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Hi there,
Thanks for your reply.
What you said made me look closer to the subject and I have to agree with you and your practical experience: this 5 link suspension will not lock if you use ruber joints or ball joints in both extremes of the arms.
However I don't totally agree with your explanation for this.
First of all, we are talking about the suspension upright control. It can not rotate. The wheel rotates because it sits on a roller bearing. The suspension works the same way whenever the wheel rotates or it is stoped.
For the suspension upright, there are 6 degrees of freedom: 3 linear on 3 axles (vertical, lateral and longitudinal) and 3 rotational over the same 3 axles.
2 longitudinal arms stop longitudinal movement and rotation over the lateral axle.
3 lateral arms stop lateral movement and rotation over the longitudinal and vertical axles.
Vertical movement is allowed and controlled by the spring and damper.
Regarding the Guide Rod, the way it is designed it really looks like it would act as a spring together with the rubber joints.
I'm going to strengthen those in my car and see if I lose some mid corner understeer.
Regards
Joao
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