Variable pitch spring calculations

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SUMMARY

The discussion focuses on calculating the spring constant of a variable pitch spring under compression, where the stiffness increases as some coils become inactive. The user seeks a definitive equation to determine the new spring constant "k" after compression by a distance "x." The reference provided is the paper titled "Optimization Design and Calculation of the Variable Stiffness Coil Spring Applied to Vehicles," which offers insights into this calculation. The topic is crucial for applications in vehicle suspension systems where variable stiffness is essential for performance.

PREREQUISITES
  • Understanding of spring mechanics and Hooke's Law
  • Familiarity with variable pitch spring design
  • Knowledge of compression and its effects on spring constants
  • Basic proficiency in mathematical modeling of mechanical systems
NEXT STEPS
  • Research the mathematical models for variable pitch spring stiffness calculations
  • Study the principles of Hooke's Law in relation to variable stiffness
  • Explore the referenced paper on optimization design for practical applications
  • Investigate software tools for simulating spring behavior under compression
USEFUL FOR

Mechanical engineers, automotive designers, and anyone involved in the design and optimization of variable pitch springs in suspension systems.

Malaps
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Hi,
does anyone know how to calculate the current spring constant of a variable pitch spring when under compression. Since some of its coils get inactive when compressed the stiffness is increasing and consequently “k” is changing as well, is there an equation I can use to calculate the new spring value after the spring is compressed by a distance x?
 
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