(1) Intensity calculation formula, K is the curvature coefficient, ;
F is the load;
C is the spring index (also known as the winding ratio), C = D2/d;
[Ï„] is the allowable torsional stress of the spring material. From this, the spring wire diameter d can be calculated.
(2) Stiffness formula In formula, n is the effective number of springs;
G is the shear modulus of the spring;
λ is the amount of spring deformation;
D2 is the diameter of the spring coil;
The Other symbols have the same meaning as before.
(3) Stability calculation formula To limit the spring load F is less than the critical load Fcr at the time of the instability. Generally F = Fcr/(2 ~ 2.5), where the critical load can be calculated as follows: Fcr = CBkH0
In the formula, CB is the coefficient of instability Note: 1 --- fixed at both ends; 2 --- fixed at one end; 3 --- free rotation at both ends
F is the load;
C is the spring index (also known as the winding ratio), C = D2/d;
[Ï„] is the allowable torsional stress of the spring material. From this, the spring wire diameter d can be calculated.
(2) Stiffness formula In formula, n is the effective number of springs;
G is the shear modulus of the spring;
λ is the amount of spring deformation;
D2 is the diameter of the spring coil;
The Other symbols have the same meaning as before.
(3) Stability calculation formula To limit the spring load F is less than the critical load Fcr at the time of the instability. Generally F = Fcr/(2 ~ 2.5), where the critical load can be calculated as follows: Fcr = CBkH0
In the formula, CB is the coefficient of instability Note: 1 --- fixed at both ends; 2 --- fixed at one end; 3 --- free rotation at both ends
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