疲勞概率分析 的英文怎麼說
中文拼音 [píláogàilǜfēnxī]
疲勞概率分析
英文
probabilistic fatigue analysis- 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...
- 概 : Ⅰ名詞1 (大略) general outline 2 (神氣) manner of carrying and conducting oneself; deportment ...
- 率 : 率名詞(比值) rate; ratio; proportion
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 析 : Ⅰ動詞1. (分開; 散開) divide; separate 2. (分析) analyse; dissect; resolve Ⅱ名詞(姓氏) a surname
- 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
- 概率 : [數學] probability; chance概率論 probability theory; theory of chances; 概率曲線 probability curv...
-
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。Probability fatigue is a subject that studies the fatigue damage of machine accessory and structure component by the method of probability and statistics and analyzes their fatigue intensity according to the uncertainty and distribution of their fatigue damage
概率疲勞是用概率統計方法研究機械零件和結構構件的疲勞損傷,根據其存在的不確定性因素及分佈進行疲勞強度分析的一門學科。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。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。However, the fatigue of structure is such a complicated phenomenon affected by many uncertainties that it is necessary to analyze the structural fatigue from the point of probability and statistics. probabilistic fracture mechanics is a branch of fracture mechanics, so the various parameters affecting the fatigue propagationg a re considered as randomized
作為斷裂力學的一個新的分支,概率斷裂力學從概率和統計的角度對結構進行疲勞可靠性分析,充分考慮了疲勞破壞過程中出現的不確定因素,將影響疲勞裂紋擴展速率的各參數看作是服從某一種概率分佈的隨機變量。This paper, regarding the asphalt pavement in the zhoukou region as the study object, according to the prevalent norms ( specifications for design of highway asphalt pavement ), with the beginning of the pavement performance and the transportation investigation, totally and systematically analyzes the traffic parameters and the destroying reason of pavement at the early stage in the point of fatigue property and limit strength, gives the concepts and methods of the growth rate of equivalent axle load action time, seasonal modification factor and overload factor, proposes the method of axle load conversion on the condition of heavy loading. on this basis, it proposes the design method adapting to asphalt pavement construction, explains the steps of thickness computation of construction with the combination of engineering example, finally verifies thedesign method in the paper by test road. theory and practice both prove that the reasonability of pavement structure style and the reliability of design method in the paper can adapt to the present heavy loading and overloading traffic conditions, have highly theoretical and practical value
本文以周口地區瀝青路面為研究對象,以現行《公路瀝青路面設計規范》為依據,從路面使用性能和交通特徵的調查入手,從疲勞特性和極限強度出發分析了路面早期破損的原因,全面系統地進行了交通參數的分析,提出了當量軸次增長率、季節修正系數和超載系數的概念和方法,並提出了重載交通的軸載換算方法。在此基礎上,針對超載、重載交通從結構組合設計、結構厚度計算(包括疲勞強度標準和極限強度標準)等方面提出了適宜的瀝青路面結構設計方法,並結合工程實測,說明了結構層厚度計算的具體步驟,最後通過試驗路驗證本文提出的設計方法。理論與實踐均表明,本文提出的路面結構型式合理、設計方法可靠,能適應目前重載、超載交通的狀況,具有較高理論與實用價值。The fatigue life is determinate when determination methods are used to analyze fatigue. but the fatigue of structure is a much complicated phenomenon affected by many uncertainties. so it is necessary to analyze the structural fatigue from the point of view of probability and statistics
但是,結構的疲勞又是一個受到大量不確定因素影響的極其復雜的現象,因此,根據結構可靠性理論,從概率和統計的角度對結構進行疲勞可靠性分析是十分必要的。Fatigue safe control assessment method on steel crane structures in service is put forward based on fatigue dynamic reliability. after investigating and summarizing many engineering usage and appraisal. based on the miner accumulation damage model, in a fatigue reliability point of view, the remain fatigue life assessment equation in the ( technical specification for inspection, assessment and strengthening of steel structures ) ) ( yb9257 - 96 ) is analyzed, and the probabilistic meanings of the additional safe factor is proposed
4 、在上述工作的基礎上,基於疲勞動態可靠性,提出了鋼結構吊車梁疲勞安全控制評定方法;從miner累積損傷的定義出發,提出了在役鋼結構吊車梁疲勞剩餘壽命評估的可靠壽命評估方法,與現行《鋼結構檢測評定與加固技術規程》 ( yb9257 - 96 )中的安全期限壽命評估方法進行了分析比較,解釋了安全期限壽命評估方法的概率意義,通過算例說明了本文提出的可靠壽命評估方法的合理性。分享友人