Nice to meet you.
We are designing a structure that holds parts using compression coil springs. The structure works in the way that the part connecting to the spring rotates with respect to the central axis of the coil, and the length of the sping during use is constant. We are thinking of a coil spring with SWP-B material, wire diameter: 0.7 mm, coil outer diameter: 11.2 mm, free length: 13 mm, and length when in use: 8 mm. It is estimated that the part connecting to the spring can withstand a load of 3.4N. However, but if the spring comes into close contact with the connecting part, rotates with the part and twists, the coil diameter and free length will change, so the load will change. What should I do?
And in that case, for example, if the spring rotates (twists) by 20 degrees, what is the load?
The coil diameter changes slightly as the spring is twisted.
However, it is considered that the load is not affected if the spring is twisted to about 20 degrees.
