形式模型
- 与 形式模型 相关的网络例句 [注:此内容来源于网络,仅供参考]
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By analyzing the forging process of double frustums sucker rod and using rigid visco-plastic material model and 3-D coupled FE simulation, the whole forging procedure are analyzed and simulated with finite element analysis software DEFORM. The results indicate the inner stress field, strain field, metal flowing law and forging travel-load curve during the forming procedure. The forming statuses, causation of defect of workpiece are predicted and so on.
通过对抽油杆镦锻工艺的分析,并采用刚粘塑性材料模型与有限元耦合的方法,运用有限元分析软件DEFORM-3D对双圆台抽油杆的成形过程进行了模拟,获得了成形过程中的内部应力、应变、金属流动规律及行程――载荷曲线,预测分析了工件成形状况、可能产生的主要缺陷的形式、部位和原因。
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The formation of the precursor for nucleation and growth of TiO〓 particles is slow from the complex. So the formation of TiO〓 particles is a diffusion-controlled process described as the Lamer model.
虽然水解料液中钛的浓度较高,但是以络合物的形式存在,络合物转变成成核前驱体的反应是缓慢的,使成核和生长过程在扩散控制下按Lamer模型的方式完成。
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This paper first introduces the basic principle and concept of data fusion, summarizes levels and model structure of data fusion, summarizes common algorithms and sorts them, separately expounds data fusion algorithms, neural network and evidence theory, and lucubrates the structure design of neural network. And then, the advantages and disadvantages of neural network and the evidence theory are discussed. In order to colligate the two algorithms strongpoint and increase the fault diagnosis accuracy, fault diagnosis method using data fusion integrated Ann and evidence theory is presented and diagnosis approach of this method is expatiated on.
本文首先对数据融合的基本原理、基本概念进行了阐述,总结了数据融合的层次和模型结构形式,并对常用的融合算法进行了总结分类;分别对数据融合算法—神经网络方法和证据理论方法—进行了详细的阐述,同时对神经网络的结构设计进行了深入研究;然后对神经网络和证据理论方法优缺点进行了分析,在此基础上为了实现两种算法优势互补,提高诊断的准确率,提出了神经网络和证据理论集成的数据融合故障诊断法,并详细阐述了这种方法的诊断原理。
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Most formal methods proposed for protocol analysis use the state machine model in one form or another.
多数正式方法提议为协议分析使用系统模型在一形式或另。
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The other problem in the dissertation reveals that the RBF centers and widths can be evoked by a cooperative-competitive genetic algorithm. Using the well-known credit apportionment problem and niching problem, the different fitness measures in the GA of RBF representation have been studied and the adaptive genetic operators have been given to trade off the problems because of the fitness measure problem.
另外,研究了一种基于全局搜索的遗传算法的带有不同尺度的RBF结构确定的方法,讨论了信度分配问题和小生境问题两个概念,并把两概念应用于基于GA的RBF表示的系统模型中,详细论述了在GA优化过程中,取不同评价函数测量形式,对搜索群体性能的影响,最后提出采用自适应的遗传操作算子来平衡由于评价函数所造成的抑制过度竞争出现早熟问题的方法。
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At present, diesel oil plays a more and more important role in the various kinds of fuel. But compare to gasoline, diesel oil has a high rate of sulfur compound. The sulfur compound is existed mainly as thiphene and thiphene ramification. These kinds of sulfur compounds are not easy to remove by adding hydrogenation. Thats why diesel oil has a high rate of sulfur compound. So it makes profound desulfurization a hot topic and a difficult problem in and outside the country. This paper takes dibenzonthiophene as a model to study the profound desulfurization of diesel oil with the help of biology and the oxygenating desulfurization under the condition of ultrasonic and microwave.
目前,柴油在燃料油中占的比重越来越大,而柴油较汽油馏分重,其硫化物主要以噻吩及噻吩衍生物的形式存在,这类硫化物用加氢的方法难以脱除,使柴油的含硫量较高,因此柴油的深度脱硫是国内外研究的热点和难点,本文以二苯并噻吩作为模型化合物,考察微生物的协同条件下对柴油的深度脱硫,超声波条件和微波条件下的氧化脱硫,并对超声波条件和微波条件下柴油的深度脱硫进行了对比。
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Comparing with the currently predigesting calculate of wind pressure on curtain
并在此基础上,针对幕墙不同的结构形式,引入了两种力学模型,并采用弹性小挠度弯曲理论,应用重、单三角级数法分析幕墙玻璃板主要在风荷载作用下的受力状况,为幕墙玻璃板内力的控制提供了
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I designed a risk appraisal model based on the measure method of risk degree of Robert Simons risk exposure calculation model. This model follows quantitating as possible principle and use quantitative method combined with qualitative method. In the model, qualitative tables use asking form and quantitative tables use reformed Walt point system.
以Robert Simons的风险暴露计算模型中对风险程度的划分为基础,遵循&能定量则定量&的原则,采用定性和定量相结合的方法,设计了一套简单实用的企业风险评估表,其中定性评估表采用问项的形式,定量评估表采用改良的沃尔评分法。
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However, for B2C e-business, current development model does not fit to create flexible and variable system. That is to say, without redeveloping system, it is not simple, convenient or variable for users to change the function and style of the web pages and the structure of the web site.
而对于B2C电子商务系统而言,当前的开发模型并不能很好地实现B2C电子商务系统的灵活可变,即在不对系统进行二次开发的前提下,不能够让用户简单、方便、灵活地改变网页功能和表现形式以及网站的结构。
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Based on the theory of two-phase fluids dynamics, the general governing equation is established, which is applied to the fields of seepage, consolidation and deposit. For the first time, the mechanics properties of the soil affected by seepage are studied by the means of experiment. The problems of the modified indexes of mechanics and constitutive relation are solved due to the formulations obtained of mechanics parameter under seepage condition. Applied fuzzy theory and modern project design method, the fuzzy probability model for stability analysis is stetted up; Considered variation of mechanics parameter and curtain effect, the deformation patterns of deep execution are systematically analyzed.
基于两相流理论,推导了适用于渗流、固结和沉积的统一形式的控制方程;试验研究了渗流作用下土的力学性质的变化规律,经综合分析得到力学指标的定量表达式,为工程设计和数值计算中力学参数的确定提供了参考;基于模糊理论和现代工程设计方法,建立了基坑失稳的模糊概率模型,为基坑稳定性预测提供了新的方法;对基坑变形规律作了系统分析,考虑了土性变化和帷幕防渗效果对支护结构变形的影响,得到了较满意的结果。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。