Abstract
The high contact stress of the first few teeth of the planetary roller screw mechanism can be effectively alleviated by convex–to–concave contact mode. The load distribution model is constructed based on the convex/concave tooth profile model, and the maximum contact stresses at the screw-roller and roller-nut interfaces are simultaneously considered to construct a multi-objective optimization model (MOOM). However, complicated arc contact will inevitably make the MOOM involves many nonlinear constraints (NCs). Therefore, a feasibility identification-based NSGA-II is used to locate and further search the complicated feasible regions brought by many NCs for searching the best structural parameters. The results show that the contact stresses over thread teeth are decreased based on the designed multi-objective modeling and optimization framework.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.