Anna University Chennai 2009-8th Sem B.E Civil Engineering CE 1032 - St Structures and St Materials (Elective) (ester), Anna University/Chennai/ - Question Paper

B.E./B.Tech. DEGREE EXAMINATION, MAY/JUNE 2009
Eighth Semester
Civil Engineering
CE 1032 - SMART STRUCTURES AND SMART MATERIALS
(Regulation 2004)

Time: 3 hours Maxmimum:100 marks

ans ALL ques.

PART A - (10x2 = 20 marks)

1. elaborate hybrid smart materials?
2. What is an intelligent system?
3. List the functions of strain gauges?
4. What is a strain Rosette?
5. What is chemical sensing in structural assessment?
6. What is the role of a sensor?
7. How the actuators are used in structures?
8. Name the piezoelectric materials used in smart structures.
9. elaborate Geometrical processors?
10. List the limitations of non linear control systems?

PART B - (5x16 = 80 marks)

11. (a) discuss the functions of different sensing sytems and actuation systems in smart structures.

Or

(b) explain in detail the functions and response of instrumental structures.

12. (a) elaborate the various kinds of strain gauges in smart structure? discuss any 2 of them with simple sketches.

Or

(b) Brief on the role of (i) Wheatstone bridge and (ii) Pressure transducer in smart structure.

13. (a) discuss (i) passive sensory smart structure (ii) active sensing and reactive smart structure.

Or

(b) elaborate fibre optic sensors? discuss in detail the light propagation in an optical fibre. elaborate its advantages?

14. (a) elaborate the various actuator materials? discuss reactive actuator based smart structures.

Or

(b) What is an electro rheological phenomenon? explain the electro rheological fluids and fluid actuators.

15. (a) What is an optimized control algorithm? How does it help to perform the needed functions after sensing changes?

(Or)

(b) Write brief tech. note on:
(i) Data acquisition [Marks 8]
(ii) Signal processing [Marks 8]

Earning:   Approval pending.