Machine Dynamics Internship

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Sanfoundry offers internships in "Machine Dynamics". Read the complete details below regarding the internship requirements, eligibility criterior and the application process.

Pre-requisite / Skillset for Machine Dynamics Internship

1. Intern should have the ability to calculate the static and dynamic forces of mechanisms.

2. Calculate the balancing masses and their locations of reciprocating and rotating masses.

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3. Intern should be able to compute the frequency of free vibration.

4. Compute the frequency of forced vibration and damping coefficient.

5. Calculate the speed and lift of the governor and estimate the gyroscopic effect on automobiles, ships and airplanes.

6. Must be familiar with the force-motion relationship in components subjected to external forces and analysis of standard mechanisms.

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7. Should have knowledge on the undesirable effects of imbalances resulting from prescribed motions in mechanism.

8. Should be aware on the topics like effect of Dynamics of undesirable vibrations.

9. Principles in mechanisms used for speed control and stability control should be known.

10. Ability to analyse the mechanisms for static and dynamic equilibrium is required.

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11. Should be capable of carrying out the balancing of rotating and reciprocating masses.

12. Should be able to analyse different types of governors used in real life situation.

13. Must be able to analyse the gyroscopic effects on disks, airplanes, stability of ships, two and four wheelers.

14. Understanding the free and forced vibration phenomenon.

15. Must be capable of determining the natural frequency, force and motion transmitted in vibrating systems.


Machine Dynamics Internship Test

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Intern has to take Machine Dynamics internship test in which they will be asked 50 multiple-choice questions. They have to score grade A or A* on this test to be eligible for the internship. Here’s a sample set of questions on the Machine Dynamics topic.

1. A motor car moving at a certain speed takes a left turn in a curved path. If the engine rotates in the same direction as that of wheels, then due to the centrifugal forces
(A) the reaction on the inner wheels increases and on the outer wheels decreases
(B) the reaction on the outer wheels increases and on the inner wheels decreases
(C) the reaction on the front wheels increases and on the rear wheels decreases
(D) the reaction on the rear wheels increases and on the front wheels decreases
View Answer

Answer: B
Explanation: When the engine is rotating in the same direction as that of wheels, then the positive sign is used in the above expression and if the engine rotates in opposite direction, then negative sign is used.

2. When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be
(A) to move the ship towards star-board
(B) to move the ship towards port side
(C) to raise the bow and lower the stern
(D) to raise the stern and lower the bow
View Answer

Answer: A
Explanation: When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be to move the ship towards star-board.When the pitching of a ship is downward, the effect of gyroscopic couple, is to turn the ship towards port side.

3. When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be
(A) to move the ship towards starboard
(B) to move the ship towards port side
(C) to raise the bow and lower the stern
(D) to raise the stern and lower the bow
View Answer

Answer: A
Explanation: When the rotor rotates in the anticlockwise direction, when viewed from the stern and the ship is steering to the left, then the effect of reactive gyroscopic couple will be to lower the bow and raise the stern. When the ship is steering to the right under similar conditions, then the effect of reactive gyroscopic couple will be to raise the bow and lower the stern.

4. Rolling is the turning of a complete ship in a curve towards left or right, while it moves forward.
(A) True
(B) False
View Answer

Answer: B
Explanation: Steering is the turning of a complete ship in a curve towards left or right, while it moves forward, while rolling is rocking from side to side.
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5. Which of the following factor is not responsible for the stability of a 4 wheel vehicle while negotiating a turn?
(A) Pitching
(B) Reaction due to weight of Vehicle
(C) Effect of Gyroscopic couple due to Wheel
(D) Effect of Gyroscopic Couple due to Engine
View Answer

Answer: A
Explanation: Pitching effect is not pronounced in four wheel vehicles and thus has a negligible effect on the stability of the vehicle while the other 3 factors play a vital role in preventing the overturning of the vehicle.

Practice the full set of Machine Dynamics Multiple Choice Questions before applying for the internship.


How to apply for the Machine Dynamics Internship

1. Read the Sanfoundry Internship FAQs

2. Take the Machine Dynamics Internship Test

3. Submit the Internship Application Form

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn | Youtube | Instagram | Facebook | Twitter