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Mechanics

By Prof. Anjani Kumar Tiwari   |   IIT Roorkee
Learners enrolled: 878   |  Exam registration: 32
ABOUT THE COURSE:
This course covers the basic principles of mechanics. The course discusses the free body diagram, equilibrium of rigid bodies, analysis of trusses, beams, cables, virtual work, the motion of particles and rigid bodies, conservation laws, the moment of inertia, the principle of work energy, and general plane motions.

INTENDED AUDIENCE: Undergraduate students

PREREQUISITES: Any 12th pass students (in science stream) can do this course. There are no prerequisite courses.

INDUSTRY SUPPORT: Companies which delas with mechanical instrumentations such as Larsen & Toubro, BHEL etc.
Summary
Course Status : Completed
Course Type : Core
Language for course content : English
Duration : 12 weeks
Category :
  • Mechanical Engineering
  • Physics
Credit Points : 3
Level : Undergraduate
Start Date : 22 Jul 2024
End Date : 11 Oct 2024
Enrollment Ends : 05 Aug 2024
Exam Registration Ends : 16 Aug 2024
Exam Date : 03 Nov 2024 IST

Note: This exam date is subject to change based on seat availability. You can check final exam date on your hall ticket.


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Course layout

Week 1: Concepts of particles and rigid bodies, vectorial representation of forces and moments, couple moment, reduction of a force system to a force and a couple.

Week 2: Free body diagram, support reactions, equilibrium of rigid bodies in two and three dimensions.

Week 3: Distributed forces, beams, flexible cables.

Week 4: Truss, analysis of truss using method of joints and method of sections.

Week 5: Basics of constrained motion, degrees of freedom, generalized coordinates, principle of virtual work for a particle and rigid body, condition for equilibrium for a conservative system.

Week 6: Friction, static and kinetic friction, coefficient of friction, sliding friction, ladder friction, belt friction, rolling resistance.

Week 7: Kinematics of particles, cartesian coordinates, planar polar coordinates, spherical coordinates, and cylindrical coordinates.

Week 8: Equation of motion in different coordinate systems.
 
Week 9: Work energy method, conservation of energy, impulse and momentum relation, conservation of momentum, impact, direct impact and coefficient of restitution, oblique central impact, variable mass problem.

Week 10: Moment of Inertia, parallel axis theorem, perpendicular axis theorem, radius of gyration, product of inertia of composite bodies, moment of inertia about any arbitrary axis, principal axis of inertia.

Week 11: Translation and rotation of rigid bodies, relative velocity and relative acceleration.

Week 12: Equation of motion, general plane motion and work energy relation, angular momentum, impulse-momentum equation, Euler’s equation of motion and three-dimensional motion about a fixed point.

Books and references

(i) Meriam J.L. and Kraige L.G., “Engineering Mechanics: Statics”, 6th Edition, John Willey and Son’s (2012)
(ii) Meriam J.L., and Kraige L.G., “Engineering Mechanics: Dynamics”, 6th Edition, John Willey and Son’s (2012)
(iii) Beer F.P and Johnson E.R., “Vector Mechanics for EngineersStatics and Dynamics”,9th Edition, Tata McGraw-Hill Publishing Company (2010)
(iv) Pytel A. and Kiusalaas J., “Engineering Mechanics: Statics” 3rd Edition, Cengage Learing (2010)
(v) Pytel A. and Kiusalaas J., “Engineering Mechanics: Dynamics”3rd Edition Cengage Learing (2010)

Instructor bio

Prof. Anjani Kumar Tiwari

IIT Roorkee
Prof. Anjani Kumar Tiwari received his Ph.D. from the Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research Mumbai in 2013. He then joined as a Postdoctoral fellow at the European Laboratory for NonLinear Spectroscopy, Florence, Italy. Subsequently, he joined as a DST INSPIRE Faculty in the Department of Physics at IIT Kanpur. From April 2021 onwards, Anjani Kumar Tiwari is working as assistant professor in the Department of Physics at IIT Roorkee.
He is the recipient of the prestigious “INSA Medal for Young Scientists 2019” for innovative experiments on random lasing in scattering media. His research interests include Random Laser, Nano-Optics, Topological photonics, and Liquid Crystals.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 
03 November 2024 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Roorkee .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team


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