Can a chassis be too stiff?
Can a chassis be too stiff?
You can hardly get a chassis rigid enough, but there are cases where certain parts of the chassis are too stiff. Telltale signs your chassis is too rigid are cracks and wrinkles on the frame and sheetmetal splitting on the body and other structures. If things are cracking, chances are they are moving.
How do you improve chassis stiffness?
A weld-in roll cage or stitch welding the chassis are proven ways to increase the rigidity of a chassis. However, neither is practical for most street cars. Instead, practical solutions come in the form of “bolt-on” strut tower braces, chassis braces and bolt-in roll bars.
How do you test chassis stiffness?
The testing method consists of attaching the frame with suspension to two beams. A force is applied to one of the beams, causing a torsional load on the frame. From displacements of certain nodes of the frame, overall and sectional torsion stiffness is then determined.
Why are race cars so stiff?
It’s a black art, but the very basic answer, as cmoose says, is that higher loadings – braking, cornering, acceleration – will need more resistance (stiffness) from the suspension system, in order to control body movement and roll.
What is torsion stiffness?
Often described as torque per unit deflection, torsional stiffness is significant in positional systems and describes a coupling’s resistance to torsional deflection. Torsional deflection is the inverse of torsional stiffness and is defined by deflection per unit torque.
What is torsional rigidity of a chassis?
Torsional rigidity of the chassis is in design; if it is inadequate, the chassis will affect the suspension performance [6]. Torsional Rigidity shows how much torque is needed to deform a component. Torsional rigidity is a determinant of frame performance of cars [4].
What does the structural rigidity of a chassis affect?
What does the structural rigidity of a chassis affect? 1. Reduces squeaks and rattles caused by chassis flex.
Why is stiff suspension good?
A stiff suspension will make sure it’s pushed exactly where it needs to go. Your softer road suspension will keep your back happy so you’re not bouncing over every imperfection in the road. The proper setup for you might fall somewhere in between, and if you watch this video you’ll know why.
What is chassis Flex?
Chassis flex is just another way to generate extra traction through corners on a low traction track. Its not always a good thing. On high traction tracks it will slow down cornering speed and increase traction rolling.
