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Dual Spring Rate Formula:
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Dual spring rate calculation determines the combined stiffness when two springs are used together in a suspension system. This is important for optimizing vehicle performance, ride comfort, and load handling characteristics.
The calculator uses the parallel spring rate formula:
Where:
Explanation: This formula calculates the equivalent spring rate when two springs are used in parallel, which is common in suspension systems with dual-rate springs or helper springs.
Details: Accurate spring rate calculation is crucial for proper suspension tuning, ensuring optimal vehicle handling, ride comfort, and preventing bottoming out or excessive stiffness.
Tips: Enter the spring rates of both springs in kg/mm. Both values must be positive numbers greater than zero for accurate calculation.
Q1: When would I need to calculate dual spring rates?
A: This calculation is useful when designing suspension systems with dual springs, progressive rate setups, or when adding helper springs to an existing suspension.
Q2: Does this formula work for springs in series?
A: No, this formula is specifically for springs working in parallel. Springs in series have a different calculation method.
Q3: What are typical spring rate values?
A: Spring rates vary widely by application. For cars, typical rates range from 2-10 kg/mm for street vehicles, while race cars may use 10-20+ kg/mm springs.
Q4: How does dual spring rate affect ride quality?
A: Dual spring setups can provide a progressive rate that offers comfort over small bumps while maintaining support during hard cornering or heavy loads.
Q5: Can I use this for coilover spring calculations?
A: Yes, this formula applies to any parallel spring configuration, including coilover setups with main and helper springs.