Spring Design ની ગણતરી કેવી રીતે કરવી
Spring Design શું છે?
Spring design calculates stress and deflection under load. Springs store and release energy, used in many mechanical systems.
સૂત્ર
Calculate stress: τ = (16×D×F) / (π×d³) for compression spring
- D
- D value — Variable used in the calculation
- F
- F value — Variable used in the calculation
પગલું દ્વારા પગલું માર્ગદર્શિકા
- 1Calculate stress: τ = (16×D×F) / (π×d³) for compression spring
- 2Deflection: δ = (64×N×F×D³) / (G×d⁴)
- 3Verify safety margin and fatigue life
Worked Examples
ઇનપુટ
Spring wire d=5mm, mean dia D=40mm, N=10 coils, F=100N
પરિણામ
Deflection ≈ 3.4 mm, stress ≈ 82 MPa
Typical mild steel spring
Common Mistakes to Avoid
- ✕Neglecting stress concentration factor
- ✕Using wrong wire properties (modulus G)
Frequently Asked Questions
Why does mean diameter matter more than wire diameter?
Spring stiffness proportional to d⁴ but stress uses d³; larger diameter dominates stiffness.
What causes spring failure?
Fatigue from cyclic loading, stress concentration at coils, corrosion.
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