时变模型 meaning in English
time-varying model
Examples
- Modeling and simulating of variable parameters induction motors in electric vehicle applications
电动汽车感应电机的时变模型与计算机仿真 - On this basis , the safety monitoring time - varying model of concrete dam ' s deformation and corresponding calculation program are developed
在此基础上，构建了混凝土坝变形安全监控时变模型，并编制了相应的计算程序。 - Using vogel ' s wear index as the rail side wear index , the paper analyzes the side wear variations of rail head when the parameters in the wheel / rail system vary , analyzes the influences of track irregularity on rail uneven wear on gauge corner emphatically . this paper analyzes the rail side wear dates measured by track division of shan hai guan since 1990 , then gains the relationship between side wear and traffic volume and sums up the characteristics and regularities in the formation and development of side wear . in the end , some measures for regarding the side wear on curves are put forward
从轮轨摩擦、轮轨接触几何关系、轮轨接触应力和轮轨蠕滑等方面对钢轨侧面磨耗机理进行了探讨，从轨道几何参数、机车车辆运营条件等方面对钢轨侧面磨耗的影响因素进行了重点分析和总结；应用轮轨系统动力学，建立了轮轨空间耦合振动时变模型，采用vogel侧磨指数作为钢轨侧磨指标，系统分析了轮轨参数变化的情况下，轨头侧面磨耗的变化规律，重点分析了轨道不平顺对钢轨不均匀侧磨的影响；对山海关工务段1990年以后现场测得的曲线钢轨侧磨数据进行了分析，通过拟合得到了钢轨侧磨量与运量的关系曲线，并总结了曲线上股钢轨侧面磨耗的特征和发生、发展规律；最后提出了一些减缓曲线钢轨侧面磨耗的措施。 - The main contributions are as following : the dynamic modeling , the solution of the linear and nonlinear differential equations , the dynamic response of the system , and so on . on account of the influence of the model of the high - speed cam - follower system on the dynamic character , the two modelings , the modeling with consideration of the clearance between the cam and the follower and the modeling without consideration of the clearance , were been addressed firstly
本课题主要对高速凸轮机构的周期时变系统的动力学问题进行了相关研究，具体在高速凸轮机构作为周期时变系统的动力学建模、凸轮系统的周期时变模型的线性和非线性的微分方程的求解方法探索和凸轮系统的动态特性分析等方面做了一些工作。 - Thus , the inner parts are found which are the main factors of the total accuracy loss . this result can offer the basis to improve the design of dynamic measurement system and to increase its measuring accuracy . in order to prove the theory of the error tracing and accuracy - loss diagnosis of the dynamic measurement , two simple measuring system are selected , that is , pressure transducer system and the dynamic measuring system based on differential mutual inductive displacement transducer
根据建立的动态系统误差模型，以误差溯源结果为依据，用bp神经网络分析方法，求得系统各组成单元的精度损失规律，建立其精度损失时变模型，从而找出对测量系统的总精度损失影响较大的内部组成单元，为改进动态测量系统的设计、提高其测量精度提供依据。