Research Article

Forced Vibration of a Timoshenko Beam Subjected to Stationary and Moving Loads Using the Modal Analysis Method

Figure 6

Deformed shapes of a simply supported Timoshenko beam at five different times ( = 0, 0.25, 0.5, 0.75, and 1) when the beam is subjected to a point bending moment moving at four different constant speeds: (a) ; (b) ; (c) ; (d) , where is the lowest critical speed.
(a)
(b)
(c)
(d)