Shuh Jing Ying
University of South Florida
USA
Title: Foundation of graduate study in mechanical engineering – advanced dynamics
Biography
Biography: Shuh Jing Ying
Abstract
Dynamics is the foundation of undergraduate study in mechanical engineering. If you are good in dynamics you will be good on all other courses. Advanced dynamics is the foundation for graduate study. I taught advanced dynamics for more than ten years, this is my observation. Why it is so? Because the course of advanced dynamics covers usually many mathematical fundamentals such as vectors, tensors, matrices and rotation operators; principles and applications in dynamics from particle dynamics to rigid body motion, from small oscillation to vibration of systems with multiple degrees of freedom, my course covers also special relativity theory. They are very innovative. And they set the foundation for the study of all the graduate courses. Science is always in progress, dynamics is in the same form. Just say a few examples to illustrate the frontier of dynamics: missile shooting missile is important in our defense, I covered this as an example in particle dynamics. Different ground conditions, flat ground and spherical ground, are studied, computer program is used. Certainly the missile is shot down. However further research can be continued to improve the situation, using a better formulation, better computer program, and faster computer are the possibilities in sight. Space ship travels from earth to mars is another example. The way I presented in the course is classic, no propulsion force while the space ship is travelling in space. This may be not true in real situation. The gravitational affect is assumed to be only one body. For more accurate consideration gravitational affect from two bodies may be further considered. Several rotational motions with different axes can be combined to one through the use of rotation operator. This is important because it usually can save time. However, rotation operator is a relatively new mathematical tool, more research work should be devoted to this subject. Many more examples may be illustrated and will be presented in the conference.
