Multi-source thread deformation analysis in planetary roller screws

Chang Wang

doi:10.1016/j.ijmecsci.2025.110770

Multi-source thread deformation analysis in planetary roller screws

2025-09-04

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DOI：10.1016/j.ijmecsci.2025.110770

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• Develops a coupled model that integrates screw transverse deformation with thread mechanics to analyze PRSM load distribution. • Proposes a novel discrete integration slice method to quantify the previously neglected thread deflection caused by roller body compliance. • Provides new insight by revealing the critical dependence of load uniformity on nut position, a direct consequence of the coupled deformation effects. • Experimentally validates the comprehensive model with ¡9% deviation, confirming its high accuracy for predicting complex stress states.

Multi-source thread deformation analysis in planetary roller screws

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