Numerical examples are presented to illustrate the behaviour of spiral bevel gear motion error under load as the unloaded motion error is modified.
Classical Hertz theory is used to calculate the contact deformation. Due to the complex geometry of spiral bevel gear teeth, the tooth bending stiffness is calculated by finite elements. The effects of tooth composite deflection caused by bending and shearing, tooth contact deformation and initial profile separation due to profile mismatch are considered in the development.
This paper presents the basis of a Loaded Tooth Contact Analysis (LTCA) program predicting the motion error of spiral bevel gear sets under load, and explores some of the influences of the unloaded motion error curve shape and amplitude over the kinematical behaviour under load.
