Abstract
The load-deflection relations and stress characteristics of coil springs with variable mean radii of coils, variable diameters of wires, and variable pitch angles were analyzed by using the finite element method. Nonlinear effects due to contact between the wire and the seat and/or due to contact between adjacent coils were considered in the analysis. Numerical calculations carried out for a barrel-shaped spring, a conical spring, and a cylindrical spring with variable pitch angles indicated that the stresses in the contact part of the wire, particularly near the terminating contact point, depend upon deflections of the springs. This result suggests that the conventional assumption for the stresses of the contact part of the wire is not reasonable. Calculated results were well corroborated with the experimental results.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
