Formula Used:
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Spring Track Width is the distance between the springs on either side of the axle. It is a critical parameter in vehicle suspension design that affects roll stiffness and overall vehicle handling characteristics.
The calculator uses the formula:
Where:
Explanation: This formula calculates the optimal spring track width based on various suspension parameters including roll rate, tyre characteristics, and anti-roll bar properties.
Details: Accurate calculation of spring track width is crucial for proper suspension tuning, vehicle stability, roll control, and overall handling performance. It ensures optimal weight distribution and suspension geometry.
Tips: Enter all values in the specified units. Ensure positive values for all parameters. The rear track width and all rate values must be greater than zero for valid results.
Q1: Why is spring track width important in suspension design?
A: Spring track width affects the vehicle's roll center height, roll stiffness distribution, and overall handling characteristics, making it a critical parameter for optimal suspension performance.
Q2: How does anti-roll bar affect spring track width calculation?
A: The anti-roll bar contributes additional roll stiffness, which is subtracted in the formula to determine the appropriate spring track width for the desired roll characteristics.
Q3: What are typical values for spring track width?
A: Spring track width typically ranges from 0.8 to 1.2 meters for most passenger vehicles, depending on vehicle size and suspension design.
Q4: How does tyre vertical rate influence the calculation?
A: Tyre vertical rate represents the spring rate of the tyre itself and significantly affects the overall suspension stiffness and thus the required spring track width.
Q5: Can this calculation be used for front suspension?
A: While the formula is primarily designed for rear suspension, the same principles can be applied to front suspension with appropriate parameter adjustments.