Can I Use Lagrangian Equations to Calculate a Car's Response on an Uneven Road?

In summary, the conversation discusses the calculation of system response for a car driving over an uneven road with a bump height of 0.05 and a length of 20m between each bump. The speaker mentions having the stiffness matrix and mass matrix, but is unsure about the next step, which may involve using Lagrangian equations of motion. Another person in the conversation brings up the possibility of calculating an ODE or using a transfer function to analyze the system. The discussion also touches on the concept of a 7DOF car and the factors that contribute to its degrees of freedom.
  • #1
alexisonsmith
29
0
So I am trying to calculate the system responsee if a car is driving 30mph over an uneven road with a bumpb of height 0.05 and a length of 20m between each bump. I have the stiffness matrix, mass matrix etc. However I am unclear about the next step, I think possibly by using the Lagrangien equations of motion but I am not sure

Thanks,

Alex
 
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  • #2
you'll likely calculate an ODE with a forcing component... or the transfer function using displacement at two points (more likely).
But the reason I came to read this is really the "7DOF Car" part... How can you have 7 degrees of freedom? Do you have a DeLorean with a Flux Compensator :)? If it is a "car", I can really only see 2 DOF...
Please explain...
 
  • #3
The reason is that you take into account the front and read suspension that is 4, after that the engine, 2 passengers on seats and some luggage in the back, at the moments I have the motion of x (in the vertical condition) and the motion around theta...
 

1. What is a 7 degree of freedom car?

A 7 degree of freedom car is a vehicle that has the capability to move in seven different directions or degrees of freedom. This means that it has the ability to move forward and backward, side to side, up and down, and also rotate around three different axes.

2. What are the advantages of a 7 degree of freedom car?

The advantages of a 7 degree of freedom car include enhanced maneuverability, improved stability, and the ability to navigate through complex and uneven terrain. It also allows for more precise movements and can adapt to different driving conditions.

3. How is a 7 degree of freedom car controlled?

A 7 degree of freedom car is typically controlled through a combination of sensors, actuators, and a central processing unit. The sensors gather data about the car's environment and the actuators respond by adjusting the car's movement accordingly.

4. What are some potential applications of a 7 degree of freedom car?

A 7 degree of freedom car can be used in a variety of industries such as military, transportation, and agriculture. It can also be utilized for search and rescue missions and in hazardous environments where human access is limited.

5. How does a 7 degree of freedom car compare to other autonomous vehicles?

Compared to other autonomous vehicles, a 7 degree of freedom car offers greater versatility and flexibility in terms of movement. It also has the ability to adapt to different terrains and situations, making it suitable for a wider range of applications.

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