ME 356 — Strength of Materials II
BSc BSc Mechanical Engineering · Kwame Nkrumah University of Science and Technology
Objectives The intent of this course is to: Sensitize students to the sources of vibration and noise in mechanical systems Equip students to be able to model and analyze simple vibration systems Enable students to make design modifications to reduce vibration and noise and improve the life of components in structures and machines systems Content This course covers vibrations of single to multiple degrees of freedom systems with and without damping. In addition, it includes design for vibration isolation and suppression, practical considerations in vibration and human tolerance for vibration. The course explores the following topics: Free Vibration of single degree of freedom linear systems: Harmonic motion, Vibration System Modelling, Energy methods and Stiffness. Response to Harmonic Excitation: Forced and Base Excitation of Undamped and Damped One-degree-of-freedom Systems, Rotating Unbalance, Coulomb and other forms of damping. General Forced Response: Impulse response functions, response to arbitrary and periodic inputs, transform methods, shock spectrum, Computer simulation of Time response of single degree of freedoms systems using Euler Method. Multiple-Degree-of-Freedom Systems: Two-Degree-of-Freedom Undamped Models, Eigenvalues and Natural Frequencies, Systems with More than Two Degrees of Freedom, Systems Viscous Damping, Forced Systems, Lagrange’s Equations. Torsional vibration systems including geared systems. Design for Vibration: Acceptable Levels of Vibration, Vibration Isolation and Suppression, Practical Speeds of Rotating Disc, Optimization. Vibration Testing and Measuring: Measuring instruments and testing. Mode of Delivery The mode of delivery of this course will be blended i.e., in person and online Reading Materials W. T. Thompson, Theory of Vibration with Applications, 4 th edition, Chapman and Hall. Engineering Vibration, International & 3rd Ed., Daniel Inman, Prentice Hall, 2008. Vibration Damping of Structural Elements, C.T. Sun and Y.P. Lu, Prentice Hall, 1995. Vibration with Control, Daniel J. Inman, Wiley, 2006. Modal Testing: Theory, Practice and Application, 2nd Ed., D. J. Ewins, Wiley, 2000
- Credits
- 2
- Level
- Year Three
- Semester
- Semester Two
Other courses on this programme
- ECON 151 — Introduction to Economics I
- MATH 351 — Numerical Methods
- MATH 353 — Probability and Statistics
- ME 252 — Electrical Engineering Machines
- ME 352 — Fluid Dynamics II
- ME 362 — Vibrations I
- ME 366 — Heat Transfer
- CE 155 — Environmental Studies
- EE 151 — Applied Electricity
- EE 152 — Basic Electronics
- ENGL 157 — Communication Skills I
- ENGL 158 — Communication Skills II
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