fatigue factor 中文意思是什麼

fatigue factor 解釋
疲勞因素
  • fatigue : n 1 疲乏,勞累;勞苦;累活。2 【機械工程】(金屬屢經打擊等后的)疲勞。3 【醫學】(組織、器官等對...
  • factor : n 1 〈英國〉經銷人;(代客買賣收取傭金的)經紀人;代理商;代辦人;〈蘇格蘭語〉 土地經管人。2 要素...
  1. First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed

    本文介紹了微動損傷的機理和微動疲勞壽命的研究方法;利用ug軟體對燕尾榫聯接結構創建了參數化實體模型;基於ansys軟體平臺求解彈性接觸問題,獲得了榫聯接結構接觸應力及接觸狀態量的分佈;在已有微動疲勞壽命預測模型的基礎上,引入載荷頻率影響因子,對低周、高低周復合載荷作用下的燕尾榫聯接結構進行了微動疲勞壽命的預測,與試驗結果對比表明採用本文提出的方法預測榫聯接結構的微動疲勞壽命是有效的。
  2. Based on the aircraft structure fatigue theory, the article discussed the theoretical basis of methods that are usually used for aircraft structure fatigue crack - forming life estimation, i. e. the stress severity factor approach ( normal stress approach ), the local stress & strain approach, detail fatigue rating approach ( dfr ). also the processes of life estimation of these approaches are studied in the article

    文章在簡要介紹飛機結構疲勞強度理論的基礎上,對目前飛機結構勞疲勞裂紋形成壽命估算常用的應力嚴重系數法(名義應力法) ,局部應力應變法,細節疲勞額定值dfr法的理論依據作了較詳細的論述,同時對這些估算方法進行壽命估算的過程與步驟也作了詳盡的闡述。
  3. 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。
  4. 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。
  5. Finally, the distribution discipline of the cyclic changing temperature damage factor under the conditions of low temperature through the equivalent assumption and energy equivalent model based on damage mechanics theory. the fatigue life of the 4cm depth sawed cracking road is obtained under the conditions of - 15 based on the shenyang - dalian highway. in this paper, the inhomogeniety of asphalt concrete resulting from temperature change is considered, when the influence of the temperature change on the semi - rigid asphalt pavement concrete is analyzed

    最後,基於損傷力學理論,通過等效應變假設原理和能量等價模型,得到低溫下循環變溫損傷因子的分佈規律,以沈陽?大連高速公路的預鋸縫為工浙江大學博士學位論文廣義荷載作用下道路與軟基共同作用研究王金昌2003年5月程背景,預測了4cm深的鋸縫在一巧路表變溫作用下的疲勞壽命。
  6. 3. the mid - span deflection of slight corrosion specimens is smaller than that of non - corrosion specimens on the static loads and the fatigue loads ; the maximum crack width of slight corrosion specimens is larger than that of non - corrosion specimens ; fatigue life of slight corrosion specimens is shorter than that of non - corrosion specimens ; the corrosion of re - bars is a sensitive factor to fatigue life

    ( 3 )輕微銹蝕試件梁的跨中撓度在靜載和循環荷載下比未銹蝕梁小;輕微銹蝕試件梁的最大裂縫寬度比未銹蝕試件梁的最大裂縫寬度大;輕微銹蝕試件梁的疲勞壽命比未銹蝕試件梁的疲勞壽命降低,鋼筋銹蝕是疲勞壽命的敏感因素。
  7. Their results indicate that the psychological burden of a penalty shootout is the most important factor in whether or not a player scores ? more so than skill, fatigue or experience, which are so crucial in other areas of the game

    他們的研究結果顯示,盡管在比賽的其他階段,技巧、疲勞程度或經驗是至關重要的,但是點球決勝時,決定進球與否最重要的因素卻是心理承受力。
  8. Energy estimating approach of fatigue crack initiation life for welded steel structures is obtained by using molski - glinka energy density equation, introducing the worst - case fatigue notch factor, and considering the effects of residual stress on fatigue

    本文採用應力應變能密度的molski - glinka方程,建立了一種預測焊接鋼結構疲勞裂紋形成壽命的能量方法。該方法引入了極值疲勞切口系數,並考慮了焊接殘余應力對裂紋形成壽命的影響。
  9. The other factor is enlargement fatigue within the union and the public reaction against the prospect of even more countries joining the 25 - member club ( soon to be 27 )

    另一個因素在於歐盟內部對歐盟擴大的疲勞感以及公眾對更多國家入盟(如今25個成員國很快就要增加到27個)的反對態度。
  10. The research of high performance pavement concrete ( hppc ) is done in two sides. one is mixture design, the other is pavement performance. the mixture design and design flowchart of hppc is given on the base of nc with the consideration of characteristic of both hppc and nc. the grow law, influencing factor and formation mechanism of hppc strength is analisised by perpendicular experiment. in the same, the fatigue equations are set up for hppc and hppc i on the base of fatigue experiment. the fatigue mechanism of hppc is analysised by damage mechanics and fracture mechanics. brittleness, frost resistance and abrasion resistance of hppc is researched with the camparition to nc i. at last, the economic analysis of hppc is done by two kinds of way

