It 3 Emm Sugu.docx

MAILAM ENGINEERING COLLEGE, MAILAM (Approved by AICTE, New Delhi, Affiliated to Anna University Chennai) A TATA Consultancy Services Accredited Institution Department of Mechanical Engineering

Test

IT-2

Sub/Code:

Year / SEM:

1st / 2nd

Date:

Time:

3 HRS

Marks

ED5254 / VIBRATION ANALYSIS AND CONTROL

100 PART – A

CO

Level

(10X2=20)

Q.no

3

2

1.

Classify the vibration measuring instruments. (May/June 2014)

3

2

2.

How can static unbalance be detected? How can it be corrected?

3

2

3.

What is the different between vibration isolator and vibration absorber? (Nov/Dec 2016)

3

2

4.

List the drawbacks of an undamped vibration absorber?

3

1

5.

What is meant be model analysis?

3

4

6.

What is field balancing?(May/June 2013,2014)

3

1

7.

List out the different type of vibration isolation methods?

3

1

8.

What is resonance? What is the significance of it?(May/June 2014)

3

1

9.

How to monitor vibration in machineries? (May/June 2014)

3

2

10. List the different sensor used in vibration application PART – B

3

2

11.

(5X13=65)

(a)(i) Explain the different type of vibration isolation methods. (7) (ii) What is active vibration isolation? (Nov/Dec 2016) (6)

2

(b)(i) Explain the vibration severity standards in detail.(10)

2

(ii) What are the main specification of an accelerometer? (Nov/Dec 2016) (3)

3

12. 2

(a)(i)Differentiate the function of static and dynamic balancing give the one example in each. (10) (ii) What is the different between transducer and a pickup? (Nov/Dec 2016) (3)

(b)(i)With sketch explain Pendulum type vibration absorber and what

2

are the advantage and disadvantage? (Nov/Dec 2016) (10) 3

2 2

(ii) List some signification of vibration analysis. (May/June 2013) (3) .(a) (a) Give a brief notes about the following. (Nov/Dec 2016) 13.

(b) Explain the function of Field balancing with suitable example. (13)

2 3

1 2

(i) Electrodynamic shaker. (ii) Selection of sensors.

14.

2

(a) With sketch explain torsional type vibration absorber and what are the advantage and disadvantage? (13) (b)(i) Explain the function of dynamics vibration absorber and what are the advantage and disadvantage? (10) (ii) What is the use of vibration exciters? (May/June 2015) (3)

3

2 15 4

(a)(i) Explain the active vibration control in details. Give the same example. (7) (ii) Explain the construction and working principle of Hydraulic exciters. (May/June 2013) (6)

1

(b)(i) What is the reason for studying the vibration of a single degree

2

of freedom system? (6) (ii) Explain the construction and working principle of electrodynamic exciters. (May/June 2013) (7) PART – C

3

2

16

(1X15=15)

(a)(i) Explain the various steps involved in vibration analysis used in diesel Engine. (8) (ii) Explain the various spection of vibration limits. (May/June 2013) (7)

2

(b)(i) List out the different machine condition monitoring techniques

2

and explain any two vibration based technique. (Nov/Dec 2016) (8) (ii) Explain the different type of accelerator mounting with neat sketch.(7)

CO3:

K1-REMEMBER, K2-UNDERSTAND, K3-APPLY, K4-ANALYSIS, K5-EVALUATE, K6-CREATE

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