## Describe in as much detail as possible the steady-state error signal in response to a step excitation.

A continuous-time unity-gain (tracking) feedback system has a forward-path transfer function with exactly one pole at the origin of the s-plane. (a) Describe in as much detail as possible the steady-state error signal in response to a step excitation. (b) Describe in as much detail as possible the steady-state error signal in response to a ramp excitation. The transfer function of a continuous-time system has one finite pole in the open left half-plane at s =  s  0   and no finite zeros. If you wanted to make its response to a step excitation approach its final value faster, how would you change  s0  ?

### design suitable bearings to support the load for at least 5E8 cycles at 1 200 rpm using deepgroove ball bearings.

The shaft shown in Figure P11-4 was designed in Problem 10-19. For the data in row (a) of Table P11-1, and the corresponding diameter of shaft found in Problem 10-19,….

### Find the minimum film thickness for a long bearing with the following data: 30-mm dia, 130 mm long, 0.0015 clearance ratio, 1 500 rpm, ISO VG 100 oil at 200°F, and supporting a load of 7 kN.

1.       A paper machine processes rolls of paper having a density of 984 kg/m3. The paper roll is 1.50-m OD X 22-cm ID X 3.23-m long and is on a simply supported, 22-cm OD, steel….

### Find the minimum film thickness for a bearing with these data: 30-mm dia, 25 mm long, 0.0015 clearance ratio, 1 500 rpm, ON = 30, ISO VG 220 oil at 200°F.

1.       Problem 7-12 estimated the volume of adhesive wear to expect from a steel shaft of 40 mm dia rotating at 250 rpm for 10 years in a plain bronze….