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The fatigue is analyzed for the SENT specimen of TA6V titanium alloy at different stress ratio and on different stress level by the general finite element analysis software ANSYS. The dangerous fatigue location is predicted by the nodal stress Y-direction of the hemicycle notch for TA6V titanium alloy SENT specimen. Based on the local stress-strain method and the material S-N graph, the nominal stress-strain of the specimen is converted to the local stress-strain of the dangerous location by the elastic and plastic finite element analysis, thus the fatigue life is estimated by Miner fatigue damage accumulation theory and compared with the fatigue test of small crack growth.
借助大型通用有限元分析软件ANSYS对TA6V钛合金SENT试样在不同应力比和不同应力水平下进行疲劳分析,根据SENT试样缺口处的应力状态分布预测疲劳危险部位,采用局部应力应变法,结合材料循环的S-N曲线,通过弹塑性有限元法将构件上的名义应力谱转换成危险部位的局部应力应变谱,从而根据危险部位的局部应力应变历程采用Miner累积损伤理论对构件的疲劳寿命进行估算,并与疲劳小裂纹试验数据进行比较分析。
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Wells, who was attacked by Lewis for a narrow and unfeeling "humanism", feared this, and he did indeed believe that the world would be better off if governed by a technocracy of trained, literate and numerate experts rather than by a hereditary ruling class or by demagogues elected through manipulation of an uninformed democracy.
威尔斯对此很恐惧——而刘易斯以狭隘而又冷酷的"人道主义"对其加以批评,并且他确实相信,如果世界在训练有素的技术官僚、学者和数学家的统治下,会比在世袭贵族,和在被无知的民主政治操纵下的选举中产生的政治家手中更好。
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The results show that the compound conductive fiber has typical structure of sheath-core consists of black greened polyaniline electric conductive deposition as the skin and the white polypropylene matrix fiber as the core, which makes the compound fiber preferable physical mechanical property. The intensity and the elongation ratio of the electric conductive fiber are decreased but the thermal stability is enhanced after modified. The compound fiber has the good acid resistance but poor base resistance. The thermal stability of the compound fiber prepared by 4-methyl-benzene sulfonic acid is better than that prepared by hydrochloride acid. Moreover, the compound fiber can be re-doped by other organic or inorganic acid after freed from the adsorbed acid. Furthermore, the electric conductivity of the compound fiber decreases with the temperature increasing but hardly changed with the humidity. The adsorptive ability and therefore the content of the polyaniline, the constant of electric conduction, and the durability of the compound fiber can be enhanced by thinning the diameter, section heteromorphosis, section heteromorphosis and plasma treatment of the surface or blending with COPET of the fiber.
结果表明:复合纤维是聚丙烯与聚苯胺的共混体系,具有典型的皮芯型结构,皮层为墨绿色的聚苯胺沉积层,形成连续的导电通道,芯层为白色的聚丙烯基质纤维,提供物理机械性能;导电改性后纤维的强度、强力和伸长率均有下降,但热稳定性得到提高;复合纤维的耐酸性比耐碱性好,以对甲苯磺酸做掺杂酸比盐酸掺杂聚苯胺热稳定性好,脱掺杂后的复合纤维,可用其它无机酸或有机酸进行再掺杂;复合导电纤维的电导率随温度升高降低幅度较大,但几乎不受湿度影响;基质纤维细旦化、截面异形化、表面等离子体处理或共混COPET等改性处理均能提高纤维的吸附性,进而提高复合纤维表面聚苯胺含量、电导率和耐久性。
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A simple polynomial approach for A Class of nonlinear system modeling is presented. By this, the input-output data are firstly changed into [0, 1] by using topological homeomorphism conversion; then an initial polynomial model is selected. The parameters of polynomial model are estimated by using recursion least squares method. A final polynomial model is obtained by repeatedly estimating parameter and eliminating redundant terms.
