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**Anna University Question Paper Code : 83330**

**M.E. DEGREE EXAMINATION, JANUARY 2014.**

**First Semester**

**Structural Engineering**

**ST 7102 — STRUCTURAL DYNAMICS**

**(Regulation 2013)**

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**PART A — (10 x 2 = 20 marks)**

1. What is mean by prescribed dynamic load?

2. What is damping?

3. What is Resonant frequency ratio?

4. Distinguish between free and forced vibration.

5. What is an impulse?

6. Define generalized system properties.

7. What are response spectra?

8. What is mean by mode shape?

9. What is the difference between consistent mass and lumped mass?

10. What is mean by base isolation?

**PART B — (5 x 16 = 80 marks)**

11. (a) For a single degree of freedom system with mass 10kg and stiffness 4 kN/m, the forcing function is shown in figure 1. Evaluate numerically its response.

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