Stiffness Modeling and Sensitivity Analysis for Worm Geared Transmission

Abstract:

The worm geared transmission chain is widely employed in rotary feeding table of machine tools. This article proposes a static stiffness model and conducts sensitivity analysis of the transmission chain. Firstly, a unified static stiffness model is established, considering meshing stiffness, torsional stiffness and pre-load related axial stiffness of worm shaft. Then sensitivity with respect to individual stiffness element is derived based on partially differentiating method. Simulation results show that the closer to the end gear pair or shaft is, the more sensitive meshing stiffness or torsional stiffness is.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 3328-3330
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.3328
• Online since: July 2014
• Authors: Lin Han*, Hou Jun Qi
• Keywords: Sensitivity Analysis, Static Stiffness, Worm Geared Transmission

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