The application of algorithm of solution of incorrectly specified problem is considered to correct the geometry of satellite pinions axes according to the results of indirect measurements. Based on the results of the excessive number of measurements and due to the presence of measurement errors, the probable geometry of the reduction gear box axes location and the necessary corrections are calculated using the least squares method.

The mathematical model for definition of hole coordinates under satellites in cariage of planetary gear by results of indirect measurements is improved. Algorithm of revealing and elimination of incorrect initial data in automatic or manual mode is developed and implemented.

The construction of mathematical models of the planetary gearbox was considered. The presented models allow to analyze the stress-strain state of individual components and, paying attention to the obtained deformations, to calculate the dynamic characteristics of the gearbox taking into account the static load. It was found that the asymmetry of the satellite nodes leads to distortions in the gear meshing. The influence of the available distortions in the meshes on vibroacoustic characteristics was investigated. The design solution to compensate the existing asymmetries and to eliminate the distortions in the meshes was proposed.

The aim of the work is to eliminate the shortcomings of the existing methods of selecting the parameters of grapple for bulk materials and to develop an appropriate software. The necessary analytical dependences for the existing graphic data were obtained, which allow to choose the optimal parameters of the grapple with the help of a computer. The recommendations on the choice of parameters of the grapple depending on the load capacity of the grab crane and bulk material types are given, according to the results of the research.

The purpose of this paper is to clarify the recommendations and to develop a methodology for calculating multi-piston pneumatic motors (pneumatic positioners) for analyzing the movement parameters of a pneumatic drive and taking into account the need for a smooth stop of the output rod. A system of differential equations is obtained, the solution of which gives a description of the dynamics processes occurring during the operation of a multi-piston pneumatic actuator. The software has been developed that allows to obtain a number of graphical dependencies, on the basis of which the designer decides on the expediency of using braking by the method of throttling the inputs and outputs of the pneumatic motor chambers.