輪載分佈 的英文怎麼說
中文拼音 [lúnzǎifēnbù]
輪載分佈
英文
wheel load distribution-
Based on the theories of gear engagement, contact analysis, friction and heat transfer, a three - dimensional finite element model of gear tooth was established to investigate temperature distributions and variations along the contact path over a range of applied loads and operating speeds with consideration of lubrication conditions. sensitivity analysis of surface temperature to gear configuration, frictional heat flux, heat transfer coefficients, and oil and ambient temperature was conducted and the major parameters influencing surface temperature were evaluated
本文基於齒輪嚙合原理、輪齒接觸分析、摩擦學和傳熱學,以有限元分析方法和理論分析計算相結合為手段並以實驗測量結果作為參考,建立了適用於工業應用並具有較高計算精度的高速齒輪傳動輪齒溫度分析的模型和方法,系統地分析了輪齒本體溫度的大小和分佈以及齒輪幾何、載荷及轉速和潤滑冷卻條件等對輪齒本體溫度的影響。Current nod external nomal method can accurately solve the initial clearance of contact curved surface. the accurate analysis of load distribution, longitudinal load dispersion and contact patterns to spiral bevel gears has been deduced, and that the variation of the contact center of loaded spiral bevel gears and the contact center of non - loaded spiral bevel gears has been analysed
當前節點外法矢法可以精確計算接觸曲面的初始間隙量,本文用這一方法對螺旋錐齒輪齒間載荷分配、齒向載荷分佈以及接觸區形狀進行了精確分析,而且分析了加載情況下螺旋錐齒輪齒面接觸中心點軌跡與無載下螺旋錐齒輪接觸軌跡的變化。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。The critical error has been found through computation, which is the error circling the gear. the load sharing characteristics of two kind of star - type gearing train has been determined through comparison. based on computation, the load sharing capability of two - stage external gear train is better than that of two - stage internal and external gear train
其次,從靜力學的角度分析了各誤差對系統均載性能的影響,比較了各誤差對系統均載性能影響的大小,得到了較大的影響系統均載的誤差因素,即圓周方向分佈的誤差;比較了兩種星型齒輪系統的均載性能,根據計算結果,兩級外嚙合傳動系統的均載性能要好於兩級內外嚙合傳動系統。The characteristics of the intrinsic frequency distribution of the framed steam turbine - generator set foundation are summarized ; it can been seen that the base plate of the framed foundation does not have much effect on the dynamic response of the foundation, and that the " amplitude method " is better than the " resonance method " among dynamic analysis methods. when designing a framed foundation, as long as the load - bearing capacity and stability is ensured, a flexible pillar is better, the amplitude of vibration can be controlled through adjusting the particle quality in foundation design
論文最後總結了框架式汽輪發電機組基礎固有頻率的分佈特點;指出框架式基礎底板本身對基礎的動力響應影響不大,認為動力分析方法中振幅法優于共振法;並指出框架式基礎設計時,在滿足承載力和穩定性的前提下,柱子應以柔為佳;設計中可以通過調整質點的質量來達到控制基礎振幅的目的。Given the rotational speed of the driving wheel, the temperature in the contact zero rises evidently as the load is increased. given the load, however, this temperature rises faintly as the rotational speed of the driving wheel increases. when the modulus is small and rational rate is high, the change of the rational speed and load have the apparent influence on the temperature distribution, but when the modulus is larger and rational rate no larger than 1. 0, the above changes have negligible influence on the temperature distributions
