| 1. | Identifies a subset of the model to provide to users as a submodel 标识作为子模型提供给用户的模型的子集。 |
| 2. | Finite element analysis on stress concentation of a hole based on submodel 基于子模型的孔边应力集中的有限元分析 |
| 3. | The control parameters and growth lives of cracks are calculated using the method of submodel . come to the conclusion that the results of life is safe while the average stress at crack is used as the remote tensile stress 研究表明,采用子模型法求裂纹扩展寿命研究时,用裂纹面原有位置处的中值应力作为远场应力,可以得到偏安全的计算结果。 |
| 4. | The overhead traveling crane used at a cold strip mill factory is given to study the deformation , stress distribution and load capacity of the main girder with 3d - fea shell - to - solid submodel method 以某冷轧带钢厂桥式起重机偏轨箱形梁为例,采用三维有限元法“板到体子模型”技术,比较分析了加强板2种焊接方式下主梁的变形、应力分布和承载能力。 |
| 5. | The submodel for target yield prediction was developed through integrating the effects of cotton radiation - temperature - water yield potential , soil fertility , average yield of last three years and production technique levels 产量目标知识模型是以棉花光温水生产潜力的估算为基础,通过量化土壤肥力、历史产量水平和生产技术水平等多因子对皮棉产量的影响而建立的。 |
| 6. | Then the author has constructed the submodel of the time of blowing oxygen and refrigerant , making use of the rbf neural networks . meantime , applying the genetic algorithm , completed the optimizationof parameter of the number of neuron and spread , and get the model with a better generalization ability 然后分别应用rbf神经网络建立吹氧时间子模型、冷却剂子模型,并结合遗传算法完成rbf神经网络本身其神经元个数、 spread等参数的优化,使模型具有较强的泛化能力。 |
| 7. | Following an iterative reduced - dimensional strategy , the problem of " dimension curse " can be solved effectively . in the last section of this chapter , a cascade wavelet model , which is combined with a static wavelet submodel and a dynamic linear submodel , is presented to identify the dynamic nonlinear systems 最后,提出一种串联小波模型,将现有的静态小波模型与动态线性子模型串联,可以很好地辨识非线性动态系统,而且避免了动态神经网络中非线性与记忆混合的复杂性。 |
| 8. | The purpose of this study is to develop a three - dimensional numerical calculation model for spark - ignited premixed - charge lpg single fuel engine , which includes chemical kinetics submodel , ignition submodel , turbulent combustion submodel and emissions submodel . the conclusions obtained from this study provide a principle guide for optimum design of combustion system and to obtain satisfying characteristics in emission , performance and economy of lpg engine upon suitable structure and operating parameters , such as compression ratio , valve timing and spark timing 本论文的主要研究目标是单燃料lpg发动机的结构参数和运行参数对发动机性能的影响,以建立针对点燃式lpg发动机的三维燃烧模型,包括化学动力学模型、点火模型、湍流燃烧模型、排放模型为主要技术手段,并将燃烧模型计算结果和采用稀氧传感器反馈控制的lpg实验发动机上实测数据相比较验证。 |
| 9. | The fem model was accurate and effective by using submodel and error estimation technique that ensured the reliability of calculation and analysis . the thesis got the measure of critical flaw and designing life of the girder . in addition , the thesis calculated the remaining life of the girder while the flaw reaching 150mm 结合有限元分析结果和损伤容限设计方法,本文计算了马钢第三炼钢厂4 # 125t铸造起重机主梁下盖板的临界裂纹尺寸,及初始裂纹为0 . 5mm时主梁的设计寿命,并估算了在裂纹尺寸达到150mm时主梁的剩余寿命。 |
| 10. | According to the principle of nutrient balance and water requirement in cotton , the sub - model for fertilization and water management was developed by integrating the effects of soil characters , variety traits and yield target . the submodel can make decisions on the suitable total nutrient and water rates and distributions among main growth stages , ratio of organic to inorganic nitrogen , and the ratio of base to topdressing fertilizer 根据平衡施肥原理和棉花水分需求规律,在综合考虑土壤理化特性、品种遗传特征、产量水平等因子影响的基础上,建立了具有系统性和普适性的棉花肥料及水分运筹动态知识模型,模型可以完成肥料总量需求,有机肥与无机肥的比例、基肥与追肥的比例、追肥施用时间、水分需求总量及其在各个生育时期的分配等。 |