MECHANICAL ENGINEERING
OVERVIEW
The importance of understanding and behing able to determine the dynamic response of physical systems has long been recognized. It has been traditional in engineering education to have separate courses in dynamic mechanical systems, circuit theory, chemical-process dynamics, and other areas.[1] A system is any collection of interacting elements for which there are cause-and-effect relationships among the variables. Dynamic systems is the study of time dependent variables. The types of systems classifications include lumped, distributed 
, continuous, discrete-time , hybrid , nonquantitized, quantitized, fixed, time-varyiant , linear and nonlinear systems . We apply these classifications to translational mechanical systems, rotational mechanical systems, electrical systems, electromechanical systems, thermal systems, hydraulic systems to name but six types.[2]
“Modern control systems includes frequency-response , state variable , linear feedback , variable feedback , open-loop and closed-loop and much more. Mechatronic systems are a recent type of system where feedback control systems are paramount. Hybrid fuel automobiles and efficient wind power generation are two examples of systems that benefit from mechantronic design methods. Embedded computers that include actuators , sensors , servo amplifiers , optical encoders , accelerometers and digital gyroscopes are many more examples of contemporary control systems.[3]