给出一类非线性系统的实现简单的多项式逼近的建模方法,在此方法中,将输入输出数据通过拓扑同胚变换,变换到[0,1]区间内,用多项式逼近的方法进行建模,对初始给定的多项式模型,通过反复的参数辨识、去除模型中的冗余项,得到非线性系统的多项式逼近模型,再利用拓扑反变换,将数据还原回原始数据区间。
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From these researches as above, this paper found a new method to analysis salty soil road engineering properties by phase equilibrium theory, which provides a new angle of analysis on salty soil properties, experiment and engineering practice in these ways as follows:(1) Analysis the disadvantage of traditional salty soil experiment;(2) Analysis the disadvantage of current salty soil definition by phase equilibrium theory, and gives the chart of distinguish salty soil by the condition of hydrography and climate change;(3) Analysis the mechanics of subgrade frost boiling based on the change rule of liquid content;(4) Based on the change rule of ingredients content and volume in salty soil, analysis the mechanics of subgrade salt heaving and the restraining method by adding sodium chloride.
通过以上研究,本文初步建立了以相平衡理论为核心的盐渍土路用工程性质分析方法,该方法对盐渍土工程性质的理论分析、试验研究以及工程实践提供了新的研究思路与方法,具体体现在:(1)分析了传统的盐渍土试验存在的缺陷;(2)分析了现行盐渍土定义的不足,并以相平衡理论为基础,结合水文、气候条件的变化给出了判别盐渍土的诺谟图;(3)分析了盐渍土盐溶液含量的变化规律,并从盐渍土含液量变化规律出发,分析了盐渍土路基较非盐渍土路基翻浆严重的机理;(4)分析了盐渍土各固相含量及其体积的相变规律,并在此基础上分析盐渍土路基的盐胀机理,以及采用添加氯化钠来抑止硫酸盐盐渍土的盐胀机理
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Because the weights are determined by the correlation of code sequence and estimation error of channels, which can be nearly determined by system load factor, we determine the sub-optimum weights by system load factor through simulations, and substitute the hard-decision symbol function by soft-decision hyperbolic tangent function to decrease the risk of error decision.
由于加权因子取决于前级符号估计的可靠性。也就是取决于扩频码互相关系数与信道估计精度,在随机扩频系统中,估计精度可近似由系统负荷决定,因此可根据系统负荷决定加权因子,以很小的性能降低代价换取计算量的极大降低。同时,为进一步降低误判风险,使用带有斜率控制因子的双曲正切函数代替常规的符号函数。
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The gastric ulcer models, induced by pylorus method, by water hyperirritability, by acetic acid, and by reserpine were respectively made,being treated with Jiulingweikang capsules or ranitidine.
分别制造幽门结扎胃溃疡、应激性胃溃疡、醋酸灼伤胃溃疡和利血平型胃溃疡动物模型,以九灵胃康胶囊和雷尼替丁对照治疗。
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Now increases the damage done by your Incinerate and Chaos Bolt by 15% on targets afflicted by Immolate, and increases the critical strike chance of your Conflagrate by 25%.
现在这个天赋在目标受到献祭效果影响的情况下,提升你的烧尽和混乱之箭对其所造成的伤害15%,同时提升燃烧造成暴击的几率25%。
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Fire and Brimstone now Increases the damage done by your Incinerate and Chaos Bolt spells to targets afflicted by your Immolate by 3/6/9/12/15%, and the critical strike chance of your Conflagrate spell is increased by
硫磺烈火-现在提升你的烧尽和混乱之箭对受你的献祭效果影响的目标的伤害3/6/9/12/15%,并且你的燃烧法术的暴击几率提升
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II. To these officers the keys of the kingdom of heaven are committed; by virtue whereof, they have power, respectively, to retain, and remit sins; to shut that kingdom against the impenitent, both by the Word, and censures; and to open it unto penitent sinners, by the ministry of the Gospel; and by absolution
天国的钥匙被托付给这些管理人员,藉此他们有权柄将人的罪留下来或是加以赦免。藉著神的道与惩戒,他们可以将国向不悔改的人关闭,也可以视情况,藉著宣讲福音,以及藉著免除惩戒,将神的国向悔改的人敞开。
- 相关中文对照歌词
- In The Sweet By And By
- By Heart, By Soul
- By & By
- In The Sweet By And By
- By & By
- Piece By Piece, Frame By Frame
- Sweet By And By
- In The Sweet By And By
- By And By
- I Want To Be Loved By You (But Only By You)
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?