| Popis: |
The objective of this study is the application of multicriteria optimization to a planetary gear train predicted for use at slewing platform drive mechanism of hydraulic excavator. Based on the conditions under which transmission works, two stage planetary gear train consist of basic type of planetary gear trains is considered. A model of planetary gear multicriteria optimization based on an original algorithm implemented in the PlanGears software is used for that purpose. The basis for the algorithm is approximations of analytical expressions for volume, mass, efficiency and production costs. The following is adopted as optimization variables: numbers of teeth, number of satellites, module and facewidth. Conditions required for the proper functioning of the system regarding geometry and strength are expressed by the functional constraints. |
