2 degree of freedom mass spring damper system

[bowhntr]

For a project we are supposed to design the suspension system of a half car model. We are supposed to determine the values of the spring constants and damping constants. We are given the mass of the half car, the moment of inertia about the center of mass, and the wheel base. We are given a range that the bouncing mode should fall in and a range for the pitching mode. The center of mass does not necessarily need to be in the geometrical center. We are also given a range for the damping ratio for each quarter of the car.

If you have any ideas I would really appreciate it.

 

[Navin A S]

To determine the spring constants and damping constants for your half car model, you need to first consider the desired bouncing mode and pitching mode ranges. You can then use these ranges to calculate the necessary stiffness and damping coefficients to achieve the desired range. You can also use the mass of the half car, the moment of inertia about the center of mass, and the wheel base to calculate the natural frequency of the system. Based on this natural frequency and the desired ranges, you can then calculate the required stiffness and damping coefficients. Finally, you can use the damping ratio range for each quarter of the car to calculate the necessary damping coefficients.