参数的
- 与 参数的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on indoor measurement of rock acoustic velocity,drillability, rigidity ,uniaxial compressive strength,the relationship between acoustic velocity and fragmentation parameters of rocks and that between the surface acoustic velocity and the underground mine logging acoustic velocity were explored by regression analysis.
在室内测定岩石声波速度、可钻性、硬度、单轴抗压强度试验的基础上,利用回归分析方法,探索声波速度与岩石机械破碎性能参数之间、地面声波速度与井下测井声波速度之间相关关系,建立了利用测井声波速度预测地层岩石机械破碎性能参数的数学模型,介绍了预测剖面及资料验证结果,并将这一方法用于计算PDC钻头可钻性以及中国南方海相碳酸盐岩地层的岩石力学参数。
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Based on mechanism and vehicle theories theoretical analysis is pursued and normal driving conditions are put forward. The relations are analyzed between load distribution and power consumption. Mechanical formula is proposed. Furthermore in this paper the theoretical model of the total power consumption is established, and the relations of the total minimized power consumption with the air-cushion pressure and the fan revolution are discussed. The optimum operation point is put forward. The dynamic digital simulation studies are carried out on the operating procedure of the half-track air-cushion vehicle on soft terrain. Mechanical parameters and soil mechanics characteristics affecting vehicle power consumption and riding performance are analyzed. At the same time according to the model formula, the automation control problem is discussed. It is a theoretical instruction for further automation control.
本文还从力学和车辆原理的角度进行了理论分析,推导了半履带式气垫车的需求功率及正常行驶条件,研究了气垫压力和功率消耗之间的关系,提出了力学模型公式;建立了半履带式气垫车总功率消耗的理论模型,研究了最小功率消耗时功率与垫压及表征气垫车行驶状态的各参数的关系,分析了相应的影响因素,并提出了最佳工作状态的定义;同时进行了半履带式气垫车在软地面的行驶过程的动态数字仿真试验研究工作,对影响车辆功率消耗和行驶平顺性的各力学参数和土壤参数进行了分析,得到了各运行状态参数的变化规律,验证了最佳工作状态和最佳垫压的理论,根据力学模型公式对进一步的自动控制问题进行了探讨,为系统的控制提供了理论指导。
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A theoretical model is built to investigate the simulation of the infrared characteristic of the metal structure with the PCM false target.Structure parameters of the PCM false target that suit for the simulation are investigated numerically.According to the results,further request on the improvement of the thermal conductivity of PCM is presented.An experimental platform is built and the numerical model is validated experimentally.Three key thermal characteristic components of the false tank(barbette,wheel and front armor plate) are manufactured and tested,and good results are obtained.A method for the thermal conductivity enhancing of PCM by using aluminum fins is studied,the influence of the structure parameters of PCM plates to the simulation effects are investigated numerically,and the reasonable configuration parameters of the PCM plates used to simulate the steel plates of different thickness are obtained.In the study of the application of heat convection method in IR false target,a passive infrared simulation system is designed to simulate the infrared characteristic of metal constructions.The system is made up of pipe-plate,pump,receiver,and working fluid.
在相变材料应用于红外示假的研究中,通过数值模拟,研究确定了适用于制作假目标的相变材料各物性参数的范围,分析了相变材料制作假目标的可行性,并根据所得结果,选取石蜡为研究对象,建立了相变材料模拟金属构件红外特征的理论模型,研究了适用于模拟各金属构件红外特征的相变材料假目标的相关结构参数,得出了相变材料假目标模拟各金属构件红外特征的理论结果,并对相变材料的导热系数这一物性提出了进一步的改进要求;搭建了假目标实验平台,验证了所建理论模型的准确性;以坦克假目标为研究对象,制作了炮塔、负重轮和前上装甲板三个坦克假目标的关键红外热特征部件,并进行了野外实验,取得了较好的结果;以添加铝肋片作为改进相变材料导热能力的手段,理论研究了此类导热增强型相变材料的相关结构参数对模拟效果的影响,得出了模拟不同厚度钢板红外特征的导热增强型相变材料的结构参数及模拟效果。
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In this part, the distribution of stable states of a system is worked out under the condition of unbalanced attention parameters on basis of analyzing elementary dynamic equation and synergetic potential function, which improved the discussion of relevant properties of basic synergetic equations. Then, with the analysis of effects of attention parameters in synergetic dynamics, a set of elementary properties are presented to give light how the attention parameters work on pattern recognition process. In the end, in view of geometric sense in synergetic order parameters, some elementary properties are studied, by which a new construction method of order parameters is established so as to provide a general way to constitute new relations of prototype patterns according to practical requirements.
