fatigue limit 中文意思是什麼
fatigue limit
解釋
疲乏強度-
For the manifold of sedan engine, the hest thermal fatigue properties can be obtained by keeping the percent of vermicular graphite at about 50 %, therefore it shouldn ' t he considered that the lowest e. g. percent limit of 50 % specified in chinese vermicular iron standard is too lower, and it is also not proper to take the v. g. percent as the basis for judging the level of production technology
摘要對轎車發動機排氣歧管而言，蠕化率控制在50 %左右可以獲得最佳的抗熱疲勞性能，因此不能認為我國的蠕鐵標準中規定的蠕化率高於50 %的要求偏低了，也不能把蠕化率的高低作為衡量工藝水平的依據。 -
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 -
Completely reversed fatigue limit
全交變疲勞極限 -
Bending stress fatigue limit
彎曲應力疲勞極限 -
Corrosion fatigue limit
腐蝕疲勞極限 -
Bending fatigue limit
彎曲疲勞極限 -
Based on stress concentration coefficient, fatigue notch coefficient, fatigue limit and range of allowed stress are obtained
在k研究工作的基礎上，求得相應的疲勞缺口系數k _ f ，進而推定高強螺栓的疲勞極限應力幅及其允許應力幅。 -
On the other hand, aluminum does not have a fatigue limit, and therefore aluminum bicycle frames can fail due to metal fatigue after a long enough time. titanium is extremely corrosion resistant
作為應用在自行車架上的高強度和低密度的鈦合金材料，它不僅會讓車架重量輕強度高而且會讓車架更經久耐用。 -
3. the crane load and fatigue strength are regarded as stochastic process, the fatigue dynamic reliability based on limit stress model and fatigue dynamic reliability based on accumulation damage model are established on the base of statistic analysis the fatigue load and resistance
3 、在對疲勞荷載與抗力統計分析的基礎上，視吊車荷載與疲勞強度為隨機過程，建立了基於極限應力模式的疲勞動態可靠性分析模型及基於累積損傷模型的疲勞動態可靠性分析模型。 -
On the foundation of analysis a quantity of experiments and theory home and abroad, the paper give a calculation formula for the cross - section anti - bending limit load capacity of reinforced concrete beam. at the same time, the paper discusses the establishment of fatigue load chart for the bridge structure and presents its calculation of stress chart
2 、在分析國內外大量試驗研究和理論分析的基礎上，給出了碳纖維布加固鋼筋混凝土梁正截面抗彎極限承載力的計算公式，詳細闡述了等幅疲勞荷載和變幅疲勞荷載下橋梁結構疲勞強度的計算方法。 -
In this dissertation, in allusion to the limit that the domestic analysis and studies of the body structure only concentrate on the static bend, torsion and some extreme conditions in nowadays and the studies on transient analysis of the whole vehicle that contains the suspension model, tire model and the road model are few, the applications of the fem on the analysis of the car body structure are studied. and in this dissertation the method of building connecting means models, the dynamic response of the body, the fatigue analysis of the body and the reforming measures of the body are deeply discusses
本論文針對目前國內車身結構分析的研究只限於對車身或車架結構在靜態扭轉、彎曲載荷以及幾種極限工況載荷作用等幾種情況的研究，對含有懸架、輪胎以及路面模型的整車瞬態響應分析的研究較少的實際情況，對有限元方法在汽車結構分析中的應用作了些研究工作，尤其是在車身連接件處理、車身動態響應、車身疲勞強度分析、車身結構改進方案等方面進行了較深入的探索。 -
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。 -
This study deals with the influence of rolling to strengthen the fatigue resistance nodular cast iron is less cost and easyer machining than steel, the fatigue resistance of crankshafts can be strengthen by useing deep rolling on the journals that be applied in the diesel instead of steel crankshaft. the study and information are limit in the literature about the roll internationally
國內對球鐵曲軸強化工藝研究尚且不足，球鐵曲軸經過滾壓復合強化，應用於中重型車用柴油機的研究是目前國內曲軸強化研究的課題之一。針對這種情況，本文中對某六缸柴油機球鐵曲軸滾壓強化過程進行分析、試驗和研究。 -
The main conclusions are as following : 1. specimens have four kinds of fatigue failure characteristics such as normal section crack width and truncated section crack width beyond the limit, the fatigue damage of steel bars. specimens ’ fatigue life is from 15 thousand to 1800 thousand
主要結論如下: 1 、試件出現了正截面裂縫寬度達到限值、斜截面裂縫寬度達到限值、鋼筋疲勞斷裂等疲勞破壞特徵，疲勞壽命介於1 . 5萬次180萬次。 -
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。 -
Effect of strain aging on fatigue limit of pre - strained carbon steel
桿大撓度屈曲的解析逼近 -
The quality of joint has much effect on the age limit of airplane. the fatigue strength can be improved by using interference - fit joint in metal joint - structure
連接質量極大地影響著飛機的壽命，干涉配合連接能成倍提高接頭的疲勞強度。 -
The content includes the study on the fatigue performance of the plexiglas, the compiling of the load spectrum of the canopy, the study on the evaluation of the fatigue life of the canopy glass, the study on the allowable limit of the scratch on the canopy glass and the study on the analysis method of the dynamic response of the bird impact on the aircraft windshield
所涉及的內容包括:有機玻璃疲勞性能研究、活動艙蓋載荷譜編制、座艙玻璃疲勞壽命估算方法研究、座艙玻璃劃傷故障容限研究、飛機風擋鳥撞動響應分析方法研究等。根據活動艙蓋載荷特性，提出用壓力傳感器測量活動艙蓋載荷的方法，並首次實現了活動艙蓋載荷譜飛行測量。
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