    結合高性能混凝土與普通路面混凝土的特點,提出了建立在普通路面混凝土基礎上的高性能路面混凝土配合比設計方法,給出了設計流程;通過正交試驗(強度試驗) ,分析了高性能路面混凝土的強度發展規律、影響因素與形成機理;同時,根據疲勞試驗結果採用雙參數weibull分佈模型分別建立了高性能路面混凝土和高性能路面混凝土(沒有摻加硅粉)疲勞方程,應用損傷力學和斷裂力學,分析了高性能路面混凝土的疲勞機理;並採用了對比分析方法,研究了高性能路面混凝土的脆性、抗凍性和耐磨性等。
  11. The landing impact has been recognized as a significant factor in structural fatigue damage, dynamic stress on the aircraft airframe, and crew and passenger discomfort

    而這種沖擊載荷被認為是造成飛機及其起落架結構發生疲勞與振動破壞、引起乘員不舒適的重要因素。
  12. Based on the linear fatigue cumulating damnification theory, the calculation of fatigue cumulating damnification intensity was also modified with main bar corrosion rate, which is the most important factor for fatigue lifespan of reinforced concrete beams

    另外考慮到銹蝕率是影響疲勞壽命的最重要因素,基於線性累積疲勞損傷理論,建立了銹蝕鋼筋混凝土梁的疲勞累積損傷度修正公式。
  13. Simultaneously, the distinct effect of every factor is studied in the paper. in this text, based on the lime - fly ash stabilized aggregates mixture design, the pavement behavior and performance of designed mixture is studied and contrasted with the mixture which is recommended by the design specification of highway asphalt pavement, including mechanical performance, stableness, anti - brushing performance, the anti - crack performance and fatigue performance

    在配合比設計的基礎上,研究了骨架密實型二灰碎石的力學性能、穩定性能(水穩性和冰凍穩定性) 、抗收縮性能、抗沖刷性能和疲勞性能,並與《公路瀝青路面設計規范》推薦級配二灰碎石混合料的路用性能進行了對比。
  14. Fatigue notch factor

    疲勞凹痕因數
  15. Lack of quality sleep is a critical factor leading to the onset of fatigue

    睡眠質量低下是疲勞產生的主要因素。
  16. A better method for determining fatigue scatter factor of aircraft structures

    飛行器結構疲勞壽命分散系數理論值確定的一種方法
  17. In the account and analyses, we take into account the temperature stress in the cases : the base course is not cracking and the base course has been cracked. according to case of the base course cracked, the stress intensity factor of crack tip has been counted. according to case of the base course not cracked, the bend experimentation, the snap experimentation, the fatigue experimentation and the compress experimentation have been done, in addition, according to the latter, the finite element analyses have been done to demonstrated the temperature stress and the prime location of the glasgrid

    在分析計算中,主要考慮基層開裂前和基層開裂后兩種情況下的溫度應力場,對基層開裂后,裂縫尖端的應力強度因子進行了計算;對基層開裂前的溫度應力場進行了室內小梁彎曲實驗、劈裂實驗、疲勞實驗、壓縮實驗,結合有限元分析結果,論證了基層開裂前的溫度應力場及格柵的最佳鋪設位置;研究成果在寧夏古王路上進行了驗證。
  18. Our results suggested the accumulation of ft in muscle was not the only factor that affected " spectrum shift " during muscle fatigue. the decline of the firing rate of motor units, the synchronization of motor units and an inadequate cns drive may be the important mechanisms that attributed to the change of semg signal during isometric contractions

    本研究認為肌肉疲勞過程中h ~ +濃度升高不是導致肌電功率譜曲線左移的唯一因素,運動單位放電頻率下降、中樞驅動減弱和運動單位活動的有序性或同步化可能是肌肉活動時肌電信號變化的一種重要機制。
  19. Mineral spring water active factor with curing effect is used, which can eliminate skin fatigue and injuries of skin gained in the daytime effectively, enhance the biological rhythm of skin at night, promote the renewal of skin cells, offer intensive moisturizing at night, provide skin with the most effective care at night, relieve skin stress instantly, and leave skin soft and active again on the next day

    採用了具有修復作用的礦泉水活性物質,它能有效消除肌膚在日間積累的疲勞及傷害,加強肌膚夜間生物節律,促使肌膚細胞更新及提供高強度的夜間補水,給肌膚最有效的夜間呵護,皮膚緊張即得到減輕,達到最佳舒服柔軟的效果,並於次日即回復肌膚活力。
  20. As the equilibrium is formed by vision, vestibule and sensation system, the change of gravity reflects the interaction of different system and central nervous system. based upon the neuro - physiologic mechanism, the change of balance stability when drivers are in fatigue can be identified. moreover, fatigue factor can be identified and analyzed

    人體重心的變化可真實地反映各感覺系統運動系統功能的相互作用和中樞整體功能狀態,駕駛員疲勞時平衡穩定性發生改變,正是基於這一神經生理機制對駕駛疲勞進行判別分析,達到對疲勞等因素的診斷與評價。
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