Time Domain & Frequency Domain - Mechatronics

• Time Domain– The time domain is a record of the response of adynamic system, as indicated by some measuredparameter, as a function of time. This is the traditionalway of observing the output of a dynamic system.– An example of time response is the displacement ofthe mass of the spring-mass-damper system versustime in response to the sudden placement of anadditional mass (here 50% of the attached mass) onthe attached mass. The resulting response is the stepresponse of the system due to the sudden applicationof a constant force to the attached mass equal to theweight of the additional mass. Typically when weinvestigate the performance of a dynamic system weuse as the input to the system a step input.Time Domain & Frequency Domain K. Craig 10