1. Designing a Music Wire Return Spring
Mechanical Design EngineerBackground
An engineer is designing a mechanical return mechanism and needs a spring rate of approximately 4.8 N/mm using standard music wire.
Problem
Determine if a spring with a 2 mm wire diameter, 16 mm mean coil diameter, and 8 active coils meets the target stiffness.
How to use
Select 'Music Wire' as the material, set the wire diameter to 2 mm, the mean coil diameter to 16 mm, and active coils to 8.
Material: Music Wire (G = 79000 MPa), Wire Diameter: 2 mm, Mean Diameter: 16 mm, Active Coils: 8Outcome
The calculator outputs a spring rate of 4.8218 N/mm and a spring index of 8.0, confirming the design meets the requirements.