當主動輪轉速一定時,隨著載荷的增加,接觸區的溫升明顯增加;當載荷一定時,隨著主動輪轉速的增加,接觸區的溫升卻無明顯變化;當模數較小、傳動比較大時,轉速和載荷的變化對接觸區溫度分佈的影響比較明顯;但當模數較大而傳動比i 『 1時,轉速和載荷的變化對溫度分佈影響較小。Firstly, the paper introduces the development and application of computer graphics & image technique, discusses the principle and method of cg and digital image processing, such as matrix of the graphic transformation, homogeneous reference frame, sampling and quantization of the image, file format of the image, template operation, etc. secondly the paper introduces the purpose and method of image enhancement processing, explains the each occasion of those methods such as threshold transformation, smoothing processing, sharpening processing, analyzes and contrasts the processing results of object image. thirdly, the paper introduces the method of mathematics morphologic, edge detection and thinning processing, attains character description of image and character dots of the contour. fourthly, the paper processes the coordinate transformation to character dots and basic splines fitting, imports correlative condition to devise meshing line and meshing track
本文首先介紹了計算機圖形圖像技術的發展與應用情況,對計算機圖形學和數字圖像處理的一些基本理論和方法如圖形變換矩陣、齊次坐標系、圖像采樣和量化、圖像文件格式、模板操作等內容進行了討論:然後對圖像增強處理的目的和方法進行了介紹,對諸如閥值變換、平滑處理、銳化處理等方法的應用場合進行了說明,並對實物圖像的處理結果進行了分析與比較;接下來介紹了數學形態學方法、對增強后的圖像進行邊緣檢測的方法和圖像的特徵描述方法,並獲取輪廓的特徵點:隨后對獲取的特徵點進行坐標變換,並進行b樣條曲線擬合,引入相關條件生成齒輪副的嚙合線及嚙合軌跡:最後引入等值線和區域填充表示方法,並以等值線和區域填充的形式對弧齒錐齒輪嚙合模擬的載荷分佈情況進行了直觀的表示。Applying the computer program developed by this paper, and choosing the real values of the gear transmission, this paper has completed more than 50 sets of calculations of the thermal elastohydrodynamic lubrication based on the non - newtonian fluid. the following conclusions can be drawn according to the computational results : 1, when the gear teeth are engaged at the pitch point, the changes of both the gear rotational speed and the load have little influence on the pressure distribution and the film shape, but they have large influence on the film temperature distribution
應用本文研發的計算機程序,選用齒輪傳動的實際參數,先後進行了50餘組的基於非牛頓流體的熱彈流潤滑計算,所得的主要結論如下: 1 、當齒輪在節點嚙合時,齒輪轉速及載荷的變化對壓力分佈口太原理工大學碩士學位論文和油膜形狀的影響不大,但對溫度分佈有明顯的影響。The result of study shows that there are rather big effects on the statistics of load spectrum of gear by considering the load distribution among gear teeth, and lowered the result of prediction on bending fatigue life of gear
研究結果表明,考慮齒間載荷分佈對齒輪載荷譜的統計特徵有較大影響,並降低了齒輪的彎曲疲勞壽命預測結果。On the basis of measured results of contact pressure on abundant literature and the computed results in this paper, simplified contact pressure models have been put forward. the finite element program msc. nastran was selected to analyze the response of pavement under the two modelled loads. the effects of axle load and material properties were studied, and the effects of truck load on permanent deformation and fatigue crack were also discussed
本文首先根據輪胎胎面花紋類型的不同,提出接觸面的簡化模型;然後參考相關輪胎與路面接觸壓力的測試結果,並結合本文的測試結果及輪胎與路面接觸壓力的模擬計算結果,提出接觸面內的壓力分佈模型,即輪胎作用於路表的荷載簡化模型;接著利用有限元軟體msc . nastran對瀝青路面在該荷載模型作用下的響應進行計算分析,還討論了軸載的變化及路面材料參數的變化對路面結構響應的影響,並且對車輛荷載對車轍和疲勞裂縫的影響進行探討。It is proved by the analysis that, during the symmetric landing of that airplane, the impact load of the after main landing gear is the largest among those landing gears and the nose landing gear comprised of about 18 percent of the total impact load
分析表明:該樣機在對稱著陸過程中,後主起落架承受的地面載荷最大,前起落架輪胎僅承擔了全機18 %的沖擊載荷,載荷分佈較普通的前三點式起落架有明顯的改善。分享友人