Calculation of the reduced stiffness of a simple suspension

In summary, the problem is how to reduce the stiffness of a front suspension on the right side in the given picture, with the equation k_f=k/cos^2E. The solution involves adjusting the vertical stroke to be proportionally smaller than the inclined stroke by a factor of cos (ε), in order to have a smaller force on the vertical spring.
  • #1
Semat10
11
0
Hello,

I have a problem with reducing a stiffness of a front suspension. Unfortunately I don't understand how to get the reduced stiffness on the right side in the picture. (k_f=k/cos^2E)

front_suspension.jpg


Thanks in advance for your help.

Many greetings,
Semat10
 
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  • #2
The vertical stroke equals the inclined stroke times the cosine of angle ε.
 
  • #3
Hello,

I was thinking the same thing but I don't know where the square came from?

Many greetings
 
  • #4
The force of the vertical spring must be less than ##N_f*cos (ε)## ; therefore, the vertical stroke must be proportionally smaller ##(cos (ε))## than the inclined one (accounted for twice).

##k_{vertical} = N_f / {Vertical~stroke} = N_f / {Inclined~stroke}*cos (ε)##

##k_{vertical}/k_{inclined}=?##
 
Last edited:

1. What is the purpose of calculating the reduced stiffness of a simple suspension?

The reduced stiffness of a simple suspension is a measure of the suspension's ability to absorb and dampen vibrations. It is an important factor in determining the overall performance and stability of a suspension system.

2. How is the reduced stiffness of a simple suspension calculated?

The reduced stiffness can be calculated by dividing the actual stiffness of the suspension by the damping ratio, which is a measure of the amount of energy dissipated by the suspension.

3. What factors can affect the reduced stiffness of a simple suspension?

The reduced stiffness of a simple suspension can be affected by various factors such as the type and quality of the suspension components, the design and geometry of the suspension system, and the external forces acting on the suspension.

4. Why is the reduced stiffness of a simple suspension important in vehicle design?

The reduced stiffness of a simple suspension is crucial in vehicle design as it directly affects the ride comfort, handling, and overall stability of the vehicle. A well-designed suspension with an optimal reduced stiffness can provide a smooth and controlled ride for the occupants.

5. Can the reduced stiffness of a simple suspension be adjusted?

Yes, the reduced stiffness of a simple suspension can be adjusted by changing the stiffness or damping characteristics of the suspension components. This can be done through various methods such as adjusting the spring rate, adding or removing dampers, or changing the geometry of the suspension system.

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