運用工程實際檢測數據對本文提出的耐久壽命方法進行了驗證。Based on the current research achievements on durability under chloride environment, probability theory, structural reliability theory, concrete structures theory, neural network theory and structure dynamic theory are employed comprehensively in this dissertation. some problems of durability of reinforced concrete structures under chloride environment were studied through the exploitation of experimental data, the rule of chloride ingress and steel bar corrosion, the performance of corroded member, and residual life prediction. the main issues and results in this dissertation are as follows : 1 、 the probability method for the prediction of durable life based on the stipulated reliability index for concrete structures under chloride environment is presented in this dissertation
本論文在國內外對氯離子侵蝕環境下混凝土結構耐久性研究成果的基礎上，綜合運用概率理論、結構可靠性理論、混凝土結構理論、神經網路理論、結構動力學理論等基本理論和方法，結合實際檢測數據，按照氯離子侵蝕、鋼筋銹蝕、銹蝕構件性能、銹蝕構件壽命預測的思路對氯離子侵蝕環境下鋼筋混凝土結構耐久壽命預測的有關問題進行了深入系統地研究，完成以下主要研究工作並取得相應成果: 1 、提出了氯離子侵蝕下基於規定可靠指標的混凝土結構耐久壽命的概率計算方法。Sixthly, the monte - carlo method is used for calculating the failure probability of durable failure under different service time, and drawing a plot of relationship between failure probability and service time. according to the plot, the service life based a acceptable failure probability can be found easily
第六，用monte - carlo方法對不同使用年限耐久性失效概率進行計算，得到使用年限和失效概率的關系曲線，並由關系曲線得出氯離子侵蝕環境下鋼筋混凝土構件在指定可接受失效概率水平下的耐久壽命。Through the life analysis of mortality rate in different brand age, brands group life can be anticipated in order to explorate survival evolution rules of brands group
運用生命表可以計算品牌的死亡概率和品牌群體壽命的預期，對行業品牌群體進行壽命分析，探索品牌種群生存演化規律。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
在研究疲勞過程中材料強度退化規律的基礎上，建立了一個強度退化模型.對其進行隨機化處理，得到控制強度退化過程的隨機微分方程.在一定假設條件下，獲得了剩餘強度概率密度函數的封閉解，並推導出疲勞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.與試驗數據的比較結果表明，本文的模型和方法是合理的A second, larger study of men in their 70s found that those who avoided smoking, obesity, inactivity, diabetes and high blood pressure greatly improved their chances of living into their 90s
還有一個更大規模的男性第70年段研究發現：不吸煙，非肥胖，非孤寡，糖尿病和無高血壓者極大地提高了壽命概率，可活動90以上。( 1 ) from the considering of the probabilistic model being actually established by randomness of the average relations fitting into the test data, the appropriated statistical distributions for the fatigue lives are explored by the errors, which is different from the commonsense
（ 1 ）概率s - n曲線本質上是在最佳擬合曲線（即均值s - n曲線）的基礎上，考慮誤差的隨機性建立的。本文首次從誤差數據的角度研究了疲勞壽命的良好假設分佈模型。Finally, applying probabilistic fracture mechanics approach ( pfma ), the reliability analysis is carried out for helicopter metal material ( aluminum alloy ) structure having initial cracks
最後，應用概率斷裂力學方法（ pfma ） ，對含初始裂紋體的直升機金屬材料（鋁合金）構件的疲勞裂紋擴展壽命進行可靠性分析。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。Based the result of calculation and analysis in this paper, it is feasible that predicting of the service life of reinforced concrete component exposed to chloride environment with a probability based method. the result of analysis is consistent with the changing rules of service life in practice. probability based limit state method is used for service prediction. it is more reasonable than a deterministic model and satisfied with the required method of national structure designing uniform code
理論研究和實例分析的結果表明，本文建立的基於概率的極限狀態分析方法的氯離子侵蝕環境下鋼筋混凝土構件耐壽命的預測方法是可行和有效的，計算結華僑大學申請碩十學位論文果反映出工程實際中構件耐久性壽命的變化規律；本文使用的基於概率的極限狀態分析方法比確定性計算方法更科學，與我國現行結構設計規范中所規定的設計思想保持一致。The supercapacitor is a new type of electrochemical energy storage devices between rechargeable batteries and traditional electrostatic capacitors, and it has high power density, high charge / discharge efficiency and long cycle life
超大容量電贗電容器是一種性能介於電池和傳統靜電電容器之間的新概念高功率儲能器件，具有功率密度大、充放電效率高、循環壽命長等特點。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。分享友人