I am facing a problem in toroidal bend when we need to specify the 2 parallel planes which defines the lenth or radius of the toroidal bend. how u people select the these parallel planes. And also any other applications of toridal bend besides Tyres.
Actually, the area formula of a circle is A=pi*rad^2. The curcumference formula is the first derivative of the area formula, or C=2*pi*rad, or C=pi*dia. (See, for example, Mark's Standard Handbook for Mechanical Engineers p. 2-8)
If you want a diameter of 10, then your length would be 31.416.
thank you friends, I have one problem helical sweeping along the non-linear trajectories. for example I want to model telephone cord which is a spring but its axis is not a stright line, it is a curve.