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Analysis and Synthesis of Mechanisms
(502210)
Teaching Scheme Examination Scheme:
Lectures: 3 Hrs per week Paper: 100 Marks
Paper Duration: 3 Hrs.
1. Basic Concepts: Definitions and assumptions, planar and spatial mechanisms,
kinematic pairs, degree of freedom
2. Kinematic Analysis Of Complex Mechanisms: velocity-acceleration analysis of
complex mechanisms by the normal acceleration and auxiliary point methods.
3. Dynamic Analysis of Planar Mechanisms: - Inertia forces in linkages, kinetostatic Analysis of mechanisms by matrix method. Analysis of elastic mechanisms, beam element, displacement fields for beam element, element mass and stiffness matrices,system matrices, elastic linkage model, equations of motion.
4. Curvature theory: Fixed and moving centrodes, inflection circle, Euler- Savy
equation, Bobillier constructions, cubic of stationary curvature, Ball’s point,
Applications in dwell Mechanisms
5. Graphical Synthesis of Planar Mechanisms: Type, number and dimensional
synthesis, function generation, path generation and rigid body guidance problems,accuracy (precision) points, Chebychev Spacing, types of errors, Graphical synthesis for function generation and rigid body guidance with two, three and four accuracy points using pole method, center point and circle point curves, Bermester points,Synthesis for five accuracy points, Branch and order defects, Synthesis for path
generation.
6. Analytical synthesis of Planar Mechanisms:- Analytical synthesis of four-bar and slider- crank mechanism, Freudenstein’s equation, synthesis for four accuracy points,compatibility condition, synthesis of four-bar for prescribed angular velocities and accelerations using complex numbers. Complex numbers method of synthesis, the dyad, center point and circle point circles, ground pivot specifications, three accuracy point synthesis using dyad Method, Robert Chebychev theorem, Cognates
7. Kinematic Analysis of Spatial Mechanisms : Denavit-Hartenberg parameters, matrix method of analysis of spatial mechanisms.
References:
1. Theory of Machines and Mechanisms, A. Ghosh and A.K.Mallik, Affiliated East-
West Press.
2. Kinematic Synthesis of Linkages, R. S. Hartenberg and J. Denavit, McGraw-Hill.
3. Mechanism Design - Analysis and Synthesis (Vol.1 and 2), A. G. Erdman and G. N.Sandor, Prentice Hall of India.
4. Theory of Machines and Mechanisms, J. E. Shigley and J. J. Uicker, 2nd Ed.,
McGraw-Hill.
5. Design of Machinery: An Introduction to the Synthesis and Analysis of
Mechanisms and Machines, Robert L.Norton, Tata McGraw-Hill, 3rd Edition.
6. Kinematics and Linkage Design, A.S.Hall, Prentice Hall of India.
Term Work:
The term work comprises of assignments on the following topics.
1. Complex Mechanism Analysis.
2. Dynamic Analysis.
3. Graphical and Analytical Synthesis.
4. Curvature Theory.
Use of softwares such as 'ADAMS' and 'Working Model' is recommended
For more details, visit http://www.unipune.ernet.in/stud_info/Syllabi/Syllabus_2008.html
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