Accurate and effective spring design can only be accomplished in today's world using computer programs capable of running hundreds of simultaneous calculations. Following are just a few of the most basic formulas for getting a head start on compression spring design. Call us for design assistance. We can run a thorough analysis and assist you in designing the best spring for your application.
Calculate a spring constant from the spring's geometry and shear modulus.
Calculate pitch, rise angle and solid height.
Calculate the maximum force a spring can take and the shear stress with consideration to the Wahl correction factor.
|Spring wire diameter||d|
|Spring outside diameter||Douter|
|Mean diameter of spring||D|
|Young's modulus of material||E|
|Max force at solid||Fmax|
|Shear modulus of material||G|
|Maximum load possible||Lmax|
|Wahl correction factor||W|
|Density of material||p|
|Poisson ratio of material||v|
|Rise angle of spring coils||θ|
|Maximum shear stress||τmax|