Multidisciplinary Optimizationg Design Of Reliability Of3-PRPS Parallel Robot Considering The Uncertainty

Parallel robot mechanism has been widely used in machinery, aerospace,aviation and Marine areas due to its unique characteristics. And its design researchinvolves mechanical, electrical, control hydraulic and human engineering, etc.Therefore, the designer need to give sufficient consideration to mechanism designthat involves multiple disciplines and the mutual influence between variousdisciplines, use the multidisciplinary design optimization method to designparallel mechanism. This topic to a3-PRPS parallel robot mechanism as theresearch object, using the multidisciplinary design optimization theory with thereliability design method based on considering the influence of uncertainty factorson the structural design. The uncertainty was carried out based on the mechanismproblem of MDO and reliable research.Firstly, multidisciplinary design optimization and the basic knowledge ofuncertainty theory are presented. Which not only include the conception andfeatures of multidisciplinary design optimization and several commonoptimization method, but also the uncertainty of the source, classification and itstheoretical analysis method is put forward. Finally it has prepared formultidisciplinary design optimization study that based on the uncertainty.Secondly, we has used the probability theory in uncertainty analysis to therandom uncertainty problems in a robot’s system are described, and then studiedthe reliability design optimization and uncertainty problems in a multidisciplinarysystem, established the optimization model based on SORA. Finally we verifiedthe particularity and reliability of Isight DFSS multidisciplinary optimization.Thirdly, the parallel robot mechanism of was researched asdamping seat body including running smoothness, moving flexibility and bearingstiffness of optimization, that under the formal analysis and discussion. And weset up the uncertainty of the robot mechanism design optimization model, andbased on the Isight DFSS multidisciplinary optimization algorithm for reliability.This research not only helps engineering design optimization forparallel robot that close to the actual, but also enhances the level of the robot’sdesign and advanced manufacturing equipment that plays a guiding role in ourcountry.