# 2nd order system

1. ### 2nd Order Control system PD controller

Hi, This question on PD control is from a practice quiz. 1. Homework Statement If you can't see it- the question asks to find values for Kp and Kd such that the system achieves 5% OS and has a settling time Ts of 3s. Cs = 3 Cd = 2 m = 5 2. Homework Equations ω_n^2/(s^2 + 2ζw_n + ω_n^2) -...
2. ### Finding the undamped natural frequency of 2nd order system

the following 2nd order differential equation is given: 2y'' + 4y' +8y=8x.....................................(1) i want to find damping ratio, undamped natural frequency, damping ratio coefficient and time constant for the above system. solution: comparimg (1) with general system equaion...