Helical Sweep: Springs with variable pitch and Profile
I have to design a spring with two different pitches & diameter along its length.
A sample is as shown below.
I wanted to know how is the transition from diamter 1 ( with pitch 1 ) to diameter 2 ( with pitch 2 ) handled generally?
I am currently keeping the transistion length less than the least pitch around it since if the transition length will be more than the pitch around it then an entire coil will come within the transition zone having neither of the pitches.
Am I looking at this problem correctly? or do I have faulty assumptions?