// multi-utility computation suite · offline · instant · precise
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auto.suspension-spring-rate Calculator
Calculates the spring rate and wheel rate needed for a target ride frequency given corner weight and suspension motion ratio. Used in motorsport and performance car setup to tune handling balance.
Inputs
Corner Weight
Body or object weight. For health calculators, usually in kg or lbs.
Ride Freq
Cycles per second (Hz). Audible sound: 20 Hz – 20 kHz. Make sure units match what the formula expects.
Motion Ratio
Reference formula or conversion factor shown for context.
Travel Mm
Reference formula or conversion factor shown for context.
Results
spring rate (kN/m)
The value at the specified point or condition.
wheel rate (N/m)
The value at the specified point or condition.
static deflection (mm)
Maximum lateral displacement of the beam under load. Codes typically limit to L/360 for floors (to avoid cracking finishes) or L/240 for roofs. Excessive deflection signals the beam is undersized.
natural frequency (Hz)
Frequency at which the structure resonates freely (Hz). If machinery operates near this, resonance can amplify vibrations dangerously. Engineers detune structures to avoid it.
travel available (mm)
Reference formula or conversion factor shown for context.
sports car target
Reference formula or conversion factor shown for context.