| 1. | Numerical analyses of the allowed parametrical errors in tunable opo
参量允差的数值分析 |
| 2. | Dynamical analysis of coupled oscillators with parametrical excitation
参数激励耦合系统的复杂动力学行为分析 |
| 3. | Finally , parametrical uncertainty is studied to show that the controllers are robust
结果显示，控制器具有较强的鲁棒性。 |
| 4. | An entire analysis on the closed loop system with the controller is presented , including stability analysis , response analysis , parametrical uncertainty analysis , and so on
最后对开环系统及控制器作用下的闭环系统分别作了一个全面的分析，包括稳定性分析、响应分析等。 |
| 5. | The conventional real - time monitoring method does not use the non - parametrical pdf of the principal components , which are capable of indicating the real - time changes of batch production processes
本文从这一背景出发，重点是对用核函数法概率估计对间歇生产过程实时状态监测的方法进行较广泛、深入的研究。 |
| 6. | ( 3 ) profoundly developed the technical tools and apdl ( ansys parametrical design language ) of the ansys software based on the optimum design practice , and realized the aim of constructing the complicated parametrical fe model
( 3 )结合优化设计工作实践,深入挖掘开发了ansys软件所提供的技术工具和apdl语言,实现了复杂的参数化有限元建模。 |
| 7. | The mostly aims of the thesis are developed the gravity dam parametrical model system . the system can automatic cut open for model and can export model to the universal finite element analysis ' software to calculate . finally , the author discuss in the place drawing
本文的主要目的在于建立重力坝的数字化三维模型系统，并能够在此基础上对三维模型进行自动剖分，并导入通用有限元软件进行有限元计算，而且向二维施工图的方向进行了试探。 |
| 8. | Following problems are mainly discussed in this work : how to build a parametrical finite element ( fe ) model how to choose the design parameters , constraints and objective of the correction model how to evaluate different sensitivity calculating methods and choose optimization algorithms how to get the normal mode - shapes and describe the relativity between normal mode - shapes how to solve the correction problem of fe model by using structure optimization techniques in each paragraph , illustrative examples are used to explain the methods and finally an engineering application of an aircraft correction is presented in the end
主要进行了如下几个方面的工作：参数化有限元模型的建立；修正模型设计参数、约束及目标函数的确定；灵敏度方法的比较及优化算法的选取；固有振型的获取及模态相关性的定量描述；采用结构优化技术解决有限元模型修正问题。在模态修正过程中，由于修正固有振型涉及大量的有限元计算结果数据，此前，虽有不少文献在理论上研究了它的修正方法，但都没有给出工程应用实例，而本文解决了固有振型修正的工程应用问题。 |
| 9. | Since it is difficult for the cable or beam model to consider the large deformation in the pipe crossing section , the fem analysis with shell element has been proposed to investigate the response of pipe . takada ( 2000 ) proposed a simplified design formula to obtaining the maximum strain in steel pipes based on the parametrical study using a beam - shell hybrid fem
现在的抗震规范和有关研究中，还很少有估计大变形时管子内的应力应变的方法，虽然2000年高田至郎等人基于壳有限元模型的参数研究提出了设计用的简化计算公式，但在他们的分析模型中存在一些问题有待改进。 |
