An engine valve train can be modeled as an equivalent mass, equivalent damping, and two stiffnesses, one due to the valve spring and one due to the elasticity of the push rod (Figure XXXXXXXXXXThe...

An engine valve train can be modeled as an equivalent mass, equivalent damping, and two stiffnesses, one due to the valve spring and one due to the elasticity of the push rod (Figure 8.4.5). The equation of motion is

The input displacement y(t) is determined by the shape and rotational speed of the cam. Suppose the input is as shown in Figure 8.4.6a. Determine the steady-state response of the model for the following parameter values:

Figure 8.4.6 a