Curvature and radius of curvature of central wheel are solved and non end cutting conditions of actual profile of central wheel are deduced.
Roundness depends on the sharpness or radius of curvature of the edges.
The special meshing of convex and concave teeth profile makes the relative radius of curvature of the contacting point longer.
The empirical expressions of solid phase friction coefficient for horizontal pipe, rising pipe and bends with different radius of curvature were established.
In the case of considering the misfit dislocation, relaxed lattice mismatch, the radius of curvature and density of misfit dislocation were calculated.
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