hwk05

# hwk05 - x(t the input is the vertical road surface...

This preview shows page 1. Sign up to view the full content.

_ 1 _ ME 375 HOMEWORK #5 Spring 2010 Out: Feb. 10 th , 2010 Due: Feb. 17 th , 2010 Problem #1 (30%) The dynamics of vertical motion of a vehicle can be approximated with a simple 2 mass model, the “Quarter-car Model”. The model captures the interaction of the suspension stiffness and damping, the tire stiffness, the vehicle body mass and the tire/wheel mass with variations in the road surface. Where: - M is ¼ the vehicle body mass [kg]; m is the mass of one wheel/tire [kg] - K is the suspension spring stiffness [N/m]; C is the wheel stiffness [N/m] - B is the suspension damping constant [Ns/m] -
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: x(t), the input , is the vertical road surface profile -z(t) is the vertical position of the vehicle body -y(t) is the vertical position of the wheel Recall from HW 2 the coupled equations of motion are: (a) Consider the displacement z(t) as the output of the system. By implementing the Laplace transform, determine the transfer function from the input x(t) to the output z(t). (b) What is the corresponding input/output differential equation? Problem #2 (30%) Problems 3.5 and 3.6 from the textbook. Problem #3 (40%) Problems 3.19 and 3.20 from the textbook. M m K B C x(t) y(t) z(t)...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online