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Self-paced Beginner

Mechanical Vibration

4(5)

18 enrolled

1717 views

FREE

517 min

Anytime

Hindi

1717 views

Saurabh Kumar GuptaMechanical Engineer

Mechanics & Turbomachinery

Mechanical Engineering

Lifetime access
Foundational Learning
Access to Study Materials
Self-Paced Learning

Why enroll

People enroll in the course “Mechanical Vibration” to understand how oscillations and dynamic forces affect machines and structures, which is critical for ensuring performance, safety, and reliability. The course helps learners analyze vibration behavior, identify causes of excessive vibration, and apply techniques for vibration control and isolation. It is especially valuable for engineers and technicians working with rotating equipment, automobiles, turbines, and industrial machinery, as it enables them to reduce noise, prevent failures, and improve the lifespan and efficiency of mechanical systems.

Your instructor

Saurabh Kumar Gupta

Content Manager

Mechanical Engineer

5+ yrs experience·India

Is this course for you?

You should take this if

You work in Mechanics & Turbomachinery
You're a Mechanical Engineering / Noise & Vibration Engineering professional
You prefer self-paced learning you can revisit

You should skip if

You need a different specialisation outside Mechanical Engineering
You need live interaction with an instructor

Course details

Mechanical vibration refers to the oscillatory motion of mechanical systems, where objects or structures vibrate about their equilibrium positions. These vibrations can be caused by external forces, such as friction or impact, or by internal forces, like imbalance or misalignment. Mechanical vibrations can be classified into different types, including free vibration, forced vibration, and self-excited vibration. Understanding mechanical vibration is crucial in designing and analyzing systems, such as engines, gearboxes, and structures, to minimize vibration-induced damage, noise, and fatigue, and to ensure safe and efficient operation. By applying principles of vibration analysis, engineers can predict and mitigate potential vibration problems.

Course suitable for

Key topics covered

1. Introduction to Mechanical Vibration

2. Types of Vibration (Free, Forced, Damped)

3. Vibration Analysis (Frequency, Amplitude, Phase)

4. Single-Degree-of-Freedom Systems

5. Multi-Degree-of-Freedom Systems

6. Vibration Control and Isolation

7. Applications in Mechanical Engineering (Rotating Machines, Gears, Shafts)

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

28 lectures8 hr 37 min

Why Vibration is Important?
6 min
Introduction Of Vibration
16 min
Classification of vibration & Elements of Vibratory System
15 min
Simple Harmonic Motion
14 min
Springs In Combination
19 min
Natural Vibration
23 min
Numerical On Mass-Pulley-Spring System
26 min
Mass-Pulley-Spring System
39 min
Oscillation Of liquid in a U-tube
10 min
Oscillations Of Floating Body
11 min
Angular Oscillations
26 min
Springs Having Mass
9 min
Vibration In Beam
30 min
Effect of Inertia In Vibration of Beams
8 min
Numerical On Free Undamped Vibration
26 min
Gate Previous Year Numerical On Free Undamped Vibration
24 min
Gate Previous Year Numerical On Free Undamped Vibration
29 min
Compound Pendulum
5 min
Free Torsional Vibration For Single Rotor
12 min
Free Torsional Vibration For Two Rotor System
10 min
Free Torsional Vibration For Three Rotor System
25 min
Torsional Equivalent Shaft
22 min
Torsional Vibration For Three Rotor System (Numerical)
15 min
Free Damped Vibration
20 min
Overdamped System And Critical Damped System
28 min
Free Under-damped Vibration
17 min
Logarithmic Decrement
24 min
Previous Year Numerical ESE
8 min

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Questions and Answers

Q: You're reviewing a GA drawing during DFMEA sign-off and searching "how to read vibration isolator symbol on mechanical drawing". The drawing shows a motor mounted on four spring symbols with a dashed line through each spring and a note: "k = 18 kN/m (EA)". No damping value is called out. Based on the drawing alone, what assumption is safest for vibration analysis?

A: That's the most common mistake — importing assumptions that aren't on the print. The dashed spring symbol doesn't buy you damping, and EA here is per isolator unless otherwise dimensioned. For DFMEA you stick to what's explicitly controlled on the drawing; adding assumed damping masks a resonance risk you can't justify with rev 4 documentation.

Q: Field data shows a gearbox with a dominant vibration peak exactly at shaft speed, no harmonics, and amplitude increasing linearly with RPM. You're Googling "vibration at running speed no harmonics root cause" before the DFMEA review. Which failure mode best fits all observations?

A: That's the most common mistake — blaming gears because it's a gearbox. Pure 1× running speed with linear growth points straight at imbalance; misalignment and wear bring harmonics and load sensitivity that just aren't there in the data.

Q: An aluminum bracket supporting a shaker table operates at 60 Hz in a humid coastal environment. You're searching "aluminum vibration fatigue corrosion environment". Cracks initiate after 18 months at fastener holes. Which degradation mechanism dominates?

A: That's the most common mistake — mixing up SCC with vibration fatigue. At 60 Hz you're deep into high-cycle territory, and the coastal environment just seeds pits that spike local stress. The failure timing lines up with fatigue, not a static corrosion mechanism.

Q: You're selecting mounts for a compressor and Googling "how to select vibration isolator natural frequency". The excitation frequency is fixed at 30 Hz. To achieve isolation, which design target is appropriate?

A: That's the most common mistake — chasing damping instead of frequency separation. Isolation only starts once you're well above √2 times the natural frequency; landing near excitation just amplifies motion and blows your DFMEA margins.