首先在分析了协同模式识别的基本动力学方程及协同势函数的基础上给出了注意参数不平衡情形下系统稳定状态的分布,完善了对协同模式识别基本方程相关性质的讨论;其次,分析了注意参数在协同动力学过程的作用,并给出了注意参数的一些基本性质,指出了注意参数对模式识别过程产生的影响;然后,从协同序参量的几何意义出发,研究了协同序参量的基本性质,并在指出其局限性的同时建立了新序参量的构造方法,从而能够更一般地根据要求建立模式间的新关系,促进识别过程的进行。
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By iteratively combining these two procedures we achieve a way of training the configuration of RBFNN. In addition, the algorithm is very robust with respect to the noise level. Simulation experiments show that the proposed algorithms are sound. In chapter 3, which is the extension of chapter 2, the improvements of the architectures of RBFNNs and the solutions of their relating problems are discussed, Firstly, an new distance metric is advanced and a forward orthogonal least square selection procedure is applied to learning the parameters of classification function and selecting the important input nodes.
首先分析了目前存在的同时确定RBFNN结构和参数的方法的缺陷,在此基础上提出了用基于拉马克的进化学说的进化编程算法来改进算法,以克服某些缺陷;然后针对受到严重噪声污染的系统,如何提高RBFNN的泛化能力的问题,利用基于AIC的适应度函数的改进遗传算法学习结构和参数;最后介绍基于MDL原理的方法,将优化网络的结构和参数分为两个阶段:训练和进化,先自适应地改变RBFNN基函数的中心和宽度,同时训练输出线性权值,再用基于MDL原理的适应度函数的标准GA来优化隐层节点,通过交替使用这两过程达到训练RBFNN的结构和参数的目的,该算法具有较强的鲁棒性。
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In this thesis, the methods of surrounding rock masses stability classification on the basis of the geological documentation of muck and the boring parameters of TBM are approached, especially as follows:①The geological documentation of muck and the boring parameters of TBM in the Yellow River Diversion Project.of shanxi province is summarized systematically;②Based on the geological documentation of muck and the boring parameters of TBM, that whether the common methods of surrounding rock masses stability (the methods of regular factor classification) classification are feasible, is carried on the discussion;③According to the corresponding relation of muck and the boring parameters of TBM and the surrounding rock masses stability type, the extension assessment method of tunnel surrounding rock masses stability classification is set up, also the corresponding fortran calculation procedure worked out, and not only rational result in conformity with the reality can be obtained, but also the stability situation of surrounding rock masses in front of the working range can be predicted according to the change of the dependent value in the application instance of Yellow River Diversion Project;④Combining with the application instance of Yellow River Diversion Project, extension assessment method in the application of surrounding rock masses stability classification is compared and verificated in detail by applying fuzzy synthesis method by forefathers, and a certain degree discussion and summary about the application achievement of surrounding rock masses stability classification, which is assessed by extension assessment method and fuzzy synthesis method, are carried on.
