| 1. | Research on modification of model reduction based on genetic algorithms
基于遗传算法的降阶模型修正方法研究 |
| 2. | In this paper , that using experimental mode data to modify calculating model is taken as the research object
摘要以实验模态数据修正降阶模型为研究对象，由于所测量的特征对阶数通常小于模型阶数，造成了特征方程为超越方程。 |
| 3. | Investigated the basic theory of the coupled cfd / csd simulation of nonlinear unsteady aerodynamics and prepared basic data for reduced order model . 2
探讨了cfd csd耦合技术预测非线性非定常气动力的基本原理，为非定常气动力降阶模型准备数据。 |
| 4. | Integrated ase design and coupled cfd / csd simulation technology and firstly applied the reduced order model based on volterra series to the design of ase system 2
将ase系统设计同cfd csd耦合模拟技术相结合，首次将基于volterra级数的非定常气动力降阶模型用于气动伺服弹性系统的设计。 |
| 5. | The first part of the thesis introduces the activated sludge model no . l ( asm1 ) , and illustrates the representative method , the characters of the water quality and the different components in detail
论文第一部分介绍了活性污泥1号模型asm1 ，对模型表述形式、污水的水质特性及组分构成作了详细的说明。论文第二部分主要介绍活性污泥的降阶模型。 |
| 6. | Investigated the reduced order model for nonlinear unsteady aerodynamics based on volterra series , especially the identification method of the volterra kernels and studied the application domain and accuracy of the model
研究了volterra级数在非定常气动力降阶模型中的应用，特别是volterra核的计算，并对volterra级数模型的适用范围和精度进行了评价。 |
| 7. | Based on the multi - scale representation theory , we present a reduced order model for the solving of the inverse problem . also the relative error covariance matrix is used to analyze the performance of models with different orders ; 4
基于小波多尺度表示理论给出逆问题求解的多尺度降阶模型，同时用相对误差协方差矩阵对阶数不同的降阶模型的估计精度进行分析； 4 |
| 8. | In order to make the design process for power control system of experimental nuclear reactor optimal , objective and analytical , an analytical design process which contains the model linearization , model reduction , theoretical design of pid controllers is discussed
摘要通过对实验反应堆系统模型进行线性化和模型降阶、再对降阶模型进行pid控制器的理论设计的方法，可使反应堆功率调节系统的设计最优化、客观化和解析化。 |
| 9. | In flight test , using the method of system identification , the model of the dropped order is taken , then the performance of control syetem of the drone is evaluated . in order to analysize the precision guidance of the flight test , two method is usedizero time sample test and small sample test
在飞行试验中，要对无人机的飞行控制系统的性能进行评估，运用系统辨识的方法，对试验数据进行辨识，获得其降阶模型，从而对其性能进行评估。 |
| 10. | Firstly , a reduced order model of this flexible structure is obtained by frequency domain identification , then unstructured uncertainties constituted by neglected modes are taken care of in the time of design process by choosing appropriate weighting functions , arid finally a robust feedback controller is designed based on the reduced order model and the approximate knowledge of unmodeled uncertainties
首先通过频域辨识得到柔性结构的降阶模型，而剩馀高阶模态构成的非结构不确定性，通过对权函数的选择在设计阶段就加以考虑，然后基于降阶模型和未建模不确定的近似特性设计了鲁棒反馈控制器。 |
