Mechanical Vibrations (KME057) - AKTU Question Paper 2023-24
B.Tech · Semester 5 · Free PDF Download
This is the official AKTU Mechanical Vibrations Previous Year Question Paper for B.Tech Semester 5, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.
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Questions Asked in 2023-24
Mechanical Vibrations (KME057) — complete question paper · 100 marks · 3 Hours
- aWhat is mean by Frequency? 2 1
- bWhat are the effects of vibration? 2 1
- dWhat is meant by Forced vibrations? 2 1
- eWrite a short note on simple Harmonic motion. 2 1
- fWrite short notes on D’Alembert’s principle. 2 1
- gDefine Single Degree Freedom? 2 1
- hDefine Multi‐degree Freedom system? 2 1 i. Define Critical speed of shafts? 2 1 j. Define Principle of vibration absorber? 2 1
- aDefine Vibrations of systems with viscous damping? 10 2
- bDefine Harmonic excitation with viscous damping ? Also define steady state vibrations
- cGive Note on (i) Vibration isolators (ii) Vibration Dampers. 10 2
- dDefine Newton s Second Law to Derive Equations of Motion? 10 2
- eExplain Undamped free and forced vibration of multi degree freedom system? 10 2
- aA cantilever beam carries a mass M at the free end as shown in Fig. A mass m falls from a height h onto the mass M and adheres to it without rebounding. Determine the resulting transverse vibration of the beam
- bExplain the classifications of vibration with examples. 10 3
- aA reciprocating pump, weighing 150 lb, is mounted at the middle of a steel plate of thickness 0.5 in., width 20 in., and length 100 in., clamped along two edges as shown in Fig. During operation of the pump, the plate is subjected to
- aharmonic force, F(t) = 50 Cos 62.832t lb. Find the amplitude of vibration of the plate
- bDefine Vibration measuring instruments with suitable sketch. 10 4
- aFind the natural frequencies and mode shapes of a spring-mass system, shown in Fig, which is constrained to move in the vertical direction only. Take n=1
- bDefine the Principle of vibration absorber? Also define Undamped Dynamic Vibration Absorber?
- aFind the stiffness influence coefficients of the system shown in Fig
- bEstimate the fundamental natural frequency of a simply supported beam carrying three identical equally spaced masses, as shown in Fig
- aA shaft, carrying a rotor of weight 100 lb and eccentricity 0.1 in., rotates at 1200 rpm. Determine (a) the steady-state whirl amplitude and (b) the maximum whirl amplitude during start-up conditions of the system. Assume the stiffness of the shaft as 2 x 105 lb/in. and the external damping ratio as 0.1
- bDefine Secondary critical speed of shaft? 10 5
Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.
Repeated Questions — KME057
Questions that appeared in more than one session, found by comparing 2 years of Mechanical Vibrations papers (2022-23, 2023-24)
Explain Undamped free and forced vibration of multi degree freedom system? 10 2
Appeared in: 2022-23 · 2023-24
Mechanical Vibrations — Other Year Papers
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