本文基于渣料和TBM掘进参数的地质编录提供的地质信息进行了围岩稳定分类方法的探讨,重点进行:①对引黄工程中渣料和TBM掘进参数的地质编录的系统整理;②基于渣料和TBM掘进参数的地质编录获得的地质信息,对常用围岩稳定分类方法是否能够进行围岩稳定分类进行了探讨;③根据渣料和TBM掘进参数与围岩稳定类型的对应关系,应用可拓理论,建立了隧洞围岩稳定分类的可拓评价方法,还编制了相应的fortran计算程序,并在引黄工程的应用实例中不仅取得了与客观实际相符的合理结果,而且根据其关联度值的变化能够预测临近掌子面前方围岩的稳定情况;④结合引黄工程的应用实例运用模糊综合评判方法对可拓评判方法在围岩稳定分类中的应用进行了详细的验证、比较,并对前人在运用可拓学和模糊数学进行岩体稳定评判的应用成果方面,进行了一定的探讨、总结。
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Therefore, the study is significant both theoretically and practically. As a result, the studying aim of this paper is to establish a practical and complete system for the prediction of ship maneuvering motion, taking into account of the influence of the environmental factors, such as the wind, wave and current, establish a practical and complete system for the prediction of ship maneuvering motion. In this paper, the OpenGL virtual reality simulation technique is introduced into the field of ship maneuver and control, and using the MMG mathematical model, the three dimensional dynamic simulation system of the ship motion is established and good results are achieved. In the process of the system development, firstly, the maneuvering motion equations for ship in the still water are established, based on the MMG module mathematical model and serial experimental result. After compiling the program, the calculation results are compared with the experimental data, the coherence between them validate the mathematical model.
在系统开发过程中,首先采用MMG分离式数学模型及相关的系列化试验结果,建立单桨单舵海洋运输船舶在静水中的船舶操纵运动方程,并编制计算程序,经与试验结果比较,证实了计算结果的正确性;为了解MMG数学模型中模型参数变化对操纵性指数的影响程度,作者在上述已有程序基础上,对有关模型参数进行偏移修正,探讨了相应参数变化后的操纵性指数,对船舶操纵性指数对模型参数的灵敏度进行了详细的分析与探讨,所得结论与工程实际相吻合,具有实际应用价值,并为进一步提高船舶操纵性预报的精度打下了基础;然后,在已有的船舶静水操纵运动模型基础上,考虑双桨双舵的影响,建立了内河双桨双舵船舶的操纵运动模型;最后,综合考虑风浪流作用力的影响,进行了船舶的操纵运动仿真计算。
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Exploring the rule of nucleation coefficients will be a possible wayapproach microvoids nucleation mechanism. OFHC Cu and pure Cu incipient spalled under~10~5s~(-1)strain rates electric gun driven twostage flyer impacts loading.
极高应变率下Cu、Al中微孔洞分布均表现为成核规律相关参数与应变率有关,探求不同应变率、不同材料参数加载下,NAG模型参数的变化规律是研究微孔洞成核机理和规律的可行方法。
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There are, however, no wide-accepted molecular parameters taken as a reference and no precise γ and A_D obtained simultaneously so far.
本论文报道我们获得的自然丰度下N~(16)O的中红外LMR光谱,并采用最新的联系各同位素分子参数的标度函数将所有已发表的光谱数据和我们测量的实验数据实现统一的标识分析,通过对所有数据的完整一体的最小二乘拟合,得到了迄今为止最完备、最精确的~mN~nO(m=14,15;n=16,17,18)系列分子的结构参数,这些参数的精度与文献结果相比提高了1-2个量级,其中许多参数都是首次获得的。
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The interval finite element analysis method is extended from one-dimension truss member and beam structure to two-dimension plane structure.3 Genetic algorithm has powerful capability of global search and lower capability of local search, however, simulated annealing algorithm has powerful capability of local search and lower capability of global search.
5为了解某一参数的变化对结构响应的影响程度,提出了参数敏感性的区间分析方法,可以获得模型参数对决策目标的敏感性因子矩阵;通过对一平面应变结构地基模型的分析,得出了土体Duncan-Chang E_t-ν_t模型的八个参数的敏感性因子矩阵。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。