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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

非線性典型相關分析的應用 / The application of nonlinear canonical correlation analysis

趙瑞韻, Chao, Jui Yun Unknown Date (has links)
隨著典型相關分析應用的日益廣泛,線性典型相關分析並不足以描述兩個主題事務間確實的關連及與其個別相關事務的互動關係,為了更適切地解釋資料數據背後所表達的現象,近來不斷地有關於非線性典型相關分析的理論發表,本文利用1992年Sheng所發表的非線性典型相關分析的理論,將之應用在對臺灣地區民國八十二年的前二十五名最有聲望的企業的資料分析上,並比較應用線性典型相關分析與非線性典型相關分析做資料分析的結果。
12

Optimal Design Of Truss Structures With Actuators

Akgoz, Asli 01 December 2003 (has links) (PDF)
Smart structures become highly popular with the developing technology. The aim of this study is to develop a basic model, which can be also used in the design of more complex systems by performing simultaneous optimization of a structure and associated controller with respect to some design parameters and feedback gains. In this thesis work, two smart structures are used as case studies and their results are compared with the available results in the literature. The first case study is simple twobar truss problem controlled by either one or two actuators. This problem is solved both numerically and analytically. The latter is a twenty-element parabolic truss, which is controlled by four actuators. This problem is solved numerically only. In the optimization process, the design parameters are taken as the cross sectional areas of bar elements, positions and/or number of actuators, and the elements of closed loop gain matrix. In the second case study, in addition to these parameters, shape design parameters are also optimized. A coordinate transformation is applied in both cases from the displacement space to the modal space. The modal model reduction method is used in the design of second problem. The optimization goal in both cases studies is to minimize the system energy while satisfying some frequency and mass constraints. In the second case study, in addition to the original objective function, system controllability and stability robustness are also maximized. In the solution of design problem, two optimization algorithms are used one embedded within the other. In the outer loop, a hide and seek simulated annealing algorithm optimizes structural design parameters, and positions and/or number of actuators. In order to generate a candidate design family for this level, optimal closed loop gain matrices are calculated by using MATLAB&reg / .

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