Course Description:
本課程將利用數個結構動力實驗方法作為起點，了解結構動力特徵之重要性，如自然振動頻率、阻尼與模態振型。另外，利用結構之動力特徵，推導出結構相應之參數，如勁度與阻尼，並藉由運動方程式與實驗結果比對，確認數值模型建立之正確性。之後，透過簡諧外力之輸入，確認結構穩態之振幅，並與輸入振幅相互比對，使學生了解結構於時間域與頻率域間之關係，強化學生頻率域分析之能力。最後，利用地震輸入獲得結構之反應，讓學生了解耐震設計之相關要點，並藉由軟體操作獲得結構反應，實際體驗耐震設計之重要性。
This class will have students to learn and practice several experimenting methods in the beginning. These methods will allow students understanding the importance of dynamic characteristics of structures, e.g., natural frequencies, damping ratios, and mode shapes. After these dynamic characteristics have been experimentally obtained, students will learn how to derive structural properties such as stiffness and damping matrices and to establish a numerical model. These derived structural properties will be also compared with experimental results to affirm the correctness of numerical models. Then, students will understand the relationship between time- and frequency-domain responses from structures subjected to harmonic excitation. By observing harmonic responses, students will map the steady-state amplitudes to the transfer function magnitudes. Finally, earthquake records will be input to structures by shake table testing. From this test, students will learn the critical issues in seismic design. After this final test, students will numerically simulate the same structure via commercial software and experience the importance of seismic design.
本學期將使用台大土木與國震中心之實驗能量，運用振動台與縮尺結構試體，了解結構動力與地震工程之重要性，並由觀察後的結果，運用於數值模擬與結構分析，最後延伸至耐震設計。學生團隊的任務包含：
In this semester, the testing capability owned by NTU-CE and NCREE will allow students testing small-scale structures by shake table testing as well as understanding the fundamentals of structural dynamics and earthquake engineering. The integration of experimental findings, numerical modeling and simulation, and structural dynamic analysis will direct students to learn the basic ideas of earthquake engineering. The tasks that students should conduct include:
a. 分析振動台獲得之實驗數據 ，獲取結構之動力模態參數
b. 推導結構之相關參數，進行結構之模態分析，並與實驗數據比對
c. 設計與製作建築結構之縮尺模型，利用振動台實驗，比對該模型之動力參數
d. 進行簡諧與地震外力輸入之實驗，利用數值模擬與分析，比對結構之數值與實際模型之動力行為
e. 經由盲測比賽，了解結構之耐震行為

a. Analyzing experimental data from shake table testing and acquiring modal properties of structures
b. Deriving structural parameters (e.g., stiffness and damping), performing modal analysis, and comparing numerical results with experimental outcomes
c. Designing and fabricating a small-scale MDOF building structure and comparing the dynamic characteristics of this small-scale building with experimental results
d. Conducting dynamic experiments of structures under harmonic and seismic excitations and comparing of dynamic behavior between numerical and experimental approaches
e. Understanding dynamic behavior of structures against earthquakes through blind tests